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
2009-02-27 516-522-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2009-02-27 516-537-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2009-02-27 516-610-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2009-02-27 516-669-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2009-02-27 516-690-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2009-02-27 516-690-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2009-02-11 516-653-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2009-02-11 516-653-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2009-01-30 516-710-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2009-01-08 516-491-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2009-01-08 516-491-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2008-12-03 516-408-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2008-11-14 516-308-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN09 NY
2008-11-07 516-307-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2008-11-07 516-307-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2008-11-06 516-204-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN03 NY
2008-11-06 516-880-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2008-11-03 516-586-6XXX 6000–6999Assigned CSC VOICE, LLC 612K FARMINGDL NY
2008-10-14 516-284-9XXX 9000–9999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2008-10-14 516-308-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2008-10-14 516-499-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2008-10-01 516-451-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2008-10-01 516-451-1XXX 1000–1999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2008-10-01 516-451-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2008-10-01 516-451-3XXX 3000–3999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2008-10-01 516-451-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2008-10-01 516-451-9XXX 9000–9999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2008-09-30 516-823-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN03 NY
2008-09-22 516-723-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN04 NY
2008-09-17 516-234-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-09-17 516-234-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-09-10 516-469-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-09-10 516-469-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-09-10 516-469-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-09-10 516-813-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2008-09-10 516-870-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2008-09-09 516-462-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2008-09-09 516-462-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2008-09-02 516-255-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2008-08-27 516-422-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - NY 282E COLDSPGHBR NY
2008-08-27 516-422-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E COLDSPGHBR NY
2008-08-27 516-515-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2008-08-27 516-515-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2008-08-27 516-554-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2008-08-27 516-554-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2008-08-27 516-855-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN06 NY
2008-08-21 516-320-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2008-08-21 516-629-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J NASSAUZN04 NY
2008-08-21 516-686-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NASSAUZN04 NY
2008-08-19 516-441-5XXX 5000–5999Assigned CSC VOICE, LLC 612K 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.