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
2004-07-09 312-730-6XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-07-09 312-730-7XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-07-09 559-347-1XXX T-MOBILE USA, INC. 6529 FRESNO CA
2004-07-09 559-455-8XXX T-MOBILE USA, INC. 6529 FRESNO CA
2004-07-09 630-456-1XXX T-MOBILE USA, INC. 6529 WHEATON IL
2004-07-09 630-550-2XXX T-MOBILE USA, INC. 6529 BARTLETT IL
2004-07-09 630-639-3XXX T-MOBILE USA, INC. 6529 W CHICAGO IL
2004-07-09 702-273-0XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-07-09 702-273-6XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-07-09 702-273-7XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-07-09 702-273-8XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-07-09 708-362-4XXX T-MOBILE USA, INC. 6529 HARVEY IL
2004-07-09 708-623-4XXX T-MOBILE USA, INC. 6529 TINLEYPARK IL
2004-07-09 708-983-3XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2004-07-09 708-983-4XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2004-07-09 708-983-5XXX T-MOBILE USA, INC. 6529 CHICAGOHTS IL
2004-07-09 714-209-5XXX T-MOBILE USA, INC. 6529 CYPRESS CA
2004-07-09 773-289-7XXX T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2004-07-09 773-733-1XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-07-09 773-733-2XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-07-09 773-733-3XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-07-08 515-559-6XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2004-07-08 515-559-7XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2004-07-08 515-559-8XXX T-MOBILE USA, INC. 6529 DES MOINES IA
2004-07-07 217-565-9XXX T-MOBILE USA, INC. 6529 TAYLORVL IL
2004-07-07 619-212-2XXX T-MOBILE USA, INC. 6529 EL CAJON CA
2004-07-07 619-781-7XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-07-07 808-428-7XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-07 808-428-8XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-07-07 818-744-2XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-07-07 951-275-6XXX T-MOBILE USA, INC. 6529 RIVERSIDE CA
2004-07-06 253-203-4XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-07-06 310-404-6XXX T-MOBILE USA, INC. 6529 CMTN GRDN CA
2004-07-06 310-774-7XXX T-MOBILE USA, INC. 6529 MALIBU CA
2004-07-06 314-480-2XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2004-07-06 415-283-5XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-07-06 415-283-6XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-07-06 415-283-7XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-07-06 415-283-8XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-07-06 425-443-4XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2004-07-06 425-445-4XXX T-MOBILE USA, INC. 6529 BELLEVUE WA
2004-07-06 562-841-7XXX T-MOBILE USA, INC. 6529 LAKEWOOD CA
2004-07-06 619-335-7XXX T-MOBILE USA, INC. 6529 LA MESA CA
2004-07-06 626-200-5XXX T-MOBILE USA, INC. 6529 PSDN PSDN CA
2004-07-06 626-200-6XXX T-MOBILE USA, INC. 6529 PSDN PSDN CA
2004-07-06 650-200-5XXX T-MOBILE USA, INC. 6529 SAN MATEO CA
2004-07-06 650-267-0XXX T-MOBILE USA, INC. 6529 SSNFRNCSCO CA
2004-07-06 650-861-7XXX T-MOBILE USA, INC. 6529 MT VIEW CA
2004-07-06 714-244-0XXX T-MOBILE USA, INC. 6529 ORANGE CA
2004-07-06 714-244-7XXX T-MOBILE USA, INC. 6529 ORANGE 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.