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
2004-04-28 310-698-2XXX T-MOBILE USA, INC. 6529 REDONDO CA
2004-04-28 415-568-1XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-04-28 520-280-3XXX T-MOBILE USA, INC. 6529 CASAGRANDE AZ
2004-04-28 520-979-7XXX T-MOBILE USA, INC. 6529 TUCSON AZ
2004-04-28 520-979-8XXX T-MOBILE USA, INC. 6529 TUCSON AZ
2004-04-28 530-903-7XXX T-MOBILE USA, INC. 6529 PLVL WEST CA
2004-04-28 562-396-1XXX T-MOBILE USA, INC. 6529 DOWNEY CA
2004-04-28 562-556-7XXX T-MOBILE USA, INC. 6529 WHITTIER CA
2004-04-28 602-214-0XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-04-28 602-214-2XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-04-28 626-373-5XXX T-MOBILE USA, INC. 6529 COVINA CA
2004-04-28 626-628-7XXX T-MOBILE USA, INC. 6529 PSDN PSDN CA
2004-04-28 630-550-1XXX T-MOBILE USA, INC. 6529 BARTLETT IL
2004-04-28 630-849-9XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-04-28 714-653-0XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-04-28 773-319-6XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-04-28 773-319-7XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-04-28 773-319-8XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-04-28 815-608-3XXX T-MOBILE USA, INC. 6529 ROCKFORD IL
2004-04-27 208-757-7XXX T-MOBILE USA, INC. 6529 IDAHOFALLS ID
2004-04-27 408-387-4XXX T-MOBILE USA, INC. 6529 SNJS WEST CA
2004-04-27 619-863-3XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-04-27 760-412-2XXX T-MOBILE USA, INC. 6529 BRAWLEY CA
2004-04-27 801-494-9XXX T-MOBILE USA, INC. 6529 PROVO UT
2004-04-27 818-274-1XXX T-MOBILE USA, INC. 6529 CANOGAPARK CA
2004-04-27 818-274-2XXX T-MOBILE USA, INC. 6529 CANOGAPARK CA
2004-04-27 818-441-3XXX T-MOBILE USA, INC. 6529 BRBN BRBN CA
2004-04-26 708-856-4XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2004-04-26 708-856-5XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2004-04-22 559-347-7XXX T-MOBILE USA, INC. 6529 FRESNO CA
2004-04-22 626-271-3XXX T-MOBILE USA, INC. 6529 LA PUENTE CA
2004-04-22 626-348-1XXX T-MOBILE USA, INC. 6529 ARCADIA CA
2004-04-22 916-266-1XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-04-21 216-255-0XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2004-04-21 253-486-7XXX T-MOBILE USA, INC. 6529 AUBURN WA
2004-04-21 253-576-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-21 253-961-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-21 310-618-4XXX T-MOBILE USA, INC. 6529 TORRANCE CA
2004-04-21 360-970-0XXX T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-04-21 360-970-2XXX T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-04-21 702-785-1XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-04-21 702-785-3XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-04-21 702-785-4XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-04-21 801-499-1XXX T-MOBILE USA, INC. 6529 KAYSVILLE UT
2004-04-21 951-567-4XXX T-MOBILE USA, INC. 6529 MORENO CA
2004-04-21 951-567-6XXX T-MOBILE USA, INC. 6529 MORENO CA
2004-04-20 253-273-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-20 253-273-3XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-20 253-273-4XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-04-20 512-299-1XXX T-MOBILE USA, INC. 6529 AUSTIN TX

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.