NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

66 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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. 66
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
2006-10-17 323-652-8XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2006-10-17 323-652-9XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2006-10-17 573-452-4XXX T-MOBILE USA, INC. 6529 FTLENARDWD MO
2006-10-17 626-549-8XXX T-MOBILE USA, INC. 6529 COVINA CA
2006-10-17 714-722-2XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-10-17 714-722-3XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-10-17 714-722-5XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-10-17 714-722-8XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-10-17 714-722-9XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-10-17 818-578-9XXX T-MOBILE USA, INC. 6529 RESEDA CA
2006-10-16 206-420-9XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2006-10-16 206-434-2XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2006-10-16 206-876-0XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2006-10-16 310-343-2XXX T-MOBILE USA, INC. 6529 EL SEGUNDO CA
2006-10-16 405-532-0XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 405-532-1XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 405-532-2XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 405-532-9XXX T-MOBILE USA, INC. 6529 OKLA CITY OK
2006-10-16 424-263-8XXX T-MOBILE USA, INC. 6529 LOMITA CA
2006-10-16 424-558-9XXX T-MOBILE USA, INC. 6529 TORRANCE CA
2006-10-16 424-644-7XXX T-MOBILE USA, INC. 6529 MALIBU CA
2006-10-16 424-731-9XXX T-MOBILE USA, INC. 6529 TORRANCE CA
2006-10-16 424-744-9XXX T-MOBILE USA, INC. 6529 SNMN SNMN CA
2006-10-16 479-715-2XXX T-MOBILE USA, INC. 6529 BENTONVL AR
2006-10-16 559-363-1XXX T-MOBILE USA, INC. 6529 MADERA CA
2006-10-16 562-242-4XXX T-MOBILE USA, INC. 6529 LA HABRA CA
2006-10-16 562-328-7XXX T-MOBILE USA, INC. 6529 WHITTIER CA
2006-10-16 626-254-3XXX T-MOBILE USA, INC. 6529 ARCADIA CA
2006-10-16 714-386-0XXX T-MOBILE USA, INC. 6529 YORBALINDA CA
2006-10-16 714-718-0XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-10-16 760-699-1XXX T-MOBILE USA, INC. 6529 PALM SPG CA
2006-10-16 818-573-7XXX T-MOBILE USA, INC. 6529 SNFN PACM CA
2006-10-16 909-527-5XXX T-MOBILE USA, INC. 6529 UPLAND CA
2006-10-13 707-362-9XXX T-MOBILE USA, INC. 6529 EUREKA CA
2006-10-13 715-223-9XXX T-MOBILE USA, INC. 6529 COLBY WI
2006-10-13 773-679-3XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-10-13 773-679-4XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-10-13 773-679-5XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-10-13 773-679-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-10-13 801-413-9XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2006-10-13 937-717-4XXX T-MOBILE USA, INC. 6529 SPRINGFLD OH
2006-10-12 319-471-8XXX T-MOBILE USA, INC. 6529 IOWA CITY IA
2006-10-12 319-610-9XXX T-MOBILE USA, INC. 6529 WATERLOO IA
2006-10-12 330-780-0XXX T-MOBILE USA, INC. 6529 AKRON OH
2006-10-12 541-226-5XXX T-MOBILE USA, INC. 6529 GRANTSPASS OR
2006-10-12 563-499-5XXX T-MOBILE USA, INC. 6529 DAVENPORT IA
2006-10-12 815-630-7XXX T-MOBILE USA, INC. 6529 JOLIET IL
2006-10-10 575-219-7XXX T-MOBILE USA, INC. 6529 CLOVIS NM
2006-10-10 715-560-9XXX T-MOBILE USA, INC. 6529 MEDFORD WI
2006-10-10 831-585-7XXX T-MOBILE USA, INC. 6529 SALINAS CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.