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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2004-03-31 219-331-8XXX T-MOBILE USA, INC. 6529 PORTAGE IN
2004-03-31 219-484-9XXX T-MOBILE USA, INC. 6529 GARY IN
2004-03-31 520-250-2XXX T-MOBILE USA, INC. 6529 TUCSON AZ
2004-03-31 520-280-6XXX T-MOBILE USA, INC. 6529 CASAGRANDE AZ
2004-03-31 818-605-1XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-03-31 818-605-2XXX T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-03-31 909-434-5XXX T-MOBILE USA, INC. 6529 FONTANA CA
2004-03-31 951-442-7XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-03-31 951-442-8XXX T-MOBILE USA, INC. 6529 PERRIS CA
2004-03-30 210-255-0XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2004-03-30 310-242-3XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-03-30 310-242-7XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-03-30 310-889-5XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-03-30 310-889-6XXX T-MOBILE USA, INC. 6529 W ANGELES CA
2004-03-30 323-321-1XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2004-03-30 323-321-2XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2004-03-30 432-978-6XXX T-MOBILE USA, INC. 6529 TERMINAL TX
2004-03-30 575-693-0XXX T-MOBILE USA, INC. 6529 CLOVIS NM
2004-03-30 619-471-8XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-30 619-739-2XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-03-30 619-770-6XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-03-30 636-346-0XXX T-MOBILE USA, INC. 6529 CHESTERFLD MO
2004-03-30 715-252-8XXX T-MOBILE USA, INC. 6529 STEVENS PT WI
2004-03-30 760-989-8XXX T-MOBILE USA, INC. 6529 INDIO CA
2004-03-30 773-319-0XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-03-30 773-319-1XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-03-30 773-577-0XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-03-30 773-577-3XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-03-30 806-577-3XXX T-MOBILE USA, INC. 6529 LUBBOCK TX
2004-03-30 818-270-7XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-03-30 909-913-6XXX T-MOBILE USA, INC. 6529 S BERNDINO CA
2004-03-30 972-746-3XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-03-29 208-577-7XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-03-29 208-577-8XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-03-29 208-695-5XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-03-29 253-217-8XXX T-MOBILE USA, INC. 6529 AUBURN WA
2004-03-29 253-961-2XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-03-29 254-220-8XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2004-03-29 254-733-0XXX T-MOBILE USA, INC. 6529 WACO TX
2004-03-29 415-299-1XXX T-MOBILE USA, INC. 6529 SAN RAFAEL CA
2004-03-29 435-862-4XXX T-MOBILE USA, INC. 6529 ST GEORGE UT
2004-03-29 509-594-8XXX T-MOBILE USA, INC. 6529 YAKIMA WA
2004-03-29 520-234-0XXX T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2004-03-29 602-502-0XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-03-29 702-413-4XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-03-29 714-369-4XXX T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2004-03-29 719-369-2XXX T-MOBILE USA, INC. 6529 PUEBLO CO
2004-03-29 760-524-0XXX T-MOBILE USA, INC. 6529 VICTORVL CA
2004-03-29 773-310-0XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-03-29 773-310-1XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL

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.