NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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 |
|---|---|---|---|---|---|
| 562-249 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAKEWOOD | CA | |
| 562-271 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PICORIVERA | CA | |
| 562-274 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NORWALK | CA | |
| 562-275 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAKEWOOD | CA | |
| 562-276 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LONG BEACH | CA | |
| 562-279 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LONG BEACH | CA | |
| 562-298 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHITTIER | CA | |
| 562-309 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHITTIER | CA | |
| 562-319 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DOWNEY | CA | |
| 562-340 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ALAMITOS | CA | |
| 562-343 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ALAMITOS | CA | |
| 562-370 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALAMITOS | CA | |
| 562-371 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA HABRA | CA | |
| 562-372 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DOWNEY | CA | |
| 562-373 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PICORIVERA | CA | |
| 562-382 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | DOWNEY | CA | |
| 562-383 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA HABRA | CA | |
| 562-384 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LAKEWOOD | CA | |
| 562-506 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LONG BEACH | CA | |
| 562-528 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LONG BEACH | CA | |
| 562-536 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHITTIER | CA | |
| 562-546 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALAMITOS | CA | |
| 562-565 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | NORWALK | CA | |
| 562-566 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | PICORIVERA | CA | |
| 562-567 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | WHITTIER | CA | |
| 562-582 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN CMTN | CA | |
| 562-689 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA HABRA | CA | |
| 562-733 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LONG BEACH | CA | |
| 562-741 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NORWALK | CA | |
| 562-748 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CMTN CMTN | CA | |
| 562-791 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | CMTN CMTN | CA | |
| 562-894 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CMTN CMTN | CA | |
| 562-967 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHITTIER | CA | |
| 570-317 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | BLOOMSBURG | PA | |
| 570-338 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KINGSTON | PA | |
| 570-397 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | JERMYN | PA | |
| 570-456 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MOOSIC | PA | |
| 570-483 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OLYPHANT | PA | |
| 570-504 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SCRANTON | PA | |
| 570-521 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | JERMYN | PA | |
| 570-543 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TAYLOR | PA | |
| 570-606 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WILKSBARRE | PA | |
| 570-694 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WYOMING | PA | |
| 570-843 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MOSCOW | PA | |
| 570-908 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PITTSTON | PA | |
| 571-382 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN17 | VA | |
| 571-448 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ENGLESIDE | VA | |
| 571-557 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN08 | VA | |
| 571-558 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSNGTNZN08 | VA | |
| 573-563 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | FTLENARDWD | MO |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.