NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2010-03-04 516-522-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-03-04 516-522-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-02-26 516-513-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NASSAUZN08 NY
2010-02-22 516-584-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN07 NY
2010-02-22 516-777-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2010-02-12 516-360-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2010-02-09 516-730-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN07 NY
2010-02-09 516-847-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2010-01-28 516-450-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2010-01-22 516-506-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2010-01-22 516-619-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2010-01-22 516-855-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2010-01-22 516-855-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2010-01-21 516-234-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN01 NY
2010-01-21 516-308-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2010-01-21 516-324-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN09 NY
2010-01-21 516-508-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2010-01-21 516-515-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2010-01-21 516-586-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E FARMINGDL NY
2010-01-21 516-669-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2010-01-07 516-512-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-01-07 516-587-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2010-01-07 516-587-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2010-01-07 516-640-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-01-06 516-568-8XXX 8000–8999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2009-11-04 516-247-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN05 NY
2009-10-21 516-792-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN03 NY
2009-10-01 516-589-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN02 NY
2009-09-21 516-252-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2009-09-21 516-307-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2009-09-21 516-345-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN06 NY
2009-09-21 516-368-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2009-09-21 516-499-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN02 NY
2009-09-21 516-499-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN02 NY
2009-09-21 516-502-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN02 NY
2009-09-21 516-502-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN02 NY
2009-09-21 516-726-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN01 NY
2009-09-21 516-734-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN01 NY
2009-09-21 516-960-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN06 NY
2009-09-08 516-368-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2009-09-08 516-368-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2009-09-08 516-368-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2009-09-08 516-368-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2009-09-08 516-502-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2009-09-08 516-754-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2009-09-08 516-880-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2009-09-08 516-880-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2009-09-04 516-444-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2009-09-04 516-444-1XXX 1000–1999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2009-09-04 516-444-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN02 NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.