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 408
METROPCS, INC. 211
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
2022-10-19 408-582-1XXX 1000–1999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2022-10-19 408-582-9XXX 9000–9999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2020-05-14 408-413-7XXX 7000–7999Assigned METROPCS, INC. 5562 GILROY CA
2019-07-31 408-366-9XXX 9000–9999Assigned METROPCS, INC. 5562 SNJS WEST CA
2018-09-13 408-544-9XXX 9000–9999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2012-07-13 408-767-3XXX 3000–3999Assigned METROPCS, INC. 5562 GILROY CA
2012-07-02 408-606-0XXX 0000–0999Assigned METROPCS, INC. 5562 SNJS WEST CA
2012-07-02 408-606-1XXX 1000–1999Assigned METROPCS, INC. 5562 SNJS WEST CA
2012-04-09 408-638-1XXX 1000–1999Assigned METROPCS, INC. 5562 SNJS WEST CA
2011-12-28 408-767-1XXX 1000–1999Assigned METROPCS, INC. 5562 GILROY CA
2011-12-22 408-630-5XXX 5000–5999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2011-12-22 408-630-6XXX 6000–6999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2011-12-22 408-630-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2011-12-22 408-767-5XXX 5000–5999Assigned METROPCS, INC. 5562 GILROY CA
2011-08-30 408-498-2XXX 2000–2999Assigned METROPCS, INC. 5562 SUNNYVALE CA
2011-08-01 408-767-9XXX 9000–9999Assigned METROPCS, INC. 5562 GILROY CA
2011-06-01 408-380-9XXX 9000–9999Assigned METROPCS, INC. 5562 SNJS WEST CA
2011-06-01 408-514-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2011-06-01 408-514-8XXX 8000–8999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2011-03-30 408-430-8XXX 8000–8999Assigned METROPCS, INC. 5562 GILROY CA
2011-02-25 408-679-6XXX 6000–6999Assigned METROPCS, INC. 5562 CAMPBELL CA
2011-02-17 408-791-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2011-02-17 408-791-5XXX 5000–5999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2011-01-25 408-658-2XXX 2000–2999Assigned METROPCS, INC. 5562 SNJS WEST CA
2011-01-25 408-658-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNJS WEST CA
2011-01-25 408-658-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNJS WEST CA
2011-01-25 408-658-5XXX 5000–5999Assigned METROPCS, INC. 5562 SNJS WEST CA
2011-01-25 408-658-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNJS WEST CA
2010-12-13 408-645-8XXX 8000–8999Assigned METROPCS, INC. 5562 SNJS WEST CA
2010-12-13 408-645-9XXX 9000–9999Assigned METROPCS, INC. 5562 SNJS WEST CA
2010-12-03 408-645-1XXX 1000–1999Assigned METROPCS, INC. 5562 SNJS WEST CA
2010-11-05 408-430-9XXX 9000–9999Assigned METROPCS, INC. 5562 GILROY CA
2010-10-14 408-430-4XXX 4000–4999Assigned METROPCS, INC. 5562 GILROY CA
2010-10-14 408-659-5XXX 5000–5999Assigned METROPCS, INC. 5562 MORGANHILL CA
2010-10-14 408-915-1XXX 1000–1999Assigned METROPCS, INC. 5562 CAMPBELL CA
2010-09-22 408-724-2XXX 2000–2999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2010-09-22 408-724-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2010-07-15 408-856-5XXX 5000–5999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2010-06-11 408-320-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNJS WEST CA
2010-05-10 408-637-3XXX 3000–3999Assigned METROPCS, INC. 5562 CAMPBELL CA
2010-05-06 408-599-6XXX 6000–6999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2010-05-05 408-520-6XXX 6000–6999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2009-09-15 408-337-7XXX 7000–7999Assigned METROPCS, INC. 5562 GILROY CA
2009-03-12 408-642-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNJS WEST CA
2009-03-12 408-660-9XXX 9000–9999Assigned METROPCS, INC. 5562 SNJS WEST CA
2009-03-12 408-912-3XXX 3000–3999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2009-03-12 408-912-4XXX 4000–4999Assigned METROPCS, INC. 5562 SNJS SOUTH CA
2009-03-11 408-706-3XXX 3000–3999Assigned METROPCS, INC. 5562 MORGANHILL CA
2009-03-10 408-770-6XXX 6000–6999Assigned METROPCS, INC. 5562 SNJS NORTH CA
2009-03-10 408-770-7XXX 7000–7999Assigned METROPCS, INC. 5562 SNJS NORTH CA

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.