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 |
|---|---|---|---|---|---|
| 917-289 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 917-386 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY | |
| 917-423 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN14 | NY | |
| 917-438 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY | |
| 917-456 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY | |
| 917-463 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 917-464 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 917-477 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY | |
| 917-508 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN11 | NY | |
| 917-522 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 917-546 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 917-599 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY | |
| 917-621 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 917-645 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY | |
| 917-671 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY | |
| 917-677 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NWYRCYZN01 | NY | |
| 918-562 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | OWASSO | OK | |
| 918-590 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | OWASSO | OK | |
| 918-615 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | BROKENARRW | OK | |
| 918-877 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | TULSA | OK | |
| 918-878 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TULSA | OK | |
| 918-879 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | TULSA | OK | |
| 918-977 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | BARTLESVL | OK | |
| 919-234 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CARY | NC | |
| 919-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | RALEIGH | NC | |
| 919-325 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | RALEIGH | NC | |
| 919-326 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | RALEIGH | NC | |
| 919-327 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | RALEIGH | NC | |
| 919-370 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHAPELHILL | NC | |
| 919-371 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CARY-RTP | NC | |
| 919-372 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | APEX | NC | |
| 919-373 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | KNIGHTDALE | NC | |
| 919-374 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | WENDELL | NC | |
| 919-375 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | ZEBULON | NC | |
| 919-376 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | RALEIGH | NC | |
| 919-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CARY | NC | |
| 919-378 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CARY | NC | |
| 919-379 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CARY | NC | |
| 919-381 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-392 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-424 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | RALEIGH | NC | |
| 919-425 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-428 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHAPELHILL | NC | |
| 919-574 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-629 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | APEX | NC | |
| 919-674 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CARY | NC | |
| 919-679 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | KNIGHTDALE | NC | |
| 919-760 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | RALEIGH | NC | |
| 919-761 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | WAKEFOREST | NC | |
| 919-762 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | FUQUAYVRIN | NC |
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.