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 |
|---|---|---|---|---|---|
| 484-631 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | W CHESTER | PA | |
| 484-637 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FLEETWOOD | PA | |
| 484-652 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN14 | PA | |
| 484-679 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN30 | PA | |
| 484-688 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN30 | PA | |
| 484-694 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DOWNINGTN | PA | |
| 484-727 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AVONDALE | PA | |
| 484-731 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | KENNETT SQ | PA | |
| 484-771 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MENDENHALL | PA | |
| 484-829 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN24 | PA | |
| 484-991 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CENTER PT | PA | |
| 501-707 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | LITTLEROCK | AR | |
| 501-708 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | LITTLEROCK | AR | |
| 503-205 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-207 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-264 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-290 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-303 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLACKAMAS | OR | |
| 503-305 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CLACKAMAS | OR | |
| 503-389 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NORTH PL | OR | |
| 503-403 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-404 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STFRD-SNDY | OR | |
| 503-405 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GRESHAM | OR | |
| 503-419 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-433 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NORTH PL | OR | |
| 503-456 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-473 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-532 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-610 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHERWOOD | OR | |
| 503-613 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-616 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-696 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-707 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-712 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-716 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEAVERTON | OR | |
| 503-745 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-820 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-821 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 503-878 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | STFRD-SNDY | OR | |
| 503-937 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PORTLAND | OR | |
| 504-218 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWORLEANS | LA | |
| 504-799 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA | 8764 | NEWORLEANS | LA | |
| 505-346 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM | |
| 505-348 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM | |
| 505-353 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALBUQURQUE | NM | |
| 505-794 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM | 7464 | ALBUQURQUE | NM | |
| 508-256 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BROCKTON | MA | |
| 508-267 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HOLDEN | MA | |
| 508-300 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FALL RIVER | MA | |
| 508-302 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FRAMINGHAM | MA |
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.