NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 330-598 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | MONTROSE | OH | |
| 419-324 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | TOLEDO | OH | |
| 419-481 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | TOLEDO | OH | |
| 419-581 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | FINDLAY | OH | |
| 419-740 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | MAUMEE | OH | |
| 440-306 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | WILLOUGHBY | OH | |
| 440-345 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | VICTORY | OH | |
| 440-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BEDFORD | OH | |
| 440-373 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | WICKLIFFE | OH | |
| 440-414 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TRINITY | OH | |
| 440-435 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | GATESMILLS | OH | |
| 440-445 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | MENTOR | OH | |
| 440-457 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | NOROYALTON | OH | |
| 440-505 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CHAGRINFLS | OH | |
| 440-508 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | OLMSTEDFLS | OH | |
| 440-510 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | WILLOUGHBY | OH | |
| 440-512 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BEREA | OH | |
| 440-525 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | WILLOUGHBY | OH | |
| 440-573 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | HILLCREST | OH | |
| 440-575 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TRINITY | OH | |
| 440-578 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | MENTOR | OH | |
| 440-579 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | PAINESVL | OH | |
| 440-584 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BRECKSVL | OH | |
| 440-673 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 440-683 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | HILLCREST | OH | |
| 440-699 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | HILLCREST | OH | |
| 440-703 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BEDFORD | OH | |
| 440-715 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CHAGRINFLS | OH | |
| 440-730 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 440-744 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | KIRTLAND | OH | |
| 440-745 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | GATESMILLS | OH | |
| 440-751 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | OBERLIN | OH | |
| 440-753 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | HILLCREST | OH | |
| 440-756 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | OLMSTEDFLS | OH | |
| 440-799 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 440-809 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | VICTORY | OH | |
| 440-824 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BEREA | OH | |
| 440-848 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | NOROYALTON | OH | |
| 440-860 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | WICKLIFFE | OH | |
| 440-863 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BEREA | OH | |
| 440-866 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | VICTORY | OH | |
| 440-876 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | STRONGSVL | OH | |
| 440-879 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | STRONGSVL | OH | |
| 440-922 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | BRECKSVL | OH | |
| 440-925 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TRINITY | OH | |
| 440-947 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | HILLCREST | OH | |
| 513-234 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | MASON | OH | |
| 513-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LTL MIAMI | OH | |
| 513-337 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CINCINNATI | OH | |
| 513-642 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | HAMILTON | OH |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.