NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/18/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2007-12-18 | 845-669-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHSALEM | NY |
| 2007-12-18 | 845-694-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| 2007-12-18 | 845-875-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NYACK | NY |
| 2007-12-18 | 914-219-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ARMONK VLG | NY |
| 2007-12-18 | 914-297-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MT VERNON | NY |
| 2007-12-18 | 914-355-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN03 | NY |
| 2007-12-18 | 914-361-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN02 | NY |
| 2007-12-18 | 914-488-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | OSSINING | NY |
| 2007-12-18 | 914-574-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN05 | NY |
| 2007-12-18 | 914-603-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LAKELAND | NY |
| 2007-12-18 | 914-648-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN04 | NY |
| 2007-12-18 | 914-689-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MOUNTKISCO | NY |
| 2007-12-18 | 914-920-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN01 | NY |
| 2007-11-20 | 315-303-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BALDWINSVL | NY |
| 2007-11-20 | 585-412-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CANANDAGUA | NY |
| 2007-11-20 | 716-406-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CLARENCCTR | NY |
| 2007-11-20 | 914-458-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CHAPPAQUA | NY |
| 2007-11-13 | 347-227-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN06 | NY |
| 2007-09-20 | 631-763-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLDSPGHBR | NY |
| 2007-09-20 | 631-768-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2007-09-19 | 516-629-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN04 | NY |
| 2007-09-19 | 585-627-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2007-09-19 | 585-627-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ROCHESTER | NY |
| 2007-09-18 | 516-283-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLDSPGHBR | NY |
| 2007-09-18 | 516-442-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN06 | NY |
| 2007-09-18 | 516-882-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN09 | NY |
| 2007-09-18 | 516-962-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2007-09-18 | 631-319-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAYVILLE | NY |
| 2007-09-18 | 631-320-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SELDEN | NY |
| 2007-09-18 | 631-392-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | DEER PARK | NY |
| 2007-09-18 | 631-403-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PTJEFFERSN | NY |
| 2007-09-18 | 631-446-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ISLIP | NY |
| 2007-09-18 | 631-482-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BABYLON | NY |
| 2007-09-18 | 631-485-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MIDLAND | NY |
| 2007-09-18 | 631-504-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | YAPHANK | NY |
| 2007-09-18 | 631-569-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATCHOGUE | NY |
| 2007-09-18 | 631-623-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | W COMMACK | NY |
| 2007-09-18 | 631-676-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RONKONKOMA | NY |
| 2007-09-18 | 631-686-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ST JAMES | NY |
| 2007-09-18 | 631-703-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | AMITYVILLE | NY |
| 2007-09-18 | 631-740-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RIVERHEAD | NY |
| 2007-09-18 | 631-784-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CENTRAISLP | NY |
| 2007-09-18 | 631-832-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAYPORT | NY |
| 2007-09-18 | 631-837-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHPORT | NY |
| 2007-09-18 | 631-866-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BELLPORT | NY |
| 2007-09-18 | 631-888-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LINDENHST | NY |
| 2007-09-18 | 631-941-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STONYBROOK | NY |
| 2007-09-18 | 631-954-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAY SHORE | NY |
| 2007-09-18 | 631-973-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | KINGS PARK | NY |
| 2007-09-18 | 631-982-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SMITHTOWN | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.