PUBLIC EVIDENCE / JAPAN

Read Japan's data centers through evidence.

A source-backed watch of facilities and development plans, built from official releases, public records, and reporting.

A data center campus and transmission lines in Japan
Facilities and gridPublic data
Latest news
All news

The public register today

See every published facility and plan by its current status.

Published facilities79Open the facility mapOperational52Announced20Under construction3
Open data with a source trail

Source type and evidence level stay attached to each facility.

NATIONWIDE MAP

Where the activity is

Compare facility locations and current status across Japan.

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Recent activity

Follow the changes from first announcement to operation in a simple timeline.

View all activity
KDDI 大阪堺データセンター

Osaka/推論環境の拡充を発表(コンテナ型データセンター整備・2027年度にNVIDIA HGX Rubin NVL8導入)

Operational

Read one map three ways

Location is only the start. Status and evidence stay visible beside it.

Status

Separate announced plans, prior consultation, construction, and operation.

Evidence

Show the source type and evidence level for every published facility.

Location

Distinguish precise coordinates from municipality reference points.

Make the signals easier to see.

A public register for the facts communities need to follow change with care.

Open the public register