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
2004-11-24 626-251-5XXX T-MOBILE USA, INC. 6529 COVINA CA
2004-11-24 626-251-6XXX T-MOBILE USA, INC. 6529 COVINA CA
2004-11-24 760-684-2XXX T-MOBILE USA, INC. 6529 VICTORVL CA
2004-11-24 760-687-5XXX T-MOBILE USA, INC. 6529 OCSD OCSD CA
2004-11-24 760-771-7XXX T-MOBILE USA, INC. 6529 INDIO CA
2004-11-24 818-568-9XXX T-MOBILE USA, INC. 6529 BRBN BRBN CA
2004-11-24 858-220-8XXX T-MOBILE USA, INC. 6529 LA JOLLA CA
2004-11-24 909-254-1XXX T-MOBILE USA, INC. 6529 COLTON CA
2004-11-24 949-331-6XXX T-MOBILE USA, INC. 6529 IRVINE CA
2004-11-23 217-506-0XXX T-MOBILE USA, INC. 6529 QUINCY IL
2004-11-23 224-210-9XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-11-23 512-506-0XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-11-23 512-586-7XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-11-23 512-586-8XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-11-23 512-586-9XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-11-23 806-717-9XXX T-MOBILE USA, INC. 6529 DUMAS TX
2004-11-23 951-526-0XXX T-MOBILE USA, INC. 6529 TEMECULA CA
2004-11-22 707-616-0XXX T-MOBILE USA, INC. 6529 EUREKA CA
2004-11-19 310-654-0XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-11-19 310-654-1XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-11-19 870-495-8XXX T-MOBILE USA, INC. 6529 NEWPORT AR
2004-11-19 870-565-7XXX T-MOBILE USA, INC. 6529 PARAGOULD AR
2004-11-18 314-333-2XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-11-18 316-377-2XXX T-MOBILE USA, INC. 6529 EL DORADO KS
2004-11-18 316-842-6XXX T-MOBILE USA, INC. 6529 NEWTON KS
2004-11-18 316-842-8XXX T-MOBILE USA, INC. 6529 NEWTON KS
2004-11-18 360-312-6XXX T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2004-11-18 360-333-6XXX T-MOBILE USA, INC. 6529 MT VERNON WA
2004-11-18 425-212-0XXX T-MOBILE USA, INC. 6529 EVERETT WA
2004-11-18 440-228-2XXX T-MOBILE USA, INC. 6529 ASHTABULA OH
2004-11-18 509-228-2XXX T-MOBILE USA, INC. 6529 SPOKANE WA
2004-11-18 509-374-6XXX T-MOBILE USA, INC. 6529 KENNEWICK WA
2004-11-18 509-594-3XXX T-MOBILE USA, INC. 6529 YAKIMA WA
2004-11-18 509-643-5XXX T-MOBILE USA, INC. 6529 SUNNYSIDE WA
2004-11-18 636-352-7XXX T-MOBILE USA, INC. 6529 ST CHARLES MO
2004-11-18 773-503-9XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-11-17 206-330-3XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-331-5XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-359-1XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-359-2XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-359-5XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-366-5XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-407-5XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-407-6XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-407-7XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-407-8XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 206-407-9XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-11-17 209-242-3XXX T-MOBILE USA, INC. 6529 STOCKTON CA
2004-11-17 253-426-7XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-11-17 360-350-7XXX T-MOBILE USA, INC. 6529 OLYMPIA WA

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.