Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 508 prefixes
749 of the 786 possible NXX blocks are assigned in area code 508 (95.3% of capacity), spread across 94 rate centers and 22 holders. The largest holders are VERIZON NEW ENGLAND INC. (306 blocks, 40.9%), PAETEC ITEL, LLC (67 blocks, 8.9%), NEW CINGULAR WIRELESS PCS, LLC - DC (63 blocks, 8.4%). Grouped by brand, Verizon accounts for 397 blocks; brand-attributable holders cover 96% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-02-14 to 2026-09-04, with 16 blocks handed out in 2001 alone. 439 blocks (59%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 1 assigned block (724) is not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 45 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
749 assigned blocks of 786
94 rate centers
22 holders of record
59% in thousands-block pooling
Largest holders in 508
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| VERIZON NEW ENGLAND INC. | Verizon | 306 | 40.9% |
| PAETEC ITEL, LLC | Windstream | 67 | 8.9% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | AT&T | 63 | 8.4% |
| LEVEL 3 COMMUNICATIONS, LLC - MA | Lumen | 60 | 8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 47 | 6.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | Verizon | 44 | 5.9% |
| TC SYSTEMS, INC. | AT&T | 39 | 5.2% |
| OMNIPOINT MIAMI E LICENSE, LLC | T-Mobile | 23 | 3.1% |
| COMCAST IP PHONE, LLC | Comcast | 21 | 2.8% |
| NORFOLK COUNTY INTERNET, INC. | – | 18 | 2.4% |
| METROPCS, INC. | T-Mobile | 17 | 2.3% |
| BANDWIDTH.COM CLEC, LLC - MA | Bandwidth | 12 | 1.6% |
Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.
Rate centers with their own page
Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.
WORCESTER 75FRAMINGHAM 67BROCKTON 37NEWBEDFORD 32FALL RIVER 31MARLBORO 27NATICK 26TAUNTON 19WESTBORO 19HYANNIS 18FRANKLIN 16HOPKINTON 15ATTLEBORO 14MILFORD 14WALPOLE 14AUBURN 12FALMOUTH 11FOXBORO 10EASTON 10PLYMOUTH 10BRIDGEWTR 10MANSFIELD 10NANTUCKET 9NORTHBORO 9OSTERVILLE 9CATAUMET 9DENNIS 8BARNSTABLE 8ROCHESTER 8WEBSTER 7VINEYRDHVN 7ORLEANS 6NO ATTLEBO 6EBRIDGEWTR 6SHREWSBURY 6WELLFLEET 5CHATHAM 5CHARLTON 5WAREHAM 5HOLLISTON 5LAWRENCE 5DOVER 5WHITINSVL 4SEEKONK 4MILLBURY 4NORTON 4MARION 4SOUTHGATE 4OXFORD 4HOLDEN 3MEDFIELD 3MEDWAY 3WAYLAND 3UXBRIDGE 3GRAFTON 3STURBRIDGE 3PROVINCETN 3BILLERICA 3HARWICH 3UPTON 3
All 749 assigned blocks
One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.
| Prefix | Holder of record | Rate center | Assigned | Pooled | In service |
|---|---|---|---|---|---|
| 508-202 | Lumen | FRAMINGHAM | – | yes | yes |
| 508-203 | Lumen | FOXBORO | 2001-04-11 | yes | yes |
| 508-204 | COMMIO, LLC | NEWBEDFORD | 2022-05-10 | yes | yes |
| 508-205 | Windstream | EASTON | – | yes | yes |
| 508-206 | Verizon | NATICK | 2018-02-15 | yes | yes |
| 508-207 | Verizon | NEWBEDFORD | 2001-10-11 | yes | yes |
| 508-208 | Verizon | BROCKTON | – | – | yes |
| 508-209 | Verizon | PLYMOUTH | – | yes | yes |
| 508-210 | Lumen | HOLDEN | – | yes | yes |
| 508-212 | AT&T | ATTLEBORO | – | – | yes |
| 508-213 | AT&T | WEBSTER | – | yes | yes |
| 508-214 | Lumen | WELLFLEET | – | yes | yes |
| 508-215 | AT&T | FRAMINGHAM | – | yes | yes |
| 508-216 | AT&T | FOXBORO | – | yes | yes |
| 508-217 | AT&T | BRIDGEWTR | – | yes | yes |
| 508-218 | NORFOLK COUNTY INTERNET, INC. | NATICK | – | – | yes |
| 508-219 | Lumen | EASTON | – | yes | yes |
| 508-221 | Verizon | NANTUCKET | – | – | yes |
| 508-222 | Verizon | ATTLEBORO | – | – | yes |
| 508-223 | Verizon | ATTLEBORO | – | yes | yes |
| 508-224 | Verizon | PLYMOUTH | – | – | yes |
| 508-225 | AT&T | HYANNIS | 2023-08-02 | yes | yes |
| 508-226 | Verizon | ATTLEBORO | – | – | yes |
| 508-228 | Verizon | NANTUCKET | – | – | yes |
| 508-229 | Verizon | MARLBORO | – | – | yes |
| 508-230 | Verizon | EASTON | – | – | yes |
| 508-231 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-232 | T-Mobile | BROCKTON | – | yes | yes |
| 508-233 | Verizon | NATICK | – | yes | yes |
| 508-234 | Verizon | WHITINSVL | – | – | yes |
| 508-235 | Verizon | FALL RIVER | – | – | yes |
| 508-236 | Verizon | ATTLEBORO | – | – | yes |
| 508-237 | Verizon | ORLEANS | – | – | yes |
| 508-238 | Verizon | EASTON | – | – | yes |
| 508-239 | AT&T | FRAMINGHAM | 2018-08-14 | yes | yes |
| 508-240 | Verizon | ORLEANS | – | yes | yes |
| 508-241 | AT&T | CHATHAM | – | – | yes |
| 508-242 | Verizon | MEDFIELD | – | yes | yes |
| 508-243 | Verizon | ATTLEBORO | – | – | yes |
| 508-244 | AT&T | MILFORD | – | yes | yes |
| 508-245 | Verizon | BRIDGEWTR | – | – | yes |
| 508-246 | AT&T | ORLEANS | – | – | yes |
| 508-247 | Verizon | ORLEANS | – | yes | yes |
| 508-248 | Verizon | CHARLTON | – | – | yes |
| 508-249 | Verizon | HOPKINTON | – | – | yes |
| 508-250 | T-Mobile | FRAMINGHAM | 2001-10-11 | yes | yes |
| 508-251 | Comcast | MARLBORO | – | yes | yes |
| 508-252 | Verizon | REHOBOTH | – | yes | yes |
| 508-253 | Verizon | FRAMINGHAM | – | – | yes |
| 508-254 | Verizon | MEDWAY | – | – | yes |
| 508-255 | Verizon | ORLEANS | – | – | yes |
| 508-256 | Verizon | BROCKTON | – | yes | yes |
| 508-257 | Verizon | SIASCONSET | – | yes | yes |
| 508-258 | Windstream | DENNIS | – | yes | yes |
| 508-259 | Verizon | HOPKINTON | – | – | yes |
| 508-260 | T-Mobile | BARNSTABLE | 2025-04-01 | yes | yes |
| 508-261 | Verizon | MANSFIELD | – | yes | yes |
| 508-262 | Charter | SEEKONK | – | yes | yes |
| 508-263 | Verizon | MARLBORO | 2001-03-06 | yes | yes |
| 508-264 | AT&T | NEWBEDFORD | – | – | yes |
| 508-265 | AT&T | ANDOVER | – | – | yes |
| 508-266 | Verizon | WHITINSVL | – | yes | yes |
| 508-267 | Verizon | HOLDEN | – | yes | yes |
| 508-268 | NORFOLK COUNTY INTERNET, INC. | MILFORD | – | – | yes |
| 508-269 | Verizon | EASTON | – | – | yes |
| 508-270 | Verizon | FRAMINGHAM | – | – | yes |
| 508-271 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-272 | Verizon | EASTON | – | – | yes |
| 508-273 | Verizon | WAREHAM | – | yes | yes |
| 508-274 | Verizon | FALMOUTH | – | – | yes |
| 508-275 | Lumen | HOLLISTON | – | yes | yes |
| 508-276 | Comcast | WAYLAND | – | yes | yes |
| 508-277 | Verizon | MILLBURY | – | – | yes |
| 508-278 | Verizon | UXBRIDGE | – | yes | yes |
| 508-279 | Verizon | BRIDGEWTR | – | yes | yes |
| 508-280 | AT&T | HYANNIS | – | – | yes |
| 508-281 | Windstream | MARLBORO | – | yes | yes |
| 508-282 | RCN TELECOM SERVICES, INC. - MA | MILFORD | – | yes | yes |
| 508-283 | Lumen | FRAMINGHAM | – | yes | yes |
| 508-284 | AT&T | GLOUCESTER | – | – | yes |
| 508-285 | Verizon | NORTON | – | – | yes |
| 508-286 | Verizon | NORTON | – | yes | yes |
| 508-287 | T-Mobile | ROCHESTER | – | – | yes |
| 508-288 | Verizon | ASSONET | – | – | yes |
| 508-289 | Verizon | FALMOUTH | – | yes | yes |
| 508-290 | Bandwidth | NORTHBORO | 2021-11-09 | yes | yes |
| 508-291 | Verizon | WAREHAM | – | – | yes |
| 508-292 | T-Mobile | OSTERVILLE | – | – | yes |
| 508-293 | AT&T | HOPKINTON | – | yes | yes |
| 508-294 | T-Mobile | HOPKINTON | – | yes | yes |
| 508-295 | Verizon | WAREHAM | – | – | yes |
| 508-296 | Windstream | CATAUMET | – | yes | yes |
| 508-297 | Comcast | EASTON | – | yes | yes |
| 508-298 | Windstream | FRANKLIN | – | yes | yes |
| 508-299 | Verizon | FALMOUTH | – | yes | yes |
| 508-300 | Verizon | FALL RIVER | – | yes | yes |
| 508-301 | Bandwidth | TAUNTON | – | yes | yes |
| 508-302 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-303 | Verizon | MARLBORO | – | – | yes |
| 508-304 | T-Mobile | WORCESTER | – | yes | yes |
| 508-305 | AT&T | MARLBORO | – | yes | yes |
| 508-306 | Lumen | HOLLISTON | – | yes | yes |
| 508-307 | American Messaging | TAUNTON | – | – | yes |
| 508-308 | AT&T | FRAMINGHAM | 2002-07-08 | yes | yes |
| 508-309 | AT&T | FRAMINGHAM | – | yes | yes |
| 508-310 | Verizon | NATICK | – | yes | yes |
| 508-312 | Verizon | FRAMINGHAM | – | – | yes |
| 508-313 | Lumen | BROCKTON | – | yes | yes |
| 508-314 | AT&T | NATICK | – | – | yes |
| 508-315 | RCN TELECOM SERVICES, INC. - MA | NATICK | – | yes | yes |
| 508-316 | Comcast | NO ATTLEBO | – | yes | yes |
| 508-317 | AT&T | WAREHAM | – | – | yes |
| 508-318 | Verizon | NATICK | – | yes | yes |
| 508-319 | Windstream | NATICK | – | yes | yes |
| 508-320 | Verizon | GRAFTON | – | – | yes |
| 508-321 | Comcast | MEDWAY | – | yes | yes |
| 508-322 | AT&T | WAREHAM | 2005-03-25 | yes | yes |
| 508-323 | Verizon | FRAMINGHAM | – | – | yes |
| 508-324 | Verizon | FALL RIVER | – | yes | yes |
| 508-325 | Verizon | NANTUCKET | – | yes | yes |
| 508-326 | T-Mobile | BROCKTON | – | yes | yes |
| 508-327 | American Messaging | AUBURN | – | – | yes |
| 508-328 | T-Mobile | HOPKINTON | – | yes | yes |
| 508-329 | Lumen | WESTBORO | – | yes | yes |
| 508-330 | Verizon | WESTBORO | – | – | yes |
| 508-331 | AT&T | FITCHBURG | – | – | yes |
| 508-332 | Lumen | NANTUCKET | – | yes | yes |
| 508-333 | T-Mobile | NATICK | – | – | yes |
| 508-334 | Verizon | WORCESTER | – | – | yes |
| 508-335 | AT&T | WORCESTER | – | – | yes |
| 508-336 | Verizon | SEEKONK | – | yes | yes |
| 508-337 | Verizon | MANSFIELD | – | – | yes |
| 508-338 | Lumen | VINEYRDHVN | – | yes | yes |
| 508-339 | Verizon | MANSFIELD | – | – | yes |
| 508-340 | Lumen | WORCESTER | 2002-02-27 | yes | yes |
| 508-341 | Verizon | E DOUGLAS | – | – | yes |
| 508-342 | Windstream | ATTLEBORO | – | yes | yes |
| 508-343 | AT&T | SEEKONK | – | yes | yes |
| 508-344 | AT&T | STURBRIDGE | – | – | yes |
| 508-345 | T-Mobile | BROCKTON | – | – | yes |
| 508-346 | AT&T | FRANKLIN | – | yes | yes |
| 508-347 | Verizon | STURBRIDGE | – | – | yes |
| 508-348 | Comcast | CHATHAM | – | yes | yes |
| 508-349 | Verizon | WELLFLEET | – | yes | yes |
| 508-350 | Verizon | EBRIDGEWTR | – | yes | yes |
| 508-351 | Verizon | NORTHBORO | – | yes | yes |
| 508-352 | NORFOLK COUNTY INTERNET, INC. | WORCESTER | – | – | yes |
| 508-353 | AT&T | WORCESTER | – | – | yes |
| 508-354 | Verizon | FRAMINGHAM | – | – | yes |
| 508-355 | Verizon | MARION | – | yes | yes |
| 508-356 | Windstream | CATAUMET | – | yes | yes |
| 508-357 | Verizon | MARLBORO | – | yes | yes |
| 508-358 | Verizon | WAYLAND | – | – | yes |
| 508-359 | Verizon | MEDFIELD | – | yes | yes |
| 508-360 | T-Mobile | HYANNIS | – | yes | yes |
| 508-361 | AT&T | FRAMINGHAM | – | – | yes |
| 508-362 | Verizon | BARNSTABLE | – | – | yes |
| 508-363 | Verizon | WORCESTER | – | – | yes |
| 508-364 | AT&T | BARNSTABLE | – | – | yes |
| 508-365 | Lumen | WORCESTER | – | yes | yes |
| 508-366 | Verizon | WESTBORO | – | – | yes |
| 508-367 | AT&T | BARNSTABLE | – | – | yes |
| 508-368 | Verizon | WORCESTER | – | – | yes |
| 508-369 | T-Mobile | MANSFIELD | – | yes | yes |
| 508-370 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-371 | Lumen | FRAMINGHAM | – | yes | yes |
| 508-372 | Windstream | WHITINSVL | 2001-03-06 | yes | yes |
| 508-373 | Windstream | WORCESTER | – | yes | yes |
| 508-374 | Verizon | NANTUCKET | – | yes | yes |
| 508-375 | Verizon | BARNSTABLE | – | yes | yes |
| 508-376 | Verizon | MILLIS | – | yes | yes |
| 508-377 | Lumen | MILFORD | – | yes | yes |
| 508-378 | Verizon | EBRIDGEWTR | – | yes | yes |
| 508-379 | Verizon | NO SWANSEA | – | yes | yes |
| 508-380 | Verizon | FRAMINGHAM | – | – | yes |
| 508-381 | Comcast | MILFORD | – | yes | yes |
| 508-382 | AT&T | MARLBORO | – | yes | yes |
| 508-383 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-384 | Verizon | WRENTHAM | – | – | yes |
| 508-385 | Verizon | DENNIS | – | – | yes |
| 508-386 | Comcast | TAUNTON | – | yes | yes |
| 508-387 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-388 | Onvoy | FALMOUTH | – | yes | yes |
| 508-389 | Verizon | WESTBORO | – | yes | yes |
| 508-390 | Verizon | FRAMINGHAM | – | – | yes |
| 508-391 | Verizon | FRAMINGHAM | – | – | yes |
| 508-392 | RCN TELECOM SERVICES, INC. - MA | CATAUMET | – | yes | yes |
| 508-393 | Verizon | NORTHBORO | – | – | yes |
| 508-394 | Verizon | DENNIS | – | – | yes |
| 508-395 | AT&T | FRAMINGHAM | – | – | yes |
| 508-396 | Verizon | FRAMINGHAM | – | – | yes |
| 508-397 | Verizon | NATICK | – | – | yes |
| 508-398 | Verizon | DENNIS | – | – | yes |
| 508-399 | Verizon | SOUTHGATE | – | yes | yes |
| 508-400 | T-Mobile | HOPKINTON | – | yes | yes |
| 508-401 | Verizon | WAYLAND | 2002-06-04 | yes | yes |
| 508-402 | Windstream | FALL RIVER | – | yes | yes |
| 508-403 | Lumen | CATAUMET | – | yes | yes |
| 508-404 | AT&T | WALPOLE | – | yes | yes |
| 508-405 | RCN TELECOM SERVICES, INC. - MA | FRAMINGHAM | – | yes | yes |
| 508-406 | Lumen | MANSFIELD | – | yes | yes |
| 508-407 | Windstream | AUBURN | – | yes | yes |
| 508-408 | Verizon | BROCKTON | – | yes | yes |
| 508-409 | AT&T | ATTLEBORO | – | yes | yes |
| 508-410 | T-Mobile | WORCESTER | – | – | yes |
| 508-412 | NORFOLK COUNTY INTERNET, INC. | WESTBORO | – | – | yes |
| 508-413 | Lumen | PROVINCETN | 2002-05-23 | yes | yes |
| 508-414 | AT&T | WORCESTER | – | – | yes |
| 508-415 | AT&T | FALL RIVER | 2002-07-03 | yes | yes |
| 508-416 | AT&T | FRAMINGHAM | – | yes | yes |
| 508-417 | Verizon | HOPKINTON | – | yes | yes |
| 508-418 | Windstream | HYANNIS | – | yes | yes |
| 508-419 | Lumen | OSTERVILLE | – | yes | yes |
| 508-420 | Verizon | OSTERVILLE | – | – | yes |
| 508-421 | Verizon | WORCESTER | – | – | yes |
| 508-422 | Verizon | MILFORD | – | yes | yes |
| 508-423 | AT&T | BILLERICA | – | – | yes |
| 508-424 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-425 | RCN TELECOM SERVICES, INC. - MA | WORCESTER | – | yes | yes |
| 508-426 | Bandwidth | AUBURN | – | – | yes |
| 508-427 | Verizon | BROCKTON | – | – | yes |
| 508-428 | Verizon | OSTERVILLE | – | – | yes |
| 508-429 | Verizon | HOLLISTON | – | – | yes |
| 508-430 | Verizon | HARWICH | – | – | yes |
| 508-431 | Verizon | ATTLEBORO | – | yes | yes |
| 508-432 | Verizon | HARWICH | – | – | yes |
| 508-433 | Onvoy | NATICK | – | yes | yes |
| 508-434 | Lumen | CHARLTON | – | yes | yes |
| 508-435 | Verizon | HOPKINTON | – | – | yes |
| 508-436 | Windstream | BROCKTON | – | yes | yes |
| 508-437 | Verizon | BARNSTABLE | – | yes | yes |
| 508-438 | Windstream | WORCESTER | – | – | yes |
| 508-439 | RCN TELECOM SERVICES, INC. - MA | WESTBORO | – | yes | yes |
| 508-440 | RCN TELECOM SERVICES, INC. - MA | FRANKLIN | – | yes | yes |
| 508-441 | T-Mobile | NEWBEDFORD | – | yes | yes |
| 508-442 | NORFOLK COUNTY INTERNET, INC. | PLYMOUTH | – | – | yes |
| 508-443 | Lumen | BRIDGEWTR | – | yes | yes |
| 508-444 | Lumen | FALMOUTH | – | yes | yes |
| 508-445 | Verizon | CATAUMET | – | yes | yes |
| 508-446 | AT&T | FRANKLIN | 2002-07-08 | yes | yes |
| 508-447 | NORFOLK COUNTY INTERNET, INC. | FOXBORO | – | – | yes |
| 508-448 | Verizon | REHOBOTH | – | yes | yes |
| 508-449 | Lumen | MARLBORO | – | yes | yes |
| 508-450 | Verizon | WORCESTER | – | – | yes |
| 508-451 | AT&T | LAWRENCE | – | – | yes |
| 508-452 | Windstream | MANSFIELD | – | yes | yes |
| 508-453 | Windstream | WORCESTER | – | – | yes |
| 508-454 | T-Mobile | WALPOLE | – | yes | yes |
| 508-455 | Comcast | ATTLEBORO | – | yes | yes |
| 508-456 | Comcast | EBRIDGEWTR | – | yes | yes |
| 508-457 | Verizon | FALMOUTH | – | yes | yes |
| 508-458 | Verizon | MILFORD | – | yes | yes |
| 508-459 | Windstream | WORCESTER | – | yes | yes |
| 508-460 | Verizon | MARLBORO | – | – | yes |
| 508-461 | RCN TELECOM SERVICES, INC. - MA | WEBSTER | – | yes | yes |
| 508-462 | Verizon | CHARLTON | – | yes | yes |
| 508-463 | Verizon | ATTLEBORO | – | yes | yes |
| 508-464 | Verizon | UPTON | – | yes | yes |
| 508-465 | Comcast | CARVER | 2006-10-23 | yes | yes |
| 508-466 | Onvoy | NORTHBORO | – | yes | yes |
| 508-467 | AT&T | MARLBORO | – | – | yes |
| 508-468 | AT&T | BROCKTON | – | yes | yes |
| 508-469 | Windstream | CHATHAM | – | yes | yes |
| 508-470 | Bandwidth | DENNIS | – | yes | yes |
| 508-471 | Windstream | WORCESTER | – | yes | yes |
| 508-472 | T-Mobile | WALPOLE | – | yes | yes |
| 508-473 | Verizon | MILFORD | – | – | yes |
| 508-474 | Windstream | HOLLISTON | – | yes | yes |
| 508-475 | Verizon | WESTBORO | – | yes | yes |
| 508-476 | Verizon | E DOUGLAS | – | yes | yes |
| 508-477 | Verizon | OSTERVILLE | – | – | yes |
| 508-478 | Verizon | MILFORD | – | – | yes |
| 508-479 | Verizon | DOVER | – | – | yes |
| 508-480 | Verizon | MARLBORO | – | yes | yes |
| 508-481 | Verizon | MARLBORO | – | – | yes |
| 508-482 | Verizon | MILFORD | – | – | yes |
| 508-483 | Verizon | FRAMINGHAM | – | – | yes |
| 508-484 | Verizon | BROCKTON | – | yes | yes |
| 508-485 | Verizon | MARLBORO | – | – | yes |
| 508-486 | Verizon | MARLBORO | – | – | yes |
| 508-487 | Verizon | PROVINCETN | – | – | yes |
| 508-488 | Windstream | MILFORD | – | yes | yes |
| 508-489 | Verizon | FRAMINGHAM | – | – | yes |
| 508-490 | Verizon | MARLBORO | – | – | yes |
| 508-491 | Verizon | FALL RIVER | – | yes | yes |
| 508-492 | Bandwidth | WALPOLE | – | yes | yes |
| 508-493 | AT&T | FALL RIVER | – | – | yes |
| 508-494 | AT&T | FRAMINGHAM | – | – | yes |
| 508-495 | Verizon | FALMOUTH | – | yes | yes |
| 508-496 | T-Mobile | FALL RIVER | – | – | yes |
| 508-497 | Verizon | HOPKINTON | – | – | yes |
| 508-498 | AT&T | MILFORD | – | – | yes |
| 508-499 | Windstream | OXFORD | 2003-11-12 | yes | yes |
| 508-500 | Lumen | MARION | – | yes | yes |
| 508-501 | AT&T | NEWBEDFORD | – | yes | yes |
| 508-502 | Verizon | WORCESTER | 2003-02-05 | yes | yes |
| 508-503 | Lumen | PLYMOUTH | – | yes | yes |
| 508-504 | Onvoy | WEBSTER | 2018-03-05 | yes | yes |
| 508-505 | Verizon | WALPOLE | – | yes | yes |
| 508-506 | Windstream | OXFORD | 2003-06-19 | yes | yes |
| 508-507 | Lumen | FRANKLIN | 2001-06-14 | yes | yes |
| 508-508 | MASS MOBILE LLC | WORCESTER | 2025-03-04 | yes | yes |
| 508-509 | T-Mobile | ROCHESTER | – | yes | yes |
| 508-510 | RCN TELECOM SERVICES, INC. - MA | BROCKTON | – | yes | yes |
| 508-513 | AT&T | BROCKTON | – | yes | yes |
| 508-514 | Windstream | WELLFLEET | – | yes | yes |
| 508-517 | AT&T | WESTFORD | – | – | yes |
| 508-518 | AT&T | FRAMINGHAM | – | – | yes |
| 508-519 | Verizon | WORCESTER | – | yes | yes |
| 508-520 | Verizon | FRANKLIN | – | – | yes |
| 508-521 | Windstream | BROCKTON | – | yes | yes |
| 508-522 | Verizon | FRAMINGHAM | – | – | yes |
| 508-523 | Verizon | SHREWSBURY | – | – | yes |
| 508-524 | AT&T | FALMOUTH | – | – | yes |
| 508-525 | RCN TELECOM SERVICES, INC. - MA | NEWBEDFORD | – | yes | yes |
| 508-526 | Verizon | UXBRIDGE | – | yes | yes |
| 508-527 | AT&T | PEABODY | – | – | yes |
| 508-528 | Verizon | FRANKLIN | – | – | yes |
| 508-529 | Verizon | UPTON | – | yes | yes |
| 508-530 | Verizon | FRANKLIN | – | yes | yes |
| 508-531 | Windstream | BRIDGEWTR | – | – | yes |
| 508-532 | Windstream | FRAMINGHAM | – | – | yes |
| 508-533 | Verizon | MEDWAY | – | – | yes |
| 508-534 | Lumen | HYANNIS | – | yes | yes |
| 508-535 | Windstream | EASTON | – | yes | yes |
| 508-536 | Lumen | FALL RIVER | – | yes | yes |
| 508-537 | American Messaging | AUBURN | – | – | yes |
| 508-538 | Windstream | MARION | – | yes | yes |
| 508-539 | Verizon | OSTERVILLE | – | – | yes |
| 508-540 | Verizon | FALMOUTH | – | – | yes |
| 508-541 | Verizon | FRANKLIN | – | yes | yes |
| 508-542 | AT&T | NEWBEDFORD | – | – | yes |
| 508-543 | Verizon | FOXBORO | – | – | yes |
| 508-544 | Verizon | HOPKINTON | – | yes | yes |
| 508-545 | Comcast | NATICK | – | yes | yes |
| 508-546 | Verizon | FOXBORO | – | yes | yes |
| 508-547 | NORFOLK COUNTY INTERNET, INC. | FALL RIVER | – | – | yes |
| 508-548 | Verizon | FALMOUTH | – | – | yes |
| 508-549 | Verizon | FOXBORO | – | – | yes |
| 508-551 | Verizon | WORCESTER | 2002-03-12 | – | yes |
| 508-552 | Windstream | WORCESTER | – | yes | yes |
| 508-553 | Verizon | FRANKLIN | – | – | yes |
| 508-556 | Lumen | WORCESTER | – | yes | yes |
| 508-557 | Comcast | SEEKONK | – | yes | yes |
| 508-558 | Lumen | FALL RIVER | – | yes | yes |
| 508-559 | Verizon | BROCKTON | – | – | yes |
| 508-560 | AT&T | VINEYRDHVN | – | – | yes |
| 508-561 | Verizon | FRAMINGHAM | – | – | yes |
| 508-562 | Lumen | BROCKTON | – | yes | yes |
| 508-563 | Verizon | CATAUMET | – | yes | yes |
| 508-564 | Verizon | CATAUMET | – | yes | yes |
| 508-565 | Verizon | EASTON | – | yes | yes |
| 508-566 | AT&T | CATAUMET | – | yes | yes |
| 508-567 | Comcast | FALL RIVER | – | yes | yes |
| 508-568 | Windstream | HYANNIS | – | yes | yes |
| 508-569 | Verizon | WORCESTER | – | – | yes |
| 508-570 | Lumen | FRANKLIN | 2001-04-11 | yes | yes |
| 508-571 | AT&T | NORTHBORO | – | yes | yes |
| 508-572 | AT&T | BILLERICA | – | – | yes |
| 508-573 | Verizon | MARLBORO | – | yes | yes |
| 508-574 | AT&T | BILLERICA | – | – | yes |
| 508-575 | NEP, LLC | TAUNTON | 2003-09-29 | – | yes |
| 508-576 | Lumen | NO ATTLEBO | – | yes | yes |
| 508-577 | AT&T | BROCKTON | – | – | yes |
| 508-578 | Bandwidth | DOVER | – | – | yes |
| 508-579 | T-Mobile | WORCESTER | – | yes | yes |
| 508-580 | Verizon | BROCKTON | – | – | yes |
| 508-581 | Verizon | MILLBURY | – | yes | yes |
| 508-582 | NORFOLK COUNTY INTERNET, INC. | HYANNIS | – | – | yes |
| 508-583 | Verizon | BROCKTON | – | – | yes |
| 508-584 | Verizon | BROCKTON | – | – | yes |
| 508-585 | NORFOLK COUNTY INTERNET, INC. | BRIDGEWTR | – | – | yes |
| 508-586 | Verizon | BROCKTON | – | – | yes |
| 508-587 | Verizon | BROCKTON | – | – | yes |
| 508-588 | Verizon | BROCKTON | – | – | yes |
| 508-589 | Verizon | HOPKINTON | – | yes | yes |
| 508-590 | Verizon | FRANKLIN | – | yes | yes |
| 508-591 | AT&T | PLYMOUTH | – | yes | yes |
| 508-592 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-593 | Lumen | CHATHAM | – | yes | yes |
| 508-594 | AT&T | MANSFIELD | – | yes | yes |
| 508-595 | Verizon | WORCESTER | – | yes | yes |
| 508-596 | AT&T | FRAMINGHAM | – | – | yes |
| 508-597 | Verizon | MARLBORO | – | yes | yes |
| 508-598 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-599 | Verizon | WESTBORO | – | yes | yes |
| 508-600 | AT&T | HYANNIS | 2026-08-20 | yes | yes |
| 508-603 | Lumen | UPTON | 2002-06-27 | yes | yes |
| 508-612 | Verizon | WORCESTER | – | – | yes |
| 508-613 | Lumen | FRANKLIN | – | yes | yes |
| 508-614 | AT&T | WESTBORO | – | yes | yes |
| 508-615 | T-Mobile | WORCESTER | – | – | yes |
| 508-616 | Verizon | WESTBORO | – | – | yes |
| 508-617 | AT&T | FALL RIVER | 2002-07-18 | yes | yes |
| 508-618 | Verizon | MANSFIELD | – | yes | yes |
| 508-619 | Lumen | DENNIS | – | yes | yes |
| 508-620 | Verizon | FRAMINGHAM | – | – | yes |
| 508-621 | AT&T | WESTBORO | – | yes | yes |
| 508-622 | Comcast | NORTON | – | yes | yes |
| 508-623 | Windstream | FOXBORO | – | yes | yes |
| 508-624 | Verizon | MARLBORO | – | – | yes |
| 508-625 | Comcast | HOPKINTON | – | yes | yes |
| 508-626 | Verizon | FRAMINGHAM | – | – | yes |
| 508-627 | Verizon | EDGARTOWN | – | yes | yes |
| 508-628 | Verizon | FRAMINGHAM | – | – | yes |
| 508-629 | Verizon | VINEYRDHVN | – | yes | yes |
| 508-630 | Lumen | MARLBORO | – | yes | yes |
| 508-631 | AT&T | BROCKTON | – | – | yes |
| 508-632 | Verizon | HARWICH | – | yes | yes |
| 508-633 | AT&T | LAWRENCE | – | – | yes |
| 508-634 | Verizon | MILFORD | – | – | yes |
| 508-635 | Lumen | WORCESTER | – | yes | yes |
| 508-636 | Verizon | WESTPORT | – | – | yes |
| 508-637 | Verizon | NOBROOKFLD | 2002-06-04 | yes | yes |
| 508-638 | Windstream | BROCKTON | – | yes | yes |
| 508-639 | Windstream | SOUTHGATE | – | yes | yes |
| 508-640 | Windstream | WEBSTER | – | yes | yes |
| 508-641 | Verizon | WALPOLE | – | – | yes |
| 508-642 | AT&T | FALL RIVER | – | – | yes |
| 508-643 | Verizon | NO ATTLEBO | – | yes | yes |
| 508-644 | Verizon | ASSONET | – | yes | yes |
| 508-645 | Verizon | CHILMARK | – | yes | yes |
| 508-646 | Verizon | FALL RIVER | – | yes | yes |
| 508-647 | Verizon | NATICK | – | – | yes |
| 508-648 | AT&T | OSTERVILLE | – | – | yes |
| 508-649 | AT&T | BROCKTON | 2006-06-20 | yes | yes |
| 508-650 | Verizon | NATICK | – | yes | yes |
| 508-651 | Verizon | NATICK | – | yes | yes |
| 508-652 | Verizon | NATICK | – | yes | yes |
| 508-653 | Verizon | NATICK | – | – | yes |
| 508-654 | AT&T | NATICK | – | – | yes |
| 508-655 | Verizon | NATICK | – | – | yes |
| 508-656 | Windstream | FRAMINGHAM | 2001-02-16 | yes | yes |
| 508-657 | Comcast | BELLINGHAM | – | yes | yes |
| 508-658 | Onvoy | MARLBORO | – | yes | yes |
| 508-659 | Windstream | BRIDGEWTR | 2002-07-03 | yes | yes |
| 508-660 | Verizon | WALPOLE | – | – | yes |
| 508-661 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-662 | AT&T | LAWRENCE | – | – | yes |
| 508-663 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-664 | Verizon | WELLFLEET | – | yes | yes |
| 508-665 | Windstream | FRAMINGHAM | – | yes | yes |
| 508-666 | NORFOLK COUNTY INTERNET, INC. | ORLEANS | – | – | yes |
| 508-667 | AT&T | WORCESTER | – | – | yes |
| 508-668 | Verizon | WALPOLE | – | – | yes |
| 508-669 | Verizon | DIGHTON | – | yes | yes |
| 508-670 | NORFOLK COUNTY INTERNET, INC. | EDGARTOWN | – | – | yes |
| 508-671 | Verizon | WEBSTER | – | yes | yes |
| 508-672 | Verizon | FALL RIVER | – | – | yes |
| 508-673 | Verizon | FALL RIVER | – | – | yes |
| 508-674 | Verizon | FALL RIVER | – | – | yes |
| 508-675 | Verizon | FALL RIVER | – | – | yes |
| 508-676 | Verizon | FALL RIVER | – | – | yes |
| 508-677 | Verizon | FALL RIVER | – | yes | yes |
| 508-678 | Verizon | FALL RIVER | – | – | yes |
| 508-679 | Verizon | FALL RIVER | – | – | yes |
| 508-680 | Verizon | NANTUCKET | – | yes | yes |
| 508-681 | FREEDOM RING COMMUNICATIONS, LLC | OSTERVILLE | 2006-07-21 | yes | yes |
| 508-682 | Lumen | EASTON | – | yes | yes |
| 508-683 | Windstream | MARLBORO | 2001-02-16 | yes | yes |
| 508-684 | Windstream | VINEYRDHVN | – | yes | yes |
| 508-685 | T-Mobile | BARNSTABLE | – | yes | yes |
| 508-686 | Lumen | HOPKINTON | 2001-02-16 | yes | yes |
| 508-687 | Onvoy | VINEYRDHVN | – | yes | yes |
| 508-688 | AT&T | WORCESTER | – | yes | yes |
| 508-689 | AT&T | FALL RIVER | – | yes | yes |
| 508-690 | Verizon | EBRIDGEWTR | – | yes | yes |
| 508-691 | Verizon | NORTHBORO | – | yes | yes |
| 508-692 | Lumen | TAUNTON | – | yes | yes |
| 508-693 | Verizon | VINEYRDHVN | – | – | yes |
| 508-694 | Onvoy | DENNIS | – | yes | yes |
| 508-695 | Verizon | NO ATTLEBO | – | – | yes |
| 508-696 | Verizon | VINEYRDHVN | – | yes | yes |
| 508-697 | Verizon | BRIDGEWTR | – | – | yes |
| 508-698 | Verizon | FOXBORO | – | – | yes |
| 508-699 | Verizon | NO ATTLEBO | – | – | yes |
| 508-709 | Lumen | NORTHBORO | – | yes | yes |
| 508-713 | Verizon | WORCESTER | – | yes | yes |
| 508-714 | Lumen | WHITINSVL | – | yes | yes |
| 508-715 | Lumen | EBRIDGEWTR | – | yes | yes |
| 508-716 | NORFOLK COUNTY INTERNET, INC. | NANTUCKET | – | – | yes |
| 508-717 | Windstream | NEWBEDFORD | – | yes | yes |
| 508-718 | Verizon | FOXBORO | – | yes | yes |
| 508-719 | Windstream | SHREWSBURY | – | yes | yes |
| 508-720 | Windstream | NATICK | – | yes | yes |
| 508-721 | Verizon | AUBURN | – | yes | yes |
| 508-722 | Bandwidth | AUBURN | – | – | yes |
| 508-723 | Verizon | WORCESTER | – | yes | yes |
| 508-724 | Verizon | NEWBEDFORD | 2026-09-04 | yes | no |
| 508-725 | T-Mobile | WALPOLE | – | yes | yes |
| 508-726 | T-Mobile | MARLBORO | – | yes | yes |
| 508-727 | Bandwidth | AUBURN | – | – | yes |
| 508-728 | Verizon | ROCHESTER | – | – | yes |
| 508-729 | Verizon | AUBURN | – | – | yes |
| 508-730 | Verizon | FALL RIVER | – | yes | yes |
| 508-731 | Charter | OXFORD | 2004-05-04 | yes | yes |
| 508-732 | Verizon | PLYMOUTH | – | yes | yes |
| 508-733 | AT&T | FRAMINGHAM | – | – | yes |
| 508-734 | Lumen | WALPOLE | 2001-02-16 | yes | yes |
| 508-735 | Verizon | WORCESTER | – | – | yes |
| 508-736 | AT&T | WORCESTER | 2001-02-21 | – | yes |
| 508-737 | Verizon | HYANNIS | – | – | yes |
| 508-738 | Lumen | TAUNTON | 2001-02-16 | yes | yes |
| 508-739 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-740 | T-Mobile | FRAMINGHAM | – | yes | yes |
| 508-741 | NORFOLK COUNTY INTERNET, INC. | BROCKTON | – | – | yes |
| 508-742 | Windstream | NEWBEDFORD | – | yes | yes |
| 508-743 | Verizon | BUZZARDSBY | – | yes | yes |
| 508-744 | AT&T | BARNSTABLE | – | yes | yes |
| 508-745 | Verizon | NATICK | – | yes | yes |
| 508-746 | Verizon | PLYMOUTH | – | – | yes |
| 508-747 | Verizon | PLYMOUTH | – | – | yes |
| 508-748 | Verizon | MARION | – | yes | yes |
| 508-749 | Windstream | WORCESTER | – | – | yes |
| 508-750 | NORFOLK COUNTY INTERNET, INC. | PROVINCETN | – | – | yes |
| 508-751 | Verizon | WORCESTER | – | yes | yes |
| 508-752 | Verizon | WORCESTER | – | – | yes |
| 508-753 | Verizon | WORCESTER | – | – | yes |
| 508-754 | Verizon | WORCESTER | – | – | yes |
| 508-755 | Verizon | WORCESTER | – | – | yes |
| 508-756 | Verizon | WORCESTER | – | – | yes |
| 508-757 | Verizon | WORCESTER | – | – | yes |
| 508-758 | Verizon | MATTAPOSTT | – | yes | yes |
| 508-759 | Verizon | BUZZARDSBY | – | – | yes |
| 508-760 | Verizon | DENNIS | – | – | yes |
| 508-761 | Verizon | SOUTHGATE | – | yes | yes |
| 508-762 | AT&T | WORCESTER | – | yes | yes |
| 508-763 | Verizon | ROCHESTER | – | yes | yes |
| 508-764 | Verizon | SOUTHBDG | – | – | yes |
| 508-765 | Verizon | SOUTHBDG | – | – | yes |
| 508-766 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-767 | Verizon | WORCESTER | – | yes | yes |
| 508-768 | Windstream | WESTBORO | – | yes | yes |
| 508-769 | Verizon | WORCESTER | – | – | yes |
| 508-770 | Verizon | WORCESTER | – | yes | yes |
| 508-771 | Verizon | HYANNIS | – | – | yes |
| 508-772 | Windstream | FOXBORO | – | yes | yes |
| 508-773 | NORFOLK COUNTY INTERNET, INC. | FRANKLIN | – | – | yes |
| 508-774 | Verizon | FALL RIVER | 2025-04-14 | yes | yes |
| 508-775 | Verizon | HYANNIS | – | – | yes |
| 508-776 | Verizon | HYANNIS | – | – | yes |
| 508-777 | NORFOLK COUNTY INTERNET, INC. | OSTERVILLE | – | – | yes |
| 508-778 | Verizon | HYANNIS | – | – | yes |
| 508-779 | Charter | UXBRIDGE | 2004-05-28 | yes | yes |
| 508-780 | Verizon | DOVER | – | – | yes |
| 508-781 | Verizon | NEWBEDFORD | 2025-11-26 | yes | yes |
| 508-782 | AT&T | FRAMINGHAM | – | yes | yes |
| 508-783 | AT&T | LAWRENCE | – | – | yes |
| 508-784 | Windstream | CHARLTON | – | yes | yes |
| 508-785 | Verizon | DOVER | – | yes | yes |
| 508-786 | Verizon | MARLBORO | – | yes | yes |
| 508-787 | Verizon | MARLBORO | – | yes | yes |
| 508-788 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-789 | Verizon | ROCHESTER | – | – | yes |
| 508-790 | Verizon | HYANNIS | – | – | yes |
| 508-791 | Verizon | WORCESTER | – | – | yes |
| 508-792 | Verizon | WORCESTER | – | yes | yes |
| 508-793 | Verizon | WORCESTER | – | – | yes |
| 508-794 | Comcast | MILLIS | – | yes | yes |
| 508-795 | Verizon | WORCESTER | – | – | yes |
| 508-796 | Verizon | WORCESTER | – | yes | yes |
| 508-797 | Verizon | WORCESTER | – | yes | yes |
| 508-798 | Verizon | WORCESTER | – | – | yes |
| 508-799 | Verizon | WORCESTER | – | – | yes |
| 508-800 | Verizon | WALPOLE | – | – | yes |
| 508-801 | T-Mobile | WALPOLE | – | yes | yes |
| 508-802 | Windstream | TAUNTON | – | yes | yes |
| 508-803 | Verizon | FRANKLIN | – | yes | yes |
| 508-804 | AT&T | MARLBORO | – | yes | yes |
| 508-805 | NORFOLK COUNTY INTERNET, INC. | ATTLEBORO | – | – | yes |
| 508-806 | American Messaging | AUBURN | – | – | yes |
| 508-807 | Comcast | BRIDGEWTR | – | yes | yes |
| 508-808 | AT&T | FRAMINGHAM | – | yes | yes |
| 508-809 | Windstream | NO ATTLEBO | – | yes | yes |
| 508-810 | Verizon | NATICK | – | yes | yes |
| 508-812 | Lumen | NO SWANSEA | 2004-08-16 | yes | yes |
| 508-813 | AT&T | TAUNTON | – | – | yes |
| 508-815 | RCN TELECOM SERVICES, INC. - MA | HYANNIS | – | yes | yes |
| 508-816 | T-Mobile | FRAMINGHAM | – | yes | yes |
| 508-817 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-818 | Windstream | BROCKTON | – | yes | yes |
| 508-819 | Windstream | BRIDGEWTR | – | yes | yes |
| 508-820 | Verizon | FRAMINGHAM | – | – | yes |
| 508-821 | Verizon | TAUNTON | – | yes | yes |
| 508-822 | Verizon | TAUNTON | – | – | yes |
| 508-823 | Verizon | TAUNTON | – | – | yes |
| 508-824 | Verizon | TAUNTON | – | – | yes |
| 508-825 | Verizon | NANTUCKET | – | yes | yes |
| 508-826 | AT&T | WORCESTER | – | – | yes |
| 508-827 | AT&T | HYANNIS | – | yes | yes |
| 508-828 | Verizon | TAUNTON | – | yes | yes |
| 508-829 | Verizon | HOLDEN | – | – | yes |
| 508-830 | Verizon | PLYMOUTH | – | – | yes |
| 508-831 | Verizon | WORCESTER | – | yes | yes |
| 508-832 | Verizon | AUBURN | – | – | yes |
| 508-833 | Verizon | SAGAMORE | – | – | yes |
| 508-834 | Bandwidth | FRAMINGHAM | – | yes | yes |
| 508-835 | Verizon | W BOYLSTON | – | yes | yes |
| 508-836 | Verizon | WESTBORO | – | – | yes |
| 508-837 | Windstream | FALL RIVER | – | yes | yes |
| 508-838 | AT&T | ATTLEBORO | – | yes | yes |
| 508-839 | Verizon | GRAFTON | – | – | yes |
| 508-840 | T-Mobile | ATTLEBORO | 2008-07-23 | yes | yes |
| 508-841 | Verizon | SHREWSBURY | – | yes | yes |
| 508-842 | Verizon | SHREWSBURY | – | – | yes |
| 508-843 | AT&T | BEVERLY | – | – | yes |
| 508-844 | AT&T | TAUNTON | – | yes | yes |
| 508-845 | Verizon | SHREWSBURY | – | yes | yes |
| 508-846 | AT&T | BROCKTON | – | – | yes |
| 508-847 | AT&T | WORCESTER | – | – | yes |
| 508-848 | Windstream | FRAMINGHAM | – | yes | yes |
| 508-849 | Verizon | WORCESTER | – | yes | yes |
| 508-850 | Verizon | WALPOLE | – | yes | yes |
| 508-851 | Verizon | MANSFIELD | – | yes | yes |
| 508-852 | Verizon | WORCESTER | – | – | yes |
| 508-853 | Verizon | WORCESTER | – | – | yes |
| 508-854 | Verizon | WORCESTER | – | – | yes |
| 508-855 | Verizon | WORCESTER | – | – | yes |
| 508-856 | Verizon | WORCESTER | – | – | yes |
| 508-857 | Comcast | BROCKTON | – | yes | yes |
| 508-858 | Lumen | NEWBEDFORD | – | yes | yes |
| 508-859 | Lumen | LEICESTER | 2004-08-16 | yes | yes |
| 508-860 | Verizon | WORCESTER | – | yes | yes |
| 508-861 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-862 | Verizon | HYANNIS | – | – | yes |
| 508-863 | T-Mobile | ROCHESTER | – | yes | yes |
| 508-864 | Verizon | AUBURN | – | – | yes |
| 508-865 | Verizon | MILLBURY | – | – | yes |
| 508-866 | Verizon | CARVER | – | yes | yes |
| 508-867 | Verizon | NOBROOKFLD | – | – | yes |
| 508-868 | Verizon | WORCESTER | – | – | yes |
| 508-869 | Verizon | BOYLSTON | – | yes | yes |
| 508-870 | Verizon | WESTBORO | – | – | yes |
| 508-871 | Verizon | WESTBORO | – | yes | yes |
| 508-872 | Verizon | FRAMINGHAM | – | – | yes |
| 508-873 | AT&T | WORCESTER | – | – | yes |
| 508-874 | NORFOLK COUNTY INTERNET, INC. | STURBRIDGE | – | – | yes |
| 508-875 | Verizon | FRAMINGHAM | – | – | yes |
| 508-876 | Verizon | BLACKSTONE | – | yes | yes |
| 508-877 | Verizon | FRAMINGHAM | – | – | yes |
| 508-878 | AT&T | CAMBRIDGE | – | – | yes |
| 508-879 | Verizon | FRAMINGHAM | – | – | yes |
| 508-880 | Verizon | TAUNTON | – | – | yes |
| 508-881 | Verizon | FRAMINGHAM | – | – | yes |
| 508-882 | Verizon | OAKHAM | – | yes | yes |
| 508-883 | Verizon | BLACKSTONE | – | – | yes |
| 508-884 | Verizon | TAUNTON | – | yes | yes |
| 508-885 | Verizon | SPENCER | – | – | yes |
| 508-886 | Verizon | RUTLAND | – | yes | yes |
| 508-887 | Verizon | GRAFTON | – | yes | yes |
| 508-888 | Verizon | SAGAMORE | – | – | yes |
| 508-889 | T-Mobile | ROCHESTER | – | yes | yes |
| 508-890 | Verizon | WORCESTER | – | – | yes |
| 508-891 | Verizon | FALMOUTH | – | – | yes |
| 508-892 | Verizon | LEICESTER | – | yes | yes |
| 508-893 | Verizon | HOLLISTON | – | yes | yes |
| 508-894 | Verizon | BROCKTON | – | yes | yes |
| 508-895 | Verizon | BROCKTON | – | yes | yes |
| 508-896 | Verizon | BREWSTER | – | – | yes |
| 508-897 | Verizon | BROCKTON | – | yes | yes |
| 508-898 | Verizon | WESTBORO | – | – | yes |
| 508-899 | Bandwidth | AUBURN | – | – | yes |
| 508-901 | Windstream | NANTUCKET | – | yes | yes |
| 508-902 | Windstream | MILFORD | – | yes | yes |
| 508-903 | AT&T | NATICK | – | yes | yes |
| 508-904 | T-Mobile | FRAMINGHAM | – | – | yes |
| 508-905 | Onvoy | WELLFLEET | – | yes | yes |
| 508-906 | Verizon | MEDFIELD | – | yes | yes |
| 508-907 | Windstream | NATICK | – | yes | yes |
| 508-909 | Windstream | SOUTHBDG | – | yes | yes |
| 508-910 | Verizon | NEWBEDFORD | – | – | yes |
| 508-915 | Lumen | SOUTHGATE | – | yes | yes |
| 508-916 | Lumen | FALL RIVER | – | yes | yes |
| 508-917 | Windstream | MILLBURY | – | yes | yes |
| 508-918 | AT&T | FRANKLIN | 2001-02-21 | yes | yes |
| 508-919 | Windstream | NORTHBORO | – | yes | yes |
| 508-921 | Lumen | WALPOLE | – | yes | yes |
| 508-922 | T-Mobile | HOPKINTON | – | yes | yes |
| 508-923 | Verizon | MIDDLEBORO | – | yes | yes |
| 508-924 | Windstream | EBRIDGEWTR | – | yes | yes |
| 508-925 | AT&T | SHREWSBURY | – | yes | yes |
| 508-926 | AT&T | WORCESTER | – | yes | yes |
| 508-927 | AT&T | PLYMOUTH | – | yes | yes |
| 508-928 | Comcast | BLACKSTONE | – | yes | yes |
| 508-929 | Verizon | WORCESTER | – | – | yes |
| 508-930 | Verizon | BROCKTON | – | – | yes |
| 508-932 | AT&T | BEVERLY | – | – | yes |
| 508-933 | T-Mobile | ROCHESTER | 2008-07-23 | yes | yes |
| 508-934 | Lumen | DOVER | – | yes | yes |
| 508-935 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-936 | Lumen | NORTHBORO | – | yes | yes |
| 508-937 | Windstream | BELLINGHAM | – | – | yes |
| 508-938 | Lumen | WESTPORT | – | yes | yes |
| 508-939 | Verizon | EDGARTOWN | – | yes | yes |
| 508-941 | Verizon | BROCKTON | – | yes | yes |
| 508-942 | Verizon | BROCKTON | – | – | yes |
| 508-943 | Verizon | WEBSTER | – | – | yes |
| 508-944 | Verizon | BROCKTON | – | – | yes |
| 508-945 | Verizon | CHATHAM | – | – | yes |
| 508-946 | Verizon | MIDDLEBORO | – | – | yes |
| 508-947 | Verizon | MIDDLEBORO | – | – | yes |
| 508-948 | AT&T | WESTBORO | – | yes | yes |
| 508-949 | Verizon | WEBSTER | – | – | yes |
| 508-951 | Verizon | NEWBEDFORD | – | – | yes |
| 508-952 | AT&T | NORTON | – | yes | yes |
| 508-954 | Verizon | WRENTHAM | – | – | yes |
| 508-955 | Bandwidth | CHILMARK | – | yes | yes |
| 508-956 | Verizon | WORCESTER | – | – | yes |
| 508-957 | Verizon | HYANNIS | – | yes | yes |
| 508-958 | T-Mobile | HOPKINTON | – | yes | yes |
| 508-960 | Lumen | NATICK | – | yes | yes |
| 508-961 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-962 | T-Mobile | FRAMINGHAM | – | yes | yes |
| 508-963 | T-Mobile | WORCESTER | 2001-02-14 | yes | yes |
| 508-964 | Bandwidth | MANSFIELD | – | yes | yes |
| 508-965 | Verizon | NEWBEDFORD | – | – | yes |
| 508-966 | Verizon | BELLINGHAM | – | yes | yes |
| 508-967 | Windstream | TAUNTON | – | yes | yes |
| 508-968 | Verizon | CATAUMET | – | – | yes |
| 508-969 | Lumen | FRAMINGHAM | – | yes | yes |
| 508-970 | Windstream | MARLBORO | – | yes | yes |
| 508-971 | AT&T | NEWBEDFORD | – | – | yes |
| 508-972 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-973 | Verizon | FALL RIVER | 2010-05-14 | yes | yes |
| 508-974 | T-Mobile | FALL RIVER | – | yes | yes |
| 508-975 | Lumen | NATICK | – | yes | yes |
| 508-977 | Verizon | TAUNTON | – | yes | yes |
| 508-978 | Onvoy | TAUNTON | 2023-05-26 | yes | yes |
| 508-979 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-980 | Windstream | CHARLTON | – | yes | yes |
| 508-981 | AT&T | WORCESTER | – | – | yes |
| 508-982 | T-Mobile | LAWRENCE | – | yes | yes |
| 508-983 | Verizon | WESTBORO | – | yes | yes |
| 508-984 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-985 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-986 | Windstream | WESTBORO | – | yes | yes |
| 508-987 | Verizon | OXFORD | – | yes | yes |
| 508-988 | Verizon | FRAMINGHAM | – | yes | yes |
| 508-989 | T-Mobile | FALL RIVER | 2001-02-14 | yes | yes |
| 508-990 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-991 | Verizon | NEWBEDFORD | – | yes | yes |
| 508-992 | Verizon | NEWBEDFORD | – | – | yes |
| 508-993 | Verizon | NEWBEDFORD | – | – | yes |
| 508-994 | Verizon | NEWBEDFORD | – | – | yes |
| 508-995 | Verizon | NEWBEDFORD | – | – | yes |
| 508-996 | Verizon | NEWBEDFORD | – | – | yes |
| 508-997 | Verizon | NEWBEDFORD | – | – | yes |
| 508-998 | Verizon | NEWBEDFORD | – | – | yes |
| 508-999 | Verizon | NEWBEDFORD | – | – | yes |
Frequently asked
How many prefixes does area code 508 have?
749 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,490 thousand-number ranges across 94 rate centers.
What do the first three digits after 508 tell me?
They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.
Is a 508 prefix tied to a specific town?
To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.
What does “pooled” mean in the 508 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 439 of 508's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.
Source and limits
NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.
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