NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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
ONVOY, LLC- NY 4
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
2007-08-10 516-308-3XXX 3000–3999Assigned CSC VOICE, LLC 612K NASSAUZN09 NY
2007-08-10 516-308-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN09 NY
2007-08-10 516-612-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN03 NY
2007-08-10 516-612-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2007-07-31 516-442-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-07-31 516-442-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-07-31 516-605-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2007-07-19 516-304-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2007-07-19 516-710-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2007-07-18 516-304-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NASSAUZN01 NY
2007-07-18 516-502-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2007-07-17 516-543-1XXX 1000–1999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2007-07-17 516-543-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2007-07-17 516-813-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2007-07-05 516-491-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2007-07-03 516-673-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-07-03 516-673-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-07-02 516-491-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2007-06-29 516-422-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - NY 282E COLDSPGHBR NY
2007-06-27 516-612-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2007-06-26 516-860-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-06-12 516-307-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2007-06-12 516-307-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2007-06-11 516-304-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2007-06-07 516-279-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2007-06-07 516-279-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2007-06-07 516-543-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN06 NY
2007-06-06 516-490-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2007-06-05 516-280-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2007-06-05 516-280-3XXX 3000–3999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2007-06-05 516-280-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2007-06-04 516-586-8XXX 8000–8999Assigned CSC VOICE, LLC 612K FARMINGDL NY
2007-06-04 516-612-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2007-06-04 516-612-3XXX 3000–3999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2007-05-24 516-949-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2007-05-17 516-300-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2007-05-17 516-710-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2007-05-17 516-860-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-05-17 516-870-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NASSAUZN08 NY
2007-05-10 516-279-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2007-05-10 516-305-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-05-10 516-305-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-05-10 516-491-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-05-08 516-368-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2007-05-07 516-495-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-04-30 516-442-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-04-30 516-442-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-04-26 516-710-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN09 NY
2007-04-23 516-308-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN09 NY
2007-04-16 516-304-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 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.