ONVOY, LLCV - MI
49 prefixes in 231 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 231-210 | ST JAMES | 543C | 2023-07-11 | Yes |
| 231-270 | BOYNE CITY | 543C | 2021-05-21 | Yes |
| 231-272 | KINGSLEY | 543C | 2019-08-08 | Yes |
| 231-273 | EASTPORT | 543C | 2020-10-26 | Yes |
| 231-277 | FOUNTAIN | 543C | 2016-03-22 | Yes |
| 231-280 | MANCELONA | 543C | 2016-02-29 | Yes |
| 231-283 | MUSKEGON | 543C | 2020-11-09 | Yes |
| 231-294 | FIFE LAKE | 543C | 2021-06-15 | Yes |
| 231-297 | KINGSLEY | 543C | 2021-06-25 | Yes |
| 231-300 | ALDEN | 543C | 2017-09-07 | Yes |
| 231-304 | BRUTUS | 543C | 2020-10-26 | Yes |
| 231-310 | FALMOUTH | 543C | 2018-09-25 | Yes |
| 231-364 | NORTHPORT | 543C | 2021-06-15 | Yes |
| 231-367 | WOLVERINE | 543C | 2021-06-25 | Yes |
| 231-374 | SHELBY | 543C | 2021-06-15 | Yes |
| 231-376 | TWIN LAKE | 543C | 2021-07-02 | Yes |
| 231-385 | CORAL | 543C | 2021-07-20 | Yes |
| 231-396 | CADILLAC | 543C | 2021-10-29 | Yes |
| 231-400 | ALANSON | 543C | 2019-10-10 | Yes |
| 231-402 | MUSKEGON | 543C | 2022-01-21 | Yes |
| 231-405 | ALDEN | 543C | 2022-02-04 | Yes |
| 231-406 | FALMOUTH | 543C | 2022-02-04 | Yes |
| 231-407 | MECOSTA | 543C | 2022-02-04 | Yes |
| 231-418 | MARION | 543C | 2023-07-11 | Yes |
| 231-419 | BELLAIRE | 543C | 2023-07-11 | Yes |
| 231-426 | RAVENNA | 543C | 2023-07-11 | Yes |
| 231-428 | MUSKEGON | 543C | 2023-07-14 | Yes |
| 231-430 | BOYNE CITY | 543C | 2023-07-14 | Yes |
| 231-431 | CLAM RIVER | 543C | 2021-05-19 | Yes |
| 231-435 | EASTPORT | 543C | 2023-07-14 | Yes |
| 231-438 | HARBOR SPG | 543C | 2023-07-14 | Yes |
| 231-443 | HONOR | 543C | 2021-01-08 | Yes |
| 231-444 | CADILLAC | 543C | 2015-08-24 | Yes |
| 231-446 | NORTHPORT | 543C | 2023-07-14 | Yes |
| 231-447 | HOLTON | 543C | 2015-12-02 | Yes |
| 231-451 | WILLIAMSBG | 543C | 2023-07-14 | Yes |
| 231-455 | PENTWATER | 543C | 2021-01-08 | Yes |
| 231-460 | BIG RAPIDS | 543C | — | Yes |
| 231-500 | WHITEHALL | 543C | 2019-10-10 | Yes |
| 231-666 | MUSKEGON | 543C | 2017-10-09 | Yes |
| 231-707 | NEWAYGO | 543C | 2016-02-25 | Yes |
| 231-751 | WALLOON LK | 543C | 2014-10-06 | Yes |
| 231-771 | ELK RAPIDS | 543C | 2016-03-22 | Yes |
| 231-787 | WHITECLOUD | 543C | 2014-11-07 | Yes |
| 231-800 | LUTHER | 543C | 2017-10-02 | Yes |
| 231-819 | TUSTIN | 543C | 2014-10-06 | Yes |
| 231-831 | EASTJORDAN | 543C | — | Yes |
| 231-888 | TWIN LAKE | 543C | 2015-06-16 | Yes |
| 231-999 | CENTRAL LK | 543C | 2015-08-24 | 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.