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
2004-08-19 650-451-2XXX T-MOBILE USA, INC. 6529 PACIFICA CA
2004-08-19 714-613-3XXX T-MOBILE USA, INC. 6529 SILVERADO CA
2004-08-19 760-684-1XXX T-MOBILE USA, INC. 6529 VICTORVL CA
2004-08-19 815-295-3XXX T-MOBILE USA, INC. 6529 KANKAKEE IL
2004-08-19 818-279-4XXX T-MOBILE USA, INC. 6529 LACRSCENTA CA
2004-08-19 909-646-0XXX T-MOBILE USA, INC. 6529 ETIWANDA CA
2004-08-19 916-420-4XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-08-19 916-420-5XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-08-18 312-479-0XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-08-18 312-479-6XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-08-18 312-479-7XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-08-18 312-479-8XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-08-18 503-261-3XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2004-08-18 702-273-9XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-08-18 720-206-4XXX T-MOBILE USA, INC. 6529 DENVER CO
2004-08-18 720-206-5XXX T-MOBILE USA, INC. 6529 DENVER CO
2004-08-18 847-890-2XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-08-18 937-381-7XXX T-MOBILE USA, INC. 6529 PIQUA OH
2004-08-17 206-245-3XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2004-08-17 253-203-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-08-17 330-259-2XXX T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2004-08-17 503-984-5XXX T-MOBILE USA, INC. 6529 WOODBURN OR
2004-08-17 773-355-6XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-08-17 773-355-7XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-08-16 419-520-5XXX T-MOBILE USA, INC. 6529 MANSFIELD OH
2004-08-16 435-621-7XXX T-MOBILE USA, INC. 6529 VERNAL UT
2004-08-16 513-283-3XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2004-08-16 513-283-4XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2004-08-16 847-354-9XXX T-MOBILE USA, INC. 6529 ELK GROVE IL
2004-08-16 951-490-5XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-08-16 951-550-7XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-08-13 210-204-4XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-08-13 210-204-6XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-08-13 210-204-7XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-08-13 210-204-8XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-08-13 210-204-9XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-08-13 253-250-3XXX T-MOBILE USA, INC. 6529 TACOMAWVLY WA
2004-08-13 253-250-5XXX T-MOBILE USA, INC. 6529 TACOMAWVLY WA
2004-08-13 310-349-7XXX T-MOBILE USA, INC. 6529 HAWTHORNE CA
2004-08-13 310-531-6XXX T-MOBILE USA, INC. 6529 HAWTHORNE CA
2004-08-13 408-914-0XXX T-MOBILE USA, INC. 6529 SNJS NORTH CA
2004-08-13 515-953-8XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2004-08-13 805-284-5XXX T-MOBILE USA, INC. 6529 SANBARBARA CA
2004-08-12 661-675-9XXX T-MOBILE USA, INC. 6529 PLDL PLDL CA
2004-08-12 661-860-5XXX T-MOBILE USA, INC. 6529 PLDL PLDL CA
2004-08-11 310-695-8XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-08-11 406-451-9XXX T-MOBILE USA, INC. 6529 BOZEMAN MT
2004-08-11 541-240-4XXX T-MOBILE USA, INC. 6529 PENDLETON OR
2004-08-11 847-849-6XXX T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-08-11 847-849-7XXX T-MOBILE USA, INC. 6529 NORTHBROOK IL

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.