All assignees
796 prefixes in 978 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 978-501 | LITTLETON | 6387 | 2001-05-09 | Yes |
| 978-502 | FITCHBURG | 6387 | — | — |
| 978-503 | FITCHBURG | 7135 | — | Yes |
| 978-504 | AMESBURY | 6889 | — | Yes |
| 978-505 | CONCORD | 6387 | 2001-04-24 | Yes |
| 978-506 | LITTLETON | 892D | — | Yes |
| 978-507 | SUDBURY | 9102 | — | Yes |
| 978-509 | LAWRENCE | 5562 | — | Yes |
| 978-510 | W NEWBURY | 318J | — | Yes |
| 978-511 | XXXXXXXXXX | MULT | — | — |
| 978-512 | TYNGSBORO | 5562 | 2002-10-28 | Yes |
| 978-513 | LOWELL | 829J | — | Yes |
| 978-514 | LEOMINSTER | 9102 | — | Yes |
| 978-515 | GLOUCESTER | 268F | — | Yes |
| 978-516 | FITCHBURG | 829J | — | Yes |
| 978-517 | AMESBURY | 7229 | 2001-01-09 | Yes |
| 978-518 | NEWBURYPT | 4018 | — | Yes |
| 978-519 | HAVERHILL | 428H | 2016-03-11 | Yes |
| 978-520 | WILMINGTON | 829J | 2001-05-08 | Yes |
| 978-521 | HAVERHILL | 9102 | — | — |
| 978-522 | BEVERLY | 7229 | — | Yes |
| 978-523 | TOWNSEND | 7135 | — | Yes |
| 978-524 | BEVERLY | 9102 | — | Yes |
| 978-525 | MANCHESTER | 9102 | — | Yes |
| 978-526 | MANCHESTER | 9102 | — | Yes |
| 978-527 | WILMINGTON | 4018 | — | Yes |
| 978-528 | BILLERICA | 829J | — | Yes |
| 978-529 | BEVERLY | 892D | — | Yes |
| 978-530 | PEABODY | 9102 | — | Yes |
| 978-531 | PEABODY | 9102 | — | — |
| 978-532 | PEABODY | 9102 | — | — |
| 978-533 | ANDOVER | 829J | — | Yes |
| 978-534 | LEOMINSTER | 9102 | — | — |
| 978-535 | PEABODY | 9102 | — | — |
| 978-536 | PEABODY | 9102 | — | Yes |
| 978-537 | LEOMINSTER | 9102 | — | — |
| 978-538 | PEABODY | 9102 | — | — |
| 978-539 | DANVERS | 7135 | — | Yes |
| 978-540 | LITTLETON | 7229 | — | Yes |
| 978-541 | ATHOL | 7421 | 2012-06-11 | Yes |
| 978-542 | SALEM | 9102 | — | Yes |
| 978-543 | NO READING | 268F | — | Yes |
| 978-544 | ORANGE | 9102 | — | Yes |
| 978-545 | BILLERICA | 990E | — | Yes |
| 978-546 | ROCKPORT | 9102 | — | Yes |
| 978-547 | BILLERICA | 990E | — | Yes |
| 978-548 | PEABODY | 7135 | — | Yes |
| 978-549 | LEOMINSTER | 4036 | — | — |
| 978-550 | — | — | ||
| 978-551 | LOWELL | 9102 | — | Yes |
| 978-552 | LAWRENCE | 7135 | — | Yes |
| 978-553 | HUDSON | 7229 | 2013-07-16 | — |
| 978-554 | XXXXXXXXXX | 9102 | — | — |
| 978-555 | DIR ASST | MULT | — | — |
| 978-556 | HAVERHILL | 9102 | — | — |
| 978-557 | LAWRENCE | 9102 | — | — |
| 978-558 | BOLTON | 4018 | — | Yes |
| 978-559 | GLOUCESTER | 7135 | — | Yes |
| 978-560 | DANVERS | 7229 | — | Yes |
| 978-561 | TOPSFIELD | 318J | — | Yes |
| 978-562 | HUDSON | 9102 | — | — |
| 978-563 | STERLING | 318J | — | Yes |
| 978-564 | DANVERS | 7229 | 2001-01-09 | Yes |
| 978-565 | SALEM | 7229 | — | Yes |
| 978-566 | LAWRENCE | 508J | — | Yes |
| 978-567 | HUDSON | 9102 | — | Yes |
| 978-568 | HUDSON | 9102 | — | Yes |
| 978-569 | LOWELL | 829J | — | Yes |
| 978-570 | WILMINGTON | 7135 | — | Yes |
| 978-571 | WESTMINSTR | 829J | — | Yes |
| 978-572 | NEWBURYPT | 990E | — | Yes |
| 978-573 | PEABODY | 9102 | — | Yes |
| 978-574 | ATHOLFKLN | 4018 | — | Yes |
| 978-575 | ATHOLFKLN | 9102 | — | Yes |
| 978-576 | CONCORD | 990E | — | Yes |
| 978-577 | WESTFORD | 829J | — | Yes |
| 978-578 | BEVERLY | 6387 | 2002-04-09 | Yes |
| 978-579 | SUDBURY | 9102 | — | Yes |
| 978-580 | CONCORD | 5562 | 2001-05-01 | Yes |
| 978-581 | ORANGE | 892D | 2016-03-23 | Yes |
| 978-582 | LUNENBURG | 9102 | — | Yes |
| 978-583 | SALEM | 6083 | — | — |
| 978-584 | BILLERICA | 829J | 2001-05-08 | Yes |
| 978-585 | CONCORD | 990E | — | Yes |
| 978-586 | BOLTON | 829J | 2001-05-08 | Yes |
| 978-587 | PEABODY | 4018 | — | Yes |
| 978-588 | AYER | 9102 | 2016-07-01 | Yes |
| 978-589 | WESTFORD | 9102 | — | Yes |
| 978-590 | LAWRENCE | 5562 | — | Yes |
| 978-591 | CONCORD | 990E | — | Yes |
| 978-592 | BERLIN | 892D | — | Yes |
| 978-593 | ATHOLFKLN | 990E | — | Yes |
| 978-594 | SALEM | 318J | — | Yes |
| 978-595 | PEABODY | 4018 | — | Yes |
| 978-596 | LOWELL | 829J | 2001-03-19 | Yes |
| 978-597 | TOWNSEND | 9102 | — | Yes |
| 978-598 | CLINTON | 829J | 2001-05-08 | Yes |
| 978-599 | SALEM | 829J | — | Yes |
| 978-600 | BILLERICA | 7229 | 2001-03-19 | Yes |
| 978-601 | LAWRENCE | 5562 | — | 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.