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 580
UNITED STATES CELLULAR - OK 59
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
2025-02-18 580-214-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-214-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-214-4XXX 4000–4999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-214-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-214-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-214-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-214-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-275-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-275-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-275-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-383-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-383-1XXX 1000–1999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-383-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-383-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-383-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-547-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-547-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-547-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-715-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2025-02-18 580-715-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2020-09-08 580-271-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OK 6272 ANTLERS OK
2016-07-19 580-236-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 BROKEN BOW OK
2015-10-13 580-258-4XXX 4000–4999Assigned UNITED STATES CELLULAR - OK 6272 COALGATE OK
2015-07-30 580-624-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 KINGSTON OK
2014-03-12 580-247-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 DAVIS OK
2014-02-28 580-317-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 HUGO OK
2014-02-27 580-755-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 RANDLETT OK
2014-02-25 580-257-1XXX 1000–1999Assigned UNITED STATES CELLULAR - OK 6272 TISHOMINGO OK
2014-02-25 580-816-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OK 6272 WEATHERFD OK
2014-02-21 580-264-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 HEALDTON OK
2012-09-24 580-236-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 BROKEN BOW OK
2012-06-26 580-665-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 ADA OK
2012-06-19 580-236-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 BROKEN BOW OK
2011-07-08 580-775-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 DURANT OK
2011-03-23 580-372-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 HUGO OK
2011-01-11 580-453-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 ADA OK
2010-06-30 580-572-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 PERRY OK
2009-12-09 580-603-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 ENID OK
2009-09-08 580-372-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 HUGO OK
2009-02-19 580-279-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OK 6272 ADA OK
2007-10-19 580-559-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 ADA OK
2007-05-01 580-606-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OK 6272 DUNCAN OK
2007-03-30 580-208-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 IDABEL OK
2007-02-15 580-372-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OK 6272 HUGO OK
2006-09-22 580-303-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OK 6272 ELK CITY OK
2006-09-22 580-547-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OK 6272 CLINTON OK
2006-09-22 580-816-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 WEATHERFD OK
2006-06-07 580-606-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OK 6272 DUNCAN OK
2005-10-19 580-222-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OK 6272 ARDMORE OK
2004-10-08 580-317-6XXX 6000–6999Assigned UNITED STATES CELLULAR - OK 6272 HUGO OK

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.