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
2010-07-12 516-513-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NASSAUZN08 NY
2010-07-12 516-630-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN01 NY
2010-07-12 516-690-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2010-07-12 516-699-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2010-07-12 516-730-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN07 NY
2010-07-12 516-823-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2010-07-12 516-953-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2010-07-07 516-632-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2010-07-06 516-214-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-07-06 516-214-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-06-25 516-325-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN02 NY
2010-06-25 516-331-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2010-06-24 516-441-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW YORK, LLC - NY 155E NASSAUZN01 NY
2010-06-24 516-726-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NASSAUZN01 NY
2010-06-04 516-214-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2010-05-28 516-323-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2010-05-28 516-323-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2010-05-28 516-323-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN06 NY
2010-05-26 516-360-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-05-26 516-360-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-05-26 516-360-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-05-26 516-360-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-05-26 516-360-8XXX 8000–8999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-05-25 516-324-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2010-05-25 516-324-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN09 NY
2010-05-25 516-367-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COLDSPGHBR NY
2010-05-25 516-495-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2010-05-25 516-605-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2010-05-25 516-619-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2010-05-25 516-619-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN03 NY
2010-05-24 516-360-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2010-05-24 516-441-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN01 NY
2010-05-24 516-554-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2010-05-24 516-693-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2010-05-24 516-693-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN05 NY
2010-05-24 516-740-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN04 NY
2010-05-03 516-203-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-05-03 516-203-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-05-03 516-360-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN02 NY
2010-05-03 516-408-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-05-03 516-408-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2010-05-03 516-513-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NASSAUZN08 NY
2010-04-15 516-858-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN01 NY
2010-03-26 516-308-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN09 NY
2010-03-12 516-270-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-03-12 516-574-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-03-12 516-589-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-03-12 516-589-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-03-12 516-830-8XXX 8000–8999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2010-03-10 516-539-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 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.