NumberResearch Membership · Data 2026-04

Recent thousands-block assignments

76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 2026-04

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
2004-02-20 254-466-0XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2004-02-20 323-403-3XXX T-MOBILE USA, INC. 6529 LSAN DA 12 CA
2004-02-20 408-603-5XXX T-MOBILE USA, INC. 6529 CAMPBELL CA
2004-02-20 559-455-7XXX T-MOBILE USA, INC. 6529 FRESNO CA
2004-02-20 661-607-3XXX T-MOBILE USA, INC. 6529 SNCA NHCS CA
2004-02-20 805-760-7XXX T-MOBILE USA, INC. 6529 OXNARD CA
2004-02-20 909-528-2XXX T-MOBILE USA, INC. 6529 MENTONE CA
2004-02-19 310-626-2XXX T-MOBILE USA, INC. 6529 LOMITA CA
2004-02-19 310-735-7XXX T-MOBILE USA, INC. 6529 CMTN CMTN CA
2004-02-19 325-212-0XXX T-MOBILE USA, INC. 6529 SAN ANGELO TX
2004-02-19 432-978-8XXX T-MOBILE USA, INC. 6529 TERMINAL TX
2004-02-19 469-396-4XXX T-MOBILE USA, INC. 6529 MCKINNEY TX
2004-02-19 469-396-5XXX T-MOBILE USA, INC. 6529 MCKINNEY TX
2004-02-19 512-228-6XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-228-7XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-228-8XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-299-0XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-300-1XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-300-3XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-300-4XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 512-300-5XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-02-19 520-234-2XXX T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2004-02-19 541-610-9XXX T-MOBILE USA, INC. 6529 BEND OR
2004-02-19 719-369-4XXX T-MOBILE USA, INC. 6529 PUEBLO CO
2004-02-18 314-596-7XXX T-MOBILE USA, INC. 6529 KIRKWOOD MO
2004-02-18 702-358-3XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-02-18 916-529-8XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-02-18 918-208-7XXX T-MOBILE USA, INC. 6529 SALLISAW OK
2004-02-18 918-208-8XXX T-MOBILE USA, INC. 6529 SALLISAW OK
2004-02-18 972-746-6XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-02-18 972-746-7XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-02-17 330-412-5XXX T-MOBILE USA, INC. 6529 CANTON OH
2004-02-17 618-579-8XXX T-MOBILE USA, INC. 6529 MARION IL
2004-02-17 620-770-9XXX T-MOBILE USA, INC. 6529 PRATT KS
2004-02-17 630-379-1XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2004-02-17 630-392-3XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-17 630-392-4XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-17 630-440-3XXX T-MOBILE USA, INC. 6529 W CHICAGO IL
2004-02-17 928-208-3XXX T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2004-02-17 928-208-5XXX T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2004-02-16 951-956-4XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-02-13 262-672-9XXX T-MOBILE USA, INC. 6529 RACINE WI
2004-02-13 530-953-7XXX T-MOBILE USA, INC. 6529 REDDING CA
2004-02-13 630-392-0XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-392-1XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-2XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-3XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-4XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-5XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-7XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.