All assignees
800 prefixes in 617 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 617-400 | ROXBURY | 6083 | — | — |
| 617-401 | CAMBRIDGE | 4018 | — | Yes |
| 617-402 | WATERTOWN | 268F | — | Yes |
| 617-403 | BRIGHTON | 9748 | — | — |
| 617-404 | QUINCY | 892D | 2017-12-28 | Yes |
| 617-405 | QUINCY | 7229 | — | Yes |
| 617-406 | BOSTON | 7135 | — | Yes |
| 617-407 | BOSTON | 6889 | — | — |
| 617-408 | HYDE PARK | 9102 | — | Yes |
| 617-409 | CHELSEA | 829J | 2001-02-16 | Yes |
| 617-410 | EVERETT | 829J | 2001-02-16 | Yes |
| 617-411 | XXXXXXXXXX | MULT | — | — |
| 617-412 | BOSTON | 6889 | 2005-04-11 | Yes |
| 617-413 | BOSTON | 6387 | — | — |
| 617-414 | BOSTON | 9102 | — | — |
| 617-415 | BRIGHTON | 7229 | — | Yes |
| 617-416 | BOSTON | 4036 | 2001-02-16 | — |
| 617-417 | CAMBRIDGE | 4036 | 2001-02-16 | Yes |
| 617-418 | EASTBOSTON | 7229 | — | Yes |
| 617-419 | BOSTON | 990E | 2009-10-16 | Yes |
| 617-420 | EVERETT | 7229 | — | Yes |
| 617-421 | BOSTON | 9102 | — | — |
| 617-422 | BOSTON | 9102 | — | Yes |
| 617-423 | BOSTON | 9102 | — | — |
| 617-424 | BOSTON | 9102 | — | — |
| 617-425 | BOSTON | 9102 | — | — |
| 617-426 | BOSTON | 9102 | — | — |
| 617-427 | ROXBURY | 9102 | — | — |
| 617-428 | BOSTON | 9102 | — | — |
| 617-429 | BOSTON | 6387 | — | — |
| 617-430 | CAMBRIDGE | 990E | — | Yes |
| 617-431 | NEWTON | 7135 | — | Yes |
| 617-432 | BROOKLINE | 9102 | — | — |
| 617-433 | MILTON | 7135 | — | Yes |
| 617-434 | BOSTON | 9102 | — | — |
| 617-435 | JAMAICA PL | 4036 | — | — |
| 617-436 | DORCHESTER | 9102 | — | — |
| 617-437 | BOSTON | 9102 | — | — |
| 617-438 | BOSTON | 5562 | — | Yes |
| 617-439 | BOSTON | 9102 | — | — |
| 617-440 | SOMERVILLE | 829J | — | Yes |
| 617-441 | CAMBRIDGE | 9102 | — | — |
| 617-442 | ROXBURY | 9102 | — | — |
| 617-443 | BOSTON | 9102 | — | — |
| 617-444 | CAMBRIDGE | 9102 | — | Yes |
| 617-445 | ROXBURY | 9102 | — | — |
| 617-446 | DORCHESTER | 7229 | — | Yes |
| 617-447 | BOSTON | 6387 | 2004-06-11 | Yes |
| 617-448 | BOSTON | 6387 | — | — |
| 617-449 | BOSTON | 7229 | — | Yes |
| 617-450 | BOSTON | 9102 | — | — |
| 617-451 | BOSTON | 9102 | — | — |
| 617-452 | CAMBRIDGE | 9102 | — | — |
| 617-453 | CAMBRIDGE | 990E | — | Yes |
| 617-454 | NEWTON | 7135 | — | Yes |
| 617-455 | EASTBOSTON | 829J | — | Yes |
| 617-456 | BOSTON | 829J | — | — |
| 617-457 | BOSTON | 9102 | — | Yes |
| 617-458 | WATERTOWN | 5562 | 2002-07-31 | Yes |
| 617-459 | BOSTON | 6889 | 2004-11-23 | Yes |
| 617-460 | CAMBRIDGE | 4036 | — | Yes |
| 617-461 | CHELSEA | 5562 | — | Yes |
| 617-462 | DEDHAM | 4036 | — | — |
| 617-463 | SO BOSTON | 9102 | — | Yes |
| 617-464 | SO BOSTON | 9102 | — | Yes |
| 617-465 | CAMBRIDGE | 990E | — | Yes |
| 617-466 | CHELSEA | 318J | — | Yes |
| 617-467 | NEWTON | 829J | — | Yes |
| 617-468 | CAMBRIDGE | 990E | — | Yes |
| 617-469 | JAMAICA PL | 9102 | — | — |
| 617-470 | BOSTON | 4036 | — | — |
| 617-471 | QUINCY | 9102 | — | — |
| 617-472 | QUINCY | 9102 | — | — |
| 617-473 | NEWTON | 9102 | — | — |
| 617-474 | DORCHESTER | 9102 | — | Yes |
| 617-475 | CAMBRIDGE | 7229 | — | Yes |
| 617-476 | BOSTON | 7135 | — | — |
| 617-477 | JAMAICA PL | 7229 | 2001-12-06 | Yes |
| 617-478 | BOSTON | 9102 | — | — |
| 617-479 | QUINCY | 9102 | — | — |
| 617-480 | BOSTON | 4036 | — | — |
| 617-481 | QUINCY | 318J | — | Yes |
| 617-482 | BOSTON | 9102 | — | — |
| 617-483 | QUINCY | 9102 | — | Yes |
| 617-484 | BELMONT | 9102 | — | — |
| 617-485 | NEWTON | 892D | — | Yes |
| 617-486 | BELMONT | 9102 | — | — |
| 617-487 | BROOKLINE | 7135 | — | Yes |
| 617-488 | BOSTON | 7135 | — | Yes |
| 617-489 | BELMONT | 9102 | — | — |
| 617-490 | BOSTON | 9102 | — | Yes |
| 617-491 | CAMBRIDGE | 9102 | — | — |
| 617-492 | CAMBRIDGE | 9102 | — | — |
| 617-493 | CAMBRIDGE | 9102 | — | — |
| 617-494 | CAMBRIDGE | 9102 | — | — |
| 617-495 | CAMBRIDGE | 9102 | — | — |
| 617-496 | CAMBRIDGE | 9102 | — | — |
| 617-497 | CAMBRIDGE | 9102 | — | — |
| 617-498 | CAMBRIDGE | 9102 | — | — |
| 617-499 | CAMBRIDGE | 9102 | — | — |
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.