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 |
|---|---|---|---|---|---|
| 626-708 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SIERRAMADR | CA | |
| 626-709 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PUENTE | CA | |
| 626-710 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PSDN PSDN | CA | |
| 626-758 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EL MONTE | CA | |
| 626-759 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALHAMBRA | CA | |
| 626-784 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AZUSA | CA | |
| 626-802 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARCADIA | CA | |
| 626-803 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MONROVIA | CA | |
| 626-804 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AZUSA | CA | |
| 626-923 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | LA PUENTE | CA | |
| 626-956 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LA PUENTE | CA | |
| 630-203 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL | |
| 630-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | BATAVIA | IL | |
| 630-259 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROSELLE | IL | |
| 630-276 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NAPERVILLE | IL | |
| 630-282 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | LOMBARD | IL | |
| 630-286 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL | |
| 630-300 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | NAPERVILLE | IL | |
| 630-315 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHEATON | IL | |
| 630-317 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOMBARD | IL | |
| 630-324 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DOWNERSGRV | IL | |
| 630-344 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHEATON | IL | |
| 630-348 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLEN ELLYN | IL | |
| 630-366 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HINSDALE | IL | |
| 630-371 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL | |
| 630-376 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | LOMBARD | IL | |
| 630-379 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | ELMHURST | IL | |
| 630-382 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HINSDALE | IL | |
| 630-383 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | OSWEGO | IL | |
| 630-388 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | NAPERVILLE | IL | |
| 630-390 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | DOWNERSGRV | IL | |
| 630-395 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DOWNERSGRV | IL | |
| 630-433 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ELMHURST | IL | |
| 630-438 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ITASCA | IL | |
| 630-439 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROSELLE | IL | |
| 630-446 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLEN ELLYN | IL | |
| 630-454 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | BATAVIA | IL | |
| 630-463 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GENEVA | IL | |
| 630-475 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BENSENVL | IL | |
| 630-477 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | BENSENVL | IL | |
| 630-518 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | AURORA | IL | |
| 630-522 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL | |
| 630-559 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | ELMHURST | IL | |
| 630-589 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | ELMHURST | IL | |
| 630-596 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | NAPERVILLE | IL | |
| 630-597 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHEATON | IL | |
| 630-598 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | DOWNERSGRV | IL | |
| 630-599 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | LOMBARD | IL | |
| 630-622 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROSELLE | IL | |
| 630-647 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ITASCA | IL |
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.