NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

66 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. 66
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
2006-08-09 253-330-3XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-08-09 316-244-0XXX T-MOBILE USA, INC. 6529 EL DORADO KS
2006-08-09 316-244-2XXX T-MOBILE USA, INC. 6529 EL DORADO KS
2006-08-09 630-429-1XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-08-09 928-550-2XXX T-MOBILE USA, INC. 6529 SOMERTON AZ
2006-08-09 928-550-3XXX T-MOBILE USA, INC. 6529 SOMERTON AZ
2006-08-08 217-220-4XXX T-MOBILE USA, INC. 6529 SPRINGFLD IL
2006-08-08 316-209-0XXX T-MOBILE USA, INC. 6529 WICHITA KS
2006-08-08 316-209-2XXX T-MOBILE USA, INC. 6529 WICHITA KS
2006-08-08 316-210-0XXX T-MOBILE USA, INC. 6529 WICHITA KS
2006-08-08 316-214-0XXX T-MOBILE USA, INC. 6529 WICHITA KS
2006-08-08 630-414-9XXX T-MOBILE USA, INC. 6529 W CHICAGO IL
2006-08-08 630-974-9XXX T-MOBILE USA, INC. 6529 HINSDALE IL
2006-08-08 641-377-6XXX T-MOBILE USA, INC. 6529 COLO IA
2006-08-08 708-566-0XXX T-MOBILE USA, INC. 6529 HARVEY IL
2006-08-08 818-770-0XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2006-08-08 847-873-3XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-08-07 330-860-3XXX T-MOBILE USA, INC. 6529 AKRON OH
2006-08-07 440-532-1XXX T-MOBILE USA, INC. 6529 BEREA OH
2006-08-06 310-878-7XXX T-MOBILE USA, INC. 6529 CMTN GRDN CA
2006-08-04 219-707-2XXX T-MOBILE USA, INC. 6529 VALPARAISO IN
2006-08-04 253-353-5XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-08-04 253-353-6XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-08-04 253-353-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-08-04 253-507-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-08-04 323-742-2XXX T-MOBILE USA, INC. 6529 MONTEBELLO CA
2006-08-04 323-742-3XXX T-MOBILE USA, INC. 6529 MONTEBELLO CA
2006-08-04 330-389-2XXX T-MOBILE USA, INC. 6529 RAVENNA OH
2006-08-04 330-639-6XXX T-MOBILE USA, INC. 6529 CANTON OH
2006-08-04 425-971-2XXX T-MOBILE USA, INC. 6529 EVERETT WA
2006-08-04 440-390-1XXX T-MOBILE USA, INC. 6529 NOROYALTON OH
2006-08-04 440-714-9XXX T-MOBILE USA, INC. 6529 LORAIN OH
2006-08-04 440-749-6XXX T-MOBILE USA, INC. 6529 WILLOUGHBY OH
2006-08-04 801-649-7XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2006-08-04 801-649-8XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2006-08-04 801-649-9XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2006-08-01 530-312-9XXX T-MOBILE USA, INC. 6529 WOODLAND CA
2006-08-01 818-792-3XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2006-08-01 928-458-6XXX T-MOBILE USA, INC. 6529 PRESCOTT AZ
2006-07-31 515-339-1XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2006-07-31 515-339-9XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2006-07-28 314-556-0XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-07-28 314-556-1XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-07-28 314-556-2XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-07-28 314-556-9XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-07-28 503-576-1XXX T-MOBILE USA, INC. 6529 SALEM OR
2006-07-28 773-679-0XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-07-28 773-679-1XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-07-28 773-679-2XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2006-07-28 773-679-9XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL

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.