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
2004-09-23 619-335-6XXX T-MOBILE USA, INC. 6529 LA MESA CA
2004-09-23 619-414-4XXX T-MOBILE USA, INC. 6529 LA MESA CA
2004-09-23 636-293-2XXX T-MOBILE USA, INC. 6529 OFALLON MO
2004-09-23 714-492-0XXX T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-09-23 714-492-9XXX T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-09-23 715-697-8XXX T-MOBILE USA, INC. 6529 WISCOSNRPD WI
2004-09-23 801-390-2XXX T-MOBILE USA, INC. 6529 KAYSVILLE UT
2004-09-23 818-675-4XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-09-23 909-380-5XXX T-MOBILE USA, INC. 6529 S BERNDINO CA
2004-09-23 909-438-1XXX T-MOBILE USA, INC. 6529 CHINO CA
2004-09-23 909-438-3XXX T-MOBILE USA, INC. 6529 CHINO CA
2004-09-23 916-420-6XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-09-23 920-471-5XXX T-MOBILE USA, INC. 6529 GREEN BAY WI
2004-09-23 951-252-3XXX T-MOBILE USA, INC. 6529 TEMECULA CA
2004-09-23 951-442-6XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-09-23 951-642-9XXX T-MOBILE USA, INC. 6529 CORONA CA
2004-09-23 970-208-4XXX T-MOBILE USA, INC. 6529 GRAND JCT CO
2004-09-22 815-301-7XXX T-MOBILE USA, INC. 6529 CRYSTAL LK IL
2004-09-22 847-613-8XXX T-MOBILE USA, INC. 6529 HALF DAY IL
2004-09-22 847-613-9XXX T-MOBILE USA, INC. 6529 HALF DAY IL
2004-09-22 972-746-0XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-09-22 972-746-1XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-09-22 972-786-6XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-09-20 310-743-2XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-09-20 330-271-9XXX T-MOBILE USA, INC. 6529 LISBON OH
2004-09-20 773-341-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-09-20 915-443-6XXX T-MOBILE USA, INC. 6529 EL PASO TX
2004-09-17 208-695-1XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-09-17 208-922-8XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-09-17 435-862-0XXX T-MOBILE USA, INC. 6529 ST GEORGE UT
2004-09-17 702-403-9XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-09-17 719-200-0XXX T-MOBILE USA, INC. 6529 COLORDOSPG CO
2004-09-17 719-200-1XXX T-MOBILE USA, INC. 6529 COLORDOSPG CO
2004-09-16 310-467-9XXX T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2004-09-16 310-926-6XXX T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2004-09-16 636-373-0XXX T-MOBILE USA, INC. 6529 ST CHARLES MO
2004-09-16 714-209-8XXX T-MOBILE USA, INC. 6529 CYPRESS CA
2004-09-16 773-322-8XXX T-MOBILE USA, INC. 6529 CHICGOZN07 IL
2004-09-16 773-733-8XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-09-16 773-733-9XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-09-16 773-829-1XXX T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2004-09-16 773-829-3XXX T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2004-09-16 773-829-5XXX T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2004-09-16 847-756-0XXX T-MOBILE USA, INC. 6529 BARRINGTON IL
2004-09-16 847-890-3XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-09-16 858-869-7XXX T-MOBILE USA, INC. 6529 LA JOLLA CA
2004-09-16 972-872-0XXX T-MOBILE USA, INC. 6529 ENNIS TX
2004-09-16 972-872-1XXX T-MOBILE USA, INC. 6529 ENNIS TX
2004-09-16 972-872-5XXX T-MOBILE USA, INC. 6529 ENNIS TX
2004-09-15 469-226-0XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX

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.