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
2013-03-05 516-725-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2013-03-05 516-725-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2013-01-16 516-590-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-01-16 516-590-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2012-12-21 516-200-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C NASSAUZN04 NY
2012-12-21 516-210-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C NASSAUZN07 NY
2012-12-21 516-218-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C NASSAUZN03 NY
2012-12-21 516-430-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C NASSAUZN09 NY
2012-12-21 516-595-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NASSAUZN08 NY
2012-12-21 516-666-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C NASSAUZN02 NY
2012-12-10 516-246-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2012-12-10 516-246-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2012-12-07 516-415-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2012-12-06 516-500-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2012-12-03 516-519-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2012-12-03 516-519-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2012-12-03 516-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2012-12-03 516-666-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2012-12-03 516-666-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2012-11-29 516-500-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2012-11-28 516-514-9XXX 9000–9999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2012-11-28 516-962-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 FARMINGDL NY
2012-11-15 516-519-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN02 NY
2012-11-14 516-301-9XXX 9000–9999Assigned HD CARRIER LLC 321J NASSAUZN01 NY
2012-11-14 516-370-4XXX 4000–4999Assigned HD CARRIER LLC 321J FARMINGDL NY
2012-11-14 516-370-5XXX 5000–5999Assigned IP HORIZON LLC 515J FARMINGDL NY
2012-11-14 516-370-8XXX 8000–8999Assigned IP HORIZON LLC 515J FARMINGDL NY
2012-11-14 516-370-9XXX 9000–9999Assigned IP HORIZON LLC 515J FARMINGDL NY
2012-11-14 516-472-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C NASSAUZN01 NY
2012-11-14 516-926-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NASSAUZN01 NY
2012-11-02 516-200-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C NASSAUZN04 NY
2012-10-29 516-210-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN07 NY
2012-10-29 516-210-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN07 NY
2012-10-25 516-218-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2012-10-25 516-218-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2012-10-25 516-500-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2012-10-25 516-519-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2012-10-25 516-519-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2012-10-23 516-430-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C NASSAUZN09 NY
2012-10-23 516-544-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C NASSAUZN06 NY
2012-10-23 516-597-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C NASSAUZN08 NY
2012-10-23 516-802-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NASSAUZN07 NY
2012-10-22 516-218-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C NASSAUZN03 NY
2012-10-22 516-419-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NASSAUZN05 NY
2012-10-22 516-519-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C NASSAUZN02 NY
2012-10-22 516-734-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NASSAUZN01 NY
2012-10-19 516-595-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2012-10-15 516-900-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2012-10-15 516-900-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2012-10-15 516-900-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 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.