All assignees
800 prefixes in 610 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 610-500 | PHPHSBZN10 | 6626 | 2002-09-27 | Yes |
| 610-501 | PHPHSBZN25 | 6630 | — | — |
| 610-502 | NORTHAMPTN | 9208 | — | Yes |
| 610-503 | PHPHSBZN26 | 7309 | — | — |
| 610-504 | ALLENTOWN | 6626 | — | — |
| 610-505 | PHPHSBZN30 | 4036 | — | — |
| 610-506 | PHPHSBZN30 | 4036 | — | — |
| 610-507 | READING | 6846 | — | — |
| 610-508 | ALLENTOWN | 9208 | — | Yes |
| 610-509 | ALLENTOWN | 4036 | — | — |
| 610-510 | RIEGELSVL | 3806 | 2001-03-21 | Yes |
| 610-511 | XXXXXXXXXX | MULT | — | — |
| 610-512 | ALLENTOWN | 6810 | — | — |
| 610-513 | PHPHSBZN30 | 4036 | — | — |
| 610-514 | DOWNINGTN | 7229 | — | Yes |
| 610-515 | EASTON | 9208 | — | Yes |
| 610-516 | LENAPE | 3806 | — | Yes |
| 610-517 | PHPHSBZN23 | 4036 | — | — |
| 610-518 | DOWNINGTN | 9208 | — | Yes |
| 610-519 | PHPHSBZN25 | 9208 | — | — |
| 610-520 | PHPHSBZN25 | 9208 | — | — |
| 610-521 | PHPHSBZN14 | 9208 | — | — |
| 610-522 | PHPHSBZN14 | 9208 | — | Yes |
| 610-523 | PHPHSBZN25 | 7434 | — | Yes |
| 610-524 | EXTON | 9208 | — | — |
| 610-525 | PHPHSBZN25 | 9208 | — | — |
| 610-526 | PHPHSBZN25 | 9208 | — | Yes |
| 610-527 | PHPHSBZN25 | 9208 | — | — |
| 610-528 | CENTER PT | 7309 | — | Yes |
| 610-529 | PHPHSBZN24 | 6626 | — | Yes |
| 610-530 | ALLENTOWN | 9208 | — | — |
| 610-531 | PHPHSBZN30 | 7309 | — | — |
| 610-532 | PHPHSBZN14 | 9208 | — | — |
| 610-533 | ALLENTOWN | 4036 | — | — |
| 610-534 | PHPHSBZN14 | 9208 | — | — |
| 610-535 | PHPHSBZN26 | 829J | — | Yes |
| 610-536 | PHPHSBZN21 | 7309 | — | Yes |
| 610-537 | PHPHSBZN14 | 7309 | — | Yes |
| 610-538 | PHPHSBZN23 | 7309 | — | Yes |
| 610-539 | PHPHSBZN30 | 9208 | — | — |
| 610-540 | PHPHSBZN28 | 7434 | — | Yes |
| 610-541 | PHPHSBZN13 | 9208 | — | Yes |
| 610-542 | PHPHSBZN25 | 7309 | — | Yes |
| 610-543 | PHPHSBZN13 | 9208 | — | Yes |
| 610-544 | PHPHSBZN13 | 9208 | — | — |
| 610-545 | PHPHSBZN10 | 547E | — | Yes |
| 610-546 | PHPHSBZN11 | 7309 | — | Yes |
| 610-547 | PHPHSBZN30 | 4036 | — | — |
| 610-548 | PHPHSBZN12 | 7309 | — | Yes |
| 610-549 | PHPHSBZN13 | 7309 | — | Yes |
| 610-550 | PHPHSBZN22 | 5562 | 2002-09-27 | Yes |
| 610-551 | PHPHSBZN30 | 5562 | 2002-09-27 | Yes |
| 610-552 | PHPHSBZN24 | 7229 | — | Yes |
| 610-553 | PHPHSBZN17 | 7309 | — | Yes |
| 610-554 | ALLENTOWN | 4036 | — | — |
| 610-555 | DIR ASST | MULT | — | — |
| 610-556 | UHLERSTOWN | 8320 | 2008-06-11 | Yes |
| 610-557 | PHPHSBZN22 | 7309 | — | Yes |
| 610-558 | PHPHSBZN10 | 9208 | — | — |
| 610-559 | EASTON | 9208 | — | Yes |
| 610-560 | PHPHSBZN28 | 7229 | — | Yes |
| 610-561 | EXTON | 7421 | — | Yes |
| 610-562 | HAMBURG | 9208 | — | — |
| 610-563 | AVONDALE | 6626 | — | Yes |
| 610-564 | CENTER PT | 6626 | — | Yes |
| 610-565 | PHPHSBZN12 | 9208 | — | — |
| 610-566 | PHPHSBZN12 | 9208 | — | — |
| 610-567 | PHPHSBZN31 | 9208 | — | Yes |
| 610-568 | READING | 7309 | — | Yes |
| 610-569 | ROYERSFORD | 7309 | — | Yes |
| 610-570 | BETHLEHEM | 6626 | — | — |
| 610-571 | BATH | 7229 | — | Yes |
| 610-572 | PHPHSBZN21 | 7434 | — | Yes |
| 610-573 | ALLENTOWN | 7421 | — | Yes |
| 610-574 | PHPHSBZN30 | 6392 | — | — |
| 610-575 | BIRDSBORO | 8320 | 2007-05-10 | Yes |
| 610-576 | PHPHSBZN28 | 9208 | — | Yes |
| 610-577 | LEHIGHTON | 829J | — | Yes |
| 610-578 | PHPHSBZN28 | 9208 | — | Yes |
| 610-579 | PHPHSBZN10 | 4007 | — | Yes |
| 610-580 | PHPHSBZN24 | 5562 | — | Yes |
| 610-581 | PHPHSBZN25 | 9208 | — | — |
| 610-582 | BIRDSBORO | 0162 | — | — |
| 610-583 | PHPHSBZN14 | 9208 | — | — |
| 610-584 | CENTER PT | 9208 | — | — |
| 610-585 | PHPHSBZN30 | 6392 | — | — |
| 610-586 | PHPHSBZN14 | 9208 | — | — |
| 610-587 | READING | 6846 | — | Yes |
| 610-588 | BANGOR | 0161 | — | — |
| 610-589 | WOMELSDORF | 0169 | — | Yes |
| 610-590 | CHESTERSPG | 4007 | — | Yes |
| 610-591 | PHPHSBZN14 | 7309 | — | — |
| 610-592 | PHPHSBZN30 | 7229 | — | Yes |
| 610-593 | ATGLEN | 0161 | — | — |
| 610-594 | EXTON | 9208 | — | — |
| 610-595 | PHPHSBZN14 | 9208 | — | Yes |
| 610-596 | CATASAUQUA | 4007 | — | Yes |
| 610-597 | ALLENTOWN | 4036 | — | — |
| 610-598 | BOWMANSTN | 4007 | — | Yes |
| 610-599 | BANGOR | 0161 | — | — |
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.