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 928
METROPCS, INC. 63
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
2021-10-11 928-463-9XXX 9000–9999Assigned METROPCS, INC. 5562 PRESCOTT AZ
2021-10-08 928-981-5XXX 5000–5999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2020-10-26 928-459-1XXX 1000–1999Assigned METROPCS, INC. 5562 YUMA AZ
2020-02-04 928-250-3XXX 3000–3999Assigned METROPCS, INC. 5562 SAFFORD AZ
2020-02-04 928-250-4XXX 4000–4999Assigned METROPCS, INC. 5562 SAFFORD AZ
2020-01-25 928-256-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ
2020-01-25 928-267-8XXX 8000–8999Assigned METROPCS, INC. 5562 PAYSON AZ
2020-01-14 928-459-0XXX 0000–0999Assigned METROPCS, INC. 5562 YUMA AZ
2019-07-31 928-250-2XXX 2000–2999Assigned METROPCS, INC. 5562 SAFFORD AZ
2019-02-13 928-294-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ
2019-02-05 928-233-1XXX 1000–1999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2019-01-31 928-327-8XXX 8000–8999Assigned METROPCS, INC. 5562 PRESCOTT AZ
2019-01-17 928-294-0XXX 0000–0999Assigned METROPCS, INC. 5562 YUMA AZ
2018-05-04 928-294-8XXX 8000–8999Assigned METROPCS, INC. 5562 YUMA AZ
2018-03-05 928-256-6XXX 6000–6999Assigned METROPCS, INC. 5562 YUMA AZ
2017-11-20 928-291-8XXX 8000–8999Assigned METROPCS, INC. 5562 YUMA AZ
2016-07-27 928-256-1XXX 1000–1999Assigned METROPCS, INC. 5562 YUMA AZ
2016-07-27 928-256-2XXX 2000–2999Assigned METROPCS, INC. 5562 YUMA AZ
2016-05-24 928-241-9XXX 9000–9999Assigned METROPCS, INC. 5562 HOLBROOK AZ
2016-05-24 928-399-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEDONA AZ
2016-05-24 928-399-2XXX 2000–2999Assigned METROPCS, INC. 5562 SEDONA AZ
2016-05-24 928-421-6XXX 6000–6999Assigned METROPCS, INC. 5562 WINSLOW AZ
2016-05-24 928-517-0XXX 0000–0999Assigned METROPCS, INC. 5562 PAYSON AZ
2016-05-24 928-605-0XXX 0000–0999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2016-05-24 928-605-1XXX 1000–1999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2016-05-12 928-529-8XXX 8000–8999Assigned METROPCS, INC. 5562 KINGMAN AZ
2016-05-12 928-529-9XXX 9000–9999Assigned METROPCS, INC. 5562 KINGMAN AZ
2016-02-24 928-955-1XXX 1000–1999Assigned METROPCS, INC. 5562 YUMA AZ
2015-06-17 928-233-0XXX 0000–0999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2015-06-17 928-233-2XXX 2000–2999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2015-06-17 928-350-0XXX 0000–0999Assigned METROPCS, INC. 5562 PRESCOTT AZ
2015-06-17 928-350-9XXX 9000–9999Assigned METROPCS, INC. 5562 PRESCOTT AZ
2015-06-17 928-615-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ
2015-06-17 928-723-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ
2014-12-29 928-220-2XXX 2000–2999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2012-11-26 928-248-6XXX 6000–6999Assigned METROPCS, INC. 5562 YUMA AZ
2012-11-26 928-248-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ
2012-11-26 928-248-9XXX 9000–9999Assigned METROPCS, INC. 5562 YUMA AZ
2012-11-26 928-817-0XXX 0000–0999Assigned METROPCS, INC. 5562 YUMA AZ
2012-11-26 928-817-9XXX 9000–9999Assigned METROPCS, INC. 5562 YUMA AZ
2011-12-06 928-817-2XXX 2000–2999Assigned METROPCS, INC. 5562 YUMA AZ
2009-01-19 928-219-7XXX 7000–7999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2008-01-30 928-219-6XXX 6000–6999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2007-09-19 928-219-0XXX 0000–0999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2007-06-28 928-219-9XXX 9000–9999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2007-04-13 928-219-1XXX 1000–1999Assigned METROPCS, INC. 5562 BULLHEADCY AZ
2006-10-25 928-303-2XXX 2000–2999Assigned METROPCS, INC. 5562 KINGMAN AZ
2006-02-21 928-341-5XXX 5000–5999Assigned METROPCS, INC. 5562 YUMA AZ
2005-12-05 928-341-3XXX 3000–3999Assigned METROPCS, INC. 5562 YUMA AZ
2005-07-05 928-345-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ

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.