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 |
|---|---|---|---|---|---|
| 720-225 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-226 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-227 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-228 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-240 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-241 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-246 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-249 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-250 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-257 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-284 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-293 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-294 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-332 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-367 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-384 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-385 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-449 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-579 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-862 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-863 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 720-889 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DENVER | CO | |
| 724-273 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | IMPERIAL | PA | |
| 724-288 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WASHINGTON | PA | |
| 724-304 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWKNSNGTN | PA | |
| 724-315 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLENWILLRD | PA | |
| 724-390 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BADEN | PA | |
| 724-410 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SPRINGDALE | PA | |
| 724-416 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CANONSBURG | PA | |
| 724-419 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALIQUIPPA | PA | |
| 724-550 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | UNIONTOWN | PA | |
| 724-582 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLENWILLRD | PA | |
| 724-703 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OAKDALE | PA | |
| 724-754 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CANONSBURG | PA | |
| 724-904 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TARENTUM | PA | |
| 724-909 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FINLEYVL | PA | |
| 724-949 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MCMURRAY | PA | |
| 724-957 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MCMURRAY | PA | |
| 732-217 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KEYPORT | NJ | |
| 732-230 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MONMTH JCT | NJ | |
| 732-234 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SOUTHRIVER | NJ | |
| 732-301 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EMILLSTONE | NJ | |
| 732-357 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOUNDBROOK | NJ | |
| 732-362 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WOODBRIDGE | NJ | |
| 732-366 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CARTERET | NJ | |
| 732-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOUNDBROOK | NJ | |
| 732-387 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | SOUTHRIVER | NJ | |
| 732-400 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DUNELLEN | NJ |
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.