| Prefix 1-617-201 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-202 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-203 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-204 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-205 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-206 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-207 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-208 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-209 | County Middlesex | City Cambridge | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-210 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-212 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-213 | County Suffolk | City Boston | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-214 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-215 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-216 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-217 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-218 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-219 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-221 | County Suffolk | City Boston | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-222 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-223 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-224 | County Middlesex | City Woburn | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-225 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-226 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-227 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-228 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-229 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-230 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-231 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-232 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-233 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-234 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-235 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-236 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-237 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-238 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-239 | County Middlesex | City Cambridge | Carrier At&t Local |
| Prefix 1-617-240 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-241 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-242 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-243 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-244 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-245 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-246 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-247 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-248 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-249 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-250 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-251 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-252 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-253 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-254 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-255 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-256 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-257 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-258 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-259 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-261 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-262 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-263 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-264 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-265 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-266 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-267 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-268 | County Suffolk | City South Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-269 | County Suffolk | City South Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-270 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-271 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-272 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-273 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-274 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-275 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-276 | County Suffolk | City West Roxbury | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-277 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-278 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-279 | County Middlesex | City Woburn | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-280 | County Middlesex | City Woburn | Carrier Nep, Llc |
| Prefix 1-617-281 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-282 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-283 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-284 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-285 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-286 | County Suffolk | City Boston | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-287 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-288 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-289 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-290 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-291 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-292 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-293 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-294 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-295 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-296 | County Norfolk | City Milton | Carrier Verizon New England Inc. |
| Prefix 1-617-297 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-298 | County Norfolk | City Milton | Carrier Verizon New England Inc. |
| Prefix 1-617-299 | County Suffolk | City Boston | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-300 | County Middlesex | City Cambridge | Carrier At&t Local |
| Prefix 1-617-301 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-302 | County Suffolk | City Boston | Carrier Ymax Communications Corp. - Ma |
| Prefix 1-617-303 | County Essex | City Lawrence | Carrier Freedom Ring Communications, Llc |
| Prefix 1-617-304 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-305 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-306 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-307 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-308 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-309 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-310 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-312 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-313 | County Middlesex | City Somerville | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-314 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-315 | County Middlesex | City Woburn | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-316 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-317 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-318 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-319 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-320 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-321 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-322 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-323 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-324 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-325 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-326 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-327 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-328 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-329 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-330 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-331 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-332 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-333 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-334 | County Middlesex | City Woburn | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-335 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-336 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-337 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-338 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-339 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-340 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-341 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-342 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-343 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-344 | County Suffolk | City Boston | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-345 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-346 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-347 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-348 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-349 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-350 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-351 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-352 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-353 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-354 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-355 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-356 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-357 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-358 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-359 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-360 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-361 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-362 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-363 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-364 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-365 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-366 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-367 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-368 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-369 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-370 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-371 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-372 | County Bristol | City Norton | Carrier Verizon New England Inc. |
| Prefix 1-617-373 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-374 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-375 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-376 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-377 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-378 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-379 | County Middlesex | City Cambridge | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-380 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-381 | County Middlesex | City Malden | Carrier Verizon New England Inc. |
| Prefix 1-617-382 | County Middlesex | City Malden | Carrier Verizon New England Inc. |
| Prefix 1-617-383 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-384 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-385 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-386 | County Middlesex | City Cambridge | Carrier At&t Local |
| Prefix 1-617-387 | County Middlesex | City Malden | Carrier Verizon New England Inc. |
| Prefix 1-617-388 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-389 | County Middlesex | City Malden | Carrier Verizon New England Inc. |
| Prefix 1-617-390 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-391 | County Suffolk | City Boston | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-392 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-393 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-394 | County Middlesex | City Malden | Carrier Verizon New England Inc. |
| Prefix 1-617-395 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-396 | County Bristol | City Norton | Carrier Tc Systems, Inc. |
| Prefix 1-617-397 | County Middlesex | City Cambridge | Carrier At&t Local |
| Prefix 1-617-398 | County Middlesex | City Cambridge | Carrier At&t Local |
| Prefix 1-617-399 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-400 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-401 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-402 | County Middlesex | City Somerville | Carrier Local Access Llc - Ma |
| Prefix 1-617-403 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-405 | County Suffolk | City West Roxbury | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-406 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-407 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-408 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-409 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-410 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-412 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-413 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-414 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-415 | County Bristol | City Norton | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-416 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-417 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-418 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-419 | County Suffolk | City Boston | Carrier Bandwidth.com Clec, Llc - Ma |
| Prefix 1-617-420 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-421 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-422 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-423 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-424 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-425 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-426 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-427 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-428 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-429 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-430 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-431 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-432 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-433 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-434 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-435 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-436 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-437 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-438 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-439 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-440 | County Middlesex | City Cambridge | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-441 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-442 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-443 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-444 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-445 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-446 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-447 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-448 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-449 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-450 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-451 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-452 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-453 | County Suffolk | City Boston | Carrier Bandwidth.com Clec, Llc - Ma |
| Prefix 1-617-454 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-455 | County Suffolk | City West Roxbury | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-456 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-457 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-458 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-459 | County Middlesex | City Cambridge | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-460 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-461 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-462 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-463 | County Suffolk | City South Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-464 | County Suffolk | City South Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-465 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-466 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-467 | County Suffolk | City West Roxbury | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-468 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-469 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-470 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-471 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-472 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-473 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-474 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-475 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-476 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-477 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-478 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-479 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-480 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-481 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-482 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-483 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-484 | County Middlesex | City Belmont | Carrier Verizon New England Inc. |
| Prefix 1-617-485 | County Suffolk | City West Roxbury | Carrier At&t Local |
| Prefix 1-617-486 | County Middlesex | City Belmont | Carrier Verizon New England Inc. |
| Prefix 1-617-487 | County Bristol | City Norton | Carrier Tc Systems, Inc. |
| Prefix 1-617-488 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-489 | County Middlesex | City Belmont | Carrier Verizon New England Inc. |
| Prefix 1-617-490 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-491 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-492 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-493 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-494 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-495 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-496 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-497 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-498 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-499 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-500 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-501 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-502 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-503 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-504 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-505 | County Bristol | City Norton | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-506 | County Middlesex | City Chelmsford | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-507 | County Suffolk | City Boston | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-509 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-510 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-512 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-513 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-514 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-515 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-516 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-517 | County Suffolk | City Boston | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-518 | County | City | Carrier Nextwave Telecom, Inc Dba Nextwave Wireless |
| Prefix 1-617-519 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-520 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-521 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-522 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-523 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-524 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-525 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-526 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-527 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-528 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-529 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-530 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-531 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-532 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-533 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-534 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-535 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-536 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-537 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-538 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-539 | County Suffolk | City Winthrop | Carrier Verizon New England Inc. |
| Prefix 1-617-540 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-541 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-542 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-543 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-544 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-545 | County Suffolk | City Boston | Carrier At&t Local |
| Prefix 1-617-546 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-547 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-548 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-549 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-551 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-552 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-553 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-555 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-556 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-557 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-558 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-559 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-560 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-561 | County Suffolk | City East Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-562 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-563 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-564 | County Suffolk | City West Roxbury | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-565 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-566 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-567 | County Suffolk | City East Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-568 | County Suffolk | City East Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-569 | County Suffolk | City East Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-570 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-571 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-572 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-573 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-574 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-575 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-576 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-577 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-578 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-579 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-580 | County Bristol | City Norton | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-581 | County Suffolk | City West Roxbury | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-582 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-583 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-584 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-585 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-586 | County Suffolk | City Boston | Carrier Local Access Llc - Ma |
| Prefix 1-617-587 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-588 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-589 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-590 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-591 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-592 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-593 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-594 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-595 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-596 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-597 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-598 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-599 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-600 | County Middlesex | City Cambridge | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-601 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-602 | County Bristol | City Norton | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-603 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-604 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-605 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-606 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-607 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-608 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-609 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-610 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-612 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-613 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-614 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-615 | County Middlesex | City Cambridge | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-616 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-618 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-619 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-620 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-621 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-622 | County Suffolk | City Boston | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-623 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-624 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-625 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-626 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-627 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-628 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-629 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-630 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-631 | County Suffolk | City West Roxbury | Carrier At&t Local |
| Prefix 1-617-632 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-633 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-634 | County Suffolk | City Chelsea | Carrier Verizon New England Inc. |
| Prefix 1-617-635 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-636 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-637 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-638 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-639 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-640 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-641 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-642 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-643 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-644 | County Suffolk | City Boston | Carrier Bandwidth.com Clec, Llc - Ma |
| Prefix 1-617-645 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-646 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-647 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-648 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-649 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-650 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-651 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-652 | County Bristol | City Norton | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-653 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-654 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-655 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-656 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-657 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-658 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-659 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-660 | County Suffolk | City Chelsea | Carrier Verizon New England Inc. |
| Prefix 1-617-661 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-662 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-663 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-664 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-665 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-666 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-667 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-668 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-669 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-670 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-671 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-672 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-673 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-674 | County Middlesex | City Cambridge | Carrier Dsci, Llc |
| Prefix 1-617-675 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-676 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-677 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-678 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-679 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-680 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-681 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-682 | County Bristol | City Norton | Carrier Ymax Communications Corp. - Ma |
| Prefix 1-617-683 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-684 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-686 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-687 | County Suffolk | City Boston | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-688 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-689 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-690 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-691 | County Suffolk | City West Roxbury | Carrier Tc Systems, Inc. |
| Prefix 1-617-692 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-693 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-694 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-695 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-696 | County Norfolk | City Milton | Carrier Verizon New England Inc. |
| Prefix 1-617-697 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-698 | County Norfolk | City Milton | Carrier Verizon New England Inc. |
| Prefix 1-617-699 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-701 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-702 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-703 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-704 | County Middlesex | City Woburn | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-705 | County Suffolk | City Hyde Park | Carrier Verizon New England Inc. |
| Prefix 1-617-706 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-707 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-708 | County Bristol | City Norton | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-710 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-712 | County Bristol | City Norton | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-713 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-714 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-715 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-716 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-717 | County Middlesex | City Cambridge | Carrier At&t Local |
| Prefix 1-617-718 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-719 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-720 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-721 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-722 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-723 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-724 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-725 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-726 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-727 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-728 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-729 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-730 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-731 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-732 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-733 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-734 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-735 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-737 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-738 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-739 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-740 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-741 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-742 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-743 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-744 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-745 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-746 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-747 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-748 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-749 | County Bristol | City Norton | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-750 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-751 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-752 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-753 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-754 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-755 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-756 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-757 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-758 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-759 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-760 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-761 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-762 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-763 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-764 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-765 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-766 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-767 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-768 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-769 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-770 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-771 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-772 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-773 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-774 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-775 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-776 | County Middlesex | City Somerville | Carrier Verizon New England Inc. |
| Prefix 1-617-777 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-778 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-779 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-780 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-782 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-783 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-784 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-785 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-786 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-787 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-788 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-789 | County Suffolk | City Brighton | Carrier Verizon New England Inc. |
| Prefix 1-617-790 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-791 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-792 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-793 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-794 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-795 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-796 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-797 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-798 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-799 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-800 | County Middlesex | City Cambridge | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-801 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-802 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-803 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-804 | County Suffolk | City Boston | Carrier Bandwidth.com Clec, Llc - Ma |
| Prefix 1-617-806 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-807 | County Suffolk | City Boston | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-812 | County Suffolk | City Boston | Carrier Global Naps, Inc.-ma |
| Prefix 1-617-814 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-816 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-817 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-818 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-819 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-820 | County Bristol | City Norton | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-821 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-822 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-823 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-824 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-825 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-826 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-827 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-828 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-829 | County Middlesex | City Cambridge | Carrier Local Access Llc - Ma |
| Prefix 1-617-830 | County Middlesex | City Cambridge | Carrier Dsci, Llc |
| Prefix 1-617-831 | County Suffolk | City West Roxbury | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-832 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-833 | County Suffolk | City West Roxbury | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-834 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-835 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-836 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-837 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-838 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-839 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-840 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-841 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-842 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-843 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-844 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-845 | County Suffolk | City Boston | Carrier Allegiance Telecom, Inc. - Ma |
| Prefix 1-617-846 | County Suffolk | City Winthrop | Carrier Verizon New England Inc. |
| Prefix 1-617-847 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-848 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-849 | County Bristol | City Norton | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-850 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-851 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-852 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-853 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-854 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-855 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-856 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-858 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-859 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-860 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-861 | County Middlesex | City Somerville | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-862 | County Suffolk | City West Roxbury | Carrier Local Access Llc - Ma |
| Prefix 1-617-863 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-864 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-865 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-866 | County Suffolk | City West Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-867 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-868 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-869 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-870 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-871 | County Middlesex | City Cambridge | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-617-872 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-873 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-874 | County Suffolk | City West Roxbury | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-875 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-876 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-877 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-878 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-879 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-880 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-881 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-882 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-883 | County Middlesex | City Belmont | Carrier Verizon New England Inc. |
| Prefix 1-617-884 | County Suffolk | City Chelsea | Carrier Verizon New England Inc. |
| Prefix 1-617-885 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-886 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-887 | County Suffolk | City Chelsea | Carrier Verizon New England Inc. |
| Prefix 1-617-888 | County Bristol | City Norton | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-889 | County Suffolk | City Chelsea | Carrier Verizon New England Inc. |
| Prefix 1-617-890 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-891 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-892 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-893 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-894 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-895 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-896 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-897 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-898 | County Norfolk | City Milton | Carrier Verizon New England Inc. |
| Prefix 1-617-899 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-901 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-902 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-903 | County Middlesex | City Cambridge | Carrier Ctc Communications Corp. - Ma |
| Prefix 1-617-904 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-905 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-906 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-907 | County Norfolk | City Franklin | Carrier Norfolk County Internet, Inc. |
| Prefix 1-617-908 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-909 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-910 | County Suffolk | City West Roxbury | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-912 | County Suffolk | City Boston | Carrier Tc Systems, Inc. |
| Prefix 1-617-913 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-914 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-915 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-916 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-917 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-918 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-919 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-921 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-922 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-923 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-924 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-925 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-926 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-927 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-928 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-929 | County Suffolk | City Dorchester | Carrier Verizon New England Inc. |
| Prefix 1-617-930 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-931 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-932 | County Middlesex | City Cambridge | Carrier Tc Systems, Inc. |
| Prefix 1-617-933 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-934 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-935 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-936 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-937 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-938 | County Middlesex | City Woburn | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-939 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-941 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-942 | County Middlesex | City Chelmsford | Carrier Tc Systems, Inc. |
| Prefix 1-617-943 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-944 | County Middlesex | City Cambridge | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-945 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-617-946 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-947 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-617-948 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-949 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-951 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-952 | County Bristol | City Norton | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-953 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-954 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-955 | County Bristol | City Norton | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-956 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-957 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-958 | County Middlesex | City Cambridge | Carrier Global Crossing Local Services, Inc.-ma |
| Prefix 1-617-959 | County Bristol | City Norton | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-617-960 | County Suffolk | City Boston | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-961 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-962 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-963 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-964 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-965 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-966 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-967 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-968 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-969 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-617-970 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-971 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-972 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-973 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-974 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-617-975 | County | City | Carrier Verizon New England Inc. |
| Prefix 1-617-977 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-979 | County Suffolk | City Boston | Carrier Paetec Communications, Inc.- Ma |
| Prefix 1-617-980 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-617-981 | County Suffolk | City West Roxbury | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-982 | County Bristol | City Norton | Carrier Local Access Llc - Ma |
| Prefix 1-617-983 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-984 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-985 | County Norfolk | City Quincy | Carrier Verizon New England Inc. |
| Prefix 1-617-986 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-617-987 | County Middlesex | City Stoneham | Carrier Rcn Telecom Services, Inc. - Ma |
| Prefix 1-617-988 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-989 | County Suffolk | City Roxbury | Carrier Verizon New England Inc. |
| Prefix 1-617-990 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-991 | County Suffolk | City West Roxbury | Carrier Mcimetro Access Transmission Services Llc |
| Prefix 1-617-992 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-617-993 | County Middlesex | City Belmont | Carrier Verizon New England Inc. |
| Prefix 1-617-994 | County Suffolk | City Boston | Carrier Verizon New England Inc. |
| Prefix 1-617-995 | County Middlesex | City Cambridge | Carrier Xo Massachusetts, Inc. |
| Prefix 1-617-996 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-617-997 | County Suffolk | City West Roxbury | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-617-998 | County Middlesex | City Cambridge | Carrier Verizon New England Inc. |
| Prefix 1-617-999 | County Suffolk | City West Roxbury | Carrier At&t Local |