NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 334-440

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 334-440 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 334 blocks

Most active assignees, all time — NPA 334
POWERTEL BIRMINGHAM LICENSES, INC. 5
BANDWIDTH.COM CLEC, LLC - AL 3
ONVOY SPECTRUM, LLC 1
LEVEL 3 COMMUNICATIONS, LLC - AL 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
2022-12-20 334-440-0XXX 0000–0999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 MONTGOMERY AL
2022-12-20 334-440-1XXX 1000–1999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 MONTGOMERY AL
2023-07-18 334-440-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H MONTGOMERY AL
2013-02-04 334-440-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MONTGOMERY AL
2011-01-06 334-440-4XXX 4000–4999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 MONTGOMERY AL
2011-01-06 334-440-5XXX 5000–5999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 MONTGOMERY AL
2013-02-04 334-440-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MONTGOMERY AL
2013-02-04 334-440-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MONTGOMERY AL
2013-03-13 334-440-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONTGOMERY AL
2009-10-30 334-440-9XXX 9000–9999Assigned POWERTEL BIRMINGHAM LICENSES, INC. 7475 MONTGOMERY AL

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.