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 |
|---|---|---|---|---|---|
| 2005-11-04 | 631-621-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ST JAMES | NY |
| 2005-11-04 | 631-886-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WADING RIV | NY |
| 2005-11-04 | 845-746-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| 2005-11-04 | 845-746-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SPRING VLY | NY |
| 2005-11-02 | 516-717-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY |
| 2005-11-02 | 516-717-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY |
| 2005-11-02 | 516-717-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN01 | NY |
| 2005-11-02 | 914-357-2XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN04 | NY |
| 2005-11-02 | 914-885-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN01 | NY |
| 2005-11-02 | 914-885-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | WSCHSTZN01 | NY |
| 2005-10-20 | 845-531-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CARMEL | NY |
| 2005-10-17 | 631-204-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SOUTHAMPTN | NY |
| 2005-10-17 | 631-251-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAG HARBOR | NY |
| 2005-10-17 | 631-284-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | RIVERHEAD | NY |
| 2005-10-17 | 631-325-4XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | EASTPORT | NY |
| 2005-10-17 | 631-771-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | E HAMPTON | NY |
| 2005-10-17 | 845-207-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BREWSTER | NY |
| 2005-10-17 | 914-214-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | YORKTN HTS | NY |
| 2005-10-17 | 914-861-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CHAPPAQUA | NY |
| 2005-10-04 | 914-219-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | ARMONK VLG | NY |
| 2005-09-26 | 631-918-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | DEER PARK | NY |
| 2005-09-26 | 631-918-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | DEER PARK | NY |
| 2005-09-23 | 914-371-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MT VERNON | NY |
| 2005-09-23 | 914-372-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7650 | WSCHSTZN07 | NY |
| 2005-09-23 | 914-487-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | OSSINING | NY |
| 2005-09-23 | 914-530-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MT VERNON | NY |
| 2005-09-23 | 914-662-0XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MT VERNON | NY |
| 2005-09-23 | 914-662-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MT VERNON | NY |
| 2005-09-23 | 914-663-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MT VERNON | NY |
| 2005-09-21 | 631-380-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STONYBROOK | NY |
| 2005-09-21 | 631-380-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STONYBROOK | NY |
| 2005-09-21 | 631-380-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | STONYBROOK | NY |
| 2005-09-21 | 631-822-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CENTRAISLP | NY |
| 2005-09-21 | 631-822-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CENTRAISLP | NY |
| 2005-09-21 | 631-822-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | CENTRAISLP | NY |
| 2005-09-21 | 631-850-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | W COMMACK | NY |
| 2005-09-21 | 631-867-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | LINDENHST | NY |
| 2005-09-21 | 631-982-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SMITHTOWN | NY |
| 2005-09-21 | 631-982-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SMITHTOWN | NY |
| 2005-09-21 | 631-982-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SMITHTOWN | NY |
| 2005-09-21 | 631-995-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | YAPHANK | NY |
| 2005-09-21 | 631-995-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | YAPHANK | NY |
| 2005-09-21 | 845-367-5XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NANUET | NY |
| 2005-09-21 | 914-471-8XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MOUNTKISCO | NY |
| 2005-09-21 | 914-471-9XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | MOUNTKISCO | NY |
| 2005-09-20 | 516-665-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | NASSAUZN06 | NY |
| 2005-09-20 | 631-256-1XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAYVILLE | NY |
| 2005-09-20 | 631-355-7XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | BRENTWOOD | NY |
| 2005-09-20 | 631-520-6XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | AMITYVILLE | NY |
| 2005-09-20 | 631-677-3XXX | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SAYVILLE | 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.