NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 567
ONVOY, LLC - OH 2
EXIANT COMMUNICATIONS LLC 2
NEW CINGULAR WIRELESS PCS, LLC - IL 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 1
INTRADO COMMUNICATIONS, 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
2005-12-09 567-455-0XXX 0000–0999Assigned AMERICAN BROADBAND AND TELECOMMS COMPANY - OH 509B SYLVANIA OH
2005-12-07 567-401-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MILAN OH
2005-12-07 567-432-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NO BALTIMR OH
2005-10-19 567-356-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WAPAKONETA OH
2005-09-28 567-242-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
2005-09-28 567-242-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
2005-09-22 567-336-1XXX 1000–1999Assigned OHIO BELL TEL CO 9321 PERRYSBURG OH
2005-09-22 567-336-2XXX 2000–2999Assigned OHIO BELL TEL CO 9321 PERRYSBURG OH
2005-09-22 567-336-3XXX 3000–3999Assigned OHIO BELL TEL CO 9321 PERRYSBURG OH
2005-09-22 567-336-5XXX 5000–5999Assigned OHIO BELL TEL CO 9321 PERRYSBURG OH
2005-09-22 567-336-7XXX 7000–7999Assigned OHIO BELL TEL CO 9321 PERRYSBURG OH
2005-09-22 567-336-8XXX 8000–8999Assigned OHIO BELL TEL CO 9321 PERRYSBURG OH
2005-09-12 567-208-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FINDLAY OH
2005-09-01 567-712-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
2005-09-01 567-712-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LIMA OH
2005-08-19 567-393-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GALION OH
2005-08-19 567-393-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GALION OH
2005-08-19 567-424-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NORWALK OH
2005-08-19 567-443-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CRESTLINE OH
2005-08-10 567-703-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLLAND OH
2005-08-10 567-703-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLLAND OH
2005-08-10 567-703-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLLAND OH
2005-08-10 567-703-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLLAND OH
2005-08-09 567-203-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHLAND OH
2005-08-09 567-203-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHLAND OH
2005-08-02 567-644-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 CELINA OH
2005-07-08 567-303-0XXX 0000–0999Assigned TIER 2 COMMUNICATIONS, LLC 8168 MANSFIELD OH
2005-06-16 567-998-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SANDUSKY OH
2005-06-08 567-203-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHLAND OH
2005-06-08 567-203-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHLAND OH
2005-05-19 567-203-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHLAND OH
2005-05-16 567-202-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TOLEDO OH
2005-05-16 567-202-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TOLEDO OH
2005-04-05 567-855-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CLYDE OH
2005-04-04 567-205-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C BLOOMINGVL OH
2005-03-14 567-205-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BLOOMINGVL OH
2005-03-14 567-206-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LINDSEY OH
2005-03-14 567-246-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WHITEHOUSE OH
2005-03-14 567-281-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEW RIEGEL OH
2005-02-08 567-226-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BLUFFTON OH
2005-02-08 567-231-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CHESTERVL OH
2005-02-08 567-855-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLYDE OH
2005-01-31 567-510-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CELINA OH
2005-01-27 567-254-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 PUT IN BAY OH
2005-01-27 567-523-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NORTH STAR OH
2004-12-29 567-245-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FOSTORIA OH
2004-12-13 567-233-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MARENGO OH
2004-10-26 567-220-0XXX 0000–0999Assigned METROPCS, INC. 5562 TIFFIN OH
2004-10-12 567-202-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TOLEDO OH
2004-10-07 567-623-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HURON OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.