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
2008-05-06 516-303-7XXX 7000–7999Assigned XCHANGE TELECOM CORP. - NY 325B NASSAUZN01 NY
2008-05-06 516-303-8XXX 8000–8999Assigned XCHANGE TELECOM CORP. - NY 325B NASSAUZN01 NY
2008-04-24 516-422-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - NY 282E COLDSPGHBR NY
2008-04-17 516-801-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN04 NY
2008-04-09 516-813-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2008-04-03 516-277-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NASSAUZN04 NY
2008-04-03 516-368-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2008-04-03 516-368-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2008-03-24 516-300-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2008-03-24 516-303-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-03-14 516-472-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NASSAUZN01 NY
2008-03-03 516-543-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN06 NY
2008-03-03 516-986-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 FARMINGDL NY
2008-02-26 516-830-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2008-02-21 516-300-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-02-21 516-468-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2008-02-21 516-506-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2008-02-19 516-307-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2008-02-19 516-307-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2008-02-12 516-861-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN08 NY
2008-02-12 516-861-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN08 NY
2008-02-12 516-934-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2008-02-07 516-252-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2008-02-07 516-300-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN01 NY
2008-02-07 516-442-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN06 NY
2008-02-07 516-495-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN08 NY
2008-02-07 516-847-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - NY 282E FARMINGDL NY
2008-02-04 516-303-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-02-04 516-304-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-02-04 516-368-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2008-01-31 516-468-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN09 NY
2008-01-31 516-468-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN09 NY
2008-01-31 516-531-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 FARMINGDL NY
2008-01-31 516-686-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN04 NY
2008-01-25 516-802-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NASSAUZN07 NY
2008-01-21 516-252-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2008-01-21 516-252-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2008-01-21 516-629-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN04 NY
2008-01-07 516-492-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2008-01-07 516-492-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2008-01-07 516-492-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2008-01-04 516-468-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2008-01-04 516-717-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2008-01-04 516-806-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2008-01-04 516-806-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-12-27 516-468-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2007-12-14 516-303-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2007-12-14 516-568-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2007-12-04 516-307-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2007-12-04 516-628-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN07 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.