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 |
|---|---|---|---|---|---|
| 734-629 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | WAYNE | MI | |
| 734-661 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ANN ARBOR | MI | |
| 734-672 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | TRENTON | MI | |
| 734-742 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | LIVONIA | MI | |
| 734-743 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | LIVONIA | MI | |
| 734-744 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | LIVONIA | MI | |
| 734-758 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FLAT ROCK | MI | |
| 734-784 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROMULUS | MI | |
| 734-823 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | DUNDEE | MI | |
| 734-839 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | WHITMORELK | MI | |
| 734-869 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | CARLETON | MI | |
| 734-917 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ERIE | MI | |
| 734-922 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ANN ARBOR | MI | |
| 734-928 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | PLYMOUTH | MI | |
| 734-939 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROMULUS | MI | |
| 734-985 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | YPSILANTI | MI | |
| 734-991 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | WYANDOTTE | MI | |
| 810-213 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FLINT | MI | |
| 810-222 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BRIGHTON | MI | |
| 810-224 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BRIGHTON | MI | |
| 810-272 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | LAPEER | MI | |
| 810-275 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FLINT | MI | |
| 810-277 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | LAPEER | MI | |
| 810-368 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | CLIMTMORRS | MI | |
| 810-454 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ST CLAIR | MI | |
| 810-592 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | SANDUSKY | MI | |
| 810-597 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FLINT | MI | |
| 810-821 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ALGONAC | MI | |
| 810-852 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | BRIGHTON | MI | |
| 810-882 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | LAPEER | MI | |
| 810-885 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FENTON | MI | |
| 810-956 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | PORT HURON | MI | |
| 810-958 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | PORT HURON | MI | |
| 810-963 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | FLINT | 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.