All assignees
799 prefixes in 920 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 920-500 | OSHKOSH | 490J | 2023-01-13 | Yes |
| 920-501 | GREEN BAY | 6534 | 2019-04-15 | Yes |
| 920-502 | NEENAH | 793K | 2018-10-30 | Yes |
| 920-503 | PULASKI | 793K | 2009-05-11 | Yes |
| 920-504 | SEYMOUR | 793K | 2005-09-21 | Yes |
| 920-505 | WEYAUWEGA | 225C | — | Yes |
| 920-506 | GREENBUSH | 624H | 2021-07-06 | Yes |
| 920-507 | SHERWOOD | 793K | 2006-08-22 | Yes |
| 920-508 | WEYAUWEGA | 9759 | 2005-10-05 | Yes |
| 920-509 | OSHKOSH | 6508 | — | Yes |
| 920-510 | GREEN BAY | 624H | 2019-10-23 | Yes |
| 920-511 | XXXXXXXXXX | MULT | — | — |
| 920-512 | APPLETON | 7229 | 2020-10-15 | Yes |
| 920-513 | APPLETON | 7216 | 2025-10-08 | Yes |
| 920-514 | COLEMAN | 225C | 2021-07-14 | Yes |
| 920-515 | APPLETON | 007F | 2015-06-05 | Yes |
| 920-516 | OCONTO | 793K | — | Yes |
| 920-517 | FONDDU LAC | 6508 | — | — |
| 920-518 | DE PERE | 6508 | 2020-10-20 | Yes |
| 920-519 | BLACKCREEK | 792K | 2007-03-30 | Yes |
| 920-520 | FOX LAKE | 792K | 2007-04-26 | Yes |
| 920-521 | NEENAH | 5489 | — | Yes |
| 920-522 | CHILTON | 5489 | 2002-08-21 | Yes |
| 920-523 | CASCADE | 5489 | 2002-08-21 | Yes |
| 920-524 | BRILLION | 5489 | 2002-08-21 | Yes |
| 920-525 | NICHOLS | 1159 | — | Yes |
| 920-526 | GREENBUSH | 0886 | — | Yes |
| 920-527 | OSHKOSH | 9327 | — | Yes |
| 920-528 | CASCADE | 0886 | — | Yes |
| 920-529 | MANITOWOC | 9748 | 2003-01-13 | — |
| 920-530 | GREEN BAY | 6534 | 2008-03-27 | Yes |
| 920-531 | NEW LONDON | 516C | 2002-06-07 | Yes |
| 920-532 | WRIGHTSTN | 9327 | — | Yes |
| 920-533 | CAMPBELSPT | 0886 | — | Yes |
| 920-534 | ABRAMS | 841H | 2021-10-19 | Yes |
| 920-535 | WASHIGTNIS | 6692 | 2003-02-27 | Yes |
| 920-536 | LUXEMBURG | 6692 | 2003-02-27 | Yes |
| 920-537 | HORICON | 225C | 2021-07-14 | Yes |
| 920-538 | NEW LONDON | 6274 | — | Yes |
| 920-539 | FONDDU LAC | 6508 | — | — |
| 920-540 | APPLETON | 6534 | 2001-02-14 | — |
| 920-541 | JEFFERSON | 7216 | 2002-04-15 | Yes |
| 920-542 | FTATKINSON | 7216 | 2002-04-15 | Yes |
| 920-543 | BURNETT | 7216 | 2002-04-15 | Yes |
| 920-544 | GREEN BAY | 793K | — | Yes |
| 920-545 | WATERTOWN | 5489 | 2002-03-25 | Yes |
| 920-546 | HUSTISFORD | 225C | 2021-07-14 | Yes |
| 920-547 | SHEBOYGAN | 5489 | 2002-03-25 | Yes |
| 920-548 | GREEN BAY | 520K | 2002-05-17 | Yes |
| 920-549 | RANDOLPH | 6274 | 2021-08-12 | Yes |
| 920-550 | SHEBOGNFLS | 5489 | 2005-05-03 | Yes |
| 920-551 | FREMONT | 6508 | 2006-11-30 | Yes |
| 920-552 | OOSTBURG | 5489 | 2002-10-31 | Yes |
| 920-553 | TWO RIVERS | 0148 | — | — |
| 920-554 | APPLETON | 9748 | — | — |
| 920-555 | DIR ASST | MULT | — | — |
| 920-556 | GREEN BAY | 9748 | — | — |
| 920-557 | BEAVER DAM | 7216 | 2010-02-25 | Yes |
| 920-558 | NEENAH | 793K | 2004-01-09 | Yes |
| 920-559 | STURGEONBY | 6274 | — | Yes |
| 920-560 | APPLETON | 520K | 2005-09-02 | Yes |
| 920-561 | WATERLOO | 007F | 2006-04-07 | Yes |
| 920-562 | GREEN BAY | 6534 | 2003-02-18 | — |
| 920-563 | FTATKINSON | 9327 | — | — |
| 920-564 | OOSTBURG | 0886 | — | Yes |
| 920-565 | HOWARDSGRV | 0914 | — | Yes |
| 920-566 | REDGRANITE | 0924 | — | Yes |
| 920-567 | WATERTOWN | 829J | — | Yes |
| 920-568 | FTATKINSON | 9327 | — | — |
| 920-569 | GREEN BAY | 829J | 2002-07-25 | Yes |
| 920-570 | APPLETON | 6508 | — | Yes |
| 920-571 | MANITOWOC | 6529 | — | Yes |
| 920-572 | APPLETON | 6508 | — | Yes |
| 920-573 | OSHKOSH | 6508 | 2003-02-19 | Yes |
| 920-574 | APPLETON | 5489 | — | Yes |
| 920-575 | JUNEAU | 225C | 2021-07-14 | Yes |
| 920-576 | SHEBOYGAN | 9748 | — | — |
| 920-577 | SHEBOYGAN | 9748 | — | — |
| 920-578 | MARKESAN | 6534 | — | Yes |
| 920-579 | FONDDU LAC | 6508 | — | Yes |
| 920-580 | OSHKOSH | 6529 | 2022-04-29 | Yes |
| 920-581 | FONDDU LAC | 829J | 2001-02-08 | Yes |
| 920-582 | WINNECONNE | 9327 | — | Yes |
| 920-583 | OAKFIELD | 0886 | — | Yes |
| 920-584 | MARKESAN | 6534 | — | — |
| 920-585 | APPLETON | 6508 | — | — |
| 920-586 | APPLETON | 9748 | — | — |
| 920-587 | OOSTBURG | 5489 | 2003-02-28 | Yes |
| 920-588 | BRILLION | 6508 | 2003-12-01 | Yes |
| 920-589 | PICKETT | 1159 | — | Yes |
| 920-590 | SURING | 6692 | 2003-02-27 | Yes |
| 920-591 | COLEMAN | 6692 | 2003-02-27 | Yes |
| 920-592 | GREEN BAY | 9327 | — | — |
| 920-593 | GREEN BAY | 7229 | 2003-07-15 | Yes |
| 920-594 | LARSEN | 6508 | 2003-08-08 | Yes |
| 920-595 | SEYMOUR | 6508 | 2003-08-08 | Yes |
| 920-596 | MANAWA | 0905 | — | Yes |
| 920-597 | BRANDON | 6508 | 2003-08-18 | Yes |
| 920-598 | GILLETT | 6692 | 2003-02-27 | Yes |
| 920-599 | LENA | 6692 | 2003-02-27 | 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.