NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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, last 30 days — NPA 580
T-MOBILE USA, INC. 1
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
2026-09-10 580-386-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAVIS OK
2026-06-16 580-672-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MADILL OK
2026-06-16 580-872-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MADILL OK
2026-06-09 580-754-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GUYMON OK
2026-06-02 580-640-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TISHOMINGO OK
2026-06-02 580-640-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TISHOMINGO OK
2026-05-21 580-787-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BOISE CITY OK
2026-05-20 580-557-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TONKAWA OK
2026-05-20 580-615-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2026-04-23 580-608-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 KINGSTON OK
2026-04-16 580-640-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TISHOMINGO OK
2026-04-16 580-672-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MADILL OK
2026-04-03 580-513-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ATOKA OK
2025-10-17 580-359-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2025-08-05 580-826-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2025-06-26 580-826-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2025-05-16 580-359-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2025-05-16 580-359-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2025-03-21 580-219-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TISHOMINGO OK
2025-03-21 580-258-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 COALGATE OK
2025-03-21 580-271-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANTLERS OK
2025-03-21 580-305-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 FREDERICK OK
2025-03-21 580-312-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BROKEN BOW OK
2025-03-21 580-316-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MADILL OK
2025-03-21 580-368-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DAVIS OK
2025-03-21 580-378-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ATOKA OK
2025-03-21 580-407-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 IDABEL OK
2025-03-21 580-451-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DOUGHERTY OK
2025-03-21 580-567-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WILLOW OK
2025-03-21 580-586-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAURIKA OK
2025-03-21 580-590-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HOLLIS OK
2025-03-21 580-755-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RANDLETT OK
2025-03-21 580-841-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DUKE OK
2025-03-21 580-842-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VINSON OK
2025-03-21 580-843-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MARTHA OK
2025-03-21 580-969-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HUGO OK
2025-03-20 580-264-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HEALDTON OK
2025-03-20 580-608-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KINGSTON OK
2025-03-07 580-359-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2024-10-04 580-359-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2024-10-04 580-818-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-08-24 580-969-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 HUGO OK
2023-07-27 580-850-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-27 580-850-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-27 580-850-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-07-27 580-850-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-04-07 580-826-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2023-04-07 580-826-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARDMORE OK
2022-10-21 580-615-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DURANT OK
2022-07-27 580-469-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAYRE OK

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.