All assignees
613 prefixes in 612 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 612-401 | TWINCITIES | 6534 | 2012-09-06 | Yes |
| 612-402 | TWINCITIES | 6701 | 2012-11-09 | Yes |
| 612-403 | TWINCITIES | 5562 | 2018-09-21 | Yes |
| 612-404 | TWINCITIES | 6701 | 2014-03-17 | Yes |
| 612-405 | TWINCITIES | 551G | 2014-06-06 | Yes |
| 612-406 | TWINCITIES | 6534 | 2014-09-02 | Yes |
| 612-407 | TWINCITIES | 5562 | 2014-09-10 | Yes |
| 612-408 | TWINCITIES | 6701 | — | Yes |
| 612-409 | TWINCITIES | 5816 | 2022-04-20 | Yes |
| 612-410 | TWINCITIES | 8405 | 2022-06-09 | Yes |
| 612-411 | XXXXXXXXXX | MULT | — | — |
| 612-412 | TWINCITIES | 7229 | — | Yes |
| 612-413 | TWINCITIES | 6534 | 2014-11-18 | Yes |
| 612-414 | TWINCITIES | 6701 | — | Yes |
| 612-415 | TWINCITIES | 9748 | — | — |
| 612-416 | TWINCITIES | 321J | 2019-12-23 | Yes |
| 612-417 | TWINCITIES | 6534 | 2014-11-18 | Yes |
| 612-418 | TWINCITIES | 5816 | — | — |
| 612-419 | TWINCITIES | 5816 | — | — |
| 612-420 | TWINCITIES | 9631 | 2018-11-21 | Yes |
| 612-421 | TWINCITIES | 184D | 2018-11-30 | Yes |
| 612-422 | TWINCITIES | 6534 | 2018-12-13 | Yes |
| 612-423 | TWINCITIES | 6701 | 2001-01-26 | Yes |
| 612-424 | TWINCITIES | 5256 | 2006-04-20 | Yes |
| 612-425 | TWINCITIES | 6534 | 2015-04-29 | Yes |
| 612-426 | TWINCITIES | 5256 | 2016-02-08 | Yes |
| 612-427 | TWINCITIES | 5816 | 2020-02-04 | Yes |
| 612-428 | TWINCITIES | 980E | 2019-01-14 | Yes |
| 612-429 | TWINCITIES | 425J | 2020-07-09 | Yes |
| 612-430 | TWINCITIES | 5816 | 2014-11-12 | Yes |
| 612-431 | TWINCITIES | 980E | 2019-05-14 | Yes |
| 612-432 | TWINCITIES | 6701 | 2001-01-26 | Yes |
| 612-433 | TWINCITIES | 6701 | 2019-06-24 | Yes |
| 612-434 | TWINCITIES | 5816 | 2016-08-04 | Yes |
| 612-435 | TWINCITIES | 7229 | 2001-01-26 | — |
| 612-436 | TWINCITIES | 4139 | — | — |
| 612-437 | TWINCITIES | 5816 | — | Yes |
| 612-438 | TWINCITIES | 6701 | 2019-06-24 | Yes |
| 612-439 | TWINCITIES | 980E | 2019-07-05 | Yes |
| 612-440 | TWINCITIES | 980E | 2014-11-20 | Yes |
| 612-441 | TWINCITIES | 5816 | 2019-08-28 | Yes |
| 612-442 | TWINCITIES | 5256 | 2015-09-09 | Yes |
| 612-443 | TWINCITIES | 6534 | 2015-05-07 | Yes |
| 612-444 | TWINCITIES | 184D | 2012-11-12 | Yes |
| 612-445 | TWINCITIES | 114J | 2019-09-17 | Yes |
| 612-446 | TWINCITIES | 5256 | 2020-01-17 | Yes |
| 612-447 | TWINCITIES | 6701 | 2020-03-25 | Yes |
| 612-448 | TWINCITIES | 5256 | 2020-04-17 | Yes |
| 612-449 | TWINCITIES | 5816 | 2020-08-19 | Yes |
| 612-450 | TWINCITIES | 6701 | 2020-03-25 | Yes |
| 612-451 | TWINCITIES | 197D | 2020-10-02 | Yes |
| 612-452 | TWINCITIES | 318J | 2020-10-02 | Yes |
| 612-453 | TWINCITIES | 6701 | 2020-03-25 | Yes |
| 612-454 | TWINCITIES | 4139 | 2006-11-26 | Yes |
| 612-455 | TWINCITIES | 4139 | — | Yes |
| 612-456 | TWINCITIES | 6701 | — | Yes |
| 612-457 | TWINCITIES | 6701 | 2020-11-11 | Yes |
| 612-458 | TWINCITIES | 6701 | 2015-09-22 | Yes |
| 612-459 | TWINCITIES | 495J | 2021-03-17 | Yes |
| 612-460 | TWINCITIES | 5312 | 2001-01-30 | Yes |
| 612-461 | TWINCITIES | 6701 | 2021-04-01 | Yes |
| 612-462 | TWINCITIES | 6701 | — | Yes |
| 612-463 | TWINCITIES | 5816 | 2021-06-21 | Yes |
| 612-464 | TWINCITIES | 478J | 2021-06-22 | Yes |
| 612-465 | TWINCITIES | 4139 | 2002-04-18 | Yes |
| 612-466 | TWINCITIES | 9631 | 2001-03-09 | Yes |
| 612-467 | TWINCITIES | 9631 | 2001-07-02 | Yes |
| 612-468 | TWINCITIES | 5816 | 2021-08-27 | Yes |
| 612-469 | TWINCITIES | 6534 | 2016-01-06 | Yes |
| 612-470 | TWINCITIES | 980E | 2014-08-25 | Yes |
| 612-471 | TWINCITIES | 6701 | 2021-09-01 | Yes |
| 612-472 | TWINCITIES | 6701 | 2021-09-01 | Yes |
| 612-473 | TWINCITIES | 184D | 2021-09-10 | Yes |
| 612-474 | TWINCITIES | 980E | 2019-08-28 | Yes |
| 612-475 | TWINCITIES | 5562 | 2015-12-29 | Yes |
| 612-476 | TWINCITIES | 5816 | 2021-11-23 | Yes |
| 612-477 | TWINCITIES | 5816 | 2022-01-07 | Yes |
| 612-478 | TWINCITIES | 6534 | 2015-10-06 | Yes |
| 612-479 | TWINCITIES | 6534 | 2015-10-06 | Yes |
| 612-480 | TWINCITIES | 9748 | — | — |
| 612-481 | TWINCITIES | 6701 | — | — |
| 612-482 | TWINCITIES | 184D | 2022-05-13 | Yes |
| 612-483 | TWINCITIES | 6701 | — | — |
| 612-484 | TWINCITIES | 6701 | 2022-01-19 | Yes |
| 612-485 | TWINCITIES | 8405 | 2022-06-09 | Yes |
| 612-486 | TWINCITIES | 8405 | — | Yes |
| 612-487 | TWINCITIES | 5816 | 2022-07-01 | Yes |
| 612-488 | TWINCITIES | 184D | 2022-07-28 | Yes |
| 612-489 | TWINCITIES | 980E | 2022-09-28 | Yes |
| 612-490 | TWINCITIES | 6701 | — | Yes |
| 612-491 | TWINCITIES | 624H | 2022-08-10 | Yes |
| 612-492 | TWINCITIES | 9631 | 2001-04-11 | Yes |
| 612-493 | TWINCITIES | 6534 | 2022-10-21 | Yes |
| 612-494 | TWINCITIES | 5816 | 2023-01-12 | Yes |
| 612-495 | TWINCITIES | 732J | 2023-02-10 | Yes |
| 612-496 | TWINCITIES | 6534 | 2023-07-25 | Yes |
| 612-497 | TWINCITIES | 6534 | 2023-09-05 | Yes |
| 612-499 | TWINCITIES | 5816 | — | — |
| 612-500 | TWINCITIES | 184D | 2015-03-19 | Yes |
| 612-501 | TWINCITIES | 6701 | — | — |
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.