NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
2008-09-25 631-609-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E BRENTWOOD NY
2008-09-25 631-609-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E BRENTWOOD NY
2008-09-25 631-624-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E BRENTWOOD NY
2008-09-25 631-707-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E BRENTWOOD NY
2008-09-18 631-204-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2008-09-10 631-415-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 CENTRAISLP NY
2008-09-10 631-504-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2008-09-10 631-504-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2008-09-10 631-703-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-09-10 631-703-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-09-10 631-703-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-09-09 631-609-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-09-04 631-237-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BRIDGEMPTN NY
2008-09-04 631-350-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HUNTINGTON NY
2008-09-02 631-506-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-09-02 631-603-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-09-02 631-655-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-08-27 631-238-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E MONTAUK PT NY
2008-08-27 631-320-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E SELDEN NY
2008-08-27 631-624-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-08-27 631-624-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-08-27 631-624-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-08-27 631-624-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-08-27 631-820-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J RONKONKOMA NY
2008-08-12 631-492-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J DEER PARK NY
2008-08-11 631-539-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2008-08-11 631-953-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RIVERHEAD NY
2008-07-31 631-731-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 AMAGANSETT NY
2008-07-22 631-569-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 PATCHOGUE NY
2008-07-21 631-941-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 STONYBROOK NY
2008-07-16 631-903-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2008-07-10 631-604-1XXX 1000–1999Assigned CSC VOICE, LLC 612K E HAMPTON NY
2008-07-03 631-780-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 SMITHTOWN NY
2008-07-02 631-624-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-06-30 631-626-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-06-30 631-626-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-06-30 631-626-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2008-06-17 631-415-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 CENTRAISLP NY
2008-06-17 631-482-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2008-06-17 631-482-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2008-06-17 631-703-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-06-17 631-703-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2008-06-17 631-830-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 RIVERHEAD NY
2008-06-17 631-889-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 DEER PARK NY
2008-06-17 631-971-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J W COMMACK NY
2008-06-06 631-566-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-06-06 631-566-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-06-06 631-905-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-06-06 631-905-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2008-05-27 631-229-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.