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
2004-12-10 720-210-6XXX T-MOBILE USA, INC. 6529 DENVER CO
2004-12-10 818-675-5XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-12-10 903-330-7XXX T-MOBILE USA, INC. 6529 TYLER TX
2004-12-09 219-210-1XXX T-MOBILE USA, INC. 6529 MICHIGANCY IN
2004-12-09 253-359-4XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-12-09 253-359-7XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-12-09 253-359-8XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-12-09 310-254-0XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-12-09 310-689-6XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-12-09 415-570-3XXX T-MOBILE USA, INC. 6529 SNFC JUNPR CA
2004-12-09 435-232-5XXX T-MOBILE USA, INC. 6529 LOGAN UT
2004-12-09 619-228-1XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-12-09 619-384-0XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-12-09 619-446-8XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-12-09 619-767-8XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-12-09 630-433-7XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2004-12-09 661-600-2XXX T-MOBILE USA, INC. 6529 SNCA NHCS CA
2004-12-09 714-902-8XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 714-933-0XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 714-933-5XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 714-933-8XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 801-310-7XXX T-MOBILE USA, INC. 6529 PROVO UT
2004-12-09 801-404-2XXX T-MOBILE USA, INC. 6529 PROVO UT
2004-12-09 818-279-5XXX T-MOBILE USA, INC. 6529 LACRSCENTA CA
2004-12-09 928-261-2XXX T-MOBILE USA, INC. 6529 YUMA AZ
2004-12-08 253-266-6XXX T-MOBILE USA, INC. 6529 AUBURN WA
2004-12-08 253-426-2XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-12-08 323-781-4XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2004-12-08 562-205-7XXX T-MOBILE USA, INC. 6529 PICORIVERA CA
2004-12-08 619-754-0XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-12-08 619-754-1XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-12-08 951-442-1XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-12-08 970-208-5XXX T-MOBILE USA, INC. 6529 GRAND JCT CO
2004-12-08 970-208-6XXX T-MOBILE USA, INC. 6529 GRAND JCT CO
2004-12-07 254-462-6XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2004-12-07 510-691-6XXX T-MOBILE USA, INC. 6529 HRCUL-RODE CA
2004-12-07 708-856-9XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2004-12-07 775-247-3XXX T-MOBILE USA, INC. 6529 RENO NV
2004-12-07 815-608-5XXX T-MOBILE USA, INC. 6529 ROCKFORD IL
2004-12-07 920-471-3XXX T-MOBILE USA, INC. 6529 GREEN BAY WI
2004-12-06 224-210-8XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-12-06 602-297-7XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-12-06 708-913-3XXX T-MOBILE USA, INC. 6529 HARVEY IL
2004-12-06 773-494-4XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-12-06 818-270-8XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-12-06 818-284-7XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-12-06 818-284-8XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-12-06 818-332-6XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-12-06 915-443-7XXX T-MOBILE USA, INC. 6529 EL PASO TX
2004-12-06 916-420-7XXX 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.