TELEPORT COMMUNICATIONS AMERICA, LLC - MI
36 prefixes in 810 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 810-207 | HARTLAND | 770E | 2005-11-23 | Yes |
| 810-254 | GRANDBLANC | 770E | 2020-08-17 | Yes |
| 810-255 | HADLEY | 770E | 2015-09-17 | Yes |
| 810-269 | SANDUSKY | 770E | — | Yes |
| 810-363 | PORT HURON | 770E | 2019-07-29 | Yes |
| 810-370 | BYRON | 770E | — | Yes |
| 810-374 | OTISVILLE | 770E | — | Yes |
| 810-377 | LEXINGTON | 770E | — | Yes |
| 810-410 | FLINT | 770E | — | Yes |
| 810-425 | PT SANILAC | 770E | 2002-01-16 | Yes |
| 810-458 | LINDEN | 770E | — | Yes |
| 810-462 | YALE | 770E | — | Yes |
| 810-474 | AVOCA | 770E | — | Yes |
| 810-475 | BROWN CITY | 770E | — | Yes |
| 810-503 | DAVISON | 770E | — | Yes |
| 810-505 | DECKERVL | 770E | — | Yes |
| 810-522 | BRIGHTON | 770E | — | Yes |
| 810-525 | EMMETT | 770E | — | Yes |
| 810-544 | CARSONVL | 770E | — | Yes |
| 810-545 | COLUMBIAVL | 770E | — | Yes |
| 810-546 | CROSWELL | 770E | — | Yes |
| 810-547 | CLIMTMORRS | 770E | — | Yes |
| 810-641 | SNOVER | 770E | — | Yes |
| 810-642 | SMITHS CRK | 770E | — | Yes |
| 810-644 | SWARTZ CRK | 770E | — | Yes |
| 810-669 | CAPAC | 770E | 2001-10-18 | Yes |
| 810-671 | ALGONAC | 770E | — | Yes |
| 810-673 | ALMONT | 770E | — | Yes |
| 810-674 | APPLEGATE | 770E | — | Yes |
| 810-842 | IMLAY CITY | 770E | — | Yes |
| 810-854 | BRIGHTON | 770E | 2025-02-18 | Yes |
| 810-866 | GRANDBLANC | 770E | — | Yes |
| 810-867 | FLUSHING | 770E | — | Yes |
| 810-936 | FENTON | 770E | — | Yes |
| 810-941 | PORT HURON | 770E | — | Yes |
| 810-990 | PORT HURON | 770E | — | 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.