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
2004-04-15 916-529-0XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-04-15 951-490-7XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-04-15 951-490-8XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-04-14 253-861-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-14 253-861-2XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-14 310-507-4XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-04-14 330-412-6XXX T-MOBILE USA, INC. 6529 CANTON OH
2004-04-14 360-286-7XXX T-MOBILE USA, INC. 6529 SILVERDALE WA
2004-04-14 714-418-8XXX T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-04-13 310-806-5XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-04-13 323-384-2XXX T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2004-04-13 323-384-3XXX T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2004-04-13 323-384-4XXX T-MOBILE USA, INC. 6529 LSAN DA 03 CA
2004-04-13 408-228-7XXX T-MOBILE USA, INC. 6529 SNJS NORTH CA
2004-04-13 435-630-6XXX T-MOBILE USA, INC. 6529 PRICE UT
2004-04-13 626-227-3XXX T-MOBILE USA, INC. 6529 ALHAMBRA CA
2004-04-13 650-267-1XXX T-MOBILE USA, INC. 6529 SSNFRNCSCO CA
2004-04-13 760-449-7XXX T-MOBILE USA, INC. 6529 PALM SPG CA
2004-04-13 805-354-2XXX T-MOBILE USA, INC. 6529 SANTAMARIA CA
2004-04-12 208-404-2XXX T-MOBILE USA, INC. 6529 TWIN FALLS ID
2004-04-12 435-237-3XXX T-MOBILE USA, INC. 6529 BRIGHAM CY UT
2004-04-08 602-388-5XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-04-08 602-388-6XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-04-08 602-388-7XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-04-08 630-299-6XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-04-07 262-672-8XXX T-MOBILE USA, INC. 6529 RACINE WI
2004-04-07 314-269-6XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-04-07 314-269-7XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-04-07 435-232-7XXX T-MOBILE USA, INC. 6529 LOGAN UT
2004-04-06 253-217-5XXX T-MOBILE USA, INC. 6529 AUBURN WA
2004-04-06 253-217-7XXX T-MOBILE USA, INC. 6529 AUBURN WA
2004-04-06 253-273-7XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-06 253-273-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-06 509-594-5XXX T-MOBILE USA, INC. 6529 YAKIMA WA
2004-04-06 509-594-6XXX T-MOBILE USA, INC. 6529 YAKIMA WA
2004-04-06 509-594-7XXX T-MOBILE USA, INC. 6529 YAKIMA WA
2004-04-06 515-313-1XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2004-04-06 808-960-9XXX T-MOBILE USA, INC. 6529 HILO HI
2004-04-05 208-629-6XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-04-05 208-629-9XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-04-05 432-847-9XXX T-MOBILE USA, INC. 6529 SEMINOLE TX
2004-04-01 310-507-5XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-04-01 530-415-7XXX T-MOBILE USA, INC. 6529 MARYSVILLE CA
2004-04-01 714-552-8XXX T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-04-01 808-393-4XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-04-01 808-393-5XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-04-01 808-393-6XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-04-01 859-486-9XXX T-MOBILE USA, INC. 6529 COVINGTON KY
2004-04-01 916-529-1XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-04-01 916-529-2XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA

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.