NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

76 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
T-MOBILE USA, INC. 76
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
AssignedBlockAssigneeOCNRate centerState
2006-02-22 219-880-3XXX T-MOBILE USA, INC. 6529 GARY IN
2006-02-22 219-880-5XXX T-MOBILE USA, INC. 6529 GARY IN
2006-02-22 405-625-0XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-02-22 405-625-1XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-02-22 580-458-1XXX T-MOBILE USA, INC. 6529 LAWTON OK
2006-02-21 520-838-1XXX T-MOBILE USA, INC. 6529 TUCSON AZ
2006-02-21 801-471-8XXX T-MOBILE USA, INC. 6529 PROVO UT
2006-02-21 928-503-8XXX T-MOBILE USA, INC. 6529 YUMA AZ
2006-02-20 310-760-6XXX T-MOBILE USA, INC. 6529 EL SEGUNDO CA
2006-02-20 310-793-6XXX T-MOBILE USA, INC. 6529 REDONDO CA
2006-02-20 310-796-6XXX T-MOBILE USA, INC. 6529 REDONDO CA
2006-02-20 310-886-9XXX T-MOBILE USA, INC. 6529 CMTN CMTN CA
2006-02-20 323-423-4XXX T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2006-02-20 619-270-6XXX T-MOBILE USA, INC. 6529 EL CAJON CA
2006-02-20 818-658-0XXX T-MOBILE USA, INC. 6529 LACRSCENTA CA
2006-02-20 909-694-6XXX T-MOBILE USA, INC. 6529 UPLAND CA
2006-02-20 909-694-7XXX T-MOBILE USA, INC. 6529 UPLAND CA
2006-02-20 909-694-8XXX T-MOBILE USA, INC. 6529 UPLAND CA
2006-02-20 909-694-9XXX T-MOBILE USA, INC. 6529 UPLAND CA
2006-02-20 937-830-8XXX T-MOBILE USA, INC. 6529 DAYTON OH
2006-02-20 951-796-0XXX T-MOBILE USA, INC. 6529 PERRIS CA
2006-02-20 951-796-1XXX T-MOBILE USA, INC. 6529 PERRIS CA
2006-02-20 951-796-2XXX T-MOBILE USA, INC. 6529 PERRIS CA
2006-02-17 760-673-8XXX T-MOBILE USA, INC. 6529 PALM SPG CA
2006-02-17 773-299-5XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2006-02-17 773-867-9XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2006-02-17 808-628-1XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2006-02-17 814-218-8XXX T-MOBILE USA, INC. 6529 ERIE PA
2006-02-17 815-209-4XXX T-MOBILE USA, INC. 6529 ROCKFORD IL
2006-02-17 915-313-1XXX T-MOBILE USA, INC. 6529 EL PASO TX
2006-02-17 951-275-7XXX T-MOBILE USA, INC. 6529 RIVERSIDE CA
2006-02-16 254-231-9XXX T-MOBILE USA, INC. 6529 TEMPLE TX
2006-02-16 254-415-9XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2006-02-16 325-864-7XXX T-MOBILE USA, INC. 6529 ABILENE TX
2006-02-16 425-591-0XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2006-02-16 510-542-3XXX T-MOBILE USA, INC. 6529 OKLD BKLY CA
2006-02-16 814-218-7XXX T-MOBILE USA, INC. 6529 ERIE PA
2006-02-16 815-867-1XXX T-MOBILE USA, INC. 6529 PONTIAC IL
2006-02-16 903-705-9XXX T-MOBILE USA, INC. 6529 TYLER TX
2006-02-16 940-297-9XXX T-MOBILE USA, INC. 6529 DENTON TX
2006-02-15 360-719-9XXX T-MOBILE USA, INC. 6529 VANCOUVER WA
2006-02-15 425-533-8XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2006-02-15 530-566-4XXX T-MOBILE USA, INC. 6529 CHICO CA
2006-02-15 575-302-4XXX T-MOBILE USA, INC. 6529 CARLSBAD NM
2006-02-15 575-680-5XXX T-MOBILE USA, INC. 6529 LAS CRUCES NM
2006-02-15 619-808-4XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2006-02-15 626-234-5XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2006-02-15 626-234-7XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2006-02-15 626-234-8XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2006-02-15 661-817-2XXX T-MOBILE USA, INC. 6529 BKFD MAIN CA

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.