All assignees
703 prefixes in 661 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 661-500 | TAFT | 6006 | 2023-09-21 | Yes |
| 661-501 | BKFD SOUTH | 045L | 2018-07-17 | Yes |
| 661-502 | SNCA NHCS | 899D | 2020-05-27 | Yes |
| 661-503 | PLDL PLDL | 6529 | 2020-07-28 | Yes |
| 661-504 | PLDL PLDL | 6010 | 2020-08-04 | Yes |
| 661-505 | SNCA NHCS | 8826 | 2001-05-01 | Yes |
| 661-506 | PLDL PLDL | 6010 | 2020-09-08 | Yes |
| 661-507 | PLDL PLDL | 6010 | 2023-09-26 | Yes |
| 661-508 | PLDL PLDL | 6010 | 2021-04-29 | Yes |
| 661-509 | BKFD SOUTH | 981E | 2020-10-05 | Yes |
| 661-510 | SNCA NHCS | 899D | — | Yes |
| 661-511 | XXXXXXXXXX | MULT | — | — |
| 661-512 | PLDL AGDL | 899D | 2020-09-23 | Yes |
| 661-513 | SNCA SGCC | 9740 | — | Yes |
| 661-514 | MCFARLAND | 6010 | 2020-09-17 | Yes |
| 661-515 | HI VISTA | 981E | 2018-09-25 | Yes |
| 661-516 | BKFD MAIN | 321J | 2020-09-30 | Yes |
| 661-517 | SNCA SGCC | 649C | 2023-06-27 | Yes |
| 661-518 | TEHACHAPI | 073H | 2021-02-02 | Yes |
| 661-519 | ARVIN | 6529 | 2021-06-30 | Yes |
| 661-520 | BKFD MAIN | 373F | 2014-05-07 | Yes |
| 661-521 | PLDL PLDL | 6010 | 2021-07-29 | Yes |
| 661-522 | LANCASTER | 981E | 2015-02-09 | Yes |
| 661-523 | SNCA SGCC | 6010 | 2014-10-08 | Yes |
| 661-524 | LANCASTER | 8826 | 2008-05-27 | Yes |
| 661-525 | BKFD NORTH | 8826 | 2014-11-25 | Yes |
| 661-526 | PLDL PLDL | 516C | 2006-10-24 | Yes |
| 661-527 | BKFD SOUTH | 981E | 2015-04-14 | Yes |
| 661-528 | ROSAMOND | 8826 | — | Yes |
| 661-529 | BKFD SOUTH | 649C | — | Yes |
| 661-530 | — | — | ||
| 661-531 | ARVIN | 6529 | 2021-10-28 | Yes |
| 661-532 | BIG BUTTE | 515J | — | Yes |
| 661-533 | PLDL PLDL | 9740 | — | Yes |
| 661-534 | DELANO | 508J | 2015-03-04 | Yes |
| 661-535 | BKFD NORTH | 6010 | 2015-07-16 | Yes |
| 661-536 | GLENNVILLE | 4420 | — | Yes |
| 661-537 | PLDL PLDL | 9740 | — | Yes |
| 661-538 | PLDL PLDL | 9740 | — | — |
| 661-539 | MCFARLAND | 624H | 2021-11-12 | Yes |
| 661-540 | PLDL PLDL | 9740 | — | Yes |
| 661-541 | BKFD MAIN | 6006 | — | Yes |
| 661-542 | SNCA SGCC | 649C | — | Yes |
| 661-543 | MCFARLAND | 6010 | 2015-08-04 | Yes |
| 661-544 | PLDL PLDL | 899D | 2010-01-14 | Yes |
| 661-545 | DELANO | 6529 | 2020-10-16 | Yes |
| 661-546 | BKFD MAIN | 508J | 2015-02-16 | Yes |
| 661-547 | LANCASTER | 6529 | — | Yes |
| 661-548 | CLFRNHTSPG | 4420 | — | Yes |
| 661-549 | BKFD MAIN | 6010 | 2001-07-12 | — |
| 661-550 | BIG BUTTE | 981E | 2021-09-22 | Yes |
| 661-551 | BERENDMESA | 649C | — | Yes |
| 661-552 | EARLIMART | 515J | — | Yes |
| 661-553 | DELANO | 981E | 2015-04-28 | Yes |
| 661-554 | SNCA NHCS | 649C | — | — |
| 661-555 | DIR ASST | MULT | — | — |
| 661-556 | BKFD SOUTH | 6006 | 2014-03-21 | Yes |
| 661-557 | ARVIN | 6006 | — | Yes |
| 661-558 | BKFD MAIN | 649C | — | Yes |
| 661-559 | — | — | ||
| 661-560 | WASCO | 506J | — | Yes |
| 661-561 | DELANO | 649C | 2020-03-27 | Yes |
| 661-562 | — | — | ||
| 661-563 | BKFD MAIN | 5562 | 2015-07-28 | Yes |
| 661-564 | BKFD SOUTH | 7128 | 2015-04-21 | Yes |
| 661-565 | BKFD MAIN | 7139 | — | Yes |
| 661-566 | PLDL PLDL | 6529 | 2019-03-19 | Yes |
| 661-567 | BKFD MAIN | 981E | 2015-04-27 | Yes |
| 661-568 | SNCA NHCS | 7139 | — | Yes |
| 661-569 | BKFD MAIN | 6529 | 2021-12-10 | Yes |
| 661-570 | BKFD SOUTH | 6006 | 2022-03-09 | Yes |
| 661-571 | LANCASTER | 6006 | 2022-04-12 | Yes |
| 661-572 | PLDL PLDL | 9740 | — | — |
| 661-573 | BKFD MAIN | 6010 | 2015-07-16 | Yes |
| 661-574 | PLDL PLDL | 9740 | — | Yes |
| 661-575 | PLDL PLDL | 9740 | — | Yes |
| 661-576 | PLDL PLDL | 6529 | 2015-08-03 | Yes |
| 661-577 | TAFT | 5562 | — | Yes |
| 661-578 | BKFD MAIN | 8826 | 2006-01-24 | Yes |
| 661-579 | LANCASTER | 649C | 2008-05-28 | Yes |
| 661-580 | PLDL PLDL | 6010 | 2021-09-02 | Yes |
| 661-581 | PLDL PLDL | 7139 | 2021-11-12 | Yes |
| 661-582 | LANCASTER | 6010 | 2015-10-21 | Yes |
| 661-583 | PLDL PLDL | 6010 | 2015-11-13 | Yes |
| 661-584 | MOJAVE | 8826 | — | Yes |
| 661-585 | PLDL PLDL | 6010 | 2015-12-04 | Yes |
| 661-586 | DELANO | 6010 | — | — |
| 661-587 | BKFD NORTH | 9740 | — | — |
| 661-588 | BKFD NORTH | 9740 | — | — |
| 661-589 | BKFD NORTH | 9740 | — | — |
| 661-590 | WASCO | 671J | 2022-06-29 | Yes |
| 661-591 | GLENNVILLE | 8826 | — | Yes |
| 661-592 | SNCA SGCC | 899D | 2015-06-09 | Yes |
| 661-593 | SNCA NHCS | 6529 | 2016-07-15 | Yes |
| 661-594 | SHAFTER | 6529 | 2022-09-02 | Yes |
| 661-595 | BKFD MAIN | 671J | 2022-05-26 | Yes |
| 661-596 | BKFD MAIN | 732J | — | Yes |
| 661-597 | MOJAVE | 6006 | 2022-10-10 | Yes |
| 661-598 | PLDL PLDL | 6010 | 2022-10-21 | Yes |
| 661-599 | BKFD SOUTH | 6006 | — | — |
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.