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 516
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
2015-09-04 516-737-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2015-08-31 516-344-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN01 NY
2015-08-31 516-744-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN04 NY
2015-08-27 516-285-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2015-08-20 516-736-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-08-20 516-736-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-08-17 516-273-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2015-08-17 516-273-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2015-08-03 516-265-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-08-03 516-265-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-08-03 516-265-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-08-03 516-265-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-08-03 516-296-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-07-24 516-494-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C NASSAUZN09 NY
2015-07-21 516-268-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C NASSAUZN06 NY
2015-07-21 516-268-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NASSAUZN06 NY
2015-07-20 516-262-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C NASSAUZN09 NY
2015-07-10 516-737-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2015-07-10 516-737-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2015-07-08 516-261-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN08 NY
2015-07-08 516-583-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN04 NY
2015-06-29 516-667-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2015-06-17 516-370-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 FARMINGDL NY
2015-06-09 516-289-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-06-09 516-289-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-06-09 516-289-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-06-09 516-289-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-06-09 516-289-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-06-09 516-289-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2015-05-26 516-265-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2015-05-26 516-265-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2015-05-26 516-289-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2015-05-26 516-289-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2015-05-22 516-513-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 NASSAUZN08 NY
2015-05-13 516-289-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN05 NY
2015-04-23 516-447-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN07 NY
2015-04-15 516-888-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN01 NY
2015-04-01 516-268-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN06 NY
2015-04-01 516-344-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN01 NY
2015-03-27 516-344-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2015-03-24 516-447-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN07 NY
2015-03-09 516-667-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2015-03-05 516-243-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2015-03-03 516-360-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2015-03-03 516-563-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2015-03-03 516-737-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2015-03-03 516-737-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2015-03-02 516-268-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2015-03-02 516-268-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2015-03-02 516-268-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 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.