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 |
|---|---|---|---|---|---|
| 919-763 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CLAYTON | NC | |
| 919-764 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CREEDMOOR | NC | |
| 919-765 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-767 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-768 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 919-927 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | DURHAM | NC | |
| 925-223 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLEASANTON | CA | |
| 925-226 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLEASANTON | CA | |
| 925-237 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ANTIOCH | CA | |
| 925-241 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUBLN-SNRM | CA | |
| 925-255 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ORINDA | CA | |
| 925-257 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ORINDA | CA | |
| 925-259 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ORINDA | CA | |
| 925-267 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PITTSBURG | CA | |
| 925-268 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MORAGA | CA | |
| 925-269 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MARTINEZ | CA | |
| 925-273 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LIVERMORE | CA | |
| 925-276 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAYTON | CA | |
| 925-282 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAFAYETTE | CA | |
| 925-291 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PSBG WEST | CA | |
| 925-297 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAFAYETTE | CA | |
| 925-298 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LAFAYETTE | CA | |
| 925-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BSHP RNCH | CA | |
| 925-364 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DUBLN-SNRM | CA | |
| 925-374 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MARTINEZ | CA | |
| 925-401 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLEASANTON | CA | |
| 925-402 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ORINDA | CA | |
| 925-403 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAFAYETTE | CA | |
| 925-404 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUBLN-SNRM | CA | |
| 925-405 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CONCORD | CA | |
| 925-406 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DANVILLE | CA | |
| 925-407 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALNUT CRK | CA | |
| 925-453 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LIVERMORE | CA | |
| 925-553 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DANVILLE | CA | |
| 925-557 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DUBLN-SNRM | CA | |
| 925-558 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUBLN-SNRM | CA | |
| 925-626 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ECONTRCOST | CA | |
| 925-690 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLAYTON | CA | |
| 925-694 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLEASANTON | CA | |
| 925-738 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLEASANTON | CA | |
| 925-750 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLEASANTON | CA | |
| 925-752 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ANTIOCH | CA | |
| 925-807 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BSHP RNCH | CA | |
| 925-822 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CONCORD | CA | |
| 925-826 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CONCORD | CA | |
| 925-854 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DANVILLE | CA | |
| 925-856 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DANVILLE | CA | |
| 925-948 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | WALNUT CRK | CA | |
| 925-951 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALNUT CRK | CA | |
| 925-956 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WALNUT CRK | CA |
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.