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 682
SOUTHWESTERN BELL 62
SOUTHWESTERN BELL TELEPHONE COMPANY - TX 10
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
2016-02-25 682-385-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2016-02-25 682-385-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2015-09-22 682-320-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2015-07-01 682-707-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2015-04-28 682-549-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2015-03-13 682-314-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2015-01-06 682-314-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-11-26 682-314-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-11-26 682-314-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-11-26 682-314-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-11-26 682-314-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-07-08 682-242-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 ARLINGTON TX
2014-05-28 682-303-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2014-05-28 682-303-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 FORT WORTH TX
2013-01-28 682-582-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 WEATHERFD TX
2013-01-28 682-582-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 WEATHERFD TX
2011-09-15 682-212-0XXX 0000–0999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-1XXX 1000–1999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-2XXX 2000–2999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-3XXX 3000–3999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-4XXX 4000–4999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-5XXX 5000–5999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-6XXX 6000–6999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-7XXX 7000–7999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-8XXX 8000–8999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2011-09-15 682-212-9XXX 9000–9999Assigned SOUTHWESTERN BELL TELEPHONE COMPANY - TX 7726 KELLER TX
2010-09-09 682-388-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2010-09-09 682-388-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2010-09-09 682-388-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2010-09-09 682-388-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2010-09-09 682-388-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2010-09-09 682-388-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2010-09-09 682-388-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX

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.