| Prefix 1-415-200 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-201 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-202 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-203 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-204 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-205 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-206 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-207 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-208 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-209 | County Marin | City Novato | Carrier Frontier California Inc. |
| Prefix 1-415-210 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-212 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-213 | County Santa Clara | City San Jose | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-214 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-215 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-216 | County Alameda | City Oakland | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-217 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-218 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-219 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-220 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-221 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-222 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-223 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-224 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-225 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-226 | County San Francisco | City San Francisco | Carrier Global Crossing Local Services, Inc.-ca |
| Prefix 1-415-227 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-228 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-229 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-230 | County Marin | City San Rafael | Carrier Neutral Tandem-california, Llc - Ca |
| Prefix 1-415-231 | County Santa Clara | City San Jose | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-232 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-233 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-234 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-235 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-236 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-237 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-238 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-239 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-240 | County Alameda | City Oakland | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-241 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-242 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-243 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-244 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-245 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-246 | County Contra Costa | City Concord | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-247 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-248 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-249 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-250 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-251 | County San Francisco | City San Francisco | Carrier Ymax Communications Corp. - Ca |
| Prefix 1-415-252 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-253 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-254 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-255 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-256 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-257 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-258 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-259 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-260 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-261 | County Alameda | City Oakland | Carrier Metro Pcs, Inc. |
| Prefix 1-415-262 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-263 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-264 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-265 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-266 | County Santa Clara | City San Jose | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-267 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-268 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-269 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-270 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-271 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-272 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-273 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-274 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-275 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-276 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-277 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-278 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-279 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-280 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-281 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-282 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-283 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-284 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-285 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-286 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-287 | County San Francisco | City San Francisco | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-288 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-289 | County Marin | City Sausalito | Carrier Pacific Bell |
| Prefix 1-415-290 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-291 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-292 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-293 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-294 | County San Francisco | City San Francisco | Carrier Global Crossing Local Services, Inc.-ca |
| Prefix 1-415-295 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-296 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-297 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-298 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-299 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-300 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-301 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-302 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-303 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-304 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-305 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-306 | County | City | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-307 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-308 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-309 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-310 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-312 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-313 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-314 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-315 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-316 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-317 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-318 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-319 | County San Francisco | City San Francisco | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-320 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-321 | County Santa Clara | City San Jose | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-322 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-323 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-324 | County Santa Clara | City San Jose | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-325 | County Alameda | City Fremont | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-326 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-327 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-328 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-329 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-330 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-331 | County Marin | City Sausalito | Carrier Pacific Bell |
| Prefix 1-415-332 | County Marin | City Sausalito | Carrier Pacific Bell |
| Prefix 1-415-333 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-334 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-335 | County Alameda | City Oakland | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-336 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-337 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-338 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-339 | County Marin | City Sausalito | Carrier Pacific Bell |
| Prefix 1-415-340 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-341 | County Alameda | City Oakland | Carrier Astound Broadband, Llc - Ca |
| Prefix 1-415-342 | County Contra Costa | City Concord | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-343 | County Alameda | City Hayward | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-344 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-345 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-346 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-347 | County San Francisco | City San Francisco | Carrier At&t Corp. |
| Prefix 1-415-348 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-349 | County San Francisco | City San Francisco | Carrier Astound Broadband, Llc - Ca |
| Prefix 1-415-350 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-351 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-352 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-353 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-354 | County Santa Clara | City San Jose | Carrier Broadwing Communications, Llc - Ca |
| Prefix 1-415-355 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-356 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-357 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-358 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-359 | County Alameda | City Oakland | Carrier Pacific Bell |
| Prefix 1-415-360 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-361 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-362 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-363 | County Santa Clara | City San Jose | Carrier Peerless Network Of California, Llc - Ca |
| Prefix 1-415-364 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-365 | County Alameda | City Hayward | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-366 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-367 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-368 | County Alameda | City Oakland | Carrier Xo California, Inc. |
| Prefix 1-415-369 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-370 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-371 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-372 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-373 | County San Francisco | City San Francisco | Carrier Global Crossing Local Services, Inc.-ca |
| Prefix 1-415-374 | County Alameda | City Oakland | Carrier Pacific Bell |
| Prefix 1-415-375 | County San Francisco | City San Francisco | Carrier Global Crossing Local Services, Inc.-ca |
| Prefix 1-415-376 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-377 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-378 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-379 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-380 | County Marin | City Mill Valley | Carrier Pacific Bell |
| Prefix 1-415-381 | County Marin | City Mill Valley | Carrier Pacific Bell |
| Prefix 1-415-382 | County Marin | City Novato | Carrier Pacific Bell |
| Prefix 1-415-383 | County Marin | City Mill Valley | Carrier Pacific Bell |
| Prefix 1-415-384 | County Marin | City Mill Valley | Carrier Pacific Bell |
| Prefix 1-415-385 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-386 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-387 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-388 | County Marin | City Mill Valley | Carrier Pacific Bell |
| Prefix 1-415-389 | County Marin | City Mill Valley | Carrier Pacific Bell |
| Prefix 1-415-390 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-391 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-392 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-393 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-394 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-395 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-396 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-397 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-398 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-399 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-400 | County Santa Clara | City San Jose | Carrier Race Telecommunications, Inc. - Ca |
| Prefix 1-415-401 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-402 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-403 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-404 | County Solano | City Fairfield | Carrier Pacific Bell |
| Prefix 1-415-405 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-406 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-407 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-408 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-409 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-410 | County Alameda | City Oakland | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-412 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-413 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-414 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-416 | County Solano | City Fairfield | Carrier Wide Voice, Llc - Ca |
| Prefix 1-415-417 | County San Francisco | City San Francisco | Carrier Neutral Tandem-california, Llc - Ca |
| Prefix 1-415-418 | County Solano | City Fairfield | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-419 | County Santa Clara | City San Jose | Carrier Mpower Communications Corp - Ca |
| Prefix 1-415-420 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-421 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-422 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-423 | County San Francisco | City San Francisco | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-424 | County Alameda | City Oakland | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-425 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-426 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-427 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-428 | County San Francisco | City San Francisco | Carrier North County Communications Corp. - Ca |
| Prefix 1-415-429 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-430 | County Santa Clara | City San Jose | Carrier Mpower Communications Corp - Ca |
| Prefix 1-415-431 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-432 | County Santa Clara | City San Jose | Carrier Peerless Network Of California, Llc - Ca |
| Prefix 1-415-433 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-434 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-435 | County Marin | City Belvedere Tiburon | Carrier Pacific Bell |
| Prefix 1-415-436 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-437 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-438 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-439 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-440 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-441 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-442 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-443 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-444 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-445 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-446 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-447 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-448 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-449 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-450 | County Solano | City Fairfield | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-451 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-452 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-453 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-454 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-455 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-456 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-457 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-458 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-459 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-460 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-461 | County Marin | City Larkspur | Carrier Pacific Bell |
| Prefix 1-415-462 | County Santa Clara | City San Jose | Carrier Broadwing Communications, Llc - Ca |
| Prefix 1-415-463 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-464 | County Marin | City Larkspur | Carrier Pacific Bell |
| Prefix 1-415-465 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-466 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-467 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-468 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-469 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-470 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-471 | County Solano | City Fairfield | Carrier Cbeyond Communications, Llc - Ca |
| Prefix 1-415-472 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-473 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-474 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-475 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-476 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-477 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-478 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-479 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-480 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-481 | County Alameda | City Oakland | Carrier Centurylink Communications Llc |
| Prefix 1-415-482 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-483 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-484 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-485 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-486 | County San Francisco | City San Francisco | Carrier At&t Local |
| Prefix 1-415-487 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-488 | County Marin | City San Geronimo | Carrier Pacific Bell |
| Prefix 1-415-489 | County Alameda | City Oakland | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-490 | County Alameda | City Hayward | Carrier Brooks Fiber Communications Of California - Ca |
| Prefix 1-415-491 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-492 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-493 | County Marin | City San Rafael | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-494 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-495 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-496 | County San Francisco | City San Francisco | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-497 | County San Francisco | City San Francisco | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-498 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-499 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-500 | County Alameda | City Fremont | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-501 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-502 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-503 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-504 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-505 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-506 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-507 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-508 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-509 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-510 | County Alameda | City Oakland | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-512 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-513 | County Alameda | City Oakland | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-514 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-515 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-516 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-517 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-518 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-519 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-520 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-521 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-522 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-523 | County San Francisco | City San Francisco | Carrier Peerless Network Of California, Llc - Ca |
| Prefix 1-415-524 | County Alameda | City Oakland | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-525 | County Alameda | City Oakland | Carrier Utility Telecom Group, Llc - Ca |
| Prefix 1-415-526 | County Marin | City San Rafael | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-527 | County Santa Clara | City Santa Clara | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-528 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-529 | County San Francisco | City San Francisco | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-530 | County Santa Clara | City Santa Clara | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-531 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-532 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-533 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-534 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-535 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-536 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-537 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-538 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-539 | County San Francisco | City San Francisco | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-540 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-541 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-542 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-543 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-544 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-545 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-546 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-547 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-548 | County San Francisco | City San Francisco | Carrier Neutral Tandem-california, Llc - Ca |
| Prefix 1-415-549 | County Santa Clara | City San Jose | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-550 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-551 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-552 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-553 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-554 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-555 | County | City | Carrier Multiple Ocn Listing |
| Prefix 1-415-556 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-557 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-558 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-559 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-560 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-561 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-562 | County San Francisco | City San Francisco | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-563 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-564 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-565 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-566 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-567 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-568 | County Alameda | City Oakland | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-569 | County San Francisco | City San Francisco | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-570 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-571 | County Alameda | City Oakland | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-572 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-573 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-574 | County Alameda | City Oakland | Carrier Metro Pcs, Inc. |
| Prefix 1-415-575 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-576 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-577 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-578 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-579 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-580 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-581 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-582 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-583 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-584 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-585 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-586 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-587 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-588 | County San Francisco | City San Francisco | Carrier 33 Wireless Inc. |
| Prefix 1-415-589 | County Alameda | City Hayward | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-590 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-591 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-592 | County | City | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-593 | County | City | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-594 | County San Francisco | City San Francisco | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-595 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-596 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-597 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-598 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-599 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-600 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-601 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-602 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-603 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-604 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-605 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-606 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-607 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-608 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-609 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-610 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-612 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-613 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-614 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-615 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-616 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-617 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-618 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-619 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-620 | County San Francisco | City San Francisco | Carrier 33 Wireless Inc. |
| Prefix 1-415-621 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-622 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-623 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-624 | County Santa Clara | City Santa Clara | Carrier Pacific Bell |
| Prefix 1-415-625 | County San Francisco | City San Francisco | Carrier Cbeyond Communications, Llc - Ca |
| Prefix 1-415-626 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-627 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-629 | County Santa Clara | City Santa Clara | Carrier Getgo Communications Llc - Ca |
| Prefix 1-415-630 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-631 | County San Francisco | City San Francisco | Carrier North County Communications Corp. - Ca |
| Prefix 1-415-632 | County Alameda | City Oakland | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-633 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-634 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-635 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-636 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-637 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-638 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-639 | County Alameda | City Oakland | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-640 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-641 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-642 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-643 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-644 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-645 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-646 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-647 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-648 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-649 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-650 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-651 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-652 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-653 | County Santa Clara | City San Jose | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-654 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-655 | County Marin | City San Rafael | Carrier Neutral Tandem-california, Llc - Ca |
| Prefix 1-415-656 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-657 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-658 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-659 | County Alameda | City Hayward | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-660 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-661 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-662 | County Marin | City Nicasio | Carrier Pacific Bell |
| Prefix 1-415-663 | County Marin | City Point Reyes Station | Carrier Pacific Bell |
| Prefix 1-415-664 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-665 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-666 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-667 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-668 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-669 | County Marin | City Inverness | Carrier Pacific Bell |
| Prefix 1-415-670 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-671 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-672 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-673 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-674 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-675 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-676 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-677 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-678 | County Alameda | City Oakland | Carrier Pacific Bell |
| Prefix 1-415-679 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-680 | County Solano | City Fairfield | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-681 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-682 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-683 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-684 | County Alameda | City Oakland | Carrier Cbeyond Communications, Llc - Ca |
| Prefix 1-415-685 | County Alameda | City Oakland | Carrier Neutral Tandem-california, Llc - Ca |
| Prefix 1-415-686 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-687 | County Santa Clara | City San Jose | Carrier Peerless Network Of California, Llc - Ca |
| Prefix 1-415-688 | County San Francisco | City San Francisco | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-689 | County San Francisco | City San Francisco | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-690 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-691 | County Alameda | City Oakland | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-692 | County San Francisco | City San Francisco | Carrier At&t Local |
| Prefix 1-415-693 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-694 | County Santa Clara | City Santa Clara | Carrier Pacific Centrex Services, Inc. - Ca |
| Prefix 1-415-695 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-696 | County San Francisco | City San Francisco | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-697 | County Solano | City Fairfield | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-698 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-699 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-701 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-702 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-703 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-704 | County Santa Clara | City San Jose | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-705 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-706 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-707 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-708 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-709 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-710 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-712 | County Alameda | City Oakland | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-713 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-714 | County Alameda | City Oakland | Carrier American Messaging Services, Llc |
| Prefix 1-415-715 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-716 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-717 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-718 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-719 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-720 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-721 | County Marin | City San Rafael | Carrier Pacific Bell |
| Prefix 1-415-722 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-723 | County Santa Clara | City San Jose | Carrier Broadwing Communications, Llc - Ca |
| Prefix 1-415-724 | County Alameda | City Oakland | Carrier Metro Pcs, Inc. |
| Prefix 1-415-725 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-726 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-727 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-728 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-729 | County San Francisco | City San Francisco | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-730 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-731 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-732 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-733 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-734 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-735 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-736 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-737 | County | City | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-738 | County Santa Clara | City San Jose | Carrier Broadwing Communications, Llc - Ca |
| Prefix 1-415-739 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-740 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-741 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-742 | County Alameda | City Oakland | Carrier Comcast Phone Of California, Llc - Ca |
| Prefix 1-415-743 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-744 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-745 | County San Francisco | City San Francisco | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-746 | County San Francisco | City San Francisco | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-747 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-748 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-749 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-750 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-751 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-752 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-753 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-754 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-755 | County Santa Clara | City San Jose | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-756 | County Alameda | City Oakland | Carrier Metro Pcs, Inc. |
| Prefix 1-415-757 | County Solano | City Fairfield | Carrier 365 Wireless, Llc |
| Prefix 1-415-758 | County San Francisco | City San Francisco | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-759 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-760 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-761 | County Santa Clara | City San Jose | Carrier Peerless Network Of California, Llc - Ca |
| Prefix 1-415-762 | County San Francisco | City San Francisco | Carrier Global Crossing Local Services, Inc.-ca |
| Prefix 1-415-763 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-764 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-765 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-766 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-767 | County Alameda | City Oakland | Carrier Electric Lightwave, Llc Dba Integra Telecom - Ca |
| Prefix 1-415-768 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-769 | County Alameda | City Oakland | Carrier At&t Corp. |
| Prefix 1-415-770 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-771 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-772 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-773 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-774 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-775 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-776 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-777 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-778 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-779 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-780 | County Sonoma | City Santa Rosa | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-781 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-782 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-783 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-784 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-785 | County Santa Clara | City San Jose | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-786 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-787 | County San Francisco | City San Francisco | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-788 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-789 | County Marin | City Belvedere Tiburon | Carrier Pacific Bell |
| Prefix 1-415-790 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-791 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-792 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-793 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-794 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-795 | County Alameda | City Fremont | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-796 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-797 | County San Francisco | City San Francisco | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-798 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-799 | County San Francisco | City San Francisco | Carrier Mpower Communications Corp - Ca |
| Prefix 1-415-800 | County San Francisco | City San Francisco | Carrier Vaya Telecom, Inc. - Ca |
| Prefix 1-415-801 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-802 | County San Francisco | City San Francisco | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-803 | County San Francisco | City San Francisco | Carrier 33 Wireless Inc. |
| Prefix 1-415-804 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-805 | County San Francisco | City San Francisco | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-806 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-807 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-808 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-809 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-810 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-812 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-813 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-814 | County San Francisco | City San Francisco | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-815 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-816 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-817 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-818 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-819 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-820 | County Santa Clara | City San Jose | Carrier Mpower Communications Corp - Ca |
| Prefix 1-415-821 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-822 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-823 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-824 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-825 | County San Francisco | City San Francisco | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-826 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-827 | County Contra Costa | City Concord | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-828 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-829 | County Santa Clara | City San Jose | Carrier Mpower Communications Corp - Ca |
| Prefix 1-415-830 | County San Francisco | City San Francisco | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-831 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-832 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-833 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-834 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-835 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-836 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-837 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-838 | County San Francisco | City San Francisco | Carrier American Messaging Services, Llc |
| Prefix 1-415-839 | County Santa Clara | City San Jose | Carrier Pacific Bell |
| Prefix 1-415-840 | County Alameda | City Hayward | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-841 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-842 | County San Francisco | City San Francisco | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-843 | County San Francisco | City San Francisco | Carrier Allegiance Telecom, Inc. - Ca |
| Prefix 1-415-844 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-845 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-846 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-847 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-848 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-849 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-850 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-851 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-852 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-853 | County San Francisco | City San Francisco | Carrier Mosaic Networx Llc - Ca |
| Prefix 1-415-854 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-855 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-856 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-857 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-858 | County Solano | City Fairfield | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-859 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-860 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-861 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-862 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-863 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-864 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-865 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-866 | County San Francisco | City San Francisco | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-867 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-868 | County Marin | City Stinson Beach | Carrier Pacific Bell |
| Prefix 1-415-869 | County Santa Clara | City San Jose | Carrier Broadwing Communications, Llc - Ca |
| Prefix 1-415-870 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-871 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-872 | County Alameda | City Oakland | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-873 | County Alameda | City Oakland | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-874 | County Santa Clara | City San Jose | Carrier Matrix Telecom, Llc. Sii Tnci - Ca |
| Prefix 1-415-875 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-876 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-877 | County San Francisco | City San Francisco | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-878 | County Napa | City Napa | Carrier Pacific Bell - Clec |
| Prefix 1-415-879 | County Alameda | City Oakland | Carrier Metro Pcs, Inc. |
| Prefix 1-415-880 | County San Francisco | City San Francisco | Carrier Utility Telecom Group, Llc - Ca |
| Prefix 1-415-881 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-882 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-883 | County Marin | City Novato | Carrier Pacific Bell |
| Prefix 1-415-884 | County Marin | City Novato | Carrier Pacific Bell |
| Prefix 1-415-885 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-886 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-887 | County San Francisco | City San Francisco | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-888 | County San Francisco | City San Francisco | Carrier Comcast Phone Of California, Llc - Ca |
| Prefix 1-415-889 | County Alameda | City Oakland | Carrier Teleport Communications Group - San Francisco |
| Prefix 1-415-890 | County San Francisco | City San Francisco | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-891 | County San Francisco | City San Francisco | Carrier Comcast Phone Of California, Llc - Ca |
| Prefix 1-415-892 | County Marin | City Novato | Carrier Frontier California Inc. |
| Prefix 1-415-893 | County Marin | City Novato | Carrier Frontier California Inc. |
| Prefix 1-415-894 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-895 | County Alameda | City Oakland | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-896 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-897 | County Marin | City Novato | Carrier Frontier California Inc. |
| Prefix 1-415-898 | County Marin | City Novato | Carrier Frontier California Inc. |
| Prefix 1-415-899 | County Marin | City Novato | Carrier Frontier California Inc. |
| Prefix 1-415-900 | County Alameda | City Oakland | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-901 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-902 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-903 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-904 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-905 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-906 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-907 | County San Francisco | City San Francisco | Carrier Usa Mobility Wireless, Inc. |
| Prefix 1-415-908 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-909 | County San Francisco | City San Francisco | Carrier At&t Corp. |
| Prefix 1-415-910 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-912 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-913 | County Alameda | City Hayward | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-415-914 | County Santa Clara | City San Jose | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-915 | County San Francisco | City San Francisco | Carrier Paetec Communications, Inc. - Ca |
| Prefix 1-415-916 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-917 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-918 | County Solano | City Fairfield | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-919 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-920 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-921 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-922 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-923 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-924 | County Marin | City Larkspur | Carrier Pacific Bell |
| Prefix 1-415-925 | County Marin | City Larkspur | Carrier Pacific Bell |
| Prefix 1-415-926 | County Santa Clara | City Santa Clara | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-927 | County Marin | City Larkspur | Carrier Pacific Bell |
| Prefix 1-415-928 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-929 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-930 | County Solano | City Fairfield | Carrier Rclec, Inc. - Ca |
| Prefix 1-415-931 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-932 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-933 | County Alameda | City Oakland | Carrier Pacific Bell |
| Prefix 1-415-934 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-935 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-936 | County San Francisco | City San Francisco | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-937 | County San Francisco | City San Francisco | Carrier U.s. Telepacific Corp. - Ca |
| Prefix 1-415-938 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-939 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-940 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-941 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-942 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-943 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-944 | County San Francisco | City San Francisco | Carrier Broadwing Communications, Llc - Ca |
| Prefix 1-415-945 | County Marin | City Larkspur | Carrier Pacific Bell |
| Prefix 1-415-946 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-947 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-948 | County Alameda | City Oakland | Carrier Sprint Spectrum L.p. |
| Prefix 1-415-949 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-951 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-952 | County San Francisco | City San Francisco | Carrier O1 Communications, Inc. - Ca |
| Prefix 1-415-953 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-954 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-955 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-956 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-957 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-960 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-961 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-962 | County Alameda | City Fremont | Carrier Xo California, Inc. |
| Prefix 1-415-963 | County Alameda | City Hayward | Carrier Mci Worldcom Communications, Inc., Ca |
| Prefix 1-415-964 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-965 | County San Francisco | City San Francisco | Carrier Local Access Services Llc - Ca |
| Prefix 1-415-966 | County Alameda | City Oakland | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-967 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-968 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-969 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-970 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-971 | County Solano | City Fairfield | Carrier Cellco Partnership Dba Verizon Wireless - Ca |
| Prefix 1-415-972 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-973 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-974 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-975 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-976 | County San Francisco | City San Francisco | Carrier North County Communications Corp. - Ca |
| Prefix 1-415-977 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-978 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-979 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-980 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-981 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-982 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-983 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-984 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-985 | County San Francisco | City San Francisco | Carrier Mpower Communications Corp - Ca |
| Prefix 1-415-986 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-987 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-988 | County San Francisco | City San Francisco | Carrier Cf Communications, Llc Dba Telekenex - Ca |
| Prefix 1-415-989 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-990 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-991 | County San Francisco | City San Francisco | Carrier Level 3 Communications, Llc - Ca |
| Prefix 1-415-992 | County San Francisco | City San Francisco | Carrier T-mobile Usa, Inc. |
| Prefix 1-415-993 | County San Francisco | City San Francisco | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-994 | County San Francisco | City San Francisco | Carrier New Cingular Wireless Pcs, Llc |
| Prefix 1-415-995 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-996 | County Alameda | City Oakland | Carrier Bandwidth.com Clec, Llc - Ca |
| Prefix 1-415-997 | County San Francisco | City San Francisco | Carrier Level 3 Telecom Of California, Lp - Ca |
| Prefix 1-415-998 | County San Francisco | City San Francisco | Carrier Pacific Bell |
| Prefix 1-415-999 | County Santa Clara | City Santa Clara | Carrier New Cingular Wireless Pcs, Llc |