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 |
|---|---|---|---|---|---|
| 973-457 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHATHAM | NJ | |
| 973-475 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ERSKINELKS | NJ | |
| 973-498 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | VERONA | NJ | |
| 973-530 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | ORANGE | NJ | |
| 973-547 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BELLEVILLE | NJ | |
| 973-576 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | WHIPPANY | NJ | |
| 973-577 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | LIVINGSTON | NJ | |
| 973-617 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | POMPTONLKS | NJ | |
| 973-629 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LIVINGSTON | NJ | |
| 973-630 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MORRISTOWN | NJ | |
| 973-671 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | MILLBURN | NJ | |
| 973-679 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | NEWARK | NJ | |
| 973-685 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PASSAIC | NJ | |
| 973-689 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PATERSON | NJ | |
| 973-695 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MORRISTOWN | NJ | |
| 973-735 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | NEWARK | NJ | |
| 973-741 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWARK | NJ | |
| 973-745 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PASSAIC | NJ | |
| 973-753 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | MORRISTOWN | NJ | |
| 973-780 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | BLOOMFIELD | NJ | |
| 973-787 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CALDWELL | NJ | |
| 973-788 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MILLBURN | NJ | |
| 973-789 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ORANGE | NJ | |
| 973-807 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PATERSON | NJ | |
| 973-821 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | SO ORANGE | NJ | |
| 973-830 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | CALDWELL | NJ | |
| 973-849 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWARK | NJ | |
| 973-860 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BLOOMFIELD | NJ | |
| 973-909 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOONTON | NJ | |
| 973-947 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WHIPPANY | NJ | |
| 973-995 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MT VIEW | NJ | |
| 978-202 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CONCORD | MA | |
| 978-206 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ACTON | MA | |
| 978-222 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NO READING | MA | |
| 978-224 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SALEM | MA | |
| 978-231 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLOUCESTER | MA | |
| 978-246 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MAYNARD | MA | |
| 978-254 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CONCORD | MA | |
| 978-259 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOWELL | MA | |
| 978-278 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PEABODY | MA | |
| 978-298 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MAYNARD | MA | |
| 978-299 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLY | MA | |
| 978-334 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GARDNER | MA | |
| 978-336 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SALEM | MA | |
| 978-338 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLY | MA | |
| 978-339 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LITTLETON | MA | |
| 978-357 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NO READING | MA | |
| 978-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TOPSFIELD | MA | |
| 978-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HAVERHILL | MA | |
| 978-379 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LAWRENCE | MA |
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.