All assignees
795 prefixes in 781 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 781-300 | RANDOLPH | 7229 | 2001-02-23 | Yes |
| 781-301 | LEXINGTON | 7229 | — | Yes |
| 781-302 | CANTON | 7135 | — | Yes |
| 781-303 | BRAINTREE | 7229 | — | Yes |
| 781-304 | WELLESLEY | 7229 | — | Yes |
| 781-305 | WOBURN | 7229 | — | Yes |
| 781-306 | MEDFORD | 9102 | — | — |
| 781-307 | SAUGUS | 7229 | — | Yes |
| 781-308 | RANDOLPH | 6889 | — | Yes |
| 781-309 | LYNN | 7229 | — | Yes |
| 781-310 | DEDHAM | 9102 | 2013-01-22 | Yes |
| 781-311 | XXXXXXXXXX | MULT | — | — |
| 781-312 | HANOVER | 4018 | — | Yes |
| 781-313 | BURLINGTON | 7229 | — | Yes |
| 781-314 | WALTHAM | 9102 | — | Yes |
| 781-315 | READING | 7619 | 2001-05-30 | Yes |
| 781-316 | ARLINGTON | 7619 | — | Yes |
| 781-317 | WALTHAM | 990E | — | Yes |
| 781-318 | STOUGHTON | 7229 | — | Yes |
| 781-319 | MARSHFIELD | 9102 | — | Yes |
| 781-320 | DEDHAM | 9102 | — | Yes |
| 781-321 | MALDEN | 9102 | — | — |
| 781-322 | MALDEN | 9102 | — | — |
| 781-323 | LEXINGTON | 4018 | — | Yes |
| 781-324 | MALDEN | 9102 | — | — |
| 781-325 | LEXINGTON | 4018 | — | Yes |
| 781-326 | DEDHAM | 9102 | — | — |
| 781-327 | SHARON | 268F | — | Yes |
| 781-328 | BURLINGTON | 4018 | — | Yes |
| 781-329 | DEDHAM | 9102 | — | — |
| 781-330 | WALTHAM | 5562 | 2002-07-30 | Yes |
| 781-331 | WEYMOUTH | 9102 | — | — |
| 781-332 | CANTON | 829J | — | Yes |
| 781-333 | MALDEN | 829J | — | Yes |
| 781-334 | LYNNFIELD | 9102 | — | Yes |
| 781-335 | WEYMOUTH | 9102 | — | — |
| 781-336 | KINGSTON | 4018 | — | Yes |
| 781-337 | WEYMOUTH | 9102 | — | — |
| 781-338 | MALDEN | 9102 | — | Yes |
| 781-340 | WEYMOUTH | 9102 | — | — |
| 781-341 | STOUGHTON | 9102 | — | Yes |
| 781-342 | LYNNFIELD | 9102 | — | Yes |
| 781-343 | NEEDHAM | 4018 | — | Yes |
| 781-344 | STOUGHTON | 9102 | — | — |
| 781-345 | BURLINGTON | 7229 | 2001-12-15 | — |
| 781-346 | LYNN | 829J | — | Yes |
| 781-347 | ROCKLAND | 7229 | — | Yes |
| 781-348 | BRAINTREE | 9102 | — | Yes |
| 781-349 | NORWOOD | 829J | — | Yes |
| 781-350 | MEDFORD | 7135 | — | Yes |
| 781-351 | ROCKLAND | 5562 | 2002-10-25 | Yes |
| 781-352 | NORWOOD | 829J | 2001-01-16 | Yes |
| 781-353 | BRAINTREE | 4018 | — | Yes |
| 781-354 | LEXINGTON | 6889 | — | — |
| 781-355 | DEDHAM | 892D | — | Yes |
| 781-356 | BRAINTREE | 9102 | — | — |
| 781-357 | LEXINGTON | 7229 | — | Yes |
| 781-358 | WINCHESTER | 7229 | — | Yes |
| 781-359 | BURLINGTON | 9102 | — | Yes |
| 781-360 | WAKEFIELD | 6083 | — | — |
| 781-361 | KINGSTON | 7619 | — | Yes |
| 781-362 | BURLINGTON | 829J | 2001-02-23 | Yes |
| 781-363 | CANTON | 6889 | 2001-02-23 | Yes |
| 781-364 | CANTON | 7135 | — | Yes |
| 781-365 | BURLINGTON | 318J | — | Yes |
| 781-366 | DEDHAM | 4036 | — | Yes |
| 781-367 | WOBURN | 5562 | — | Yes |
| 781-368 | WINCHESTER | 9102 | — | Yes |
| 781-369 | WINCHESTER | 318J | — | Yes |
| 781-370 | WALTHAM | 7135 | — | — |
| 781-371 | WELLESLEY | 7229 | — | Yes |
| 781-372 | LEXINGTON | 9102 | — | — |
| 781-373 | WALTHAM | 318J | — | Yes |
| 781-374 | HINGHAM | 318J | — | Yes |
| 781-375 | DEDHAM | 7135 | — | Yes |
| 781-376 | WOBURN | 9102 | — | — |
| 781-377 | LEXINGTON | 9102 | — | Yes |
| 781-378 | SCITUATE | 318J | — | Yes |
| 781-379 | DEDHAM | 6387 | 2017-12-08 | Yes |
| 781-380 | BRAINTREE | 9102 | — | Yes |
| 781-381 | DEDHAM | 7619 | — | Yes |
| 781-382 | LEXINGTON | 6387 | — | Yes |
| 781-383 | COHASSET | 9102 | — | Yes |
| 781-384 | ROCKLAND | 268F | 2001-05-10 | Yes |
| 781-385 | HINGHAM | 5562 | — | Yes |
| 781-386 | WALTHAM | 9102 | — | Yes |
| 781-387 | BURLINGTON | 9748 | — | — |
| 781-388 | MALDEN | 9102 | — | — |
| 781-389 | WINCHESTER | 5562 | — | Yes |
| 781-390 | RANDOLPH | 4018 | 2001-01-12 | Yes |
| 781-391 | MEDFORD | 9102 | — | — |
| 781-392 | WALTHAM | 9102 | — | Yes |
| 781-393 | MEDFORD | 9102 | — | — |
| 781-394 | BRAINTREE | 7229 | — | Yes |
| 781-395 | MEDFORD | 9102 | — | — |
| 781-396 | MEDFORD | 9102 | — | — |
| 781-397 | MALDEN | 9102 | — | Yes |
| 781-398 | WALTHAM | 9102 | — | — |
| 781-399 | MALDEN | 4018 | — | Yes |
| 781-400 | NEEDHAM | 318J | — | 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.