| Prefix 1-503-200 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-201 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-202 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-203 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-204 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-205 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-206 | County Multnomah | City Portland | Carrier Onvoy, Llc - Or |
| Prefix 1-503-207 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-208 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-209 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-210 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-212 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-213 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-214 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-215 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-216 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-217 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-218 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-219 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-220 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-221 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-222 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-223 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-224 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-225 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-226 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-227 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-228 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-229 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-230 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-231 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-232 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-233 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-234 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-235 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-236 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-237 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-238 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-239 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-240 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-241 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-242 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-243 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-244 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-245 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-246 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-247 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-248 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-249 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-250 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-251 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-252 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-253 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-254 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-255 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-256 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-257 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-258 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-259 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-260 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-261 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-262 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-263 | County Clackamas | City Canby | Carrier Canby Telephone Association |
| Prefix 1-503-264 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-265 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-266 | County Clackamas | City Canby | Carrier Canby Telephone Association |
| Prefix 1-503-267 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-268 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-269 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-270 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-271 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-272 | County Multnomah | City Portland | Carrier Centurytel Of Oregon, Inc. Dba Centurylink |
| Prefix 1-503-273 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-274 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-275 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-276 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-277 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-278 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-279 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-280 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-281 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-282 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-283 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-284 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-285 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-286 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-287 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-288 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-289 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-290 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-291 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-292 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-293 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-294 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-295 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-296 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-297 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-298 | County Washington | City Hillsboro | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-299 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-300 | County Yamhill | City Sheridan | Carrier Charter Fiberlink Or-ccvii, Llc - Or |
| Prefix 1-503-301 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-302 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-303 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-304 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-305 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-306 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-307 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-308 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-309 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-310 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-312 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-313 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-314 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-315 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-316 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-317 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-318 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-319 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-320 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-321 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-322 | County Tillamook | City Garibaldi | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-323 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-324 | County Washington | City Banks | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-325 | County Clatsop | City Astoria | Carrier Qwest Corporation |
| Prefix 1-503-326 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-327 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-328 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-329 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-330 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-331 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-332 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-333 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-334 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-335 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-336 | County Washington | City Beaverton | Carrier Comcast Phone Of Oregon, Llc - Or |
| Prefix 1-503-337 | County Clackamas | City Estacada | Carrier Cascade Utilities, Inc. |
| Prefix 1-503-338 | County Clatsop | City Astoria | Carrier Qwest Corporation |
| Prefix 1-503-339 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-340 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-341 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-342 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-343 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-344 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-345 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-346 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-347 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-348 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-349 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-350 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-351 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-352 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-353 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-354 | County Yamhill | City Sheridan | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-355 | County Tillamook | City Rockaway Beach | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-356 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-357 | County Washington | City Forest Grove | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-358 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-359 | County Washington | City Forest Grove | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-360 | County Multnomah | City Portland | Carrier Neutral Tandem-oregon, Llc - Or |
| Prefix 1-503-361 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-362 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-363 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-364 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-365 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-366 | County Columbia | City Saint Helens | Carrier Qwest Corporation |
| Prefix 1-503-367 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-368 | County Tillamook | City Nehalem | Carrier Nehalem Telecomms, Inc. Dba Nehalem Tel & Tel |
| Prefix 1-503-369 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-370 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-371 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-372 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-373 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-374 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-375 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-376 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-377 | County Tillamook | City Bay City | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-378 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-379 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-380 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-381 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-382 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-383 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-384 | County Washington | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-385 | County Marion | City Salem | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-386 | County Multnomah | City Portland | Carrier Onvoy, Llc - Or |
| Prefix 1-503-387 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-388 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-389 | County Multnomah | City Portland | Carrier Xo Oregon, Inc. |
| Prefix 1-503-390 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-391 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-392 | County Tillamook | City Cloverdale | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-393 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-394 | County Linn | City Scio | Carrier Scio Mutual Telephone Association |
| Prefix 1-503-395 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-396 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-397 | County Columbia | City Saint Helens | Carrier Qwest Corporation |
| Prefix 1-503-398 | County Tillamook | City Cloverdale | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-399 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-400 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-401 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-402 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-403 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-404 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-405 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-406 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-407 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-408 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-409 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-410 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-412 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-413 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-414 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-415 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-416 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-417 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-418 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-419 | County Washington | City Beaverton | Carrier Xo Oregon, Inc. |
| Prefix 1-503-420 | County Multnomah | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-421 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-422 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-423 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-424 | County Yamhill | City McMinnville | Carrier Oregon Tel, Llc - Or |
| Prefix 1-503-425 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-426 | County Multnomah | City Portland | Carrier North County Communications Corp. - Or |
| Prefix 1-503-427 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-428 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-429 | County Columbia | City Vernonia | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-430 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-431 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-432 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-433 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-434 | County Yamhill | City McMinnville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-435 | County Yamhill | City McMinnville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-436 | County Clatsop | City Cannon Beach | Carrier Qwest Corporation |
| Prefix 1-503-437 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-438 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-439 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-440 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-441 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-442 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-443 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-444 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-445 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-446 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-447 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-448 | County Marion | City Stayton | Carrier Scs Communications And Security, Inc. - Or |
| Prefix 1-503-449 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-450 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-451 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-452 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-453 | County Multnomah | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-454 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-455 | County Columbia | City Clatskanie | Carrier Qwest Corporation |
| Prefix 1-503-456 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-457 | County Yamhill | City Sheridan | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-458 | County Clatsop | City Astoria | Carrier Centurytel Of Oregon Dba Centurylink |
| Prefix 1-503-459 | County Washington | City Hillsboro | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-460 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-461 | County Clatsop | City Astoria | Carrier Universal Telecommunications, Inc. |
| Prefix 1-503-462 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-463 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-464 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-465 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-466 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-467 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-468 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-469 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-470 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-471 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-472 | County Yamhill | City McMinnville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-473 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-474 | County Yamhill | City McMinnville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-475 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-476 | County Washington | City Hillsboro | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-477 | County Multnomah | City Portland | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-478 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-479 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-480 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-481 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-482 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-483 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-484 | County Multnomah | City Portland | Carrier At&t Local |
| Prefix 1-503-485 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-486 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-487 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-488 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-489 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-490 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-491 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-492 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-493 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-494 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-495 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-496 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-497 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-498 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-499 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-500 | County Multnomah | City Portland | Carrier Teltrust Corporation - Or |
| Prefix 1-503-501 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-502 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-504 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-505 | County Washington | City Hillsboro | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-506 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-507 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-508 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-509 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-510 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-512 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-513 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-514 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-515 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-516 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-517 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-518 | County Clackamas | City Beavercreek | Carrier Beaver Creek Cooperative Telephone Co. |
| Prefix 1-503-519 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-520 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-521 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-522 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-523 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-524 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-525 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-526 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-527 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-528 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-529 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-530 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-531 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-532 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-533 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-534 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-535 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-536 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-537 | County Yamhill | City Newberg | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-538 | County Yamhill | City Newberg | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-539 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-540 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-542 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-543 | County Columbia | City Scappoose | Carrier Centurytel Of Oregon Dba Centurylink |
| Prefix 1-503-544 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-545 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-546 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-547 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-548 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-549 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-550 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-551 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-552 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-553 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-554 | County Yamhill | City Newberg | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-555 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-556 | County Columbia | City Rainier | Carrier Qwest Corporation |
| Prefix 1-503-557 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-558 | County Clackamas | City Clackamas | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-559 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-560 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-561 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-562 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-563 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-564 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-565 | County Yamhill | City McMinnville | Carrier Oregon Tel, Llc - Or |
| Prefix 1-503-566 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-567 | County Multnomah | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-568 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-569 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-570 | County Clackamas | City Wilsonville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-571 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-572 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-573 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-574 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-575 | County Washington | City Beaverton | Carrier Xo Oregon, Inc. |
| Prefix 1-503-576 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-577 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-578 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-579 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-580 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-581 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-582 | County Clackamas | City Wilsonville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-583 | County Multnomah | City Portland | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-584 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-585 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-586 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-587 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-588 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-589 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-590 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-591 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-592 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-593 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-594 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-595 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-596 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-597 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-598 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-599 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-600 | County Marion | City Woodburn | Carrier Astound Broadband, Llc - Or |
| Prefix 1-503-601 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-602 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-603 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-604 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-605 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-606 | County Polk | City Independence | Carrier Qwest Corporation |
| Prefix 1-503-607 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-608 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-609 | County Multnomah | City Portland | Carrier Bandwidth.com Clec, Llc - Or |
| Prefix 1-503-610 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-612 | County Washington | City Tualatin | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-613 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-614 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-615 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-616 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-617 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-618 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-619 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-620 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-621 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-622 | County Clackamas | City Welches | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-623 | County Polk | City Dallas | Carrier Qwest Corporation |
| Prefix 1-503-624 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-625 | County Washington | City Sherwood | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-626 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-627 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-628 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-629 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-630 | County Clackamas | City Estacada | Carrier Cascade Utilities, Inc. |
| Prefix 1-503-631 | County Clackamas | City Oregon City | Carrier Clear Creek Mutual Telephone Co. |
| Prefix 1-503-632 | County Clackamas | City Beavercreek | Carrier Beaver Creek Cooperative Telephone Co. |
| Prefix 1-503-633 | County Marion | City Saint Paul | Carrier St Paul Cooperative Telephone Association |
| Prefix 1-503-634 | County | City | Carrier Monitor Cooperative Telephone Co. |
| Prefix 1-503-635 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-636 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-637 | County Clackamas | City Estacada | Carrier Cascade Utilities, Inc. |
| Prefix 1-503-638 | County Washington | City Tualatin | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-639 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-640 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-641 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-642 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-643 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-644 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-645 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-646 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-647 | County Washington | City North Plains | Carrier Qwest Corporation |
| Prefix 1-503-648 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-649 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-650 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-651 | County Clackamas | City Canby | Carrier Canby Telephone Association |
| Prefix 1-503-652 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-653 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-654 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-655 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-656 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-657 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-658 | County Clackamas | City Clackamas | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-659 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-660 | County Multnomah | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-661 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-662 | County Yamhill | City Yamhill | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-663 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-664 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-665 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-666 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-667 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-668 | County Clackamas | City Sandy | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-669 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-670 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-671 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-672 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-673 | County Multnomah | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-674 | County Multnomah | City Gresham | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-675 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-676 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-677 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-678 | County Marion | City Aurora | Carrier Centurytel Of Oregon Dba Centurylink |
| Prefix 1-503-679 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-680 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-681 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-682 | County Clackamas | City Wilsonville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-683 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-684 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-685 | County Clackamas | City Wilsonville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-686 | County Washington | City Hillsboro | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-687 | County Yamhill | City McMinnville | Carrier Pacific Wave Communications |
| Prefix 1-503-688 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-689 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-690 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-691 | County Washington | City Tualatin | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-692 | County Washington | City Tualatin | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-693 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-694 | County Marion | City Aurora | Carrier Centurytel Of Oregon Dba Centurylink |
| Prefix 1-503-695 | County Multnomah | City Corbett | Carrier Cascade Utilities, Inc. |
| Prefix 1-503-696 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-697 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-698 | County Clackamas | City Clackamas | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-699 | County | City | Carrier Qwest Corporation |
| Prefix 1-503-701 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-702 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-703 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-704 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-705 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-706 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-707 | County Washington | City Hillsboro | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-708 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-709 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-710 | County Washington | City Portland | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-712 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-713 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-714 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-715 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-716 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-717 | County Clatsop | City Seaside | Carrier Qwest Corporation |
| Prefix 1-503-718 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-719 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-720 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-721 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-722 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-723 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-724 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-725 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-726 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-727 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-728 | County Columbia | City Clatskanie | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-729 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-730 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-731 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-732 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-733 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-734 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-735 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-736 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-737 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-738 | County Clatsop | City Seaside | Carrier Qwest Corporation |
| Prefix 1-503-739 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-740 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-741 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-742 | County Clackamas | City Oregon City | Carrier Qwest Corporation |
| Prefix 1-503-743 | County Marion | City Turner | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-744 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-745 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-746 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-747 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-748 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-749 | County Marion | City Aumsville | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-750 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-751 | County Polk | City Independence | Carrier Qwest Corporation |
| Prefix 1-503-752 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-753 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-754 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-755 | County Multnomah | City Portland | Carrier Centurytel Of Oregon, Inc. Dba Centurylink |
| Prefix 1-503-756 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-757 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-758 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-759 | County Clackamas | City Molalla | Carrier Molalla Telephone Co. |
| Prefix 1-503-760 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-761 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-762 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-763 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-764 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-765 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-766 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-767 | County Marion | City Stayton | Carrier Stayton Cooperative Telephone Co. |
| Prefix 1-503-768 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-769 | County Marion | City Stayton | Carrier Stayton Cooperative Telephone Co. |
| Prefix 1-503-770 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-771 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-772 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-773 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-774 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-775 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-776 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-777 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-778 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-779 | County Marion | City Salem | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-780 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-781 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-782 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-783 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-784 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-785 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-786 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-787 | County Polk | City Falls City | Carrier Qwest Corporation |
| Prefix 1-503-788 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-789 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-790 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-791 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-792 | County Marion | City Gervais | Carrier Gervais Telephone Co. |
| Prefix 1-503-793 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-794 | County Clackamas | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-795 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-796 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-797 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-798 | County Marion | City Salem | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-799 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-800 | County Marion | City Woodburn | Carrier Astound Broadband, Llc - Or |
| Prefix 1-503-801 | County Yamhill | City Sheridan | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-802 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-803 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-804 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-805 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-806 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-807 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-808 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-809 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-810 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-812 | County Yamhill | City Sheridan | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-813 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-814 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-815 | County Tillamook | City Tillamook | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-816 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-817 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-818 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-819 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-820 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-821 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-822 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-823 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-824 | County Clackamas | City Colton | Carrier Colton Telephone Co. |
| Prefix 1-503-825 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-826 | County Clackamas | City Sandy | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-827 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-828 | County Washington | City Hillsboro | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-829 | County Clackamas | City Molalla | Carrier Molalla Telephone Co. |
| Prefix 1-503-830 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-831 | County Polk | City Dallas | Carrier Qwest Corporation |
| Prefix 1-503-832 | County Multnomah | City Portland | Carrier Global Crossing Local Services, Inc.-or |
| Prefix 1-503-833 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-834 | County Clackamas | City Estacada | Carrier Cascade Utilities, Inc. |
| Prefix 1-503-835 | County Yamhill | City Amity | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-836 | County Multnomah | City Portland | Carrier Level 3 Communications, Llc - Or |
| Prefix 1-503-837 | County Multnomah | City Portland | Carrier Monmouth Independence Network Dba Minet - Or |
| Prefix 1-503-838 | County Polk | City Independence | Carrier Qwest Corporation |
| Prefix 1-503-839 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-840 | County Washington | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-841 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-842 | County Tillamook | City Tillamook | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-843 | County Yamhill | City Sheridan | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-844 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-845 | County Marion | City Mount Angel | Carrier Mt. Angel Telephone Co. |
| Prefix 1-503-846 | County Washington | City Hillsboro | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-847 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-848 | County Washington | City Beaverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-849 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-850 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-851 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-852 | County Yamhill | City Carlton | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-853 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-854 | County Multnomah | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-855 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-856 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-857 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-858 | County Washington | City Hillsboro | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-859 | County Linn | City Lyons | Carrier Peoples Tel Co |
| Prefix 1-503-860 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-861 | County Clatsop | City Warrenton | Carrier Qwest Corporation |
| Prefix 1-503-862 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-863 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-864 | County Yamhill | City Dayton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-865 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-866 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-867 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-868 | County Multnomah | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-869 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-870 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-871 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-872 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-873 | County Marion | City Silverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-874 | County Marion | City Silverton | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-875 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-876 | County Yamhill | City Willamina | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-877 | County Multnomah | City Portland | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-878 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-879 | County Polk | City Grand Ronde | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-880 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-881 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-882 | County Washington | City Beaverton | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-883 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-884 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-885 | County Washington | City Tualatin | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-886 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-887 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-888 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-889 | County Multnomah | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-890 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-891 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-892 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-893 | County Multnomah | City Portland | Carrier Magna5 Llc |
| Prefix 1-503-894 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-895 | County Washington | City Beaverton | Carrier Ymax Communications Corp. - Or |
| Prefix 1-503-896 | County Multnomah | City Portland | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-897 | County Linn | City Mill City | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-898 | County Multnomah | City Portland | Carrier Beaver Creek Cooperative Telephone Co. |
| Prefix 1-503-899 | County Washington | City Hillsboro | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-900 | County Marion | City Woodburn | Carrier Astound Broadband, Llc - Or |
| Prefix 1-503-901 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-902 | County Multnomah | City Portland | Carrier Astound Broadband, Llc - Or |
| Prefix 1-503-903 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-904 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-905 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-906 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-907 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-908 | County Multnomah | City Portland | Carrier Comcast Phone Of Oregon, Llc - Or |
| Prefix 1-503-909 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-910 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-912 | County Multnomah | City Portland | Carrier Comcast Phone Of Oregon, Llc - Or |
| Prefix 1-503-913 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-914 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-915 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-916 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-917 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-918 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-919 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-920 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-921 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-922 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-923 | County Multnomah | City Portland | Carrier Eltopia Communications, Llc - Or |
| Prefix 1-503-924 | County Washington | City Portland | Carrier Integra Telecom Of Oregon, Inc. - Or |
| Prefix 1-503-925 | County Washington | City Sherwood | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-926 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-927 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-928 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-929 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-930 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-931 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-932 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-933 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-934 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-935 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-936 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-937 | County Multnomah | City Portland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-503-938 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-939 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-940 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-941 | County Multnomah | City Portland | Carrier Level 3 Telecom Of Oregon, Llc - Or |
| Prefix 1-503-942 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-943 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-944 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-945 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-946 | County Washington | City Portland | Carrier Teleport Communications America, Llc - Or |
| Prefix 1-503-947 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-948 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-949 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-951 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-952 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-953 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-954 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-955 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-956 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-957 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-960 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-961 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-962 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-963 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-964 | County Washington | City Hillsboro | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-965 | County Tillamook | City Cloverdale | Carrier United Telephone-northwest-or Dba Centurylink - Or |
| Prefix 1-503-966 | County Multnomah | City Portland | Carrier Onvoy, Llc - Or |
| Prefix 1-503-967 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-968 | County Washington | City Portland | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-969 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-970 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-972 | County Multnomah | City Portland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Or |
| Prefix 1-503-973 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-974 | County Multnomah | City Portland | Carrier Comcast Phone Of Oregon, Llc - Or |
| Prefix 1-503-975 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-977 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-978 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-979 | County Multnomah | City Portland | Carrier Astound Broadband, Llc - Or |
| Prefix 1-503-980 | County Marion | City Woodburn | Carrier Qwest Corporation |
| Prefix 1-503-981 | County Marion | City Woodburn | Carrier Qwest Corporation |
| Prefix 1-503-982 | County Marion | City Woodburn | Carrier Qwest Corporation |
| Prefix 1-503-983 | County Marion | City Salem | Carrier Cellco Partnership Dba Verizon Wireless - Or |
| Prefix 1-503-984 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-985 | County Washington | City Gaston | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-986 | County Marion | City Salem | Carrier Qwest Corporation |
| Prefix 1-503-987 | County Multnomah | City Portland | Carrier Comcast Phone Of Oregon, Llc - Or |
| Prefix 1-503-988 | County Multnomah | City Portland | Carrier Qwest Corporation |
| Prefix 1-503-989 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-990 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-991 | County Washington | City Portland | Carrier Sprint Spectrum L.p. |
| Prefix 1-503-992 | County Washington | City Forest Grove | Carrier Frontier Communications Northwest, Inc. - Or |
| Prefix 1-503-993 | County Multnomah | City Portland | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-503-994 | County Multnomah | City Portland | Carrier Onvoy, Llc - Or |
| Prefix 1-503-995 | County Multnomah | City Portland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-503-996 | County Marion | City Woodburn | Carrier Astound Broadband, Llc - Or |
| Prefix 1-503-997 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-998 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |
| Prefix 1-503-999 | County Multnomah | City Portland | Carrier T-mobile Usa, Inc. |