NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

76 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. 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
2023-08-10 714-971-7XXX T-MOBILE USA, INC. 6529 GARDEN GRV CA
2023-08-10 747-717-0XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2023-08-10 747-717-1XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2023-08-10 747-717-2XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2023-08-10 760-850-8XXX T-MOBILE USA, INC. 6529 BRAWLEY CA
2023-08-10 760-850-9XXX T-MOBILE USA, INC. 6529 BRAWLEY CA
2023-08-10 775-545-5XXX T-MOBILE USA, INC. 6529 SWEETWATER NV
2023-08-10 775-545-6XXX T-MOBILE USA, INC. 6529 SWEETWATER NV
2023-08-10 775-545-7XXX T-MOBILE USA, INC. 6529 SWEETWATER NV
2023-08-10 840-228-4XXX T-MOBILE USA, INC. 6529 COLTON CA
2023-08-10 858-331-4XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2023-08-10 858-331-5XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2023-08-10 858-331-6XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2023-08-10 858-331-7XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2023-08-10 925-878-4XXX T-MOBILE USA, INC. 6529 LAFAYETTE CA
2023-08-10 971-447-1XXX T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-08-10 971-447-2XXX T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-08-10 971-456-8XXX T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-08-10 971-456-9XXX T-MOBILE USA, INC. 6529 TILLAMOOK OR
2023-08-09 309-314-9XXX T-MOBILE USA, INC. 6529 MOLINE IL
2023-08-09 309-909-2XXX T-MOBILE USA, INC. 6529 MOLINE IL
2023-08-09 309-909-3XXX T-MOBILE USA, INC. 6529 MOLINE IL
2023-08-09 309-909-4XXX T-MOBILE USA, INC. 6529 MOLINE IL
2023-08-09 309-909-5XXX T-MOBILE USA, INC. 6529 MOLINE IL
2023-08-09 406-804-9XXX T-MOBILE USA, INC. 6529 GARDINER MT
2023-08-09 618-373-3XXX T-MOBILE USA, INC. 6529 GRANITE CY IL
2023-08-08 872-300-9XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 447-301-4XXX T-MOBILE USA, INC. 6529 PARIS IL
2023-08-05 779-364-2XXX T-MOBILE USA, INC. 6529 STREATOR IL
2023-08-05 779-364-3XXX T-MOBILE USA, INC. 6529 STREATOR IL
2023-08-05 779-364-4XXX T-MOBILE USA, INC. 6529 STREATOR IL
2023-08-05 872-309-0XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 872-309-1XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 872-309-5XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 872-309-6XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 872-309-7XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 872-309-8XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-05 872-309-9XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2023-08-04 330-200-8XXX T-MOBILE USA, INC. 6529 SHARON OH
2023-08-04 330-200-9XXX T-MOBILE USA, INC. 6529 SHARON OH
2023-08-04 440-470-8XXX T-MOBILE USA, INC. 6529 ASHTABULA OH
2023-08-04 440-470-9XXX T-MOBILE USA, INC. 6529 ASHTABULA OH
2023-08-04 567-330-8XXX T-MOBILE USA, INC. 6529 ASHLAND OH
2023-08-04 567-330-9XXX T-MOBILE USA, INC. 6529 ASHLAND OH
2023-08-04 937-946-9XXX T-MOBILE USA, INC. 6529 XENIA OH
2023-08-03 937-875-7XXX T-MOBILE USA, INC. 6529 TROY OH
2023-07-31 747-213-9XXX T-MOBILE USA, INC. 6529 CANOGAPARK CA
2023-07-28 209-776-5XXX T-MOBILE USA, INC. 6529 JACKSON CA
2023-07-28 213-656-4XXX T-MOBILE USA, INC. 6529 LSAN DA 01 CA
2023-07-28 213-656-5XXX T-MOBILE USA, INC. 6529 LSAN DA 01 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.