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 572
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
2026-09-10 572-252-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 YUKON OK
2026-06-09 572-356-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MAYSVILLE OK
2026-06-09 572-384-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MOORE OK
2026-04-03 572-230-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WEWOKA OK
2025-12-31 572-358-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-12-31 572-358-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-12-31 572-358-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-09-16 572-358-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-08-28 572-216-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-08-28 572-216-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-05-16 572-216-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-05-16 572-216-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2025-03-21 572-230-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WEWOKA OK
2025-03-21 572-732-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WYNNEWOOD OK
2025-03-07 572-204-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2024-10-04 572-216-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2024-07-12 572-242-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2024-07-12 572-242-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2024-07-12 572-242-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2024-07-12 572-242-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2024-06-07 572-236-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHICKASHA OK
2024-06-06 572-219-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2023-08-15 572-363-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHICKASHA OK
2023-08-15 572-363-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHICKASHA OK
2023-08-15 572-363-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHICKASHA OK
2023-08-15 572-363-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHICKASHA OK
2023-08-14 572-219-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2023-08-14 572-219-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2023-08-14 572-219-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SHAWNEE OK
2023-05-18 572-746-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BRITTON OK
2023-03-17 572-216-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2023-03-17 572-216-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-11-22 572-666-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EL RENO OK
2022-09-27 572-208-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-09-27 572-208-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-09-27 572-273-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-09-27 572-273-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-09-27 572-273-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-07-25 572-208-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-07-25 572-208-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EDMOND OK
2022-04-27 572-204-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-204-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHANDLER OK
2022-04-27 572-273-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BETHANY OK
2022-04-27 572-273-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BETHANY 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.