NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 325
LEVEL 3 COMMUNICATIONS, LLC - TX 68
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
2026-04-30 325-302-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BAIRD TX
2026-04-01 325-425-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROBY TX
2024-06-28 325-554-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TUSCOLA TX
2024-04-02 325-289-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2023-10-24 325-298-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2022-12-07 325-275-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2022-03-15 325-274-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2021-07-21 325-321-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COMANCHE TX
2020-05-29 325-726-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COLEMAN TX
2020-04-10 325-240-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRADY TX
2019-01-24 325-510-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROWNWOOD TX
2018-05-25 325-773-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 STAMFORD TX
2016-07-27 325-754-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WINTERS TX
2016-07-12 325-378-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 STERLINGCY TX
2016-07-12 325-392-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 OZONA TX
2016-06-27 325-396-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MENARD TX
2016-06-27 325-451-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GOLDTHWAIT TX
2016-06-27 325-853-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ELDORADO TX
2016-06-27 325-869-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EDEN TX
2016-04-28 325-213-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2015-11-12 325-271-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2015-07-22 325-899-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2015-07-15 325-284-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2015-01-28 325-603-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2014-09-16 325-276-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2014-06-23 325-455-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2014-03-25 325-939-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2014-02-11 325-603-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2013-10-31 325-269-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CLYDE TX
2013-07-10 325-603-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2013-06-20 325-750-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COLORADOCY TX
2013-06-20 325-933-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SWEETWATER TX
2013-04-24 325-766-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROSCOE TX
2012-11-12 325-515-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SNYDER TX
2012-11-12 325-718-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BALLINGER TX
2012-08-03 325-480-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2012-06-01 325-939-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2012-03-21 325-716-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2011-11-30 325-480-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2011-08-05 325-262-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2011-07-27 325-267-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2011-06-22 325-732-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PAINT ROCK TX
2011-03-15 325-455-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2009-09-10 325-272-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MERKEL TX
2009-09-09 325-269-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CLYDE TX
2008-07-16 325-340-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SAN ANGELO TX
2008-07-15 325-455-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ABILENE TX
2008-03-03 325-270-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KINGSLAND TX
2008-01-30 325-203-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROWNWOOD TX
2008-01-30 325-203-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROWNWOOD TX

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.