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 737
METROPCS, INC. 44
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
2026-06-11 737-353-4XXX 4000–4999Assigned METROPCS, INC. 5562 BUDA TX
2026-06-11 737-405-4XXX 4000–4999Assigned METROPCS, INC. 5562 KYLE TX
2026-06-11 737-422-4XXX 4000–4999Assigned METROPCS, INC. 5562 SAN MARCOS TX
2026-05-18 737-337-9XXX 9000–9999Assigned METROPCS, INC. 5562 FENTRESS TX
2026-05-18 737-448-9XXX 9000–9999Assigned METROPCS, INC. 5562 DRIPPNGSPG TX
2021-08-16 737-232-1XXX 1000–1999Assigned METROPCS, INC. 5562 ELGIN TX
2021-07-01 737-828-8XXX 8000–8999Assigned METROPCS, INC. 5562 KEMPNER TX
2021-04-15 737-864-4XXX 4000–4999Assigned METROPCS, INC. 5562 TAYLOR TX
2021-04-06 737-766-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEANDER TX
2020-12-09 737-766-0XXX 0000–0999Assigned METROPCS, INC. 5562 LEANDER TX
2020-03-18 737-348-7XXX 7000–7999Assigned METROPCS, INC. 5562 BASTROP TX
2020-01-24 737-758-8XXX 8000–8999Assigned METROPCS, INC. 5562 KEMPNER TX
2020-01-02 737-264-9XXX 9000–9999Assigned METROPCS, INC. 5562 LOCKHART TX
2018-03-29 737-881-4XXX 4000–4999Assigned METROPCS, INC. 5562 BASTROP TX
2017-05-31 737-225-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROCKDALE TX
2017-05-31 737-225-7XXX 7000–7999Assigned METROPCS, INC. 5562 ROCKDALE TX
2016-07-08 737-400-3XXX 3000–3999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-07-08 737-400-7XXX 7000–7999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-07-08 737-400-8XXX 8000–8999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-07-08 737-701-3XXX 3000–3999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-07-08 737-708-5XXX 5000–5999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-05-19 737-302-9XXX 9000–9999Assigned METROPCS, INC. 5562 SMITHVILLE TX
2016-05-19 737-747-0XXX 0000–0999Assigned METROPCS, INC. 5562 BURNET TX
2016-05-19 737-747-9XXX 9000–9999Assigned METROPCS, INC. 5562 BURNET TX
2016-04-01 737-618-7XXX 7000–7999Assigned METROPCS, INC. 5562 LAMPASAS TX
2016-04-01 737-618-8XXX 8000–8999Assigned METROPCS, INC. 5562 LAMPASAS TX
2016-02-26 737-708-4XXX 4000–4999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-02-26 737-717-1XXX 1000–1999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-02-26 737-717-2XXX 2000–2999Assigned METROPCS, INC. 5562 AUSTIN TX
2016-02-26 737-717-7XXX 7000–7999Assigned METROPCS, INC. 5562 AUSTIN TX
2015-12-03 737-843-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEANDER TX
2015-12-02 737-212-2XXX 2000–2999Assigned METROPCS, INC. 5562 AUSTIN TX
2015-12-02 737-708-0XXX 0000–0999Assigned METROPCS, INC. 5562 AUSTIN TX
2015-12-02 737-708-3XXX 3000–3999Assigned METROPCS, INC. 5562 AUSTIN TX
2015-09-24 737-802-0XXX 0000–0999Assigned METROPCS, INC. 5562 AUSTIN TX
2015-09-24 737-802-2XXX 2000–2999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-05-22 737-703-0XXX 0000–0999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-05-22 737-703-2XXX 2000–2999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-05-22 737-703-4XXX 4000–4999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-05-22 737-703-6XXX 6000–6999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-05-22 737-703-7XXX 7000–7999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-02-24 737-247-2XXX 2000–2999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-02-24 737-247-4XXX 4000–4999Assigned METROPCS, INC. 5562 AUSTIN TX
2014-02-24 737-247-5XXX 5000–5999Assigned METROPCS, INC. 5562 AUSTIN 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.