CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI
42 prefixes in 231 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 231-215 | MUSKEGON | 6003 | — | — |
| 231-233 | LUDINGTON | 6003 | 2004-08-30 | — |
| 231-239 | LUDINGTON | 6003 | 2004-04-28 | Yes |
| 231-250 | BIG RAPIDS | 6003 | — | — |
| 231-268 | CHEBOYGAN | 6003 | 2004-07-12 | Yes |
| 231-286 | MUSKEGON | 6003 | — | — |
| 231-287 | BIG RAPIDS | 6003 | — | Yes |
| 231-301 | HART | 6003 | — | Yes |
| 231-321 | ELMIRA | 6003 | 2021-05-19 | Yes |
| 231-330 | PETOSKEY | 6003 | 2002-12-10 | — |
| 231-340 | ELMIRA | 6003 | 2003-07-09 | Yes |
| 231-342 | TRAVERSECY | 6003 | — | — |
| 231-349 | BIG RAPIDS | 6003 | — | — |
| 231-350 | BELLAIRE | 6003 | 2003-07-09 | Yes |
| 231-357 | TRAVERSECY | 6003 | — | — |
| 231-373 | PETOSKEY | 6003 | 2004-04-27 | Yes |
| 231-375 | MUSKEGON | 6003 | — | Yes |
| 231-383 | BEULAH | 6003 | 2003-04-29 | Yes |
| 231-384 | KALKASKA | 6003 | 2003-05-01 | Yes |
| 231-388 | LE ROY | 6003 | 2003-05-01 | Yes |
| 231-394 | MOORESTOWN | 6003 | 2003-07-29 | Yes |
| 231-420 | CHEBOYGAN | 6003 | — | — |
| 231-429 | CADILLAC | 6003 | 2002-12-05 | — |
| 231-433 | MOORESTOWN | 6003 | 2011-04-29 | Yes |
| 231-445 | CHEBOYGAN | 6003 | 2004-08-24 | Yes |
| 231-463 | TRAVERSECY | 6003 | — | Yes |
| 231-492 | TRAVERSECY | 6003 | — | Yes |
| 231-499 | TRAVERSECY | 6003 | — | — |
| 231-519 | NEWAYGO | 6003 | 2002-07-19 | — |
| 231-557 | MUSKEGON | 6003 | — | — |
| 231-590 | TRAVERSECY | 6003 | — | — |
| 231-631 | TRAVERSECY | 6003 | 2001-08-31 | — |
| 231-649 | TRAVERSECY | 6003 | 2002-07-19 | — |
| 231-655 | MANISTEE | 6003 | 2014-12-19 | Yes |
| 231-670 | MUSKEGON | 6003 | 2001-02-21 | Yes |
| 231-679 | BIG RAPIDS | 6003 | 2002-10-24 | Yes |
| 231-690 | LUDINGTON | 6003 | 2002-07-19 | — |
| 231-714 | TRAVERSECY | 6003 | — | Yes |
| 231-735 | TRAVERSECY | 6003 | 2001-06-18 | Yes |
| 231-740 | MUSKEGON | 6003 | — | — |
| 231-878 | CADILLAC | 6003 | 2002-07-19 | — |
| 231-942 | CADILLAC | 6003 | 2001-06-18 | 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.