NumberResearch Membership · Data 09/24/2026

Recent thousands-block assignments

70 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026

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
T-MOBILE USA, INC. 70
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
2008-09-08 360-977-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2008-09-08 503-505-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PORTLAND OR
2008-09-08 541-728-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BEND OR
2008-09-08 559-475-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FRESNO CA
2008-09-08 619-718-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2008-09-08 619-718-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2008-09-08 619-718-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNDG SNDG CA
2008-09-08 858-408-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SNDG MRMS CA
2008-09-08 916-476-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2008-09-08 916-527-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WALNUT GRV CA
2008-09-05 309-779-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROCKISLAND IL
2008-09-05 801-709-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2008-09-05 801-709-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2008-09-04 505-814-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2008-09-04 505-814-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALBUQURQUE NM
2008-09-04 510-371-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FRNK MAIN CA
2008-09-04 801-615-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2008-09-04 916-667-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELK GROVE CA
2008-09-04 916-993-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SCRM NORTH CA
2008-09-03 330-942-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2008-09-03 330-942-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2008-09-03 440-278-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WICKLIFFE OH
2008-09-03 440-749-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2008-09-02 314-359-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2008-09-02 314-359-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2008-09-02 501-392-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SYVNHLSHWD AR
2008-09-02 580-890-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WEATHERFD OK
2008-09-02 630-914-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LEMONT IL
2008-09-02 636-253-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HIGH RIDGE MO
2008-09-02 806-702-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LUBBOCK TX
2008-09-02 806-702-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LUBBOCK TX
2008-09-02 814-384-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ERIE PA
2008-09-02 814-384-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ERIE PA
2008-09-02 847-532-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2008-09-02 847-532-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALGONQUIN IL
2008-09-02 918-574-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TULSA OK
2008-08-28 217-974-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2008-08-28 224-730-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ZION IL
2008-08-28 630-999-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SUGARGROVE IL
2008-08-28 630-999-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SUGARGROVE IL
2008-08-27 210-461-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2008-08-27 210-461-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2008-08-27 210-461-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2008-08-27 210-461-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2008-08-27 213-261-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2008-08-27 217-255-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2008-08-27 254-413-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 STEPHENVL TX
2008-08-27 304-916-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PRKRSBGZN1 WV
2008-08-27 309-669-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PEORIA IL
2008-08-27 469-278-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GRANDPRARI TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.