NTT Global Data Centers / NTT DATA data centers in Japan

6 facilities in this directory. Specifications are based on public sources.

NTT Global Data Centers / NTT DATA · Seika-cho, Soraku-gun, Kyoto Prefecture

Keihanna OSK11 Data Center

A 30MW AI-ready data center in Seika-cho, Kyoto Prefecture. Opening in 2026, it supports both air conditioning and DLC.

Rack / cabinet capacity: Not verified
Rack power: IT load 30MW
Cooling: Water-cooled N+1, wall-blow air conditioning, DLC compatible

Operation announced · Checked 2026-09-23

NTT Global Data Centers / NTT DATA · Ibaraki City, Osaka Prefecture

Osaka OSK12 Data Center

An AI-ready data center planned for service delivery in 2028 in Ibaraki City, Osaka Prefecture. Phase 1 is planned for 18MW, with a 2-building total of 36MW.

Rack / cabinet capacity: Not verified
Rack power: Phase 1 IT load 18MW, 2-building plan 36MW
Cooling: N+1 wall-blow air conditioning, air-cooled modular chillers, DLC compatible

Planned · Checked 2026-09-23

NTT Global Data Centers Japan / NTT DATA · Shiroi City, Chiba Prefecture

Tokyo TKY11 Data Center

An AI-ready data center scheduled to commence service in April 2027 in Shiroi City, Chiba Prefecture. Stated as 24MW in the official brochure and 50MW total IT capacity in the official announcement.

Rack / cabinet capacity: Not verified
Rack power: 24MW for IT equipment (official brochure) / 50MW total IT capacity (official announcement)
Cooling: Wall-blow air conditioning, air-cooled centrifugal chillers, DLC compatible

Planned · Checked 2026-09-23

NTT Global Data Centers Corporation (NTT DATA Group) · Ibaraki City, Osaka Prefecture

Osaka Kita Data Center

Name, operating entity, published address, and operational status confirmed via official primary sources. Facility specifications have not been investigated.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Not verified

Planned · Checked 2026-09-24

NTT Global Data Centers Corporation (NTT DATA Group) · Shiroi City, Chiba Prefecture

Tokyo TKY12 Data Center

Name, operating entity, published address, and operational status confirmed via official primary sources. Facility specifications have not been investigated.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Not verified

Planned · Checked 2026-09-24

NTT Global Data Centers Corporation (NTT DATA Group) · Tochigi City, Tochigi Prefecture

Tochigi Data Center (tentative name)

Name, operating entity, published address, and operational status confirmed via official primary sources. Facility specifications have not been investigated.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Not verified

Planned · Checked 2026-09-24