All assignees
800 prefixes in 646 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 646-400 | NWYRCYZN01 | 4036 | — | Yes |
| 646-401 | NWYRCYZN01 | 4036 | — | Yes |
| 646-402 | NWYRCYZN01 | 4036 | — | Yes |
| 646-403 | NWYRCYZN01 | 4006 | — | Yes |
| 646-404 | NWYRCYZN01 | 4036 | — | Yes |
| 646-405 | NWYRCYZN01 | 7229 | — | Yes |
| 646-406 | NWYRCYZN01 | 4036 | — | Yes |
| 646-407 | NWYRCYZN01 | 4036 | — | Yes |
| 646-408 | NWYRCYZN01 | 6622 | — | Yes |
| 646-409 | NWYRCYZN01 | 4036 | — | Yes |
| 646-410 | NWYRCYZN01 | 4036 | — | Yes |
| 646-411 | XXXXXXXXXX | MULT | — | — |
| 646-412 | NWYRCYZN01 | 7229 | 2012-02-17 | Yes |
| 646-413 | NWYRCYZN01 | 6959 | — | Yes |
| 646-414 | NWYRCYZN01 | 7353 | — | — |
| 646-415 | NWYRCYZN01 | 4036 | 2005-02-28 | Yes |
| 646-416 | NWYRCYZN01 | 4036 | 2005-02-28 | Yes |
| 646-417 | NWYRCYZN01 | 4036 | 2005-02-28 | Yes |
| 646-418 | NWYRCYZN01 | 6622 | — | Yes |
| 646-419 | NWYRCYZN01 | 4036 | 2003-11-14 | Yes |
| 646-420 | NWYRCYZN01 | 4036 | 2003-11-14 | Yes |
| 646-421 | NWYRCYZN01 | 4036 | 2003-11-14 | Yes |
| 646-422 | NWYRCYZN01 | 9104 | — | Yes |
| 646-423 | NWYRCYZN01 | 6622 | 2002-09-10 | Yes |
| 646-424 | NWYRCYZN01 | 9104 | — | Yes |
| 646-425 | NWYRCYZN01 | 6622 | — | Yes |
| 646-426 | NWYRCYZN01 | 9104 | — | Yes |
| 646-427 | NWYRCYZN01 | 6622 | — | Yes |
| 646-428 | NWYRCYZN01 | 7140 | — | Yes |
| 646-429 | NWYRCYZN01 | 9104 | 2005-06-30 | Yes |
| 646-430 | NWYRCYZN01 | 6959 | 2010-04-08 | Yes |
| 646-431 | NWYRCYZN01 | 6622 | 2001-05-04 | — |
| 646-432 | NWYRCYZN01 | 829J | — | — |
| 646-433 | NWYRCYZN01 | 9104 | 2008-05-28 | Yes |
| 646-434 | NWYRCYZN01 | 6622 | 2008-04-30 | Yes |
| 646-435 | NWYRCYZN01 | 4006 | — | — |
| 646-436 | NWYRCYZN01 | 6622 | — | — |
| 646-437 | NWYRCYZN01 | 7229 | — | Yes |
| 646-438 | NWYRCYZN01 | 6959 | — | Yes |
| 646-439 | NWYRCYZN01 | 4006 | 2010-04-22 | Yes |
| 646-440 | NWYRCYZN01 | 4006 | — | Yes |
| 646-441 | NWYRCYZN01 | 7140 | — | Yes |
| 646-442 | NWYRCYZN01 | 9104 | — | Yes |
| 646-443 | NWYRCYZN01 | 7229 | — | Yes |
| 646-444 | NWYRCYZN01 | 4006 | — | Yes |
| 646-445 | NWYRCYZN01 | 9104 | — | Yes |
| 646-446 | NWYRCYZN01 | 9104 | 2008-04-08 | Yes |
| 646-447 | NWYRCYZN01 | 9104 | 2003-07-31 | Yes |
| 646-448 | NWYRCYZN01 | 3751 | 2008-11-06 | Yes |
| 646-449 | NWYRCYZN01 | 829J | 2010-08-26 | Yes |
| 646-450 | NWYRCYZN01 | 997E | 2009-10-06 | Yes |
| 646-451 | NWYRCYZN01 | 829J | 2005-01-21 | Yes |
| 646-452 | NWYRCYZN01 | 4006 | — | — |
| 646-453 | NWYRCYZN01 | 829J | 2004-09-29 | Yes |
| 646-454 | NWYRCYZN01 | 7133 | 2007-05-11 | Yes |
| 646-455 | NWYRCYZN01 | 6959 | — | Yes |
| 646-456 | NWYRCYZN01 | 6622 | — | Yes |
| 646-457 | NWYRCYZN01 | 6959 | — | Yes |
| 646-458 | NWYRCYZN01 | 9104 | — | Yes |
| 646-459 | NWYRCYZN01 | 829J | — | — |
| 646-460 | NWYRCYZN01 | 4036 | 2005-08-08 | Yes |
| 646-461 | NWYRCYZN01 | 4006 | — | Yes |
| 646-462 | NWYRCYZN01 | 4036 | — | Yes |
| 646-463 | NWYRCYZN01 | 6622 | — | Yes |
| 646-464 | NWYRCYZN01 | 4036 | — | Yes |
| 646-465 | NWYRCYZN01 | 4036 | 2005-08-08 | Yes |
| 646-466 | NWYRCYZN01 | 4006 | — | Yes |
| 646-467 | NWYRCYZN01 | 4036 | 2005-08-08 | Yes |
| 646-468 | NWYRCYZN01 | 4036 | 2005-08-08 | Yes |
| 646-469 | NWYRCYZN01 | 4036 | 2005-08-08 | Yes |
| 646-470 | NWYRCYZN01 | 997E | 2010-03-04 | Yes |
| 646-471 | NWYRCYZN01 | 7140 | — | — |
| 646-472 | NWYRCYZN01 | 9104 | — | Yes |
| 646-473 | NWYRCYZN01 | 9104 | — | Yes |
| 646-474 | NWYRCYZN01 | 5562 | 2010-08-02 | Yes |
| 646-475 | NWYRCYZN01 | 4006 | 2005-03-14 | Yes |
| 646-476 | NWYRCYZN01 | 6959 | 2010-03-02 | Yes |
| 646-477 | NWYRCYZN01 | 6959 | 2010-09-14 | Yes |
| 646-478 | NWYRCYZN01 | 4036 | 2006-06-28 | Yes |
| 646-479 | NWYRCYZN01 | 6622 | — | — |
| 646-480 | NWYRCYZN01 | 997E | 2010-09-17 | Yes |
| 646-481 | NWYRCYZN01 | 997E | 2010-03-04 | Yes |
| 646-482 | NWYRCYZN01 | 7140 | 2008-07-29 | Yes |
| 646-483 | NWYRCYZN01 | 6959 | — | — |
| 646-484 | NWYRCYZN01 | 6959 | 2008-11-14 | Yes |
| 646-485 | NWYRCYZN01 | 4006 | — | Yes |
| 646-486 | NWYRCYZN01 | 9104 | — | — |
| 646-487 | NWYRCYZN01 | 9104 | — | — |
| 646-488 | NWYRCYZN01 | 6622 | — | Yes |
| 646-489 | NWYRCYZN01 | 6622 | — | Yes |
| 646-490 | NWYRCYZN01 | 793K | — | Yes |
| 646-491 | NWYRCYZN01 | 4036 | — | Yes |
| 646-492 | NWYRCYZN01 | 6622 | — | Yes |
| 646-493 | NWYRCYZN01 | 997E | 2010-10-05 | Yes |
| 646-494 | NWYRCYZN01 | 997E | 2010-10-05 | Yes |
| 646-495 | NWYRCYZN01 | 7133 | — | Yes |
| 646-496 | NWYRCYZN01 | 6622 | — | Yes |
| 646-497 | NWYRCYZN01 | 9104 | — | — |
| 646-498 | NWYRCYZN01 | 6622 | — | Yes |
| 646-499 | NWYRCYZN01 | 6959 | 2010-10-07 | 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.