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 715
T-MOBILE USA, INC. 68
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
2025-01-27 715-729-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TIGERTON WI
2025-01-27 715-844-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WAUPACA WI
2025-01-23 715-910-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PITTSVILLE WI
2025-01-21 715-806-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 IOLA WI
2024-02-20 715-745-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CECIL WI
2023-08-15 715-697-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2023-08-15 715-697-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2023-08-15 715-712-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2022-07-27 715-753-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MEDFORD WI
2022-04-29 715-990-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SHAWANO WI
2022-04-29 715-990-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SHAWANO WI
2022-01-09 715-860-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MARINETTE WI
2022-01-09 715-860-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MARINETTE WI
2021-10-15 715-991-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2021-10-15 715-991-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2021-06-09 715-807-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 RHINELANDR WI
2021-06-09 715-807-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RHINELANDR WI
2021-06-09 715-807-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RHINELANDR WI
2021-06-09 715-990-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SHAWANO WI
2021-04-28 715-971-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2021-04-28 715-971-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2021-04-28 715-971-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2021-04-26 715-907-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2021-04-26 715-907-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2021-04-26 715-907-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2021-02-04 715-390-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 COLBY WI
2021-02-04 715-753-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MEDFORD WI
2021-02-04 715-883-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2016-12-05 715-302-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2016-12-05 715-302-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2011-10-24 715-544-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2011-08-09 715-712-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2011-07-26 715-383-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MARSHFIELD WI
2011-02-25 715-316-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 COLBY WI
2011-02-16 715-303-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2011-02-16 715-303-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2011-02-04 715-203-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2011-02-04 715-203-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2011-02-04 715-203-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2010-03-22 715-504-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARINETTE WI
2007-07-20 715-252-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 STEVENS PT WI
2007-07-19 715-207-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARSHFIELD WI
2007-07-19 715-383-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MARSHFIELD WI
2007-07-09 715-803-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2007-07-09 715-803-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2007-07-09 715-803-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WAUSAU WI
2007-05-07 715-330-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARINETTE WI
2007-05-03 715-304-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SHAWANO WI
2007-01-26 715-697-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2006-10-13 715-223-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 COLBY WI

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.