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
2011-05-10 516-497-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2011-05-04 516-240-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2011-05-04 516-240-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2011-05-04 516-350-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2011-05-04 516-385-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2011-05-04 516-406-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2011-05-04 516-406-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2011-05-04 516-479-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2011-05-03 516-415-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2011-05-03 516-415-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2011-04-29 516-366-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2011-04-29 516-366-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2011-04-29 516-828-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2011-04-29 516-939-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2011-04-29 516-939-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2011-04-29 516-939-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2011-04-28 516-362-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2011-04-28 516-399-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2011-04-28 516-405-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2011-04-28 516-405-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2011-04-28 516-405-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2011-04-28 516-406-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2011-04-28 516-406-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2011-04-28 516-535-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2011-04-28 516-670-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2011-04-28 516-699-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2011-04-28 516-712-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2011-04-28 516-712-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2011-04-28 516-986-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2011-04-28 516-986-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2011-04-28 516-986-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2011-04-26 516-350-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - NY 282E NASSAUZN05 NY
2011-04-19 516-926-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NASSAUZN01 NY
2011-03-24 516-406-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2011-03-24 516-406-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2011-03-24 516-406-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2011-03-24 516-406-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2011-03-24 516-673-3XXX 3000–3999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2011-03-18 516-405-9XXX 9000–9999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2011-03-17 516-340-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COLDSPGHBR NY
2011-03-14 516-939-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-03-14 516-943-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-03-14 516-943-1XXX 1000–1999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-03-14 516-943-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-03-14 516-943-8XXX 8000–8999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-03-10 516-515-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2011-02-23 516-943-3XXX 3000–3999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-02-23 516-943-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-02-23 516-943-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2011-02-23 516-943-6XXX 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.