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
2004-07-16 626-271-4XXX T-MOBILE USA, INC. 6529 LA PUENTE CA
2004-07-16 636-299-6XXX T-MOBILE USA, INC. 6529 CHESTERFLD MO
2004-07-16 818-602-9XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-07-16 951-834-7XXX T-MOBILE USA, INC. 6529 MURRIETA CA
2004-07-16 971-222-4XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-07-16 971-222-5XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-07-16 971-222-6XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-07-15 214-475-0XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-07-15 214-558-4XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-07-15 214-677-5XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-07-15 214-686-9XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-07-15 262-484-6XXX T-MOBILE USA, INC. 6529 KENOSHA WI
2004-07-15 262-676-7XXX T-MOBILE USA, INC. 6529 RACINE WI
2004-07-15 314-600-4XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-07-15 314-600-5XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-07-15 314-600-6XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-07-15 314-600-7XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-07-15 314-600-8XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-07-15 520-203-5XXX T-MOBILE USA, INC. 6529 TUCSON AZ
2004-07-15 602-218-0XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-15 602-218-1XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-07-15 928-261-1XXX T-MOBILE USA, INC. 6529 YUMA AZ
2004-07-15 928-542-0XXX T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2004-07-15 972-859-9XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-07-14 903-275-5XXX T-MOBILE USA, INC. 6529 ATHENS TX
2004-07-13 219-379-2XXX T-MOBILE USA, INC. 6529 LA PORTE IN
2004-07-13 219-869-6XXX T-MOBILE USA, INC. 6529 RENSSELAER IN
2004-07-13 224-430-5XXX T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-07-13 310-254-6XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-07-13 310-254-8XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-07-13 310-447-8XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-07-13 323-360-4XXX T-MOBILE USA, INC. 6529 LSAN DA 05 CA
2004-07-13 618-698-5XXX T-MOBILE USA, INC. 6529 BELLEVILLE IL
2004-07-13 626-216-2XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2004-07-13 630-696-0XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 630-696-5XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 630-696-7XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 630-696-8XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 801-499-6XXX T-MOBILE USA, INC. 6529 KAYSVILLE UT
2004-07-13 818-442-8XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-07-13 818-983-9XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-07-12 808-620-0XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-12 808-620-1XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-12 808-620-2XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-12 808-620-3XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-12 808-620-4XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-09 310-847-0XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-07-09 312-730-3XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-07-09 312-730-4XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-07-09 312-730-5XXX T-MOBILE USA, INC. 6529 CHICGOZN01 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.