NumberResearch Membership · Data 09/25/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026

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 712
T-MOBILE USA, INC. 116
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
2025-10-24 712-554-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2025-07-31 712-554-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2025-06-12 712-554-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2025-04-08 712-832-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2025-01-14 712-831-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2024-11-07 712-831-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2024-08-13 712-371-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 IDA GROVE IA
2024-08-13 712-420-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ONAWA IA
2024-08-13 712-450-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAURENS IA
2024-08-13 712-463-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SIOUX CTR IA
2024-08-13 712-831-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAKE PARK IA
2024-08-13 712-840-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MAPLETON IA
2024-08-13 712-941-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SERGENTBLF IA
2024-07-31 712-422-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HAWARDEN IA
2024-07-30 712-337-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARNOLDS PK IA
2024-07-17 712-206-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARMSTRONG IA
2024-07-17 712-460-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROCKVALLEY IA
2023-06-13 712-870-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MOVILLE IA
2023-06-13 712-870-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MOVILLE IA
2022-05-31 712-699-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WALL LAKE IA
2022-05-31 712-699-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WALL LAKE IA
2022-02-16 712-952-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OTO IA
2022-02-14 712-827-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OTO IA
2021-05-08 712-710-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-04-09 712-509-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-03-19 712-509-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-03-19 712-509-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-03-19 712-509-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-03-19 712-509-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-03-19 712-509-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SIOUX CITY IA
2018-03-19 712-699-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WALL LAKE IA
2018-03-19 712-699-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WALL LAKE IA
2018-03-13 712-578-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HULL IA
2018-03-13 712-578-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 HULL IA
2018-03-12 712-381-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKRAPIDS IA
2018-03-12 712-381-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKRAPIDS IA
2018-03-09 712-538-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 POCAHONTAS IA
2018-03-09 712-798-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GEORGE IA
2018-03-06 712-232-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPENCER IA
2018-03-06 712-232-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SPENCER IA
2018-03-06 712-295-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PETERSON IA
2018-03-06 712-338-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILFORD IA
2018-03-06 712-338-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILFORD IA
2018-03-06 712-344-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SHELDON IA
2018-03-06 712-344-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SHELDON IA
2018-03-06 712-360-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ORANGECITY IA
2018-03-06 712-759-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SPIRITLAKE IA
2018-03-05 712-230-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HOSPERS IA
2018-03-05 712-230-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HOSPERS IA
2018-03-05 712-261-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHEROKEE IA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.