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 |
|---|---|---|---|---|---|
| 2005-06-27 | 631-460-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | KINGS PARK | NY |
| 2005-06-27 | 631-481-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ISLIP | NY |
| 2005-06-27 | 631-510-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MIDLAND | NY |
| 2005-06-27 | 631-892-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAY SHORE | NY |
| 2005-06-24 | 347-713-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2005-06-24 | 516-584-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN07 | NY |
| 2005-06-24 | 516-584-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN07 | NY |
| 2005-06-24 | 516-688-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN08 | NY |
| 2005-06-24 | 631-792-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BABYLON | NY |
| 2005-06-24 | 631-792-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BABYLON | NY |
| 2005-06-24 | 631-792-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BABYLON | NY |
| 2005-06-24 | 631-883-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAYPORT | NY |
| 2005-06-24 | 631-883-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAYPORT | NY |
| 2005-06-24 | 631-883-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAYPORT | NY |
| 2005-06-24 | 631-883-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BAYPORT | NY |
| 2005-06-24 | 631-913-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RONKONKOMA | NY |
| 2005-06-24 | 914-220-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN08 | NY |
| 2005-06-24 | 914-481-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | WSCHSTZN09 | NY |
| 2005-06-24 | 914-487-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | OSSINING | NY |
| 2005-06-24 | 914-612-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | WSCHSTZN09 | NY |
| 2005-06-24 | 914-612-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | WSCHSTZN09 | NY |
| 2005-06-22 | 347-602-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN05 | NY |
| 2005-06-22 | 347-602-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN05 | NY |
| 2005-06-22 | 347-751-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN05 | NY |
| 2005-06-22 | 347-905-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2005-06-22 | 516-740-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN04 | NY |
| 2005-06-22 | 516-740-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN04 | NY |
| 2005-06-22 | 516-740-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN04 | NY |
| 2005-06-22 | 631-239-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHPORT | NY |
| 2005-06-22 | 631-239-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHPORT | NY |
| 2005-06-22 | 631-270-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2005-06-22 | 631-270-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2005-06-22 | 631-270-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2005-06-22 | 631-410-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COMMACK | NY |
| 2005-06-22 | 631-410-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COMMACK | NY |
| 2005-06-22 | 631-714-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATCHOGUE | NY |
| 2005-06-22 | 631-773-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2005-06-22 | 631-773-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | FARMINGDL | NY |
| 2005-06-22 | 631-891-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATCHOGUE | NY |
| 2005-06-22 | 631-925-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NORTHPORT | NY |
| 2005-06-21 | 347-468-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2005-06-21 | 347-468-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2005-06-21 | 347-468-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2005-06-21 | 347-532-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2005-06-21 | 347-532-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN09 | NY |
| 2005-06-21 | 347-713-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2005-06-21 | 347-713-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN07 | NY |
| 2005-06-21 | 516-673-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN02 | NY |
| 2005-06-21 | 516-726-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY |
| 2005-06-21 | 516-726-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | 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.