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
2014-05-12 516-880-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-05-12 516-880-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-05-06 516-580-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2014-04-24 516-336-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN08 NY
2014-04-15 516-252-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2014-04-03 516-231-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN04 NY
2014-04-03 516-254-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN02 NY
2014-04-03 516-259-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN03 NY
2014-04-03 516-340-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLDSPGHBR NY
2014-04-03 516-387-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASSAUZN01 NY
2014-03-27 516-254-8XXX 8000–8999Assigned INTRADO COMMUNICATIONS, LLC 831C NASSAUZN02 NY
2014-03-27 516-577-0XXX 0000–0999Assigned INTRADO COMMUNICATIONS, LLC 831C FARMINGDL NY
2014-03-27 516-597-8XXX 8000–8999Assigned INTRADO COMMUNICATIONS, LLC 831C NASSAUZN08 NY
2014-02-21 516-217-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COLDSPGHBR NY
2014-02-21 516-231-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2014-02-21 516-231-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2014-02-21 516-544-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2014-02-21 516-544-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2014-02-21 516-544-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2014-02-21 516-544-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2014-02-21 516-962-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2014-02-21 516-962-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2014-02-21 516-962-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FARMINGDL NY
2014-02-06 516-259-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C NASSAUZN03 NY
2014-01-21 516-253-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2014-01-21 516-253-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2014-01-21 516-254-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2014-01-21 516-254-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2014-01-21 516-254-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2014-01-21 516-400-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN03 NY
2014-01-16 516-210-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN07 NY
2014-01-16 516-210-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN07 NY
2014-01-16 516-243-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2014-01-16 516-246-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2014-01-16 516-246-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2014-01-16 516-387-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN01 NY
2014-01-16 516-387-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN01 NY
2014-01-16 516-500-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2014-01-16 516-500-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2014-01-16 516-595-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2014-01-16 516-595-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2014-01-16 516-595-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2014-01-16 516-597-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2014-01-15 516-243-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-01-15 516-243-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-01-15 516-243-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-01-15 516-243-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-01-15 516-243-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-01-15 516-246-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2014-01-15 516-246-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 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.