MICHIGAN BELL TEL CO
251 prefixes in 248 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 248-476 | FARMINGTON | 9323 | — | — |
| 248-477 | FARMINGTON | 9323 | — | — |
| 248-478 | FARMINGTON | 9323 | — | — |
| 248-483 | SOUTHFIELD | 9323 | — | Yes |
| 248-486 | SOUTH LYON | 9323 | — | — |
| 248-488 | FARMINGTON | 9323 | — | Yes |
| 248-489 | FARMINGTON | 9323 | — | Yes |
| 248-501 | SOUTHFIELD | 9323 | — | — |
| 248-503 | SOUTHFIELD | 9323 | — | — |
| 248-512 | PONTIAC | 9323 | — | — |
| 248-524 | TROY | 9323 | — | — |
| 248-526 | TROY | 9323 | — | — |
| 248-528 | TROY | 9323 | — | Yes |
| 248-538 | W BLOOMFLD | 9323 | — | — |
| 248-539 | W BLOOMFLD | 9323 | — | — |
| 248-540 | BIRMINGHAM | 9323 | — | — |
| 248-541 | ROYAL OAK | 9323 | — | — |
| 248-542 | ROYAL OAK | 9323 | — | — |
| 248-543 | ROYAL OAK | 9323 | — | — |
| 248-544 | ROYAL OAK | 9323 | — | — |
| 248-545 | ROYAL OAK | 9323 | — | — |
| 248-546 | ROYAL OAK | 9323 | — | — |
| 248-547 | ROYAL OAK | 9323 | — | — |
| 248-548 | ROYAL OAK | 9323 | — | — |
| 248-549 | ROYAL OAK | 9323 | — | — |
| 248-551 | ROYAL OAK | 9323 | — | — |
| 248-552 | SOUTHFIELD | 9323 | — | — |
| 248-553 | FARMINGTON | 9323 | — | — |
| 248-554 | ROYAL OAK | 9323 | — | Yes |
| 248-557 | SOUTHFIELD | 9323 | — | — |
| 248-559 | SOUTHFIELD | 9323 | — | — |
| 248-569 | SOUTHFIELD | 9323 | — | — |
| 248-576 | PONTIAC | 9323 | — | — |
| 248-577 | ROYAL OAK | 9323 | — | — |
| 248-582 | ROYAL OAK | 9323 | — | Yes |
| 248-583 | ROYAL OAK | 9323 | — | — |
| 248-584 | ROYAL OAK | 9323 | — | — |
| 248-585 | ROYAL OAK | 9323 | — | — |
| 248-586 | ROYAL OAK | 9323 | — | Yes |
| 248-588 | ROYAL OAK | 9323 | — | — |
| 248-589 | ROYAL OAK | 9323 | — | — |
| 248-591 | ROYAL OAK | 9323 | — | Yes |
| 248-592 | W BLOOMFLD | 9323 | — | Yes |
| 248-593 | BIRMINGHAM | 9323 | — | — |
| 248-594 | BIRMINGHAM | 9323 | — | — |
| 248-596 | NORTHVILLE | 9323 | — | — |
| 248-597 | ROYAL OAK | 9323 | — | — |
| 248-601 | ROCHESTER | 9323 | — | — |
| 248-603 | SOUTHFIELD | 9323 | — | — |
| 248-606 | AUBURN HTS | 9323 | 2001-12-28 | Yes |
| 248-608 | ROCHESTER | 9323 | — | Yes |
| 248-614 | BIRMINGHAM | 9323 | — | Yes |
| 248-615 | FARMINGTON | 9323 | — | — |
| 248-616 | ROYAL OAK | 9323 | — | Yes |
| 248-618 | DRAYTON PL | 9323 | — | Yes |
| 248-619 | TROY | 9323 | — | Yes |
| 248-620 | CLARKSTON | 9323 | — | — |
| 248-623 | DRAYTON PL | 9323 | — | — |
| 248-624 | WALLEDLAKE | 9323 | — | — |
| 248-625 | CLARKSTON | 9323 | — | — |
| 248-626 | W BLOOMFLD | 9323 | — | — |
| 248-628 | OXFORD | 9323 | — | — |
| 248-634 | HOLLY | 9323 | — | — |
| 248-637 | BIRMINGHAM | 9323 | — | — |
| 248-641 | BIRMINGHAM | 9323 | — | — |
| 248-642 | BIRMINGHAM | 9323 | — | — |
| 248-643 | BIRMINGHAM | 9323 | — | — |
| 248-644 | BIRMINGHAM | 9323 | — | — |
| 248-645 | BIRMINGHAM | 9323 | — | — |
| 248-646 | BIRMINGHAM | 9323 | — | — |
| 248-647 | BIRMINGHAM | 9323 | — | — |
| 248-649 | BIRMINGHAM | 9323 | — | — |
| 248-650 | ROCHESTER | 9323 | — | — |
| 248-651 | ROCHESTER | 9323 | — | — |
| 248-652 | ROCHESTER | 9323 | — | — |
| 248-655 | ROYAL OAK | 9323 | — | Yes |
| 248-656 | ROCHESTER | 9323 | — | — |
| 248-661 | W BLOOMFLD | 9323 | — | — |
| 248-666 | DRAYTON PL | 9323 | — | — |
| 248-668 | WALLEDLAKE | 9323 | — | — |
| 248-669 | WALLEDLAKE | 9323 | — | — |
| 248-673 | DRAYTON PL | 9323 | — | — |
| 248-674 | DRAYTON PL | 9323 | — | — |
| 248-680 | TROY | 9323 | — | — |
| 248-681 | PONTIAC | 9323 | — | — |
| 248-682 | PONTIAC | 9323 | — | — |
| 248-683 | PONTIAC | 9323 | — | — |
| 248-689 | TROY | 9323 | — | — |
| 248-691 | ROYAL OAK | 9323 | — | Yes |
| 248-693 | LAKE ORION | 9323 | — | — |
| 248-696 | BIRMINGHAM | 9323 | — | — |
| 248-698 | COMMERCE | 9323 | — | Yes |
| 248-706 | PONTIAC | 9323 | — | Yes |
| 248-723 | BIRMINGHAM | 9323 | — | — |
| 248-733 | ROYAL OAK | 9323 | — | Yes |
| 248-735 | NORTHVILLE | 9323 | — | — |
| 248-737 | W BLOOMFLD | 9323 | — | — |
| 248-738 | PONTIAC | 9323 | — | — |
| 248-740 | TROY | 9323 | — | — |
| 248-743 | TROY | 9323 | — | 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.