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 |
|---|---|---|---|---|---|
| 248-397 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROYAL OAK | MI | |
| 248-415 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SOUTHFIELD | MI | |
| 248-430 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BIRMINGHAM | MI | |
| 248-453 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROCHESTER | MI | |
| 248-460 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | OXFORD | MI | |
| 248-461 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DRAYTON PL | MI | |
| 248-479 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FARMINGTON | MI | |
| 248-482 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FARMINGTON | MI | |
| 248-502 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BIRMINGHAM | MI | |
| 248-564 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | AUBURN HTS | MI | |
| 248-567 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | NORTHVILLE | MI | |
| 248-575 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | CLARKSTON | MI | |
| 248-581 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROYAL OAK | MI | |
| 248-654 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROYAL OAK | MI | |
| 248-659 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROCHESTER | MI | |
| 248-671 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | W BLOOMFLD | MI | |
| 248-692 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | NORTHVILLE | MI | |
| 248-694 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | COMMERCE | MI | |
| 248-697 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | NORTHVILLE | MI | |
| 248-702 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | W BLOOMFLD | MI | |
| 248-712 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BIRMINGHAM | MI | |
| 248-727 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SOUTHFIELD | MI | |
| 248-728 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SOUTHFIELD | MI | |
| 248-729 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | TROY | MI | |
| 248-744 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROYAL OAK | MI | |
| 248-748 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | MILFDWH LK | MI | |
| 248-750 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SOUTHFIELD | MI | |
| 248-764 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | TROY | MI | |
| 248-784 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SOUTHFIELD | MI | |
| 248-785 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | W BLOOMFLD | MI | |
| 248-786 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | TROY | MI | |
| 248-833 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BIRMINGHAM | MI | |
| 248-893 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FARMINGTON | MI | |
| 248-920 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | PONTIAC | MI | |
| 248-927 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | CLARKSTON | MI | |
| 248-928 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | TROY | MI | |
| 248-936 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SOUTHFIELD | MI | |
| 248-957 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FARMINGTON | MI | |
| 248-973 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | W BLOOMFLD | MI | |
| 248-985 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | W BLOOMFLD | MI | |
| 248-989 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | TROY | MI | |
| 248-991 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FARMINGTON | MI | |
| 269-258 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | WAYLAND | MI | |
| 269-941 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | ALLEGAN | MI | |
| 313-216 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DETROITZN6 | MI | |
| 313-230 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DETROITZN1 | MI | |
| 313-262 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DETROITZN1 | MI | |
| 313-286 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DETROITZN5 | MI | |
| 313-347 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DETROITZN2 | MI | |
| 313-416 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DETROITZN4 | MI |
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.