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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2005-12-28 602-323-6XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-12-28 602-635-0XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-12-28 602-635-8XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-12-28 602-716-1XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-12-28 623-298-9XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-12-28 623-692-5XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2005-12-28 636-373-3XXX T-MOBILE USA, INC. 6529 ST CHARLES MO
2005-12-27 209-356-5XXX T-MOBILE USA, INC. 6529 ATWATER CA
2005-12-27 213-284-0XXX T-MOBILE USA, INC. 6529 LSAN DA 07 CA
2005-12-27 224-610-9XXX T-MOBILE USA, INC. 6529 WAUKEGAN IL
2005-12-27 253-249-1XXX T-MOBILE USA, INC. 6529 AUBURN WA
2005-12-27 262-613-8XXX T-MOBILE USA, INC. 6529 WAUKESHA WI
2005-12-27 262-721-8XXX T-MOBILE USA, INC. 6529 RACINE WI
2005-12-27 262-751-2XXX T-MOBILE USA, INC. 6529 WAUKESHA WI
2005-12-27 310-353-6XXX T-MOBILE USA, INC. 6529 CMTN GRDN CA
2005-12-27 310-715-9XXX T-MOBILE USA, INC. 6529 CMTN GRDN CA
2005-12-27 310-967-9XXX T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2005-12-27 323-541-2XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2005-12-27 425-533-6XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2005-12-27 510-379-8XXX T-MOBILE USA, INC. 6529 OKLD MN-PD CA
2005-12-27 510-495-7XXX T-MOBILE USA, INC. 6529 OKLD BKLY CA
2005-12-27 562-219-6XXX T-MOBILE USA, INC. 6529 NORWALK CA
2005-12-27 608-443-7XXX T-MOBILE USA, INC. 6529 MADISON WI
2005-12-27 619-274-4XXX T-MOBILE USA, INC. 6529 NATIONALCY CA
2005-12-27 626-239-5XXX T-MOBILE USA, INC. 6529 MONROVIA CA
2005-12-27 626-382-8XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2005-12-27 760-216-1XXX T-MOBILE USA, INC. 6529 VISTA CA
2005-12-27 760-705-5XXX T-MOBILE USA, INC. 6529 ESCONDIDO CA
2005-12-27 818-239-6XXX T-MOBILE USA, INC. 6529 BRBN BRBN CA
2005-12-27 818-306-0XXX T-MOBILE USA, INC. 6529 LACRSCENTA CA
2005-12-27 847-596-1XXX T-MOBILE USA, INC. 6529 WAUKEGAN IL
2005-12-27 909-922-4XXX T-MOBILE USA, INC. 6529 ETIWANDA CA
2005-12-27 916-375-9XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2005-12-27 937-423-7XXX T-MOBILE USA, INC. 6529 GREENVILLE OH
2005-12-27 949-373-6XXX T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2005-12-27 951-565-3XXX T-MOBILE USA, INC. 6529 WOODCREST CA
2005-12-27 951-902-0XXX T-MOBILE USA, INC. 6529 MORENO CA
2005-12-27 970-301-5XXX T-MOBILE USA, INC. 6529 GREELEY CO
2005-12-22 773-565-7XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2005-12-22 773-565-8XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2005-12-22 773-641-8XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2005-12-21 206-731-9XXX T-MOBILE USA, INC. 6529 SEATTLE WA
2005-12-21 253-534-6XXX T-MOBILE USA, INC. 6529 TACOMA WA
2005-12-21 310-773-8XXX T-MOBILE USA, INC. 6529 SNMN MRVS CA
2005-12-21 310-862-9XXX T-MOBILE USA, INC. 6529 SNMN MRVS CA
2005-12-21 323-540-3XXX T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2005-12-21 323-540-9XXX T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2005-12-21 425-458-8XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2005-12-21 510-691-4XXX T-MOBILE USA, INC. 6529 HRCUL-RODE CA
2005-12-21 661-219-3XXX T-MOBILE USA, INC. 6529 SNCA NHCS 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.