NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

59 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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. 59
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
2007-02-28 859-957-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COVINGTON KY
2007-02-27 253-876-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2007-02-27 253-876-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AUBURN WA
2007-02-27 316-300-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2007-02-27 562-206-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LONG BEACH CA
2007-02-27 708-979-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-02-27 708-979-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-02-27 708-979-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-02-27 708-979-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TINLEYPARK IL
2007-02-27 773-253-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2007-02-27 801-634-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-02-27 801-664-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-02-27 801-833-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-02-27 801-833-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-02-27 801-833-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-02-27 801-833-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SALT LAKE UT
2007-02-27 909-202-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2007-02-27 909-202-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2007-02-26 330-780-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2007-02-26 330-780-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2007-02-26 424-217-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 EL SEGUNDO CA
2007-02-26 424-217-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EL SEGUNDO CA
2007-02-26 630-923-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2007-02-26 714-487-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2007-02-26 714-487-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2007-02-26 714-487-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2007-02-26 801-928-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2007-02-26 870-519-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FORREST CY AR
2007-02-26 909-206-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-26 909-206-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-26 909-206-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2007-02-26 951-219-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MURRIETA CA
2007-02-23 360-718-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2007-02-23 512-906-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-02-23 512-906-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-02-23 512-906-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-02-23 512-906-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-02-23 512-906-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2007-02-23 562-373-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PICORIVERA CA
2007-02-23 563-499-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DAVENPORT IA
2007-02-23 563-499-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAVENPORT IA
2007-02-23 702-428-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAS VEGAS NV
2007-02-23 818-491-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFN GRHL CA
2007-02-23 818-493-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2007-02-23 916-450-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SCRM MAIN CA
2007-02-23 925-303-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2007-02-23 951-547-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CORONA CA
2007-02-22 208-320-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TWIN FALLS ID
2007-02-22 208-392-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BOISE ID
2007-02-22 219-256-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 E CHICAGO IN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.