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 |
|---|---|---|---|---|
| 248-745 | PONTIAC | 9323 | — | — |
| 248-746 | SOUTHFIELD | 9323 | — | — |
| 248-753 | PONTIAC | 9323 | — | — |
| 248-754 | PONTIAC | 9323 | — | — |
| 248-758 | PONTIAC | 9323 | 2001-05-24 | Yes |
| 248-777 | DETROITZN5 | 9323 | — | Yes |
| 248-788 | W BLOOMFLD | 9323 | — | Yes |
| 248-799 | SOUTHFIELD | 9323 | — | Yes |
| 248-813 | TROY | 9323 | — | Yes |
| 248-814 | LAKE ORION | 9323 | — | Yes |
| 248-816 | BIRMINGHAM | 9323 | — | — |
| 248-822 | BIRMINGHAM | 9323 | — | — |
| 248-827 | SOUTHFIELD | 9323 | — | Yes |
| 248-828 | TROY | 9323 | — | Yes |
| 248-838 | PONTIAC | 9323 | — | Yes |
| 248-844 | AUBURN HTS | 9323 | — | — |
| 248-848 | FARMINGTON | 9323 | — | — |
| 248-849 | SOUTHFIELD | 9323 | 2001-05-02 | Yes |
| 248-851 | W BLOOMFLD | 9323 | — | — |
| 248-852 | AUBURN HTS | 9323 | — | — |
| 248-853 | AUBURN HTS | 9323 | — | — |
| 248-855 | W BLOOMFLD | 9323 | — | — |
| 248-857 | PONTIAC | 9323 | — | — |
| 248-858 | PONTIAC | 9323 | — | — |
| 248-865 | W BLOOMFLD | 9323 | — | — |
| 248-874 | PONTIAC | 9323 | — | Yes |
| 248-879 | TROY | 9323 | — | — |
| 248-886 | DRAYTON PL | 9323 | — | Yes |
| 248-888 | FARMINGTON | 9323 | — | Yes |
| 248-898 | ROYAL OAK | 9323 | — | — |
| 248-901 | BIRMINGHAM | 9323 | — | Yes |
| 248-902 | SOUTHFIELD | 9323 | — | — |
| 248-903 | SOUTHFIELD | 9323 | — | — |
| 248-905 | SOUTHFIELD | 9323 | — | Yes |
| 248-922 | CLARKSTON | 9323 | — | Yes |
| 248-926 | WALLEDLAKE | 9323 | — | — |
| 248-932 | W BLOOMFLD | 9323 | — | — |
| 248-944 | PONTIAC | 9323 | — | — |
| 248-945 | SOUTHFIELD | 9323 | — | Yes |
| 248-948 | SOUTHFIELD | 9323 | — | — |
| 248-952 | BIRMINGHAM | 9323 | — | Yes |
| 248-960 | WALLEDLAKE | 9323 | — | — |
| 248-964 | TROY | 9323 | — | — |
| 248-967 | ROYAL OAK | 9323 | — | — |
| 248-968 | ROYAL OAK | 9323 | — | — |
| 248-969 | OXFORD | 9323 | — | — |
| 248-972 | PONTIAC | 9323 | — | Yes |
| 248-975 | PONTIAC | 9323 | — | Yes |
| 248-988 | BIRMINGHAM | 9323 | — | Yes |
| 248-994 | FARMINGTON | 9323 | — | Yes |
| 248-999 | 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.