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 |
|---|---|---|---|---|---|
| 2004-02-20 | 740-990 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | DELAWARE | OH |
| 2003-11-11 | 937-648 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | DAYTON | OH |
| 2003-11-10 | 330-622 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | AKRON | OH |
| 2003-11-10 | 614-405 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | COLUMBUS | OH |
| 2003-08-12 | 330-397 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | YOUNGSTOWN | OH |
| 2002-09-22 | 440-310 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | COLUMBISTA | OH |
| 2002-06-26 | 740-249 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | ATHENS | OH |
| 2002-06-21 | 567-214 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | BELLEVUE | OH |
| 2002-05-06 | 419-405 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CRESTLINE | OH |
| 2002-05-06 | 419-777 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | GALION | OH |
| 2002-04-02 | 937-770 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | BROOKVILLE | OH |
| 2001-09-17 | 440-551 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | PAINESVL | OH |
| 2001-06-25 | 440-337 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CHAGRINFLS | OH |
| 2001-06-06 | 740-879 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CHESHIRCTR | OH |
| 2001-05-22 | 330-485 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | RITTMAN | OH |
| 2001-04-26 | 419-556 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | GIBSONBURG | OH |
| 2001-04-26 | 419-807 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7158 | BOWLNGGREN | OH |
| 2001-03-26 | 614-355 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | COLUMBUS | OH |
| 216-258 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-416 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-430 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-454 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TERRACE | OH | |
| 216-462 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-472 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-487 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | INDEPNDNCE | OH | |
| 216-501 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-504 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TERRACE | OH | |
| 216-588 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-606 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | INDEPNDNCE | OH | |
| 216-619 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-649 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-654 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | INDEPNDNCE | OH | |
| 216-674 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | INDEPNDNCE | OH | |
| 216-714 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | MONTRSE | OH | |
| 216-763 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TERRACE | OH | |
| 216-803 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-823 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | MONTRSE | OH | |
| 216-834 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | INDEPNDNCE | OH | |
| 216-910 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | TERRACE | OH | |
| 216-912 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-916 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-920 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-923 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-928 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-929 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 216-977 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CLEVELAND | OH | |
| 330-266 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | NO CANTON | OH | |
| 330-315 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | AKRON | OH | |
| 330-318 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | YOUNGSTOWN | OH | |
| 330-437 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | CANTON | 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.