NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
ONVOY, LLC- NY 4
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
2004-07-29 516-570-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN01 NY
2004-07-14 516-874-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2004-07-13 516-209-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2004-07-13 516-467-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-07-13 516-765-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2004-07-06 516-342-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN08 NY
2004-07-01 516-203-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2004-07-01 516-209-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN02 NY
2004-07-01 516-209-5XXX 5000–5999Assigned TC SYSTEMS, INC. - NY 7140 NASSAUZN02 NY
2004-07-01 516-568-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN03 NY
2004-06-29 516-342-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2004-06-29 516-342-2XXX 2000–2999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN08 NY
2004-06-29 516-342-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2004-06-29 516-467-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NASSAUZN01 NY
2004-06-24 516-467-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-05-12 516-216-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2004-05-11 516-216-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2004-05-11 516-216-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2004-05-11 516-708-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-05-11 516-837-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN03 NY
2004-05-10 516-881-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN03 NY
2004-04-27 516-708-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-04-22 516-209-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2004-04-16 516-708-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-04-16 516-765-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2004-04-09 516-213-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN05 NY
2004-04-08 516-233-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2004-04-08 516-233-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2004-04-06 516-704-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN08 NY
2004-04-05 516-301-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-03-23 516-301-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-03-15 516-864-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN07 NY
2004-03-01 516-301-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-02-18 516-473-8XXX 8000–8999Assigned METROPCS, INC. 5562 FARMINGDL NY
2004-02-10 516-663-1XXX 1000–1999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2004-02-05 516-233-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2004-02-05 516-233-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2004-02-05 516-233-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN02 NY
2004-02-05 516-385-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2004-02-05 516-385-5XXX 5000–5999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2004-02-05 516-385-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2004-02-05 516-632-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2004-02-05 516-632-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2004-02-05 516-992-0XXX 0000–0999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2004-02-05 516-992-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2004-01-27 516-403-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN04 NY
2004-01-13 516-495-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J NASSAUZN08 NY
2004-01-09 516-216-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2004-01-09 516-216-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2004-01-09 516-216-8XXX 8000–8999Assigned METROPCS, INC. 5562 NASSAUZN02 NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.