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 |
|---|---|---|---|---|---|
| 2019-02-14 | 505-372 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | SANTA FE | NM |
| 2016-02-22 | 575-205 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | TUCUMCARI | NM |
| 2016-01-28 | 505-355 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM |
| 2016-01-28 | 575-659 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | LOVINGTON | NM |
| 2013-02-08 | 575-468 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | PORTALES | NM |
| 2007-02-13 | 575-964 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | HOBBS | NM |
| 505-346 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM | |
| 505-348 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM | |
| 505-794 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM |
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.