All assignees
799 prefixes in 920 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 920-400 | PLYMOUTH | 6508 | 2008-06-19 | Yes |
| 920-401 | GREEN BAY | 766H | 2018-06-22 | Yes |
| 920-402 | WEYAUWEGA | 6534 | — | Yes |
| 920-403 | DE PERE | 9327 | — | Yes |
| 920-404 | APPLETON | 6508 | 2017-12-01 | Yes |
| 920-405 | GREEN BAY | 9327 | — | — |
| 920-406 | GREEN BAY | 9327 | — | — |
| 920-407 | WEYAUWEGA | 6534 | — | Yes |
| 920-408 | WEYAUWEGA | 6534 | — | Yes |
| 920-409 | JOHNSONCRK | 508J | 2017-10-03 | Yes |
| 920-410 | OSHKOSH | 6274 | — | Yes |
| 920-411 | XXXXXXXXXX | MULT | — | — |
| 920-412 | GREEN BAY | 6274 | — | Yes |
| 920-413 | DE PERE | 6508 | 2018-08-09 | Yes |
| 920-414 | NEENAH | 225C | 2021-10-19 | Yes |
| 920-415 | LTL CHUTE | 007F | 2010-11-04 | Yes |
| 920-416 | APPLETON | 478J | 2020-08-31 | Yes |
| 920-417 | GREEN BAY | 996H | 2020-09-30 | Yes |
| 920-418 | CHILTON | 6274 | — | Yes |
| 920-419 | APPLETON | 6692 | — | — |
| 920-420 | OSHKOSH | 6274 | — | Yes |
| 920-421 | BAILEYSHBR | 6692 | 2002-08-05 | Yes |
| 920-422 | APPLETON | 9759 | 2002-04-30 | — |
| 920-423 | LTL CHUTE | 5489 | — | Yes |
| 920-424 | OSHKOSH | 9327 | — | Yes |
| 920-425 | DE PERE | 6183 | 2002-07-23 | Yes |
| 920-426 | OSHKOSH | 9327 | — | — |
| 920-427 | APPLETON | 6274 | — | Yes |
| 920-428 | APPLETON | 6274 | — | Yes |
| 920-429 | GREEN BAY | 9327 | — | Yes |
| 920-430 | GREEN BAY | 9327 | — | Yes |
| 920-431 | GREEN BAY | 9327 | — | — |
| 920-432 | GREEN BAY | 9327 | — | — |
| 920-433 | GREEN BAY | 9327 | — | — |
| 920-434 | GREEN BAY | 9327 | — | — |
| 920-435 | GREEN BAY | 9327 | — | — |
| 920-436 | GREEN BAY | 9327 | — | — |
| 920-437 | GREEN BAY | 9327 | — | — |
| 920-438 | GREEN BAY | 9327 | — | Yes |
| 920-439 | STOCKBDG | 0954 | — | Yes |
| 920-440 | GREEN BAY | 6630 | — | — |
| 920-441 | APPLETON | 793K | 2018-08-06 | Yes |
| 920-442 | APPLETON | 6508 | 2018-01-25 | Yes |
| 920-443 | REEDSVILLE | 5489 | 2002-08-21 | Yes |
| 920-444 | GREEN BAY | 9327 | — | — |
| 920-445 | GREEN BAY | 9327 | — | Yes |
| 920-446 | FREMONT | 0841 | — | Yes |
| 920-447 | RANDOMLAKE | 5489 | 2002-08-21 | Yes |
| 920-448 | GREEN BAY | 9327 | — | Yes |
| 920-449 | PLYMOUTH | 5489 | 2002-08-21 | Yes |
| 920-450 | APPLETON | 6274 | — | Yes |
| 920-451 | SHEBOYGAN | 9327 | — | — |
| 920-452 | SHEBOYGAN | 9327 | — | — |
| 920-453 | SHEBOYGAN | 9327 | — | Yes |
| 920-454 | APPLETON | 520K | 2016-11-07 | Yes |
| 920-455 | GREEN BAY | 9327 | — | Yes |
| 920-456 | OSHKOSH | 9327 | 2002-09-23 | Yes |
| 920-457 | SHEBOYGAN | 9327 | — | — |
| 920-458 | SHEBOYGAN | 9327 | — | — |
| 920-459 | SHEBOYGAN | 9327 | — | — |
| 920-460 | APPLETON | 6274 | — | Yes |
| 920-461 | GREEN BAY | 6508 | 2012-12-26 | Yes |
| 920-462 | KAUKAUNA | 829J | — | Yes |
| 920-463 | RANDOLPH | 6508 | 2002-03-20 | Yes |
| 920-464 | CHILTON | 6508 | 2002-03-20 | Yes |
| 920-465 | GREEN BAY | 9327 | — | — |
| 920-466 | GREEN BAY | 321J | 2025-07-14 | Yes |
| 920-467 | SHEBOGNFLS | 9327 | — | — |
| 920-468 | GREEN BAY | 9327 | — | — |
| 920-469 | GREEN BAY | 9327 | — | — |
| 920-470 | APPLETON | 6274 | — | Yes |
| 920-471 | GREEN BAY | 5489 | 2002-05-13 | Yes |
| 920-472 | NEW LONDON | 5489 | 2002-05-13 | Yes |
| 920-473 | STURGEONBY | 5489 | 2002-05-13 | Yes |
| 920-474 | MAPLETON | 0886 | — | Yes |
| 920-475 | APPLETON | 6534 | 2003-01-09 | — |
| 920-476 | SHEBOYGAN | 7322 | — | Yes |
| 920-477 | EDEN | 0886 | — | Yes |
| 920-478 | WATERLOO | 0886 | — | Yes |
| 920-479 | OSHKOSH | 6508 | — | Yes |
| 920-480 | GREEN BAY | 515J | 2021-05-03 | Yes |
| 920-481 | PRINCETON | 792K | 2006-11-26 | Yes |
| 920-482 | MANITOWOC | 829J | — | Yes |
| 920-483 | CHILTON | 6508 | 2002-10-10 | Yes |
| 920-484 | FALL RIVER | 0931 | — | Yes |
| 920-485 | HORICON | 9327 | — | Yes |
| 920-486 | NEENAH | 5489 | 2003-02-05 | Yes |
| 920-487 | ALGOMA | 9327 | — | Yes |
| 920-488 | THERESA | 0886 | — | Yes |
| 920-489 | GREEN BAY | 551G | 2013-03-08 | Yes |
| 920-490 | GREEN BAY | 9327 | — | — |
| 920-491 | GREEN BAY | 9327 | — | — |
| 920-492 | GREEN BAY | 9327 | — | Yes |
| 920-493 | STURGEONBY | 6692 | — | — |
| 920-494 | GREEN BAY | 9327 | — | — |
| 920-495 | STURGEONBY | 6692 | — | — |
| 920-496 | GREEN BAY | 9327 | — | — |
| 920-497 | GREEN BAY | 9327 | — | — |
| 920-498 | GREEN BAY | 9327 | — | — |
| 920-499 | GREEN BAY | 9327 | — | — |
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.