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 |
|---|---|---|---|---|---|
| 609-526 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | BURLINGTON | NJ | |
| 609-527 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | HOPEWELL | NJ | |
| 609-528 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | MERCERVL | NJ | |
| 609-534 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | MOUNTHOLLY | NJ | |
| 609-543 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | BURLINGTON | NJ | |
| 609-621 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | PEMBERTON | NJ | |
| 609-784 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | MOUNTHOLLY | NJ | |
| 609-791 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | LAWRENCEVL | NJ | |
| 609-935 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | PENNINGTON | NJ | |
| 610-226 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | COLLEGEVL | PA | |
| 610-227 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN23 | PA | |
| 610-228 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN24 | PA | |
| 610-229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN25 | PA | |
| 610-230 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN26 | PA | |
| 610-232 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN28 | PA | |
| 610-233 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN30 | PA | |
| 610-234 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN31 | PA | |
| 610-235 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | W CHESTER | PA | |
| 610-241 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | W CHESTER | PA | |
| 610-242 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | WESTTOWN | PA | |
| 610-243 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | LENAPE | PA | |
| 610-245 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN11 | PA | |
| 610-249 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN28 | PA | |
| 610-257 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN23 | PA | |
| 610-263 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN26 | PA | |
| 610-271 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN29 | PA | |
| 610-276 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN31 | PA | |
| 610-288 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | READING | PA | |
| 610-289 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALLENTOWN | PA | |
| 610-290 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN30 | PA | |
| 610-312 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN30 | PA | |
| 610-332 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BETHLEHEM | PA | |
| 610-448 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN28 | PA | |
| 610-456 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HELLERTOWN | PA | |
| 610-465 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CATASAUQUA | PA | |
| 610-471 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN11 | PA | |
| 610-482 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHOENIXVL | PA | |
| 610-487 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | COLLEGEVL | PA | |
| 610-492 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN22 | PA | |
| 610-514 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DOWNINGTN | PA | |
| 610-523 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN25 | PA | |
| 610-540 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN28 | PA | |
| 610-552 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN24 | PA | |
| 610-560 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN28 | PA | |
| 610-571 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BATH | PA | |
| 610-572 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN21 | PA | |
| 610-592 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN30 | PA | |
| 610-601 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | CHESTERSPG | PA | |
| 610-602 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN24 | PA | |
| 610-605 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN13 | 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.