Nippon Telegraph and Telephone Corporation
9432.TpublicTelecom & AI Infrastructure
Japan's largest telecom and the world's 4th-largest datacenter operator. Developed tsuzumi — a lightweight Japanese/English LLM. Investing heavily in IOWN (Innovative Optical & Wireless Network) — photonic computing infrastructure for AI. ~$12-14B annual CAPEX makes NTT one of the largest non-hyperscaler AI infra investors.
2024 CAPEX
$13.4B
YoY 2024 vs 2023
+9.8%
Latest Quarter
$3.5B
Q4'24
2025 Guidance
$13.0B–$15.0B
CAPEX History — Quarterly
Guidance Tracker
FY2025
On Track
“We are accelerating AI infrastructure investment under our NTT Green Innovation toward 2040 strategy. IOWN photonic network deployment and AI datacenter expansion are our top capital priorities.”
Guided: $13.0B–$15.0B
Key Quotes
Shyam Bhardwaj·CEO, NTT DATA·2024-03-25
“tsuzumi is purpose-built for enterprise AI — lightweight, multilingual, and efficient. NTT is investing in AI infrastructure globally to support the enterprise AI transformation.”
NTT tsuzumi LLM launch announcement
Compute Clusters
tsuzumi LLM cluster
H100 (est.)
operational
Partnerships & Investments
NVIDIA
NTT and NVIDIA partnership for AI factory infrastructure using NVIDIA DGX systems across NTT global datacenters.
compute
SEC Filings
japantelecomdatacenterIOWNtsuzumiAIpublic