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
2009-09-09 631-624-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2009-09-09 631-624-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2009-09-09 631-624-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BRENTWOOD NY
2009-09-09 631-803-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BELLPORT NY
2009-09-09 631-837-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NORTHPORT NY
2009-09-09 631-954-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BAY SHORE NY
2009-09-09 631-982-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SMITHTOWN NY
2009-09-08 631-599-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2009-09-08 631-599-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2009-09-04 631-572-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2009-09-04 631-572-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2009-09-04 631-572-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BABYLON NY
2009-09-04 631-575-1XXX 1000–1999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2009-09-04 631-575-2XXX 2000–2999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2009-09-04 631-575-4XXX 4000–4999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2009-09-04 631-575-5XXX 5000–5999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2009-09-04 631-575-6XXX 6000–6999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2009-09-04 631-624-8XXX 8000–8999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2009-09-01 631-412-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 LINDENHST NY
2009-08-10 631-579-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2009-08-10 631-579-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2009-08-03 631-605-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2009-08-03 631-605-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2009-07-15 631-639-3XXX 3000–3999Assigned TC SYSTEMS, INC. - NY 7140 BRENTWOOD NY
2009-07-14 631-247-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E FARMINGDL NY
2009-07-14 631-440-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E FIREISLAND NY
2009-07-14 631-503-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E CTRMORICHS NY
2009-07-14 631-604-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. - NY 282E E HAMPTON NY
2009-07-14 631-731-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E AMAGANSETT NY
2009-07-14 631-866-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E BELLPORT NY
2009-07-09 631-377-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2009-07-07 631-655-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2009-06-29 631-494-1XXX 1000–1999Assigned RINGSQUARED TELECOM LLC 892E RIVERHEAD NY
2009-06-29 631-533-1XXX 1000–1999Assigned RINGSQUARED TELECOM LLC 892E CENTRAISLP NY
2009-06-23 631-867-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 LINDENHST NY
2009-06-22 631-579-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2009-06-22 631-605-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2009-06-12 631-410-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COMMACK NY
2009-06-11 631-488-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2009-06-10 631-494-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 RIVERHEAD NY
2009-06-10 631-572-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2009-06-09 631-638-7XXX 7000–7999Assigned VERIZON NEW YORK, INC. 9104 STONYBROOK NY
2009-06-09 631-638-8XXX 8000–8999Assigned VERIZON NEW YORK, INC. 9104 STONYBROOK NY
2009-05-22 631-612-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 BABYLON NY
2009-05-20 631-565-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2009-05-20 631-699-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SAYVILLE NY
2009-05-14 631-605-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2009-05-14 631-605-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATCHOGUE NY
2009-05-13 631-229-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE NY
2009-05-13 631-691-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AMITYVILLE 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.