All assignees
800 prefixes in 508 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 508-200 | XXXXXXXXXX | 9102 | — | — |
| 508-201 | — | — | ||
| 508-202 | FRAMINGHAM | 4018 | — | Yes |
| 508-203 | FOXBORO | 4018 | 2001-04-11 | Yes |
| 508-204 | NEWBEDFORD | 939H | 2022-05-10 | Yes |
| 508-205 | EASTON | 829J | — | Yes |
| 508-206 | NATICK | 7229 | 2018-02-15 | Yes |
| 508-207 | NEWBEDFORD | 6387 | 2001-10-11 | Yes |
| 508-208 | BROCKTON | 6387 | — | — |
| 508-209 | PLYMOUTH | 9102 | — | Yes |
| 508-210 | HOLDEN | 4018 | — | Yes |
| 508-211 | XXXXXXXXXX | MULT | — | — |
| 508-212 | ATTLEBORO | 4036 | — | — |
| 508-213 | WEBSTER | 7135 | — | Yes |
| 508-214 | WELLFLEET | 4018 | — | Yes |
| 508-215 | FRAMINGHAM | 7135 | — | Yes |
| 508-216 | FOXBORO | 7135 | — | Yes |
| 508-217 | BRIDGEWTR | 7135 | — | Yes |
| 508-218 | NATICK | 6083 | — | — |
| 508-219 | EASTON | 4018 | — | Yes |
| 508-220 | XXXXXXXXXX | 9102 | — | — |
| 508-221 | NANTUCKET | 6387 | — | — |
| 508-222 | ATTLEBORO | 9102 | — | — |
| 508-223 | ATTLEBORO | 9102 | — | Yes |
| 508-224 | PLYMOUTH | 9102 | — | — |
| 508-225 | HYANNIS | 4036 | 2023-08-02 | Yes |
| 508-226 | ATTLEBORO | 9102 | — | — |
| 508-227 | — | — | ||
| 508-228 | NANTUCKET | 9102 | — | — |
| 508-229 | MARLBORO | 9102 | — | — |
| 508-230 | EASTON | 9102 | — | — |
| 508-231 | FRAMINGHAM | 9102 | — | Yes |
| 508-232 | BROCKTON | 5562 | — | Yes |
| 508-233 | NATICK | 9102 | — | Yes |
| 508-234 | WHITINSVL | 9102 | — | — |
| 508-235 | FALL RIVER | 9102 | — | — |
| 508-236 | ATTLEBORO | 9102 | — | — |
| 508-237 | ORLEANS | 6387 | — | — |
| 508-238 | EASTON | 9102 | — | — |
| 508-239 | FRAMINGHAM | 4036 | 2018-08-14 | Yes |
| 508-240 | ORLEANS | 9102 | — | Yes |
| 508-241 | CHATHAM | 4036 | — | — |
| 508-242 | MEDFIELD | 9102 | — | Yes |
| 508-243 | ATTLEBORO | 6387 | — | — |
| 508-244 | MILFORD | 7135 | — | Yes |
| 508-245 | BRIDGEWTR | 6387 | — | — |
| 508-246 | ORLEANS | 4036 | — | — |
| 508-247 | ORLEANS | 9102 | — | Yes |
| 508-248 | CHARLTON | 9102 | — | — |
| 508-249 | HOPKINTON | 9102 | — | — |
| 508-250 | FRAMINGHAM | 6889 | 2001-10-11 | Yes |
| 508-251 | MARLBORO | 318J | — | Yes |
| 508-252 | REHOBOTH | 9102 | — | Yes |
| 508-253 | FRAMINGHAM | 9102 | — | — |
| 508-254 | MEDWAY | 6387 | — | — |
| 508-255 | ORLEANS | 9102 | — | — |
| 508-256 | BROCKTON | 7229 | — | Yes |
| 508-257 | SIASCONSET | 9102 | — | Yes |
| 508-258 | DENNIS | 829J | — | Yes |
| 508-259 | HOPKINTON | 6387 | — | — |
| 508-260 | BARNSTABLE | 6889 | 2025-04-01 | Yes |
| 508-261 | MANSFIELD | 9102 | — | Yes |
| 508-262 | SEEKONK | 624H | — | Yes |
| 508-263 | MARLBORO | 9102 | 2001-03-06 | Yes |
| 508-264 | NEWBEDFORD | 4036 | — | — |
| 508-265 | ANDOVER | 4036 | — | — |
| 508-266 | WHITINSVL | 9102 | — | Yes |
| 508-267 | HOLDEN | 7229 | — | Yes |
| 508-268 | MILFORD | 6083 | — | — |
| 508-269 | EASTON | 6387 | — | — |
| 508-270 | FRAMINGHAM | 9102 | — | — |
| 508-271 | FRAMINGHAM | 9102 | — | Yes |
| 508-272 | EASTON | 6387 | — | — |
| 508-273 | WAREHAM | 9102 | — | Yes |
| 508-274 | FALMOUTH | 6387 | — | — |
| 508-275 | HOLLISTON | 4018 | — | Yes |
| 508-276 | WAYLAND | 318J | — | Yes |
| 508-277 | MILLBURY | 6387 | — | — |
| 508-278 | UXBRIDGE | 9102 | — | Yes |
| 508-279 | BRIDGEWTR | 9102 | — | Yes |
| 508-280 | HYANNIS | 4036 | — | — |
| 508-281 | MARLBORO | 829J | — | Yes |
| 508-282 | MILFORD | 7619 | — | Yes |
| 508-283 | FRAMINGHAM | 4018 | — | Yes |
| 508-284 | GLOUCESTER | 4036 | — | — |
| 508-285 | NORTON | 9102 | — | — |
| 508-286 | NORTON | 9102 | — | Yes |
| 508-287 | ROCHESTER | 6889 | — | — |
| 508-288 | ASSONET | 9102 | — | — |
| 508-289 | FALMOUTH | 9102 | — | Yes |
| 508-290 | NORTHBORO | 990E | 2021-11-09 | Yes |
| 508-291 | WAREHAM | 9102 | — | — |
| 508-292 | OSTERVILLE | 6889 | — | — |
| 508-293 | HOPKINTON | 7135 | — | Yes |
| 508-294 | HOPKINTON | 5562 | — | Yes |
| 508-295 | WAREHAM | 9102 | — | — |
| 508-296 | CATAUMET | 829J | — | Yes |
| 508-297 | EASTON | 318J | — | Yes |
| 508-298 | FRANKLIN | 829J | — | Yes |
| 508-299 | FALMOUTH | 9102 | — | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.