NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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 |
|---|---|---|---|---|---|
| 510-863 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OKLD ALMD | CA | |
| 510-875 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OKLD TRNID | CA | |
| 510-877 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OKLD TRNID | CA | |
| 510-957 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OKLD TRNID | CA | |
| 510-982 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OKLD BKLY | CA | |
| 512-233 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-275 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-384 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-651 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-652 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-692 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-697 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-721 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-726 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 512-853 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | AUSTIN | TX | |
| 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 | |
| 513-699 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CINCINNATI | OH | |
| 513-712 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | BETHANY | OH | |
| 513-714 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | HAMILTON | OH | |
| 513-716 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | LTL MIAMI | OH | |
| 513-717 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | SHANDON | OH | |
| 513-718 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CLERMONT | OH | |
| 513-719 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CINCINNATI | OH | |
| 513-843 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | CLERMONT | OH | |
| 513-845 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | HARRISON | OH | |
| 513-847 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | BETHANY | OH | |
| 516-213 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY | |
| 516-214 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY | |
| 516-224 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLDSPGHBR | NY | |
| 516-240 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY | |
| 516-283 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLDSPGHBR | NY | |
| 516-303 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY | |
| 516-320 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY | |
| 516-403 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN04 | NY | |
| 516-408 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY | |
| 516-450 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NASSAUZN08 | NY | |
| 516-463 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY | |
| 516-467 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY | |
| 516-490 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN08 | NY | |
| 516-502 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN02 | NY | |
| 516-537 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN03 | NY | |
| 516-584 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN07 | NY | |
| 516-605 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN08 | NY | |
| 516-612 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN03 | NY | |
| 516-619 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN03 | NY | |
| 516-690 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN06 | NY | |
| 516-693 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN05 | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.