MICHIGAN BELL TEL CO
89 prefixes in 810 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 810-220 | BRIGHTON | 9323 | — | Yes |
| 810-225 | BRIGHTON | 9323 | — | — |
| 810-227 | BRIGHTON | 9323 | — | — |
| 810-229 | BRIGHTON | 9323 | — | — |
| 810-230 | FLINT | 9323 | — | Yes |
| 810-231 | BRIGHTON | 9323 | — | Yes |
| 810-232 | FLINT | 9323 | — | — |
| 810-233 | FLINT | 9323 | — | — |
| 810-234 | FLINT | 9323 | — | — |
| 810-235 | FLINT | 9323 | — | — |
| 810-236 | FLINT | 9323 | — | — |
| 810-237 | FLINT | 9323 | — | Yes |
| 810-238 | FLINT | 9323 | — | — |
| 810-239 | FLINT | 9323 | — | — |
| 810-245 | LAPEER | 9323 | — | — |
| 810-250 | FLINT | 9323 | — | Yes |
| 810-251 | FLINT | 9323 | — | — |
| 810-257 | FLINT | 9323 | — | — |
| 810-266 | BYRON | 9323 | — | Yes |
| 810-282 | FLINT | 9323 | 2002-08-06 | Yes |
| 810-301 | FLINT | 9323 | — | — |
| 810-326 | ST CLAIR | 9323 | — | Yes |
| 810-329 | ST CLAIR | 9323 | — | — |
| 810-341 | FLINT | 9323 | — | Yes |
| 810-342 | FLINT | 9323 | — | Yes |
| 810-359 | LEXINGTON | 9323 | — | Yes |
| 810-364 | PORT HURON | 9323 | — | — |
| 810-378 | PECK | 9323 | — | Yes |
| 810-385 | PORT HURON | 9323 | — | — |
| 810-388 | PORT HURON | 9323 | — | Yes |
| 810-422 | FLINT | 9323 | — | Yes |
| 810-424 | FLINT | 9323 | — | — |
| 810-487 | FLUSHING | 9323 | — | Yes |
| 810-494 | BRIGHTON | 9323 | — | Yes |
| 810-520 | XXXXXXXXXX | 9323 | — | — |
| 810-564 | CLIMTMORRS | 9323 | — | Yes |
| 810-603 | GRANDBLANC | 9323 | — | Yes |
| 810-606 | GRANDBLANC | 9323 | — | — |
| 810-622 | PT SANILAC | 9323 | — | Yes |
| 810-629 | FENTON | 9323 | — | — |
| 810-632 | HARTLAND | 9323 | — | Yes |
| 810-633 | APPLEGATE | 9323 | — | Yes |
| 810-640 | CLIMTMORRS | 9323 | — | Yes |
| 810-648 | SANDUSKY | 9323 | — | Yes |
| 810-657 | CARSONVL | 9323 | — | Yes |
| 810-659 | FLUSHING | 9323 | — | — |
| 810-664 | LAPEER | 9323 | — | — |
| 810-667 | LAPEER | 9323 | — | — |
| 810-672 | SNOVER | 9323 | — | Yes |
| 810-679 | CROSWELL | 9323 | — | Yes |
| 810-686 | CLIMTMORRS | 9323 | — | — |
| 810-687 | CLIMTMORRS | 9323 | — | — |
| 810-694 | GRANDBLANC | 9323 | — | — |
| 810-695 | GRANDBLANC | 9323 | — | — |
| 810-714 | FENTON | 9323 | — | Yes |
| 810-715 | FLINT | 9323 | — | Yes |
| 810-720 | FLINT | 9323 | — | — |
| 810-732 | FLINT | 9323 | — | — |
| 810-733 | FLINT | 9323 | — | — |
| 810-736 | FLINT | 9323 | — | — |
| 810-742 | FLINT | 9323 | — | — |
| 810-743 | FLINT | 9323 | — | — |
| 810-744 | FLINT | 9323 | — | — |
| 810-748 | ALGONAC | 9323 | — | Yes |
| 810-750 | FENTON | 9323 | — | — |
| 810-760 | FLINT | 9323 | — | — |
| 810-762 | FLINT | 9323 | — | — |
| 810-765 | MARINECITY | 9323 | — | — |
| 810-766 | FLINT | 9323 | — | Yes |
| 810-767 | FLINT | 9323 | — | — |
| 810-768 | FLINT | 9323 | — | Yes |
| 810-780 | FLINT | 9323 | — | Yes |
| 810-785 | FLINT | 9323 | — | — |
| 810-787 | FLINT | 9323 | — | — |
| 810-789 | FLINT | 9323 | — | — |
| 810-794 | ALGONAC | 9323 | — | Yes |
| 810-809 | XXXXXXXXXX | 9323 | — | — |
| 810-835 | FLINT | 9323 | — | Yes |
| 810-844 | BRIGHTON | 9323 | — | Yes |
| 810-878 | CROSWELL | 9323 | — | Yes |
| 810-887 | PORT HURON | 9323 | 2001-01-15 | Yes |
| 810-953 | GRANDBLANC | 9323 | — | Yes |
| 810-966 | PORT HURON | 9323 | — | Yes |
| 810-982 | PORT HURON | 9323 | — | — |
| 810-984 | PORT HURON | 9323 | — | — |
| 810-985 | PORT HURON | 9323 | — | — |
| 810-987 | PORT HURON | 9323 | — | — |
| 810-989 | PORT HURON | 9323 | — | — |
| 810-999 | XXXXXXXXXX | 9323 | — | — |
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.