NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 440-261

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 440-261 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 440 blocks

Most active assignees, all time — NPA 440
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 3
WINDSTREAM WESTERN RESERVE, INC. 1
TWC IP ENABLED SERVICES, LLC 1
TELEPORT COMMUNICATIONS AMERICA, LLC - OH 1
ONVOY, LLC - OH 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
2013-04-02 440-261-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ASHTABULA OH
2012-08-17 440-261-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHTABULA OH
2014-08-07 440-261-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHTABULA OH
2011-09-19 440-261-3XXX 3000–3999Assigned WINDSTREAM WESTERN RESERVE, INC. 0666 ASHTABULA OH
2013-01-09 440-261-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ASHTABULA OH
2013-03-08 440-261-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C ASHTABULA OH
2013-07-16 440-261-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 ASHTABULA OH
2013-08-12 440-261-7XXX 7000–7999Assigned IP HORIZON LLC 515J ASHTABULA OH
2013-06-14 440-261-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHTABULA OH
2013-06-26 440-261-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K ASHTABULA 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.