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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-01-15 516-725-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2014-01-15 516-725-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2014-01-10 516-597-1XXX 1000–1999Assigned BARR TELL USA, INC. - NY 525G NASSAUZN08 NY
2014-01-10 516-597-2XXX 2000–2999Assigned BARR TELL USA, INC. - NY 525G NASSAUZN08 NY
2014-01-08 516-340-6XXX 6000–6999Assigned CSC VOICE, LLC 612K COLDSPGHBR NY
2013-12-25 516-441-6XXX 6000–6999Assigned IP HORIZON LLC 515J NASSAUZN01 NY
2013-12-25 516-514-8XXX 8000–8999Assigned IP HORIZON LLC 515J NASSAUZN02 NY
2013-12-20 516-210-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C NASSAUZN07 NY
2013-12-10 516-888-2XXX 2000–2999Assigned BARR TELL USA, INC. - NY 525G NASSAUZN01 NY
2013-11-27 516-262-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-11-27 516-262-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-11-19 516-597-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NASSAUZN08 NY
2013-11-15 516-210-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN07 NY
2013-11-15 516-262-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN09 NY
2013-11-15 516-544-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN06 NY
2013-10-24 516-544-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN06 NY
2013-09-30 516-321-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2013-09-30 516-321-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2013-09-30 516-321-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2013-09-30 516-321-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2013-09-30 516-321-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2013-09-30 516-595-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN08 NY
2013-09-23 516-531-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E FARMINGDL NY
2013-09-19 516-262-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-09-19 516-262-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-09-11 516-590-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2013-08-16 516-321-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN01 NY
2013-08-16 516-400-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2013-08-07 516-246-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2013-08-06 516-217-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-217-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-217-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-217-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-217-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-217-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-217-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C COLDSPGHBR NY
2013-08-06 516-243-1XXX 1000–1999Assigned IP HORIZON LLC 515J NASSAUZN05 NY
2013-08-06 516-590-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN09 NY
2013-07-30 516-206-9XXX 9000–9999Assigned IP HORIZON LLC 515J NASSAUZN06 NY
2013-07-30 516-231-0XXX 0000–0999Assigned IP HORIZON LLC 515J NASSAUZN04 NY
2013-07-30 516-666-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2013-07-30 516-666-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2013-07-30 516-725-9XXX 9000–9999Assigned IP HORIZON LLC 515J NASSAUZN02 NY
2013-07-30 516-823-7XXX 7000–7999Assigned IP HORIZON LLC 515J NASSAUZN03 NY
2013-07-18 516-473-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 FARMINGDL NY
2013-07-11 516-580-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2013-07-11 516-580-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2013-07-09 516-595-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2013-07-09 516-595-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2013-07-09 516-595-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN08 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.