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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-11-20 516-303-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2007-11-20 516-501-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 FARMINGDL NY
2007-11-20 516-605-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-11-20 516-605-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-11-20 516-710-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2007-11-15 516-492-3XXX 3000–3999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2007-11-15 516-813-5XXX 5000–5999Assigned METROPCS, INC. 5562 NASSAUZN08 NY
2007-11-12 516-537-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NASSAUZN03 NY
2007-11-12 516-612-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NASSAUZN03 NY
2007-11-08 516-306-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2007-11-08 516-306-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2007-11-08 516-306-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2007-11-08 516-306-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2007-11-08 516-306-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2007-11-08 516-306-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN05 NY
2007-11-05 516-506-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN05 NY
2007-09-27 516-491-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2007-09-21 516-492-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2007-09-21 516-492-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2007-09-21 516-492-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NASSAUZN02 NY
2007-09-19 516-629-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN04 NY
2007-09-18 516-283-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 COLDSPGHBR NY
2007-09-18 516-442-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN06 NY
2007-09-18 516-882-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NASSAUZN09 NY
2007-09-18 516-962-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 FARMINGDL NY
2007-09-17 516-277-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN04 NY
2007-09-17 516-277-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN04 NY
2007-09-17 516-277-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NASSAUZN04 NY
2007-09-17 516-277-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J NASSAUZN04 NY
2007-09-17 516-280-8XXX 8000–8999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2007-09-17 516-280-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2007-09-17 516-308-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN09 NY
2007-09-17 516-442-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-09-17 516-442-3XXX 3000–3999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-09-17 516-442-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN06 NY
2007-09-17 516-442-7XXX 7000–7999Assigned CSC VOICE, LLC 612K NASSAUZN06 NY
2007-09-17 516-502-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN02 NY
2007-09-17 516-605-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2007-09-17 516-605-2XXX 2000–2999Assigned CSC VOICE, LLC 612K NASSAUZN08 NY
2007-09-11 516-300-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2007-09-11 516-710-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN09 NY
2007-09-06 516-304-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NASSAUZN01 NY
2007-09-04 516-473-5XXX 5000–5999Assigned METROPCS, INC. 5562 FARMINGDL NY
2007-08-28 516-673-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-08-28 516-673-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN02 NY
2007-08-27 516-584-6XXX 6000–6999Assigned CSC VOICE, LLC 612K NASSAUZN07 NY
2007-08-13 516-300-1XXX 1000–1999Assigned IP HORIZON LLC 515J NASSAUZN01 NY
2007-08-13 516-605-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN08 NY
2007-08-10 516-279-4XXX 4000–4999Assigned CSC VOICE, LLC 612K NASSAUZN05 NY
2007-08-10 516-279-6XXX 6000–6999Assigned CSC VOICE, LLC 612K 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.