MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI
25 prefixes in 313 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 313-216 | DETROITZN6 | 7279 | — | Yes |
| 313-230 | DETROITZN1 | 7279 | — | Yes |
| 313-262 | DETROITZN1 | 7279 | — | Yes |
| 313-286 | DETROITZN5 | 7279 | — | Yes |
| 313-347 | DETROITZN2 | 7279 | — | Yes |
| 313-416 | DETROITZN4 | 7279 | — | Yes |
| 313-422 | DETROITZN3 | 7279 | — | Yes |
| 313-449 | DETROITZN2 | 7279 | — | Yes |
| 313-450 | DETROITZN5 | 7279 | — | Yes |
| 313-457 | DETROITZN6 | 7279 | — | Yes |
| 313-557 | DETROITZN1 | 7279 | — | Yes |
| 313-651 | DETROITZN4 | 7279 | — | Yes |
| 313-725 | DETROITZN1 | 7279 | 2013-05-13 | Yes |
| 313-731 | DETROITZN3 | 7279 | — | Yes |
| 313-732 | DETROITZN2 | 7279 | — | Yes |
| 313-733 | DETROITZN3 | 7279 | — | Yes |
| 313-736 | DETROITZN4 | 7279 | — | Yes |
| 313-743 | DETROITZN2 | 7279 | — | Yes |
| 313-748 | DETROITZN1 | 7279 | 2001-08-15 | Yes |
| 313-749 | DETROITZN6 | 7279 | — | Yes |
| 313-766 | DETROITZN5 | 7279 | — | Yes |
| 313-768 | DETROITZN6 | 7279 | — | Yes |
| 313-915 | DETROITZN4 | 7279 | — | Yes |
| 313-952 | DETROITZN5 | 7279 | — | Yes |
| 313-989 | DETROITZN1 | 7279 | — | 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.