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 334
LEVEL 3 TELECOM OF ALABAMA, LLC - AL 28
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
2016-10-05 334-747-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-10-05 334-747-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2016-09-19 334-568-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 PRATTVILLE AL
2016-06-29 334-603-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2014-11-20 334-759-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 OPELIKA AL
2013-08-29 334-758-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 AUBURN AL
2010-02-16 334-245-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2009-04-14 334-625-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2008-12-02 334-472-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 WETUMPKA AL
2008-11-26 334-595-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 PRATTVILLE AL
2005-01-26 334-460-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL
2005-01-26 334-460-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF ALABAMA, LLC - AL 7327 MONTGOMERY AL

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.