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
Clear Download CSV ↓
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 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.