| 1-617-200 | | | |
| 1-617-201 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-202 | Worcester | Worcester | Conversent Communications Of Massachusetts, Llc |
| 1-617-203 | Suffolk | Boston | Allegiance Telecom, Inc. - Ma |
| 1-617-204 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-205 | Norfolk | Franklin | Norfolk County Internet, Inc. |
| 1-617-206 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-207 | Middlesex | Chelmsford | Comcast Phone Of Massachusetts, Inc. - Ma |
| 1-617-208 | Middlesex | Cambridge | Xo Massachusetts, Inc. |
| 1-617-209 | Middlesex | Cambridge | Rcn Telecom Services, Inc. - Ma |
| 1-617-210 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-212 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-213 | Suffolk | Boston | Broadwing Communications, Llc - Ma |
| 1-617-214 | Suffolk | Hyde Park | Verizon New England Inc. |
| 1-617-215 | Middlesex | Newtonville | Verizon New England Inc. |
| 1-617-216 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-217 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-218 | Middlesex | Cambridge | Tc Systems, Inc. |
| 1-617-219 | Middlesex | Newtonville | Verizon New England Inc. |
| 1-617-220 | | | |
| 1-617-221 | Suffolk | Boston | Ctc Communications Corp. - Ma |
| 1-617-222 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-223 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-224 | Middlesex | Cambridge | Xo Massachusetts, Inc. |
| 1-617-225 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-226 | Middlesex | Cambridge | Ctc Communications Corp. - Ma |
| 1-617-227 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-228 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-229 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-230 | Bristol | Norton | Omnipoint Miami E License, Llc |
| 1-617-231 | Middlesex | Cambridge | Global Crossing Local Services, Inc.-ma |
| 1-617-232 | | | Verizon New England Inc. |
| 1-617-233 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-234 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-235 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-236 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-237 | Middlesex | Stoneham | Rcn Telecom Services, Inc. - Ma |
| 1-617-238 | Suffolk | Boston | Allegiance Telecom, Inc. - Ma |
| 1-617-239 | Middlesex | Cambridge | At&t Local |
| 1-617-240 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-241 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-242 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-243 | Middlesex | Newtonville | Verizon New England Inc. |
| 1-617-244 | Middlesex | Newtonville | Verizon New England Inc. |
| 1-617-245 | Middlesex | Cambridge | Global Crossing Local Services, Inc.-ma |
| 1-617-246 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-247 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-248 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-249 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-250 | Middlesex | Cambridge | Tc Systems, Inc. |
| 1-617-251 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-252 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-253 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-254 | Suffolk | Brighton | Verizon New England Inc. |
| 1-617-255 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-256 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-257 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-258 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-259 | Bristol | Norton | Omnipoint Miami E License, Llc |
| 1-617-260 | | | |
| 1-617-261 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-262 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-263 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-264 | | | Verizon New England Inc. |
| 1-617-265 | Suffolk | Dorchester | Verizon New England Inc. |
| 1-617-266 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-267 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-268 | Suffolk | South Boston | Verizon New England Inc. |
| 1-617-269 | Suffolk | South Boston | Verizon New England Inc. |
| 1-617-270 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-271 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-272 | Middlesex | Cambridge | Global Crossing Local Services, Inc.-ma |
| 1-617-273 | Middlesex | Cambridge | Broadwing Communications, Llc - Ma |
| 1-617-274 | Suffolk | Boston | Paetec Communications, Inc.- Ma |
| 1-617-275 | Middlesex | Cambridge | Level 3 Communications, Llc - Ma |
| 1-617-276 | Suffolk | West Roxbury | Rcn Telecom Services, Inc. - Ma |
| 1-617-277 | | | Verizon New England Inc. |
| 1-617-278 | | | Verizon New England Inc. |
| 1-617-279 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-280 | Middlesex | Woburn | Nep, Llc |
| 1-617-281 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-282 | Suffolk | Dorchester | Verizon New England Inc. |
| 1-617-283 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-284 | Middlesex | Somerville | Verizon New England Inc. |
| 1-617-285 | Middlesex | North Billerica | Cellco Partnership Dba Verizon Wireless - Ma |
| 1-617-286 | Suffolk | Boston | Ctc Communications Corp. - Ma |
| 1-617-287 | Suffolk | Dorchester | Verizon New England Inc. |
| 1-617-288 | Suffolk | Dorchester | Verizon New England Inc. |
| 1-617-289 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-290 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-291 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-292 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-293 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-294 | Middlesex | Chelmsford | Comcast Phone Of Massachusetts, Inc. - Ma |
| 1-617-295 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-296 | Norfolk | Milton | Verizon New England Inc. |
| 1-617-297 | Middlesex | Cambridge | Global Crossing Local Services, Inc.-ma |
| 1-617-298 | Norfolk | Milton | Verizon New England Inc. |
| 1-617-299 | Suffolk | Boston | Mci Worldcom Communications, Inc. - Ma |
| 1-617-300 | Middlesex | Cambridge | At&t Local |
| 1-617-301 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-302 | Suffolk | Boston | Ymax Communications Corp. - Ma |
| 1-617-303 | Essex | Lawrence | Freedom Ring Communications, Llc |
| 1-617-304 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-305 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-306 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-307 | Worcester | Worcester | Conversent Communications Of Massachusetts, Llc |
| 1-617-308 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-309 | Middlesex | Cambridge | Ctc Communications Corp. - Ma |
| 1-617-310 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-311 | | | |
| 1-617-312 | Suffolk | West Roxbury | Cellco Partnership Dba Verizon Wireless - Ma |
| 1-617-313 | Middlesex | Somerville | Broadview Networks, Inc. - Ma |
| 1-617-314 | Middlesex | Cambridge | Broadwing Communications, Llc - Ma |
| 1-617-315 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-316 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-317 | Norfolk | Franklin | Norfolk County Internet, Inc. |
| 1-617-318 | Worcester | Worcester | Conversent Communications Of Massachusetts, Llc |
| 1-617-319 | Bristol | Norton | Omnipoint Miami E License, Llc |
| 1-617-320 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-321 | Suffolk | Charlestown | Broadview Networks, Inc. - Ma |
| 1-617-322 | Middlesex | Chelmsford | Comcast Phone Of Massachusetts, Inc. - Ma |
| 1-617-323 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-324 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-325 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-326 | Middlesex | Cambridge | Xo Massachusetts, Inc. |
| 1-617-327 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-328 | Norfolk | Quincy | Verizon New England Inc. |
| 1-617-329 | Middlesex | Stoneham | Rcn Telecom Services, Inc. - Ma |
| 1-617-330 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-331 | Bristol | Norton | Omnipoint Miami E License, Llc |
| 1-617-332 | Middlesex | Newtonville | Verizon New England Inc. |
| 1-617-333 | Suffolk | Hyde Park | Verizon New England Inc. |
| 1-617-334 | Middlesex | Woburn | Rcn Telecom Services, Inc. - Ma |
| 1-617-335 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-336 | Suffolk | Boston | Paetec Communications, Inc.- Ma |
| 1-617-337 | Middlesex | Stoneham | Rcn Telecom Services, Inc. - Ma |
| 1-617-338 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-339 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-340 | Middlesex | Cambridge | Ctc Communications Corp. - Ma |
| 1-617-341 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-342 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-343 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-344 | Suffolk | Boston | Xo Massachusetts, Inc. |
| 1-617-345 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-346 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-347 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-348 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-349 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-350 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-351 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-352 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-353 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-354 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-355 | | | Verizon New England Inc. |
| 1-617-356 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-357 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-358 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-359 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-360 | Suffolk | Hyde Park | Verizon New England Inc. |
| 1-617-361 | Suffolk | Hyde Park | Verizon New England Inc. |
| 1-617-362 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-363 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-364 | Suffolk | Hyde Park | Verizon New England Inc. |
| 1-617-365 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-366 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-367 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-368 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-369 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-370 | Middlesex | Cambridge | Xo Massachusetts, Inc. |
| 1-617-371 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-372 | Bristol | Norton | Verizon New England Inc. |
| 1-617-373 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-374 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-375 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-376 | Norfolk | Quincy | Verizon New England Inc. |
| 1-617-377 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-378 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-379 | Middlesex | Cambridge | Rcn Telecom Services, Inc. - Ma |
| 1-617-380 | Middlesex | Cambridge | Global Crossing Local Services, Inc.-ma |
| 1-617-381 | Middlesex | Malden | Verizon New England Inc. |
| 1-617-382 | Middlesex | Malden | Verizon New England Inc. |
| 1-617-383 | Worcester | Worcester | Conversent Communications Of Massachusetts, Llc |
| 1-617-384 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-385 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-386 | Middlesex | Cambridge | At&t Local |
| 1-617-387 | Middlesex | Malden | Verizon New England Inc. |
| 1-617-388 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-389 | Middlesex | Malden | Verizon New England Inc. |
| 1-617-390 | Suffolk | Boston | Mcimetro Access Transmission Services Llc |
| 1-617-391 | Suffolk | Boston | Ctc Communications Corp. - Ma |
| 1-617-392 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-393 | Middlesex | Stoneham | Rcn Telecom Services, Inc. - Ma |
| 1-617-394 | Middlesex | Malden | Verizon New England Inc. |
| 1-617-395 | Middlesex | Cambridge | Broadwing Communications, Llc - Ma |
| 1-617-396 | Bristol | Norton | Tc Systems, Inc. |
| 1-617-397 | Middlesex | Cambridge | At&t Local |
| 1-617-398 | Middlesex | Cambridge | At&t Local |
| 1-617-399 | Suffolk | Boston | Allegiance Telecom, Inc. - Ma |
| 1-617-400 | Norfolk | Franklin | Norfolk County Internet, Inc. |
| 1-617-401 | Middlesex | Cambridge | Level 3 Communications, Llc - Ma |
| 1-617-402 | Middlesex | Somerville | Local Access Llc - Ma |
| 1-617-403 | Suffolk | Brighton | Verizon New England Inc. |
| 1-617-404 | | | |
| 1-617-405 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-406 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-407 | Bristol | Norton | Omnipoint Miami E License, Llc |
| 1-617-408 | Suffolk | Hyde Park | Verizon New England Inc. |
| 1-617-409 | Middlesex | Cambridge | Ctc Communications Corp. - Ma |
| 1-617-410 | Middlesex | Cambridge | Ctc Communications Corp. - Ma |
| 1-617-412 | Bristol | Norton | Omnipoint Miami E License, Llc |
| 1-617-413 | Suffolk | West Roxbury | Cellco Partnership Dba Verizon Wireless - Ma |
| 1-617-414 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-415 | Bristol | Norton | Mcimetro Access Transmission Services Llc |
| 1-617-416 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-417 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-418 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-419 | Suffolk | Boston | Bandwidth.com Clec, Llc - Ma |
| 1-617-420 | Suffolk | Boston | Mcimetro Access Transmission Services Llc |
| 1-617-421 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-422 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-423 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-424 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-425 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-426 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-427 | Suffolk | Roxbury | Verizon New England Inc. |
| 1-617-428 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-429 | Suffolk | West Roxbury | Cellco Partnership Dba Verizon Wireless - Ma |
| 1-617-430 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-431 | Middlesex | Cambridge | Tc Systems, Inc. |
| 1-617-432 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-433 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-434 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-435 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-436 | Suffolk | Dorchester | Verizon New England Inc. |
| 1-617-437 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-438 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-439 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-440 | Middlesex | Cambridge | Conversent Communications Of Massachusetts, Llc |
| 1-617-441 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-442 | Suffolk | Roxbury | Verizon New England Inc. |
| 1-617-443 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-444 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-445 | Suffolk | Roxbury | Verizon New England Inc. |
| 1-617-446 | Suffolk | Boston | Allegiance Telecom, Inc. - Ma |
| 1-617-447 | Suffolk | West Roxbury | Cellco Partnership Dba Verizon Wireless - Ma |
| 1-617-448 | Suffolk | West Roxbury | Cellco Partnership Dba Verizon Wireless - Ma |
| 1-617-449 | Suffolk | Boston | Mcimetro Access Transmission Services Llc |
| 1-617-450 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-451 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-452 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-453 | Suffolk | Boston | Bandwidth.com Clec, Llc - Ma |
| 1-617-454 | Middlesex | Cambridge | Tc Systems, Inc. |
| 1-617-455 | Suffolk | West Roxbury | Conversent Communications Of Massachusetts, Llc |
| 1-617-456 | Suffolk | Charlestown | Broadview Networks, Inc. - Ma |
| 1-617-457 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-458 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-459 | Middlesex | Cambridge | Sprint Spectrum L.p. |
| 1-617-460 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-461 | Middlesex | Woburn | Sprint Spectrum L.p. |
| 1-617-462 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-463 | Suffolk | South Boston | Verizon New England Inc. |
| 1-617-464 | Suffolk | South Boston | Verizon New England Inc. |
| 1-617-465 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-466 | Middlesex | Chelmsford | Comcast Phone Of Massachusetts, Inc. - Ma |
| 1-617-467 | Worcester | Worcester | Conversent Communications Of Massachusetts, Llc |
| 1-617-468 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-469 | Suffolk | West Roxbury | Verizon New England Inc. |
| 1-617-470 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-471 | Norfolk | Quincy | Verizon New England Inc. |
| 1-617-472 | Norfolk | Quincy | Verizon New England Inc. |
| 1-617-473 | Middlesex | Newtonville | Verizon New England Inc. |
| 1-617-474 | Suffolk | Dorchester | Verizon New England Inc. |
| 1-617-475 | Middlesex | Cambridge | Mci Worldcom Communications, Inc. - Ma |
| 1-617-476 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-477 | Middlesex | Cambridge | Xo Massachusetts, Inc. |
| 1-617-478 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-479 | Norfolk | Quincy | Verizon New England Inc. |
| 1-617-480 | Middlesex | Cambridge | New Cingular Wireless Pcs, Llc - Dc |
| 1-617-481 | Middlesex | Chelmsford | Comcast Phone Of Massachusetts, Inc. - Ma |
| 1-617-482 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-483 | Norfolk | Quincy | Verizon New England Inc. |
| 1-617-484 | Middlesex | Belmont | Verizon New England Inc. |
| 1-617-485 | Suffolk | West Roxbury | At&t Local |
| 1-617-486 | Middlesex | Belmont | Verizon New England Inc. |
| 1-617-487 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-488 | Suffolk | Boston | Tc Systems, Inc. |
| 1-617-489 | Middlesex | Belmont | Verizon New England Inc. |
| 1-617-490 | Suffolk | Boston | Verizon New England Inc. |
| 1-617-491 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-492 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-493 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-494 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-495 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-496 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-497 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-498 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-499 | Middlesex | Cambridge | Verizon New England Inc. |
| 1-617-500 | Middlesex | Cambridge | Level 3 Communications, Llc - Ma |
| 1-617-501 | Middlesex | Woburn | Sprint Spectrum L.p. |
