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
2005-01-17 206-330-7XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 206-330-8XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 206-330-9XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 206-331-6XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 206-331-7XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 206-331-9XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 206-375-8XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-01-17 209-740-6XXX T-MOBILE USA, INC. 6529 TRACY CA
2005-01-17 253-205-9XXX T-MOBILE USA, INC. 6529 AUBURN WA
2005-01-17 310-895-1XXX T-MOBILE USA, INC. 6529 CULVERCITY CA
2005-01-17 626-392-0XXX T-MOBILE USA, INC. 6529 COVINA CA
2005-01-17 661-466-9XXX T-MOBILE USA, INC. 6529 LANCASTER CA
2005-01-17 814-853-7XXX T-MOBILE USA, INC. 6529 MEADVILLE PA
2005-01-17 847-613-0XXX T-MOBILE USA, INC. 6529 HALF DAY IL
2005-01-17 916-248-0XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2005-01-17 928-257-7XXX T-MOBILE USA, INC. 6529 YUMA AZ
2005-01-14 217-721-8XXX T-MOBILE USA, INC. 6529 CHAMPAURBN IL
2005-01-14 224-210-0XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2005-01-14 314-601-1XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2005-01-14 314-601-5XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2005-01-14 702-377-0XXX T-MOBILE USA, INC. 6529 OVERTON NV
2005-01-14 702-424-0XXX T-MOBILE USA, INC. 6529 UPPERMUDDY NV
2005-01-14 708-228-2XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2005-01-14 708-589-5XXX T-MOBILE USA, INC. 6529 HARVEY IL
2005-01-14 708-623-5XXX T-MOBILE USA, INC. 6529 TINLEYPARK IL
2005-01-14 708-623-9XXX T-MOBILE USA, INC. 6529 TINLEYPARK IL
2005-01-14 708-843-1XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2005-01-14 708-843-2XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2005-01-14 847-620-9XXX T-MOBILE USA, INC. 6529 BARRINGTON IL
2005-01-14 847-693-0XXX T-MOBILE USA, INC. 6529 WAUKEGAN IL
2005-01-14 847-852-0XXX T-MOBILE USA, INC. 6529 BARRINGTON IL
2005-01-13 210-396-3XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2005-01-13 224-210-3XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2005-01-13 310-654-8XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2005-01-13 618-698-8XXX T-MOBILE USA, INC. 6529 BELLEVILLE IL
2005-01-13 623-298-8XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-01-13 630-229-4XXX T-MOBILE USA, INC. 6529 AURORA IL
2005-01-13 630-303-7XXX T-MOBILE USA, INC. 6529 NAPERVILLE IL
2005-01-13 630-433-6XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2005-01-13 630-456-3XXX T-MOBILE USA, INC. 6529 WHEATON IL
2005-01-13 630-550-3XXX T-MOBILE USA, INC. 6529 BARTLETT IL
2005-01-13 661-874-9XXX T-MOBILE USA, INC. 6529 LANCASTER CA
2005-01-13 702-416-1XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2005-01-13 702-416-2XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2005-01-13 760-989-6XXX T-MOBILE USA, INC. 6529 INDIO CA
2005-01-13 773-559-0XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2005-01-13 773-559-1XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2005-01-13 773-559-2XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2005-01-13 773-559-3XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2005-01-13 773-559-4XXX T-MOBILE USA, INC. 6529 CHICGOZN03 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.