MCIMETRO ACCESS TRANSMISSION SERVICES LLC
28 prefixes in 678 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 678-202 | ATLANTA NW | 7229 | — | Yes |
| 678-225 | ATLANTA NE | 7229 | — | Yes |
| 678-226 | ATLANTA NE | 7229 | — | Yes |
| 678-249 | ATLANTA NE | 7229 | — | Yes |
| 678-250 | ATLANTA NE | 7229 | — | Yes |
| 678-255 | ATLANTA NW | 7229 | — | Yes |
| 678-256 | ATLANTA NE | 7229 | — | Yes |
| 678-258 | ATLANTA NE | 7229 | — | Yes |
| 678-260 | ATLANTA NW | 7229 | — | Yes |
| 678-280 | ATLANTA NE | 7229 | — | Yes |
| 678-324 | ATLANTA NW | 7229 | — | Yes |
| 678-330 | ATLANTA NE | 7229 | — | Yes |
| 678-331 | ATLANTA NW | 7229 | — | Yes |
| 678-332 | ATLANTA NE | 7229 | — | Yes |
| 678-333 | ATLANTA NE | 7229 | — | Yes |
| 678-334 | ATLANTA NE | 7229 | — | Yes |
| 678-336 | ATLANTA NE | 7229 | — | Yes |
| 678-337 | ATLANTA NW | 7229 | — | Yes |
| 678-338 | ATLANTA NE | 7229 | — | Yes |
| 678-424 | ATLANTA NW | 7229 | — | Yes |
| 678-601 | CARROLLTON | 7229 | — | Yes |
| 678-664 | CARROLLTON | 7229 | 2006-09-25 | Yes |
| 678-736 | ATLANTA NE | 7229 | — | Yes |
| 678-737 | ATLANTA NW | 7229 | — | Yes |
| 678-828 | FLOWEYBRCH | 7229 | — | Yes |
| 678-840 | VILLA RICA | 7229 | — | Yes |
| 678-922 | VILLA RICA | 7229 | 2006-11-21 | Yes |
| 678-928 | GAINESVL | 7229 | 2004-10-19 | 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.