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 531
METROPCS, INC. 39
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
2025-03-27 531-246-8XXX 8000–8999Assigned METROPCS, INC. 5562 SUPERIOR NE
2025-03-27 531-251-7XXX 7000–7999Assigned METROPCS, INC. 5562 DAWSON NE
2025-03-27 531-287-2XXX 2000–2999Assigned METROPCS, INC. 5562 AUBURN NE
2025-03-27 531-291-3XXX 3000–3999Assigned METROPCS, INC. 5562 CRETE NE
2025-03-27 531-302-5XXX 5000–5999Assigned METROPCS, INC. 5562 TECUMSEH NE
2025-03-27 531-328-1XXX 1000–1999Assigned METROPCS, INC. 5562 FAIRBURY NE
2025-03-27 531-362-5XXX 5000–5999Assigned METROPCS, INC. 5562 BEATRICE NE
2025-03-27 531-364-4XXX 4000–4999Assigned METROPCS, INC. 5562 GENEVA NE
2025-03-27 531-369-2XXX 2000–2999Assigned METROPCS, INC. 5562 SYRACUSE NE
2025-03-27 531-373-3XXX 3000–3999Assigned METROPCS, INC. 5562 HEBRON NE
2025-03-27 531-374-7XXX 7000–7999Assigned METROPCS, INC. 5562 VALENTINE NE
2025-03-27 531-377-7XXX 7000–7999Assigned METROPCS, INC. 5562 WAHOO NE
2025-03-27 531-388-5XXX 5000–5999Assigned METROPCS, INC. 5562 AURORA NE
2025-03-27 531-394-9XXX 9000–9999Assigned METROPCS, INC. 5562 ASHLAND NE
2025-03-26 531-223-6XXX 6000–6999Assigned METROPCS, INC. 5562 HOWELLS NE
2025-03-26 531-330-5XXX 5000–5999Assigned METROPCS, INC. 5562 WAYNE NE
2025-03-26 531-357-5XXX 5000–5999Assigned METROPCS, INC. 5562 AINSWORTH NE
2025-03-26 531-360-2XXX 2000–2999Assigned METROPCS, INC. 5562 ALBION NE
2025-03-26 531-390-9XXX 9000–9999Assigned METROPCS, INC. 5562 CREIGHTON NE
2025-03-26 531-391-9XXX 9000–9999Assigned METROPCS, INC. 5562 SCHUYLER NE
2025-03-26 531-392-9XXX 9000–9999Assigned METROPCS, INC. 5562 WEST POINT NE
2023-09-28 531-280-5XXX 5000–5999Assigned METROPCS, INC. 5562 LINCOLN NE
2021-06-22 531-265-5XXX 5000–5999Assigned METROPCS, INC. 5562 SOSIOUX CY NE
2021-02-05 531-248-1XXX 1000–1999Assigned METROPCS, INC. 5562 LINCOLN NE
2020-04-03 531-272-9XXX 9000–9999Assigned METROPCS, INC. 5562 OMAHA NE
2020-02-20 531-217-2XXX 2000–2999Assigned METROPCS, INC. 5562 PLATTSMTH NE
2019-12-31 531-541-3XXX 3000–3999Assigned METROPCS, INC. 5562 OMAHA NE
2019-12-11 531-541-2XXX 2000–2999Assigned METROPCS, INC. 5562 OMAHA NE
2019-08-06 531-867-2XXX 2000–2999Assigned METROPCS, INC. 5562 OMAHA NE
2019-06-21 531-239-9XXX 9000–9999Assigned METROPCS, INC. 5562 OMAHA NE
2018-12-12 531-389-8XXX 8000–8999Assigned METROPCS, INC. 5562 OMAHA NE
2018-12-07 531-228-1XXX 1000–1999Assigned METROPCS, INC. 5562 PLATTSMTH NE
2017-04-10 531-218-3XXX 3000–3999Assigned METROPCS, INC. 5562 LINCOLN NE
2017-04-10 531-220-2XXX 2000–2999Assigned METROPCS, INC. 5562 LINCOLN NE
2017-03-27 531-375-9XXX 9000–9999Assigned METROPCS, INC. 5562 OMAHA NE
2017-03-21 531-215-4XXX 4000–4999Assigned METROPCS, INC. 5562 OMAHA NE
2017-03-21 531-215-7XXX 7000–7999Assigned METROPCS, INC. 5562 OMAHA NE
2017-03-21 531-365-1XXX 1000–1999Assigned METROPCS, INC. 5562 OMAHA NE
2017-03-21 531-777-1XXX 1000–1999Assigned METROPCS, INC. 5562 OMAHA NE

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.