All assignees
560 prefixes in 616 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 616-402 | GRANDHAVEN | 6003 | — | — |
| 616-403 | ZEELAND | 6003 | — | — |
| 616-404 | CASNOVIA | 543C | 2014-10-06 | Yes |
| 616-405 | HOLLAND | 2964 | — | Yes |
| 616-406 | GRAND RPDS | 9323 | — | Yes |
| 616-407 | GRAND RPDS | 6003 | 2024-03-07 | Yes |
| 616-408 | GRAND RPDS | 616J | 2024-10-16 | Yes |
| 616-409 | GRAND RPDS | 6534 | 2025-04-11 | Yes |
| 616-410 | GRAND RPDS | 829J | 2018-09-13 | Yes |
| 616-411 | XXXXXXXXXX | MULT | — | — |
| 616-412 | HOLLAND | 6630 | — | — |
| 616-413 | GRAND RPDS | 6534 | 2025-09-24 | Yes |
| 616-414 | GRANDHAVEN | 770E | 2010-03-05 | Yes |
| 616-415 | GRAND RPDS | 671J | 2025-10-10 | Yes |
| 616-416 | HOLLAND | 6003 | 2018-04-12 | Yes |
| 616-419 | GRAND RPDS | 2964 | 2011-08-05 | Yes |
| 616-420 | ALTO | 543C | 2009-02-06 | Yes |
| 616-421 | LOWELL | 7157 | — | Yes |
| 616-422 | HOLLAND | 2964 | 2010-07-02 | Yes |
| 616-424 | CONKLIN | 516J | 2022-03-07 | Yes |
| 616-425 | ADA | 7157 | — | Yes |
| 616-426 | GRAND RPDS | 6120 | 2012-02-08 | Yes |
| 616-427 | GRAND RPDS | 2964 | 2010-08-05 | Yes |
| 616-428 | GRAND RPDS | 508J | 2018-02-22 | Yes |
| 616-430 | GRAND RPDS | 6003 | — | — |
| 616-431 | MARNE | 7157 | — | Yes |
| 616-432 | GRAND RPDS | 770E | 2011-03-10 | Yes |
| 616-433 | ROCKFORD | 7157 | — | Yes |
| 616-437 | GRAND RPDS | 2964 | — | Yes |
| 616-438 | GRAND RPDS | 543C | 2010-02-16 | Yes |
| 616-439 | CEDAR SPG | 991E | 2010-02-16 | Yes |
| 616-440 | XXXXXXXXXX | 9323 | — | — |
| 616-441 | LAKEODESSA | 543C | 2015-08-18 | Yes |
| 616-442 | GRAND RPDS | 6630 | — | — |
| 616-443 | GRAND RPDS | 6003 | — | — |
| 616-444 | GRAND RPDS | 6630 | — | — |
| 616-445 | DRENTHE | 2964 | 2025-08-28 | Yes |
| 616-446 | GRAND RPDS | 6003 | — | — |
| 616-447 | GRAND RPDS | 9323 | — | — |
| 616-448 | DRENTHE | 6534 | — | Yes |
| 616-449 | FREEPORT | 961J | 2012-05-08 | Yes |
| 616-450 | GRAND RPDS | 6003 | — | — |
| 616-451 | GRAND RPDS | 9323 | — | — |
| 616-452 | GRAND RPDS | 9323 | — | — |
| 616-453 | GRAND RPDS | 9323 | — | — |
| 616-454 | GRAND RPDS | 9323 | — | — |
| 616-455 | GRAND RPDS | 9323 | — | — |
| 616-456 | GRAND RPDS | 9323 | — | — |
| 616-457 | GRAND RPDS | 9323 | — | — |
| 616-458 | GRAND RPDS | 9323 | — | — |
| 616-459 | GRAND RPDS | 9323 | — | — |
| 616-460 | GRAND RPDS | 6003 | — | — |
| 616-464 | GRAND RPDS | 9323 | — | — |
| 616-465 | GRAND RPDS | 965H | 2021-03-24 | Yes |
| 616-466 | GRAND RPDS | 2964 | 2010-07-23 | Yes |
| 616-469 | ADA | 6534 | — | Yes |
| 616-472 | GRAND RPDS | 6630 | — | — |
| 616-474 | GRAND RPDS | 9748 | — | — |
| 616-475 | GRAND RPDS | 9323 | — | — |
| 616-477 | GRAND RPDS | 829J | 2004-10-26 | Yes |
| 616-478 | GRAND RPDS | 9748 | — | — |
| 616-479 | GRAND RPDS | 9748 | — | — |
| 616-480 | GRAND RPDS | 6630 | — | — |
| 616-481 | GRAND RPDS | 6003 | — | — |
| 616-482 | GRAND RPDS | 7157 | — | Yes |
| 616-483 | DUTTON | 991E | 2018-09-21 | Yes |
| 616-485 | GRAND RPDS | 6003 | — | — |
| 616-486 | GRAND RPDS | 9323 | — | — |
| 616-489 | IONIA | 6534 | 2016-09-19 | Yes |
| 616-490 | GRAND RPDS | 6003 | — | — |
| 616-493 | GRAND RPDS | 7157 | — | Yes |
| 616-494 | HOLLAND | 9323 | — | — |
| 616-495 | GRAND RPDS | 6630 | — | — |
| 616-498 | GRAND RPDS | 6003 | — | — |
| 616-499 | HOLLAND | 6120 | 2002-07-19 | Yes |
| 616-500 | GRAND RPDS | 624H | 2019-09-23 | Yes |
| 616-502 | GRANDHAVEN | 6003 | 2001-09-17 | — |
| 616-504 | CLARKSVL | 6120 | 2004-06-22 | Yes |
| 616-510 | HOLLAND | 6534 | 2001-11-16 | Yes |
| 616-511 | XXXXXXXXXX | MULT | — | — |
| 616-512 | DUTTON | 829J | 2011-04-06 | Yes |
| 616-514 | GRAND RPDS | 9323 | — | Yes |
| 616-515 | CASNOVIA | 624H | — | Yes |
| 616-516 | GRAND RPDS | 2964 | — | Yes |
| 616-518 | HOLLAND | 9748 | — | — |
| 616-520 | SPARTA | 7157 | — | Yes |
| 616-522 | IONIA | 9323 | — | Yes |
| 616-523 | IONIA | 9323 | — | Yes |
| 616-524 | GRATTAN | 7157 | — | Yes |
| 616-526 | GRAND RPDS | 9323 | 2002-01-16 | — |
| 616-527 | IONIA | 9323 | — | — |
| 616-528 | CALEDONIA | 7157 | — | Yes |
| 616-529 | GRANDHAVEN | 9748 | — | — |
| 616-530 | GRAND RPDS | 9323 | — | — |
| 616-531 | GRAND RPDS | 9323 | — | — |
| 616-532 | GRAND RPDS | 9323 | — | — |
| 616-534 | GRAND RPDS | 9323 | — | — |
| 616-535 | SPARTA | 5562 | 2018-09-13 | Yes |
| 616-536 | CALEDONIA | 6534 | — | Yes |
| 616-537 | LAKEODESSA | 3535 | 2004-09-29 | 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.