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
2004-10-15 714-331-7XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-331-9XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-391-1XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 719-432-6XXX T-MOBILE USA, INC. 6529 COLORDOSPG CO
2004-10-15 773-366-4XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-10-15 773-366-5XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-10-15 773-366-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-10-15 773-494-6XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-10-15 773-494-7XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-10-15 773-512-7XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-10-15 773-512-8XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-10-15 773-512-9XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-10-15 859-486-5XXX T-MOBILE USA, INC. 6529 COVINGTON KY
2004-10-15 909-753-3XXX T-MOBILE USA, INC. 6529 CLAREMONT CA
2004-10-15 928-230-5XXX T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2004-10-15 949-973-7XXX T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2004-10-15 951-834-8XXX T-MOBILE USA, INC. 6529 MURRIETA CA
2004-10-14 206-326-9XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-10-14 253-310-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-10-14 408-324-6XXX T-MOBILE USA, INC. 6529 SNJS NORTH CA
2004-10-14 408-544-0XXX T-MOBILE USA, INC. 6529 SNJS NORTH CA
2004-10-14 425-208-6XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2004-10-14 480-437-4XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 480-512-2XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 480-907-8XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 480-907-9XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 503-438-5XXX T-MOBILE USA, INC. 6529 ST HELENS OR
2004-10-14 512-262-8XXX T-MOBILE USA, INC. 6529 KYLE TX
2004-10-14 512-312-6XXX T-MOBILE USA, INC. 6529 BUDA TX
2004-10-14 512-690-3XXX T-MOBILE USA, INC. 6529 LEANDER TX
2004-10-14 708-362-9XXX T-MOBILE USA, INC. 6529 HARVEY IL
2004-10-14 720-206-7XXX T-MOBILE USA, INC. 6529 DENVER CO
2004-10-14 775-247-2XXX T-MOBILE USA, INC. 6529 RENO NV
2004-10-14 847-871-7XXX T-MOBILE USA, INC. 6529 ELK GROVE IL
2004-10-14 971-218-4XXX T-MOBILE USA, INC. 6529 SALEM OR
2004-10-13 210-254-0XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-10-13 210-254-2XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-10-13 210-254-3XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-10-13 210-255-7XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-10-13 510-962-2XXX T-MOBILE USA, INC. 6529 HAYWARD CA
2004-10-13 512-402-4XXX T-MOBILE USA, INC. 6529 AUSTIN TX
2004-10-13 559-261-5XXX T-MOBILE USA, INC. 6529 FRESNO CA
2004-10-13 714-244-8XXX T-MOBILE USA, INC. 6529 ORANGE CA
2004-10-13 818-284-5XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-10-13 858-366-8XXX T-MOBILE USA, INC. 6529 LA JOLLA CA
2004-10-13 909-810-9XXX T-MOBILE USA, INC. 6529 MENTONE CA
2004-10-12 440-204-8XXX T-MOBILE USA, INC. 6529 LORAIN OH
2004-10-12 702-785-8XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-10-12 760-222-5XXX T-MOBILE USA, INC. 6529 EL CENTRO CA
2004-10-12 808-232-3XXX T-MOBILE USA, INC. 6529 HONOLULU HI

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.