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 425
METROPCS, INC. 33
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2024-11-18 425-325-2XXX 2000–2999Assigned METROPCS, INC. 5562 BOTHELL WA
2023-07-25 425-547-1XXX 1000–1999Assigned METROPCS, INC. 5562 RENTON WA
2023-07-25 425-552-0XXX 0000–0999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2022-11-01 425-552-9XXX 9000–9999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2020-10-23 425-572-7XXX 7000–7999Assigned METROPCS, INC. 5562 RENTON WA
2020-10-23 425-981-0XXX 0000–0999Assigned METROPCS, INC. 5562 RENTON WA
2020-10-23 425-981-7XXX 7000–7999Assigned METROPCS, INC. 5562 RENTON WA
2020-07-10 425-316-7XXX 7000–7999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2019-12-18 425-572-8XXX 8000–8999Assigned METROPCS, INC. 5562 RENTON WA
2019-12-18 425-585-3XXX 3000–3999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2018-10-17 425-524-8XXX 8000–8999Assigned METROPCS, INC. 5562 RENTON WA
2018-05-09 425-948-8XXX 8000–8999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2017-11-28 425-528-3XXX 3000–3999Assigned METROPCS, INC. 5562 RENTON WA
2017-11-28 425-528-4XXX 4000–4999Assigned METROPCS, INC. 5562 RENTON WA
2017-07-27 425-970-2XXX 2000–2999Assigned METROPCS, INC. 5562 RENTON WA
2017-03-21 425-948-0XXX 0000–0999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2016-12-15 425-399-6XXX 6000–6999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2016-11-30 425-524-9XXX 9000–9999Assigned METROPCS, INC. 5562 RENTON WA
2016-06-27 425-399-3XXX 3000–3999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2016-01-20 425-399-4XXX 4000–4999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2015-12-30 425-496-3XXX 3000–3999Assigned METROPCS, INC. 5562 RENTON WA
2015-11-25 425-224-9XXX 9000–9999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2015-05-28 425-399-1XXX 1000–1999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2014-09-18 425-321-9XXX 9000–9999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2014-09-18 425-496-5XXX 5000–5999Assigned METROPCS, INC. 5562 RENTON WA
2014-07-09 425-523-2XXX 2000–2999Assigned METROPCS, INC. 5562 RENTON WA
2014-07-09 425-948-3XXX 3000–3999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2014-02-25 425-321-4XXX 4000–4999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2013-12-23 425-948-9XXX 9000–9999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2013-05-23 425-321-7XXX 7000–7999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2013-05-23 425-321-8XXX 8000–8999Assigned METROPCS, INC. 5562 SILVERLAKE WA
2013-05-23 425-496-4XXX 4000–4999Assigned METROPCS, INC. 5562 RENTON WA
2007-09-11 425-207-6XXX 6000–6999Assigned METROPCS, INC. 5562 RENTON WA

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.