Data center projects — country=Japan

Every tracked AI data center project, grouped by build status. Operational, under construction, announced, and permitted — with developer, tenant, capacity, and cost details.

Amazon Web Services — AP-NORTHEAST-1 Tokyo Region — 500 MW, Tokyo, Japan (Amazon Web Services) · operational
AirTrunk — TOK1 AI Expansion (Tokyo) — 300 MW, Inzai, Japan (AirTrunk) · under construction
SoftBank Tomakomai AI Data Center (Japan) — 300 MW, Tomakomai, Japan (SoftBank Corp.) · under construction
Amazon Web Services — Osaka Region (AP Northeast 3) — 150 MW, Osaka, Japan (Amazon Web Services) · operational
SoftBank — Sakai AI Data Center — 150 MW, Sakai, Japan (SoftBank) · under construction
TY15x Tokyo — 30 MW, Tokyo, Japan, Japan (Equinix) · under construction
Hiroshima HBM Fab, Hiroshima, Japan, Japan (Micron) · announced
JASM Fab 1 (Kumamoto), Kumamoto, Japan, Japan (TSMC) · operational
AIST ABCI-3 Supercomputer (Japan), Tsukuba, Japan (National Institute of Advanced Industrial Science and Technology (AIST)) · operational