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
2011-11-16 917-383-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-16 917-396-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C NWYRCYZN08 NY
2011-11-16 917-396-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C NWYRCYZN08 NY
2011-11-16 917-580-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-16 917-580-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-16 917-580-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-16 917-773-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-16 917-773-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-16 917-773-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C NWYRCYZN04 NY
2011-11-14 917-283-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NWYRCYZN12 NY
2011-11-14 917-831-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN14 NY
2011-11-10 917-618-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2011-11-10 917-618-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2011-11-10 917-618-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2011-11-10 917-618-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2011-11-10 917-618-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
2011-11-08 917-383-5XXX 5000–5999Assigned METROPCS, INC. 5562 NWYRCYZN04 NY
2011-11-08 917-383-6XXX 6000–6999Assigned METROPCS, INC. 5562 NWYRCYZN04 NY
2011-11-08 917-383-7XXX 7000–7999Assigned METROPCS, INC. 5562 NWYRCYZN04 NY
2011-11-01 917-436-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2011-11-01 917-436-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2011-11-01 917-436-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2011-11-01 917-436-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2011-11-01 917-436-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN07 NY
2011-11-01 917-746-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-11-01 917-746-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-10-28 917-283-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN12 NY
2011-10-28 917-283-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN12 NY
2011-10-27 917-341-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN09 NY
2011-10-27 917-792-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2011-10-27 917-792-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN03 NY
2011-10-20 917-259-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-259-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-564-0XXX 0000–0999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-564-1XXX 1000–1999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-564-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-688-0XXX 0000–0999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-688-1XXX 1000–1999Assigned CSC VOICE, LLC 612K NWYRCYZN03 NY
2011-10-20 917-688-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-20 917-792-0XXX 0000–0999Assigned METROPCS, INC. 5562 NWYRCYZN03 NY
2011-10-14 917-525-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN15 NY
2011-10-14 917-746-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-10-14 917-746-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2011-10-13 917-564-8XXX 8000–8999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN03 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.