NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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
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
2004-01-09 516-301-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2004-01-09 516-385-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN05 NY
2004-01-08 516-881-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2004-01-08 516-960-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2004-01-05 516-233-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2004-01-05 516-233-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2003-12-26 516-214-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2003-12-26 516-837-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN03 NY
2003-12-19 516-208-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN06 NY
2003-12-18 516-833-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN05 NY
2003-12-18 516-949-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2003-12-18 516-949-1XXX 1000–1999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2003-12-17 516-690-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2003-12-05 516-537-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2003-12-05 516-537-3XXX 3000–3999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2003-12-05 516-554-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-554-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-554-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-554-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-554-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-554-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-554-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-12-05 516-690-3XXX 3000–3999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2003-12-05 516-945-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN04 NY
2003-12-02 516-208-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2003-11-03 516-204-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2003-11-03 516-204-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2003-11-03 516-870-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2003-11-03 516-870-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2003-11-03 516-870-6XXX 6000–6999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2003-10-23 516-478-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2003-10-23 516-478-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J NASSAUZN05 NY
2003-09-26 516-422-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 COLDSPGHBR NY
2003-09-16 516-479-1XXX 1000–1999Assigned VERIZON NEW YORK, INC. 9104 NASSAUZN05 NY
2003-09-16 516-508-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-09-16 516-508-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-09-16 516-508-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-09-16 516-508-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-09-16 516-508-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2003-09-15 516-609-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN04 NY
2003-09-15 516-704-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN08 NY
2003-08-28 516-204-2XXX 2000–2999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2003-08-28 516-204-3XXX 3000–3999Assigned METROPCS, INC. 5562 NASSAUZN03 NY
2003-08-28 516-690-0XXX 0000–0999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2003-08-28 516-690-1XXX 1000–1999Assigned METROPCS, INC. 5562 NASSAUZN06 NY
2003-08-28 516-865-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN02 NY
2003-08-28 516-865-7XXX 7000–7999Assigned METROPCS, INC. 5562 NASSAUZN02 NY
2003-08-28 516-945-4XXX 4000–4999Assigned METROPCS, INC. 5562 NASSAUZN04 NY
2003-08-28 516-945-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN04 NY
2003-08-25 516-224-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J COLDSPGHBR 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.