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 |
|---|---|---|---|---|---|
| 2007-09-18 | 631-993-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COMMACK | NY |
| 2007-09-17 | 631-876-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SOUTHOLD | NY |
| 2007-08-10 | 347-366-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2007-08-10 | 718-841-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN03 | NY |
| 2007-07-24 | 631-238-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MONTAUK PT | NY |
| 2007-07-24 | 631-267-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | AMAGANSETT | NY |
| 2007-07-24 | 631-315-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MATTITUCK | NY |
| 2007-07-24 | 631-593-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GREENPORT | NY |
| 2007-07-24 | 631-594-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HAMPTNBAYS | NY |
| 2007-07-24 | 631-596-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | QUOGUE | NY |
| 2007-07-24 | 631-602-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SHELTER IS | NY |
| 2007-07-24 | 631-613-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BRIDGEMPTN | NY |
| 2007-07-24 | 631-616-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PECONIC | NY |
| 2007-07-24 | 631-722-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | JAMESPORT | NY |
| 2007-07-24 | 631-898-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WESTHAMPTN | NY |
| 2007-07-24 | 845-265-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | COLDSPRING | NY |
| 2007-07-24 | 845-271-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HAVERSTRAW | NY |
| 2007-07-24 | 845-477-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | GREENWD LK | NY |
| 2007-07-24 | 845-533-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SUFFERN | NY |
| 2007-07-24 | 845-618-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SLOATSBURG | NY |
| 2007-07-24 | 845-859-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | HIGHLD FLS | NY |
| 2007-07-24 | 845-878-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PATTERSON | NY |
| 2007-07-24 | 914-301-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | KATONAH | NY |
| 2007-07-24 | 914-483-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MAHOPAC | NY |
| 2007-07-24 | 914-556-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | BIRCHWOOD | NY |
| 2007-07-24 | 914-617-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CROTON FLS | NY |
| 2007-07-24 | 914-764-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | POUNDRIDGE | NY |
| 2007-06-27 | 347-649-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-06-27 | 631-403-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PTJEFFERSN | NY |
| 2007-06-27 | 631-729-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ATLANTIC | NY |
| 2007-06-18 | 347-748-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN04 | NY |
| 2007-05-15 | 646-454-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN01 | NY |
| 2007-04-30 | 718-819-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN11 | NY |
| 2007-04-27 | 347-527-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-26 | 516-710-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN09 | NY |
| 2007-04-26 | 914-940-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ARMONK VLG | NY |
| 2007-04-24 | 347-648-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-24 | 347-648-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN08 | NY |
| 2007-04-23 | 516-308-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN09 | NY |
| 2007-04-05 | 845-402-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | PEEKSKILL | NY |
| 2007-03-23 | 347-607-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NWYRCYZN05 | NY |
| 2007-03-22 | 631-623-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | W COMMACK | 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.