LEVEL 3 COMMUNICATIONS, LLC - MI
58 prefixes in 248 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 248-206 | ROYAL OAK | 6120 | 2014-02-12 | Yes |
| 248-230 | PONTIAC | 6120 | — | Yes |
| 248-232 | PONTIAC | 6120 | — | Yes |
| 248-233 | SOUTHFIELD | 6120 | — | — |
| 248-237 | AUBURN HTS | 6120 | — | Yes |
| 248-243 | AUBURN HTS | 6120 | — | Yes |
| 248-246 | ROYAL OAK | 6120 | — | Yes |
| 248-256 | OXFORD | 6120 | — | Yes |
| 248-257 | DRAYTON PL | 6120 | — | Yes |
| 248-274 | OXFORD | 6120 | — | Yes |
| 248-275 | TROY | 6120 | — | Yes |
| 248-341 | BIRMINGHAM | 6120 | — | Yes |
| 248-381 | FARMINGTON | 6120 | — | Yes |
| 248-382 | HOLLY | 6120 | — | Yes |
| 248-412 | NORTHVILLE | 6120 | — | Yes |
| 248-413 | ROCHESTER | 6120 | — | Yes |
| 248-419 | W BLOOMFLD | 6120 | — | Yes |
| 248-432 | W BLOOMFLD | 6120 | — | Yes |
| 248-434 | TROY | 6120 | — | Yes |
| 248-436 | SOUTHFIELD | 6120 | — | Yes |
| 248-438 | WALLEDLAKE | 6120 | — | Yes |
| 248-491 | SOUTH LYON | 6120 | — | Yes |
| 248-504 | NORTHVILLE | 6120 | — | Yes |
| 248-522 | FARMINGTON | 6120 | — | Yes |
| 248-534 | HOLLY | 6120 | — | Yes |
| 248-562 | W BLOOMFLD | 6120 | — | Yes |
| 248-565 | ROYAL OAK | 6120 | — | Yes |
| 248-566 | BIRMINGHAM | 6120 | — | Yes |
| 248-579 | FARMINGTON | 6120 | — | Yes |
| 248-598 | AUBURN HTS | 6120 | — | Yes |
| 248-605 | CLARKSTON | 6120 | 2004-10-18 | Yes |
| 248-607 | ROYAL OAK | 6120 | 2014-10-03 | Yes |
| 248-630 | PONTIAC | 6120 | — | Yes |
| 248-636 | PONTIAC | 6120 | — | Yes |
| 248-639 | PONTIAC | 6120 | 2011-08-08 | Yes |
| 248-679 | NORTHVILLE | 6120 | — | Yes |
| 248-686 | BIRMINGHAM | 6120 | — | Yes |
| 248-721 | ROYAL OAK | 6120 | — | Yes |
| 248-726 | ROCHESTER | 6120 | — | Yes |
| 248-731 | BIRMINGHAM | 6120 | 2002-05-08 | Yes |
| 248-742 | DRAYTON PL | 6120 | — | Yes |
| 248-778 | CLARKSTON | 6120 | — | Yes |
| 248-779 | COMMERCE | 6120 | — | Yes |
| 248-782 | SOUTH LYON | 6120 | — | Yes |
| 248-783 | LAKE ORION | 6120 | — | Yes |
| 248-796 | SOUTHFIELD | 6120 | — | Yes |
| 248-823 | TROY | 6120 | — | Yes |
| 248-834 | LAKE ORION | 6120 | — | Yes |
| 248-846 | HOLLY | 6120 | — | Yes |
| 248-864 | SOUTHFIELD | 6120 | 2001-08-27 | Yes |
| 248-876 | FARMINGTON | 6120 | — | Yes |
| 248-883 | PONTIAC | 6120 | — | Yes |
| 248-896 | WALLEDLAKE | 6120 | — | Yes |
| 248-918 | TROY | 6120 | 2001-10-01 | Yes |
| 248-929 | LAKE ORION | 6120 | 2001-12-28 | Yes |
| 248-937 | COMMERCE | 6120 | — | Yes |
| 248-942 | CLARKSTON | 6120 | — | Yes |
| 248-997 | AUBURN HTS | 6120 | — | 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.