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
2004-08-05 626-216-3XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2004-08-05 626-216-4XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2004-08-05 626-380-5XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2004-08-05 626-380-6XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2004-08-05 661-444-2XXX T-MOBILE USA, INC. 6529 BKFD MAIN CA
2004-08-05 818-251-6XXX T-MOBILE USA, INC. 6529 CANOGAPARK CA
2004-08-05 858-366-5XXX T-MOBILE USA, INC. 6529 LA JOLLA CA
2004-08-04 206-245-0XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-08-04 213-210-9XXX T-MOBILE USA, INC. 6529 LSAN DA 10 CA
2004-08-04 310-658-9XXX T-MOBILE USA, INC. 6529 EL SEGUNDO CA
2004-08-04 323-302-1XXX T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2004-08-04 360-433-1XXX T-MOBILE USA, INC. 6529 VANCOUVER WA
2004-08-04 425-208-2XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2004-08-04 562-396-3XXX T-MOBILE USA, INC. 6529 DOWNEY CA
2004-08-04 720-207-3XXX T-MOBILE USA, INC. 6529 DENVER CO
2004-08-04 773-600-3XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-08-04 773-600-4XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-08-04 773-600-5XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-08-04 773-600-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-08-04 773-600-7XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-08-03 253-203-5XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-08-03 469-826-0XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 469-826-1XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 469-826-2XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 469-826-3XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 469-826-4XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 469-826-5XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 469-826-6XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-08-03 714-232-5XXX T-MOBILE USA, INC. 6529 BUENA PARK CA
2004-08-03 971-222-7XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-08-03 971-222-8XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-08-03 971-222-9XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-07-30 214-714-0XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-07-30 219-484-1XXX T-MOBILE USA, INC. 6529 GARY IN
2004-07-30 310-626-7XXX T-MOBILE USA, INC. 6529 LOMITA CA
2004-07-30 630-415-5XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2004-07-30 630-532-0XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2004-07-30 630-701-8XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-07-30 714-261-3XXX T-MOBILE USA, INC. 6529 YORBALINDA CA
2004-07-30 847-483-4XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-07-29 425-318-9XXX T-MOBILE USA, INC. 6529 BOTHELL WA
2004-07-28 210-204-0XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-07-28 210-204-2XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-07-28 210-204-3XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-07-28 210-204-5XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-07-27 214-256-2XXX T-MOBILE USA, INC. 6529 DALLAS TX
2004-07-27 325-200-8XXX T-MOBILE USA, INC. 6529 BROWNWOOD TX
2004-07-27 325-200-9XXX T-MOBILE USA, INC. 6529 BROWNWOOD TX
2004-07-27 325-718-9XXX T-MOBILE USA, INC. 6529 BALLINGER TX
2004-07-27 505-409-8XXX T-MOBILE USA, INC. 6529 GALLUP NM

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.