NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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.

Most active assignees, last 30 days — NPA 631
CSC WIRELESS, LLC 3
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2008-05-27 631-506-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 RIVERHEAD NY
2008-05-27 631-612-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2008-05-13 631-626-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-13 631-626-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-13 631-626-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-13 631-626-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-13 631-626-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-13 631-626-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-13 631-626-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-12 631-925-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NORTHPORT NY
2008-05-06 631-569-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 PATCHOGUE NY
2008-05-06 631-657-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ATLANTIC NY
2008-05-06 631-801-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 EASTPORT NY
2008-05-06 631-870-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J CENTRAISLP NY
2008-05-06 631-870-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J CENTRAISLP NY
2008-05-06 631-993-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 COMMACK NY
2008-05-02 631-245-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-02 631-478-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-05-02 631-657-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ATLANTIC NY
2008-04-29 631-715-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 CENTRAISLP NY
2008-04-24 631-703-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J AMITYVILLE NY
2008-04-22 631-578-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2008-04-22 631-578-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2008-04-17 631-618-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 YAPHANK NY
2008-04-17 631-686-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ST JAMES NY
2008-04-17 631-973-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 KINGS PARK NY
2008-04-16 631-913-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 RONKONKOMA NY
2008-04-09 631-299-1XXX 1000–1999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2008-04-03 631-870-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CENTRAISLP NY
2008-03-25 631-703-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-03-24 631-406-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SMITHTOWN NY
2008-03-18 631-625-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ORIENT NY
2008-03-14 631-619-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 RONKONKOMA NY
2008-03-14 631-935-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J HUNTINGTON NY
2008-02-27 631-578-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J YAPHANK NY
2008-02-25 631-569-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 PATCHOGUE NY
2008-02-21 631-627-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 PATCHOGUE NY
2008-02-21 631-703-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-02-19 631-922-8XXX 8000–8999Assigned CSC VOICE, LLC 612K BRENTWOOD NY
2008-02-12 631-377-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SOUTHAMPTN NY
2008-02-12 631-648-9XXX 9000–9999Assigned CSC VOICE, LLC 612K RONKONKOMA NY
2008-02-08 631-320-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E SELDEN NY
2008-02-08 631-506-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E RIVERHEAD NY
2008-02-08 631-739-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E RONKONKOMA NY
2008-02-07 631-238-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - NY 282E MONTAUK PT NY
2008-02-07 631-292-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E KINGS PARK NY
2008-02-07 631-328-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E BAY SHORE NY
2008-02-07 631-343-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E COMMACK NY
2008-02-07 631-440-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E FIREISLAND NY
2008-02-07 631-485-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E MIDLAND NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.