AMERICAN MESSAGING SERVICES, LLC
19 prefixes in 248 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 248-235 | ROYAL OAK | 9748 | — | — |
| 248-271 | HOLLY | 9748 | — | — |
| 248-279 | NORTHVILLE | 9748 | — | — |
| 248-314 | NORTHVILLE | 9748 | — | — |
| 248-323 | PONTIAC | 9748 | — | — |
| 248-367 | ROYAL OAK | 9748 | — | — |
| 248-400 | SOUTHFIELD | 9748 | — | — |
| 248-407 | AUBURN HTS | 9748 | — | — |
| 248-441 | AUBURN HTS | 9748 | — | — |
| 248-523 | FARMINGTON | 9748 | — | — |
| 248-527 | PONTIAC | 9748 | — | — |
| 248-570 | PONTIAC | 9748 | — | — |
| 248-612 | HOLLY | 9748 | — | — |
| 248-725 | PONTIAC | 9748 | — | — |
| 248-806 | PONTIAC | 9748 | — | — |
| 248-815 | PONTIAC | 9748 | — | — |
| 248-992 | ROYAL OAK | 9748 | — | — |
| 248-995 | ROYAL OAK | 9748 | 2004-07-21 | — |
| 248-998 | ROYAL OAK | 9748 | — | — |
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.