All assignees
795 prefixes in 781 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 781-502 | MALDEN | 7229 | — | Yes |
| 781-503 | WOBURN | 7229 | — | Yes |
| 781-504 | WOBURN | 5562 | 2001-02-22 | Yes |
| 781-505 | BURLINGTON | 9102 | — | Yes |
| 781-506 | RANDOLPH | 7229 | — | Yes |
| 781-507 | STONEHAM | 4018 | — | Yes |
| 781-509 | READING | 9102 | — | Yes |
| 781-510 | RANDOLPH | 6889 | 2002-10-25 | Yes |
| 781-511 | XXXXXXXXXX | MULT | — | — |
| 781-512 | LINCOLN | 7229 | — | Yes |
| 781-513 | LYNN | 6889 | 2013-10-17 | Yes |
| 781-514 | NEEDHAM | 829J | 2001-02-23 | Yes |
| 781-515 | LEXINGTON | 7229 | — | Yes |
| 781-516 | WALTHAM | 990E | — | Yes |
| 781-517 | MELROSE | 7229 | — | Yes |
| 781-518 | MEDFORD | 4018 | 2001-02-23 | Yes |
| 781-519 | BRAINTREE | 4018 | — | Yes |
| 781-520 | SAUGUS | 6889 | 2002-10-25 | Yes |
| 781-521 | SAUGUS | 829J | 2001-08-21 | Yes |
| 781-522 | WALTHAM | 9102 | — | — |
| 781-523 | WHITMAN | 318J | — | Yes |
| 781-524 | WHITMAN | 892D | — | Yes |
| 781-525 | NEEDHAM | 6387 | 2018-01-15 | Yes |
| 781-526 | MEDFORD | 6889 | — | — |
| 781-527 | COHASSET | 7135 | — | Yes |
| 781-528 | WOBURN | 829J | — | Yes |
| 781-529 | WALTHAM | 9102 | — | — |
| 781-530 | WALTHAM | 7135 | — | Yes |
| 781-531 | NEEDHAM | 6387 | 2018-03-15 | Yes |
| 781-532 | LEXINGTON | 990E | — | — |
| 781-533 | LEXINGTON | 9102 | — | Yes |
| 781-534 | WEYMOUTH | 7135 | — | Yes |
| 781-535 | BRAINTREE | 829J | — | Yes |
| 781-536 | MARSHFIELD | 990E | — | Yes |
| 781-537 | WOBURN | 7135 | — | Yes |
| 781-538 | LEXINGTON | 4018 | — | Yes |
| 781-539 | MEDFORD | 7619 | — | Yes |
| 781-540 | NEEDHAM | 5562 | 2002-10-28 | Yes |
| 781-541 | LEXINGTON | 829J | — | Yes |
| 781-542 | WEYMOUTH | 829J | 2015-08-03 | Yes |
| 781-543 | WALTHAM | 6083 | — | — |
| 781-544 | SCITUATE | 9102 | — | Yes |
| 781-545 | SCITUATE | 9102 | — | — |
| 781-546 | SCITUATE | 7619 | — | Yes |
| 781-547 | WALTHAM | 829J | — | Yes |
| 781-548 | WAKEFIELD | 5562 | 2002-10-28 | Yes |
| 781-549 | REVERE | 4018 | — | Yes |
| 781-550 | — | — | ||
| 781-551 | NORWOOD | 9102 | — | — |
| 781-552 | BURLINGTON | 5562 | — | Yes |
| 781-553 | LEXINGTON | 990E | — | Yes |
| 781-554 | XXXXXXXXXX | 9102 | — | — |
| 781-555 | DIR ASST | MULT | — | — |
| 781-556 | HINGHAM | 7135 | — | Yes |
| 781-557 | WAKEFIELD | 7135 | — | Yes |
| 781-558 | SAUGUS | 318J | — | Yes |
| 781-559 | NEEDHAM | 7619 | — | Yes |
| 781-560 | REVERE | 7135 | — | Yes |
| 781-561 | NORWELL | 6387 | 2001-01-15 | Yes |
| 781-562 | CANTON | 318J | — | Yes |
| 781-563 | BRYANTVL | 6387 | 2014-04-02 | Yes |
| 781-564 | BURLINGTON | 9102 | — | Yes |
| 781-565 | BURLINGTON | 7135 | — | Yes |
| 781-566 | MARSHFIELD | 268F | 2001-03-19 | Yes |
| 781-567 | WAKEFIELD | 9102 | — | — |
| 781-568 | STONEHAM | 5562 | 2002-10-28 | Yes |
| 781-569 | WOBURN | 829J | — | Yes |
| 781-570 | WINCHESTER | 5562 | 2002-10-28 | Yes |
| 781-571 | CANTON | 6889 | — | Yes |
| 781-572 | STONEHAM | 7619 | — | Yes |
| 781-573 | STOUGHTON | 829J | — | Yes |
| 781-574 | ARLINGTON | 7229 | — | Yes |
| 781-575 | CANTON | 9102 | — | Yes |
| 781-576 | MARBLEHEAD | 5562 | 2002-10-28 | Yes |
| 781-577 | WALTHAM | 4018 | — | Yes |
| 781-578 | BRYANTVL | 6083 | — | — |
| 781-579 | BRAINTREE | 6889 | — | Yes |
| 781-580 | LYNNFIELD | 5562 | — | Yes |
| 781-581 | LYNN | 9102 | — | — |
| 781-582 | KINGSTON | 9102 | — | — |
| 781-583 | ARLINGTON | 4018 | — | Yes |
| 781-584 | LYNN | 7135 | — | Yes |
| 781-585 | KINGSTON | 9102 | — | — |
| 781-586 | LYNN | 9102 | — | — |
| 781-587 | WAKEFIELD | 318J | — | Yes |
| 781-588 | KINGSTON | 6889 | — | Yes |
| 781-589 | WINCHESTER | 5562 | — | Yes |
| 781-590 | MELROSE | 892D | — | Yes |
| 781-591 | WELLESLEY | 5562 | 2002-10-28 | Yes |
| 781-592 | LYNN | 9102 | — | — |
| 781-593 | LYNN | 9102 | — | — |
| 781-594 | LYNN | 7135 | — | — |
| 781-595 | LYNN | 9102 | — | — |
| 781-596 | LYNN | 9102 | — | — |
| 781-597 | LEXINGTON | 990E | — | Yes |
| 781-598 | LYNN | 9102 | — | — |
| 781-599 | LYNN | 9102 | — | — |
| 781-600 | BRAINTREE | 6889 | 2014-09-12 | Yes |
| 781-601 | BURLINGTON | 9102 | — | Yes |
| 781-602 | BRAINTREE | 829J | — | 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.