NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 646
OMNIPOINT COMMUNICATIONS, INC. - NY 1083
PAETEC ITEL, LLC 609
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 595
NEW CINGULAR WIRELESS PCS, LLC - DC 518
BANDWIDTH.COM CLEC, LLC - NY 497
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
2016-03-16 646-954-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2016-03-16 646-954-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2016-03-16 646-975-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2016-03-16 646-975-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2016-03-02 646-603-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2016-03-02 646-603-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2016-03-01 646-603-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN01 NY
2016-02-12 646-603-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2016-02-12 646-603-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 NY
2016-01-27 646-603-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-27 646-603-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-22 646-804-7XXX 7000–7999Assigned RINGSQUARED TELECOM LLC 892E NWYRCYZN01 NY
2016-01-22 646-954-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN01 NY
2016-01-20 646-966-2XXX 2000–2999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2016-01-20 646-966-3XXX 3000–3999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2016-01-19 646-618-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN01 NY
2016-01-19 646-618-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 NWYRCYZN01 NY
2016-01-19 646-975-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-19 646-975-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-19 646-975-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-19 646-975-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-19 646-975-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2016-01-11 646-618-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2016-01-11 646-966-0XXX 0000–0999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2016-01-11 646-966-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2016-01-11 646-966-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2016-01-07 646-966-4XXX 4000–4999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN01 NY
2016-01-07 646-966-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN01 NY
2016-01-07 646-966-6XXX 6000–6999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN01 NY
2016-01-07 646-966-7XXX 7000–7999Assigned CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN01 NY
2015-12-31 646-618-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2015-12-31 646-804-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2015-12-28 646-804-5XXX 5000–5999Assigned TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
2015-12-23 646-804-4XXX 4000–4999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-12-23 646-804-8XXX 8000–8999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-12-22 646-618-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2015-12-22 646-618-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2015-12-22 646-618-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2015-12-22 646-618-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2015-12-22 646-618-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2015-12-22 646-618-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
2015-12-21 646-948-0XXX 0000–0999Assigned TELXMEDIA, INC. - NY 744H NWYRCYZN01 NY
2015-12-08 646-804-0XXX 0000–0999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-12-08 646-804-1XXX 1000–1999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-12-08 646-804-2XXX 2000–2999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-12-08 646-804-3XXX 3000–3999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-12-08 646-804-9XXX 9000–9999Assigned METROPCS, INC. 5562 NWYRCYZN01 NY
2015-11-23 646-632-1XXX 1000–1999Assigned INTRADO COMMUNICATIONS, LLC 831C NWYRCYZN01 NY
2015-11-20 646-357-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NWYRCYZN01 NY
2015-11-18 646-585-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C NWYRCYZN01 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.