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
2005-01-05 937-630-2XXX T-MOBILE USA, INC. 6529 DAYTON OH
2005-01-05 971-218-5XXX T-MOBILE USA, INC. 6529 SALEM OR
2005-01-04 219-484-6XXX T-MOBILE USA, INC. 6529 GARY IN
2005-01-04 314-620-6XXX T-MOBILE USA, INC. 6529 KIRKWOOD MO
2005-01-04 323-202-9XXX T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2005-01-04 323-556-4XXX T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2005-01-04 330-412-7XXX T-MOBILE USA, INC. 6529 CANTON OH
2005-01-04 530-415-5XXX T-MOBILE USA, INC. 6529 MARYSVILLE CA
2005-01-04 608-443-9XXX T-MOBILE USA, INC. 6529 MADISON WI
2005-01-04 608-498-9XXX T-MOBILE USA, INC. 6529 LA CROSSE WI
2005-01-04 636-667-4XXX T-MOBILE USA, INC. 6529 WASHINGTON MO
2005-01-04 707-832-9XXX T-MOBILE USA, INC. 6529 EUREKA CA
2005-01-04 714-232-6XXX T-MOBILE USA, INC. 6529 BUENA PARK CA
2005-01-04 805-240-6XXX T-MOBILE USA, INC. 6529 OXNARD CA
2005-01-04 903-691-3XXX T-MOBILE USA, INC. 6529 TEXARKANA TX
2005-01-04 909-919-5XXX T-MOBILE USA, INC. 6529 UPLAND CA
2005-01-04 909-919-6XXX T-MOBILE USA, INC. 6529 UPLAND CA
2005-01-04 951-813-5XXX T-MOBILE USA, INC. 6529 MURRIETA CA
2005-01-04 972-838-8XXX T-MOBILE USA, INC. 6529 MCKINNEY TX
2005-01-03 214-234-6XXX T-MOBILE USA, INC. 6529 DALLAS TX
2005-01-03 224-210-7XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2005-01-03 310-986-0XXX T-MOBILE USA, INC. 6529 LOMITA CA
2005-01-03 310-986-1XXX T-MOBILE USA, INC. 6529 LOMITA CA
2005-01-03 330-209-8XXX T-MOBILE USA, INC. 6529 CANTON OH
2005-01-03 360-204-8XXX T-MOBILE USA, INC. 6529 SILVERDALE WA
2005-01-03 360-483-7XXX T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2005-01-03 360-485-6XXX T-MOBILE USA, INC. 6529 OLYMPIA WA
2005-01-03 360-761-8XXX T-MOBILE USA, INC. 6529 BUCKLEY WA
2005-01-03 425-205-5XXX T-MOBILE USA, INC. 6529 BOTHELL WA
2005-01-03 505-409-5XXX T-MOBILE USA, INC. 6529 GALLUP NM
2005-01-03 505-409-6XXX T-MOBILE USA, INC. 6529 GALLUP NM
2005-01-03 505-716-2XXX T-MOBILE USA, INC. 6529 FARMINGTON NM
2005-01-03 608-312-8XXX T-MOBILE USA, INC. 6529 BELOIT WI
2005-01-03 630-405-8XXX T-MOBILE USA, INC. 6529 AURORA IL
2005-01-03 630-405-9XXX T-MOBILE USA, INC. 6529 AURORA IL
2005-01-03 630-433-8XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2005-01-03 937-527-0XXX T-MOBILE USA, INC. 6529 WILMINGTON OH
2004-12-30 501-442-2XXX T-MOBILE USA, INC. 6529 LITTLEROCK AR
2004-12-30 501-442-8XXX T-MOBILE USA, INC. 6529 LITTLEROCK AR
2004-12-30 520-236-5XXX T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2004-12-30 928-230-4XXX T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2004-12-29 330-984-8XXX T-MOBILE USA, INC. 6529 WARREN OH
2004-12-29 618-223-2XXX T-MOBILE USA, INC. 6529 COLLINSVL IL
2004-12-29 714-723-2XXX T-MOBILE USA, INC. 6529 CYPRESS CA
2004-12-29 773-540-9XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-12-29 909-327-0XXX T-MOBILE USA, INC. 6529 S BERNDINO CA
2004-12-29 909-327-1XXX T-MOBILE USA, INC. 6529 S BERNDINO CA
2004-12-29 909-327-9XXX T-MOBILE USA, INC. 6529 S BERNDINO CA
2004-12-28 330-573-0XXX T-MOBILE USA, INC. 6529 AKRON OH
2004-12-28 330-573-2XXX T-MOBILE USA, INC. 6529 AKRON OH

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.