All assignees
799 prefixes in 248 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 248-601 | ROCHESTER | 9323 | — | — |
| 248-602 | TROY | 5562 | 2011-05-16 | Yes |
| 248-603 | SOUTHFIELD | 9323 | — | — |
| 248-604 | SOUTHFIELD | 6630 | — | — |
| 248-605 | CLARKSTON | 6120 | 2004-10-18 | Yes |
| 248-606 | AUBURN HTS | 9323 | 2001-12-28 | Yes |
| 248-607 | ROYAL OAK | 6120 | 2014-10-03 | Yes |
| 248-608 | ROCHESTER | 9323 | — | Yes |
| 248-609 | ROCHESTER | 829J | — | Yes |
| 248-610 | PONTIAC | 6630 | — | — |
| 248-611 | XXXXXXXXXX | MULT | — | — |
| 248-612 | HOLLY | 9748 | — | — |
| 248-613 | PONTIAC | 6534 | — | — |
| 248-614 | BIRMINGHAM | 9323 | — | Yes |
| 248-615 | FARMINGTON | 9323 | — | — |
| 248-616 | ROYAL OAK | 9323 | — | Yes |
| 248-617 | SOUTH LYON | 318J | 2015-04-13 | Yes |
| 248-618 | DRAYTON PL | 9323 | — | Yes |
| 248-619 | TROY | 9323 | — | Yes |
| 248-620 | CLARKSTON | 9323 | — | — |
| 248-621 | SOUTHFIELD | 2550 | 2015-08-17 | Yes |
| 248-622 | PONTIAC | 6534 | — | Yes |
| 248-623 | DRAYTON PL | 9323 | — | — |
| 248-624 | WALLEDLAKE | 9323 | — | — |
| 248-625 | CLARKSTON | 9323 | — | — |
| 248-626 | W BLOOMFLD | 9323 | — | — |
| 248-627 | ORTONVILLE | 0695 | — | Yes |
| 248-628 | OXFORD | 9323 | — | — |
| 248-629 | ROYAL OAK | 770E | — | Yes |
| 248-630 | PONTIAC | 6120 | — | Yes |
| 248-631 | BIRMINGHAM | 770E | — | Yes |
| 248-632 | ROYAL OAK | 5562 | — | Yes |
| 248-633 | BIRMINGHAM | 2550 | — | Yes |
| 248-634 | HOLLY | 9323 | — | — |
| 248-635 | TROY | 2964 | — | Yes |
| 248-636 | PONTIAC | 6120 | — | Yes |
| 248-637 | BIRMINGHAM | 9323 | — | — |
| 248-638 | MILFDWH LK | 6003 | 2013-02-01 | Yes |
| 248-639 | PONTIAC | 6120 | 2011-08-08 | Yes |
| 248-640 | SOUTHFIELD | 5562 | — | Yes |
| 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 | — | — |
| 248-648 | PONTIAC | 770E | — | Yes |
| 248-649 | BIRMINGHAM | 9323 | — | — |
| 248-650 | ROCHESTER | 9323 | — | — |
| 248-651 | ROCHESTER | 9323 | — | — |
| 248-652 | ROCHESTER | 9323 | — | — |
| 248-653 | HOLLY | 5562 | 2015-08-26 | Yes |
| 248-654 | ROYAL OAK | 7279 | — | Yes |
| 248-655 | ROYAL OAK | 9323 | — | Yes |
| 248-656 | ROCHESTER | 9323 | — | — |
| 248-657 | CLARKSTON | 9714 | 2014-09-04 | Yes |
| 248-658 | ROYAL OAK | 829J | — | Yes |
| 248-659 | ROCHESTER | 7279 | — | Yes |
| 248-660 | HOLLY | 6003 | — | Yes |
| 248-661 | W BLOOMFLD | 9323 | — | — |
| 248-662 | NORTHVILLE | 829J | — | Yes |
| 248-663 | SOUTHFIELD | 829J | — | — |
| 248-664 | MILFDWH LK | 6003 | — | Yes |
| 248-665 | SOUTHFIELD | 829J | — | Yes |
| 248-666 | DRAYTON PL | 9323 | — | — |
| 248-667 | SOUTH LYON | 5562 | — | Yes |
| 248-668 | WALLEDLAKE | 9323 | — | — |
| 248-669 | WALLEDLAKE | 9323 | — | — |
| 248-670 | TROY | 2964 | — | Yes |
| 248-671 | W BLOOMFLD | 7279 | — | Yes |
| 248-672 | PONTIAC | 6003 | — | — |
| 248-673 | DRAYTON PL | 9323 | — | — |
| 248-674 | DRAYTON PL | 9323 | — | — |
| 248-675 | NORTHVILLE | 770E | — | Yes |
| 248-676 | MILFDWH LK | 0695 | — | — |
| 248-677 | ROYAL OAK | 770E | — | Yes |
| 248-678 | AUBURN HTS | 829J | — | Yes |
| 248-679 | NORTHVILLE | 6120 | — | Yes |
| 248-680 | TROY | 9323 | — | — |
| 248-681 | PONTIAC | 9323 | — | — |
| 248-682 | PONTIAC | 9323 | — | — |
| 248-683 | PONTIAC | 9323 | — | — |
| 248-684 | MILFDWH LK | 0695 | — | — |
| 248-685 | MILFDWH LK | 0695 | — | — |
| 248-686 | BIRMINGHAM | 6120 | — | Yes |
| 248-687 | TROY | 770E | — | Yes |
| 248-688 | TROY | 770E | — | Yes |
| 248-689 | TROY | 9323 | — | — |
| 248-690 | LAKE ORION | 829J | — | Yes |
| 248-691 | ROYAL OAK | 9323 | — | Yes |
| 248-692 | NORTHVILLE | 7279 | — | Yes |
| 248-693 | LAKE ORION | 9323 | — | — |
| 248-694 | COMMERCE | 7279 | — | Yes |
| 248-695 | BIRMINGHAM | 4632 | — | — |
| 248-696 | BIRMINGHAM | 9323 | — | — |
| 248-697 | NORTHVILLE | 7279 | — | Yes |
| 248-698 | COMMERCE | 9323 | — | Yes |
| 248-699 | FARMINGTON | 770E | — | Yes |
| 248-700 | — | — |
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.