NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 917
HADLO TECHNOLOGIES, LLC 1
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
2011-03-11 917-265-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-266-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-266-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-266-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-266-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-272-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-275-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-11 917-275-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-03-04 917-563-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN09 NY
2011-03-02 917-300-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN10 NY
2011-02-25 917-995-5XXX 5000–5999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2011-02-25 917-995-6XXX 6000–6999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2011-02-25 917-995-7XXX 7000–7999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2011-02-25 917-995-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2011-02-23 917-261-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2011-02-22 917-272-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-22 917-272-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-11 917-341-2XXX 2000–2999Assigned IP HORIZON LLC 515J NWYRCYZN09 NY
2011-02-11 917-383-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN04 NY
2011-02-09 917-261-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-09 917-261-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-09 917-263-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-09 917-263-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
2011-02-09 917-265-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN01 NY
2011-02-02 917-737-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN03 NY
2011-02-02 917-737-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN03 NY
2011-01-24 917-200-2XXX 2000–2999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2011-01-24 917-200-3XXX 3000–3999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2011-01-24 917-200-4XXX 4000–4999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2011-01-24 917-200-5XXX 5000–5999Assigned METROPCS, INC. 5562 NWYRCYZN07 NY
2011-01-24 917-200-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2011-01-24 917-396-0XXX 0000–0999Assigned METROPCS, INC. 5562 NWYRCYZN08 NY
2011-01-24 917-396-2XXX 2000–2999Assigned METROPCS, INC. 5562 NWYRCYZN08 NY
2011-01-24 917-396-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN08 NY
2011-01-24 917-396-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN08 NY
2011-01-12 917-387-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN12 NY
2011-01-12 917-387-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN12 NY
2011-01-12 917-396-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN08 NY
2011-01-12 917-397-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN14 NY
2011-01-12 917-563-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN09 NY
2010-12-28 917-563-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN09 NY
2010-12-21 917-397-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN14 NY
2010-12-17 917-396-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NWYRCYZN08 NY
2010-12-15 917-397-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN14 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.