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 |
|---|---|---|---|---|---|
| 213-943 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 01 | CA | |
| 213-995 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LSAN DA 01 | CA | |
| 214-209 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-210 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-231 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-237 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-245 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-260 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IRVING | TX | |
| 214-261 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-273 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-283 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-291 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLANO | TX | |
| 214-292 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-347 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-414 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-416 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-438 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-461 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-530 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-540 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-556 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLANO | TX | |
| 214-560 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-561 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-572 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-624 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-722 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-775 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-889 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 214-932 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DALLAS | TX | |
| 215-220 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN2 | PA | |
| 215-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA | |
| 215-282 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA | |
| 215-294 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHLDLPHZN2 | PA | |
| 215-298 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHLDLPHZN3 | PA | |
| 215-305 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHLDLPHZN4 | PA | |
| 215-309 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA | |
| 215-315 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN39 | PA | |
| 215-316 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHLDLPHZN2 | PA | |
| 215-352 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN41 | PA | |
| 215-358 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN33 | PA | |
| 215-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN43 | PA | |
| 215-360 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN2 | PA | |
| 215-367 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN33 | PA | |
| 215-375 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN43 | PA | |
| 215-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN44 | PA | |
| 215-390 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN33 | PA | |
| 215-392 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN38 | PA | |
| 215-394 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN39 | PA | |
| 215-399 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA | |
| 215-420 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN39 | PA |
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.