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
2010-09-10 631-594-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMPTNBAYS NY
2010-09-10 631-686-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ST JAMES NY
2010-09-10 631-823-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BAYPORT NY
2010-09-10 631-866-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BELLPORT NY
2010-09-07 631-494-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 RIVERHEAD NY
2010-09-01 631-336-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2010-08-27 631-353-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2010-08-26 631-370-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J FARMINGDL NY
2010-08-23 631-205-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2010-08-23 631-336-0XXX 0000–0999Assigned METROPCS, INC. 5562 BRENTWOOD NY
2010-08-23 631-346-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SELDEN NY
2010-08-23 631-352-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SMITHTOWN NY
2010-08-23 631-894-2XXX 2000–2999Assigned METROPCS, INC. 5562 BAY SHORE NY
2010-08-18 631-565-6XXX 6000–6999Assigned RINGSQUARED TELECOM LLC 892E AMITYVILLE NY
2010-08-16 631-209-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SHOREHAM NY
2010-08-16 631-319-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SAYVILLE NY
2010-08-16 631-486-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E W COMMACK NY
2010-08-16 631-572-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BABYLON NY
2010-08-16 631-606-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NORTHPORT NY
2010-08-16 631-629-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HUNTINGTON NY
2010-08-16 631-886-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WADING RIV NY
2010-08-04 631-319-1XXX 1000–1999Assigned CSC VOICE, LLC 612K SAYVILLE NY
2010-07-15 631-371-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STONYBROOK NY
2010-07-15 631-533-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CENTRAISLP NY
2010-07-12 631-237-1XXX 1000–1999Assigned CSC VOICE, LLC 612K BRIDGEMPTN NY
2010-07-12 631-594-5XXX 5000–5999Assigned CSC VOICE, LLC 612K HAMPTNBAYS NY
2010-07-08 631-240-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SMITHTOWN NY
2010-07-08 631-270-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2010-07-08 631-317-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E PATCHOGUE NY
2010-07-08 631-333-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E GREENPORT NY
2010-07-08 631-403-8XXX 8000–8999Assigned IP HORIZON LLC 515J PTJEFFERSN NY
2010-07-08 631-403-9XXX 9000–9999Assigned IP HORIZON LLC 515J PTJEFFERSN NY
2010-07-08 631-446-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E ISLIP NY
2010-07-08 631-485-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E MIDLAND NY
2010-07-08 631-488-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SOUTHAMPTN NY
2010-07-08 631-494-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RIVERHEAD NY
2010-07-08 631-494-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E RIVERHEAD NY
2010-07-08 631-528-7XXX 7000–7999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E KINGS PARK NY
2010-07-08 631-605-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PATCHOGUE NY
2010-07-08 631-606-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NORTHPORT NY
2010-07-08 631-618-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E YAPHANK NY
2010-07-08 631-621-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ST JAMES NY
2010-07-08 631-621-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ST JAMES NY
2010-07-08 631-623-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E W COMMACK NY
2010-07-08 631-629-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HUNTINGTON NY
2010-07-08 631-699-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SAYVILLE NY
2010-07-08 631-699-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E SAYVILLE NY
2010-07-08 631-762-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STONYBROOK NY
2010-07-08 631-762-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STONYBROOK NY
2010-07-08 631-769-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SHOREHAM 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.