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 979
LEVEL 3 COMMUNICATIONS, LLC - TX 93
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
2020-10-01 979-321-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2020-08-12 979-321-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2020-07-01 979-803-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BURTON TX
2020-06-18 979-321-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2019-08-28 979-315-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CALDWELL TX
2019-05-22 979-464-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 E BERNARD TX
2019-02-11 979-280-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HEARNE TX
2019-02-11 979-884-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DIME BOX TX
2019-01-22 979-310-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EAGLE LAKE TX
2018-06-05 979-205-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SWEENY TX
2017-12-22 979-317-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KURTEN TX
2017-12-22 979-317-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KURTEN TX
2017-12-22 979-317-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KURTEN TX
2017-08-11 979-250-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LA GRANGE TX
2017-08-11 979-505-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SCHULENBG TX
2017-08-11 979-725-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WEIMAR TX
2016-11-23 979-401-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BAY CITY TX
2016-06-02 979-307-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2015-09-03 979-213-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2015-07-10 979-431-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2015-04-21 979-387-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BEASLEY TX
2015-04-16 979-428-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BLNGNWGULF TX
2015-03-27 979-314-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2014-12-26 979-431-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2014-09-29 979-316-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CLTLKJCKSN TX
2014-09-29 979-627-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SEALY TX
2014-07-02 979-431-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2014-05-01 979-475-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EL CAMPO TX
2014-03-25 979-314-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2014-02-04 979-589-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KURTEN TX
2013-12-27 979-339-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GARWOOD TX
2013-07-30 979-312-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRANKLIN TX
2013-07-24 979-413-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BELLVILLE TX
2013-04-22 979-431-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2012-12-14 979-633-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COLUMBUS TX
2012-11-12 979-705-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FREEPORT TX
2012-10-25 979-307-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2012-06-12 979-314-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2012-06-06 979-212-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GIDDINGS TX
2012-01-04 979-315-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CALDWELL TX
2011-12-08 979-308-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ANGLETON TX
2011-11-04 979-353-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRENHAM TX
2011-08-03 979-431-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2011-07-27 979-307-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BRYAN TX
2011-05-05 979-227-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BELLVILLE TX
2011-05-05 979-308-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ANGLETON TX
2011-03-16 979-258-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CLTLKJCKSN TX
2011-03-16 979-705-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FREEPORT TX
2011-03-15 979-404-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FAYETTEVL TX
2010-12-15 979-488-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WHARTON 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.