MCIMETRO ACCESS TRANSMISSION SERVICES LLC
47 prefixes in 508 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 508-206 | NATICK | 7229 | 2018-02-15 | Yes |
| 508-256 | BROCKTON | 7229 | — | Yes |
| 508-267 | HOLDEN | 7229 | — | Yes |
| 508-300 | FALL RIVER | 7229 | — | Yes |
| 508-302 | FRAMINGHAM | 7229 | — | Yes |
| 508-310 | NATICK | 7229 | — | Yes |
| 508-318 | NATICK | 7229 | — | Yes |
| 508-355 | MARION | 7229 | — | Yes |
| 508-374 | NANTUCKET | 7229 | — | Yes |
| 508-401 | WAYLAND | 7229 | 2002-06-04 | Yes |
| 508-408 | BROCKTON | 7229 | — | Yes |
| 508-417 | HOPKINTON | 7229 | — | Yes |
| 508-437 | BARNSTABLE | 7229 | — | Yes |
| 508-445 | CATAUMET | 7229 | — | Yes |
| 508-448 | REHOBOTH | 7229 | — | Yes |
| 508-458 | MILFORD | 7229 | — | Yes |
| 508-462 | CHARLTON | 7229 | — | Yes |
| 508-463 | ATTLEBORO | 7229 | — | Yes |
| 508-464 | UPTON | 7229 | — | Yes |
| 508-484 | BROCKTON | 7229 | — | Yes |
| 508-505 | WALPOLE | 7229 | — | Yes |
| 508-519 | WORCESTER | 7229 | — | Yes |
| 508-526 | UXBRIDGE | 7229 | — | Yes |
| 508-530 | FRANKLIN | 7229 | — | Yes |
| 508-546 | FOXBORO | 7229 | — | Yes |
| 508-573 | MARLBORO | 7229 | — | Yes |
| 508-589 | HOPKINTON | 7229 | — | Yes |
| 508-590 | FRANKLIN | 7229 | — | Yes |
| 508-597 | MARLBORO | 7229 | — | Yes |
| 508-598 | FRAMINGHAM | 7229 | — | Yes |
| 508-599 | WESTBORO | 7229 | — | Yes |
| 508-618 | MANSFIELD | 7229 | — | Yes |
| 508-629 | VINEYRDHVN | 7229 | — | Yes |
| 508-632 | HARWICH | 7229 | — | Yes |
| 508-637 | NOBROOKFLD | 7229 | 2002-06-04 | Yes |
| 508-663 | FRAMINGHAM | 7229 | — | Yes |
| 508-664 | WELLFLEET | 7229 | — | Yes |
| 508-691 | NORTHBORO | 7229 | — | Yes |
| 508-713 | WORCESTER | 7229 | — | Yes |
| 508-718 | FOXBORO | 7229 | — | Yes |
| 508-739 | FRAMINGHAM | 7229 | — | Yes |
| 508-796 | WORCESTER | 7229 | — | Yes |
| 508-803 | FRANKLIN | 7229 | — | Yes |
| 508-810 | NATICK | 7229 | — | Yes |
| 508-861 | FRAMINGHAM | 7229 | — | Yes |
| 508-906 | MEDFIELD | 7229 | — | Yes |
| 508-983 | WESTBORO | 7229 | — | 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.