All assignees
800 prefixes in 610 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 610-400 | COATESVL | 3806 | 2001-03-21 | Yes |
| 610-401 | READING | 7315 | — | Yes |
| 610-402 | ALLENTOWN | 7513 | — | — |
| 610-403 | CATASAUQUA | 8320 | — | Yes |
| 610-404 | BIRDSBORO | 0162 | — | — |
| 610-405 | PHPHSBZN30 | 4036 | — | — |
| 610-406 | READING | 9208 | — | Yes |
| 610-407 | PHPHSBZN28 | 9208 | — | — |
| 610-408 | PHPHSBZN28 | 9208 | — | Yes |
| 610-409 | COLLEGEVL | 9208 | — | Yes |
| 610-410 | CENTER PT | 4007 | — | Yes |
| 610-411 | XXXXXXXXXX | MULT | — | — |
| 610-412 | PUGHTOWN | 4036 | 2018-08-31 | Yes |
| 610-413 | READING | 4036 | — | — |
| 610-414 | POTTSTOWN | 6630 | — | — |
| 610-415 | PHOENIXVL | 9208 | — | Yes |
| 610-416 | PHPHSBZN30 | 4036 | — | — |
| 610-417 | BETHLEHEM | 6392 | — | — |
| 610-418 | W CHESTER | 6630 | — | — |
| 610-419 | BETHLEHEM | 7615 | — | Yes |
| 610-420 | PHPHSBZN30 | 6392 | — | — |
| 610-421 | EMMAUS | 7615 | — | Yes |
| 610-422 | PHOENIXVL | 7309 | — | Yes |
| 610-423 | EXTON | 829J | — | Yes |
| 610-424 | ALLENTOWN | 547E | 2021-03-11 | Yes |
| 610-425 | W CHESTER | 4007 | — | Yes |
| 610-426 | KUTZTOWN | 7309 | — | Yes |
| 610-427 | POTTSTOWN | 7421 | — | Yes |
| 610-428 | BETHLEHEM | 6392 | — | — |
| 610-429 | W CHESTER | 9208 | — | Yes |
| 610-430 | W CHESTER | 9208 | — | — |
| 610-431 | W CHESTER | 9208 | — | — |
| 610-432 | ALLENTOWN | 9208 | — | — |
| 610-433 | ALLENTOWN | 9208 | — | — |
| 610-434 | ALLENTOWN | 9208 | — | — |
| 610-435 | ALLENTOWN | 9208 | — | — |
| 610-436 | W CHESTER | 9208 | — | — |
| 610-437 | ALLENTOWN | 9208 | — | — |
| 610-438 | EASTON | 7615 | — | Yes |
| 610-439 | ALLENTOWN | 9208 | — | Yes |
| 610-440 | NORTHAMPTN | 7615 | — | Yes |
| 610-441 | W CHESTER | 7615 | — | Yes |
| 610-442 | BETHLEHEM | 6392 | — | — |
| 610-443 | CATASAUQUA | 7615 | — | Yes |
| 610-444 | KENNETT SQ | 9208 | — | — |
| 610-445 | BELVIDERE | 508J | 2017-09-18 | Yes |
| 610-446 | PHPHSBZN21 | 9208 | — | — |
| 610-447 | PHPHSBZN11 | 9208 | — | Yes |
| 610-448 | PHPHSBZN28 | 7434 | — | — |
| 610-449 | PHPHSBZN21 | 9208 | — | — |
| 610-450 | EXTON | 4007 | — | Yes |
| 610-451 | READING | 4036 | — | — |
| 610-452 | BANGOR | 8320 | 2002-02-13 | Yes |
| 610-453 | PHPHSBZN24 | 6626 | — | Yes |
| 610-454 | COLLEGEVL | 9208 | — | Yes |
| 610-455 | WESTTOWN | 9208 | — | Yes |
| 610-456 | HELLERTOWN | 7229 | — | Yes |
| 610-457 | PHPHSBZN26 | 6626 | — | — |
| 610-458 | EAGLE | 9208 | — | — |
| 610-459 | PHPHSBZN10 | 9208 | — | — |
| 610-460 | ALLENTOWN | 547E | 2026-02-17 | Yes |
| 610-461 | PHPHSBZN14 | 9208 | — | Yes |
| 610-462 | ALLENTOWN | 4036 | — | — |
| 610-463 | READING | 7421 | — | Yes |
| 610-464 | PHPHSBZN23 | 9748 | — | — |
| 610-465 | CATASAUQUA | 7229 | — | Yes |
| 610-466 | COATESVL | 9208 | — | Yes |
| 610-467 | OXFORD | 422C | 2007-04-18 | Yes |
| 610-468 | READING | 6921 | — | — |
| 610-469 | PUGHTOWN | 9208 | — | Yes |
| 610-470 | AVONDALE | 6626 | — | Yes |
| 610-471 | PHPHSBZN11 | 7229 | — | Yes |
| 610-472 | PHPHSBZN17 | 7309 | 2021-12-08 | Yes |
| 610-473 | BOYERTOWN | 0162 | — | — |
| 610-474 | ROYERSFORD | 784E | — | Yes |
| 610-475 | PHPHSBZN31 | 6630 | — | — |
| 610-476 | PHPHSBZN31 | 6626 | — | Yes |
| 610-477 | ALLENTOWN | 002F | 2018-10-20 | Yes |
| 610-478 | READING | 9208 | — | Yes |
| 610-479 | PHPHSBZN10 | 7421 | — | Yes |
| 610-480 | PHPHSBZN12 | 4007 | — | Yes |
| 610-481 | ALLENTOWN | 9208 | — | — |
| 610-482 | PHOENIXVL | 7229 | — | Yes |
| 610-483 | ALLENTOWN | 6392 | 2020-04-16 | Yes |
| 610-484 | READING | 996H | 2018-10-04 | Yes |
| 610-485 | PHPHSBZN11 | 9208 | — | — |
| 610-486 | MORTONVL | 9208 | — | Yes |
| 610-487 | COLLEGEVL | 7229 | — | Yes |
| 610-488 | BERNVILLE | 0169 | — | Yes |
| 610-489 | COLLEGEVL | 9208 | — | — |
| 610-490 | PHPHSBZN11 | 9208 | — | Yes |
| 610-491 | PHPHSBZN30 | 9208 | — | Yes |
| 610-492 | PHPHSBZN22 | 7434 | — | Yes |
| 610-493 | OLEY | 8320 | 2007-05-10 | Yes |
| 610-494 | PHPHSBZN11 | 9208 | — | — |
| 610-495 | ROYERSFORD | 9208 | — | — |
| 610-496 | PHPHSBZN28 | 6626 | — | Yes |
| 610-497 | PHPHSBZN11 | 9208 | — | — |
| 610-498 | BELVIDERE | 0161 | — | Yes |
| 610-499 | PHPHSBZN11 | 9208 | — | 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.