KDDI / TELEHOUSE data centers in Japan

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

KDDI / TELEHOUSE · Fuchu, Tokyo

TELEHOUSE TOKYO Fuchu

Current commercial data center in Fuchu, Tokyo, operated by KDDI/TELEHOUSE.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides a redundant air conditioning system. Facility-specific method is not disclosed.

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Fukuoka City, Fukuoka Prefecture

TELEHOUSE FUKUOKA

Current TELEHOUSE commercial data center in Fukuoka.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Hiroshima City, Hiroshima Prefecture

TELEHOUSE HIROSHIMA

Current TELEHOUSE commercial data center in Hiroshima.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Koto Ward, Tokyo

TELEHOUSE TOKYO Koto

Current commercial data center in Koto Ward, Tokyo, operated by KDDI/TELEHOUSE.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides a redundant air conditioning system. Facility-specific method is not disclosed.

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Naka Ward, Nagoya City, Aichi Prefecture

TELEHOUSE NAGOYA Nagoya-naka

Current TELEHOUSE commercial data center in Naka Ward, Nagoya City.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Naka Ward, Nagoya City, Aichi Prefecture

TELEHOUSE NAGOYA Sakae

Current TELEHOUSE commercial data center in Sakae, Nagoya.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Naha City, Okinawa Prefecture

TELEHOUSE NAHA

Current TELEHOUSE commercial data center in Naha.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Chuo Ward, Osaka City, Osaka Prefecture

TELEHOUSE Osaka

Connectivity hub in Osaka Business Park. In addition to network aggregation such as JPIX, in-building connection to AWS Direct Connect has been available since 2024.

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

Operation announced · Checked 2026-09-25

KDDI / TELEHOUSE · Chuo Ward, Osaka City, Osaka Prefecture

TELEHOUSE Osaka 2

High-density colocation facility in Chuo Ward, Osaka City opened in August 2015. Approximately 700 racks, 6.6 MW total, designed for a maximum of 30 kVA/rack.

Rack / cabinet capacity: 700
Rack power: Maximum 30 kVA (effective 20 kVA)/rack, average 15 kVA (effective 10 kVA)/rack
Cooling: Air-cooled modular chiller, underfloor air discharge

Operation announced · Checked 2026-09-25

KDDI / TELEHOUSE · Chiyoda Ward, Tokyo

TELEHOUSE Tokyo Otemachi

Clusters JPIX and approximately 30 major telecom carriers and ISPs. Supports mutual interconnection via in-building cabling and 24-hour operations.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Air Conditioning Configuration N+1

Operation announced · Checked 2026-09-25

KDDI / TELEHOUSE · Oyama City, Tochigi Prefecture

TELEHOUSE OYAMA

Current TELEHOUSE commercial data center in Oyama.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Sapporo City, Hokkaido

TELEHOUSE SAPPORO

Current TELEHOUSE commercial data center in Sapporo.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Sendai, Miyagi Prefecture

TELEHOUSE SENDAI

Current TELEHOUSE commercial data center in Sendai.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Shibuya Ward, Tokyo

Verification environment for direct liquid cooling and power technologies for GPUs opened in April 2025 within an existing DC. Conditions for liquid cooling provision on commercial racks have not been verified.

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

Operation announced · Checked 2026-09-25

KDDI / TELEHOUSE · Tama City, Tokyo

TELEHOUSE TOKYO Tama 3

Opened in 2016 in Tama City. Approximately 1,300 racks, 14 MW facility total. Design PUE 1.31, up to 42 kVA/rack (design value).

Rack / cabinet capacity: 1,300
Rack power: Maximum rated 42 kVA (effective 30 kVA)/rack, average rated 21 kVA (effective 15 kVA)/rack
Cooling: Air-cooled modular chiller, underfloor air discharge

Operation announced · Checked 2026-09-25

KDDI / TELEHOUSE · Tama City, Tokyo

TELEHOUSE TOKYO Tama 5

Existing hyperscale site alongside Tama 3. Supports room-level provisioning and connectivity to the KDDI network. Separate facility from Tama 5-2nd, scheduled to open in 2027.

Rack / cabinet capacity: Not verified
Rack power: High power supply capacity (figures undisclosed)
Cooling: Cooling method is undisclosed on the current page.

Operation announced · Checked 2026-09-25

KDDI / TELEHOUSE · Chiyoda-ku, Tokyo

TELEHOUSE TOKYO Iidabashi

Current TELEHOUSE commercial data center in the Iidabashi area.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23

KDDI / TELEHOUSE · Minato Ward, Tokyo

TELEHOUSE TOKYO Odaiba

Current TELEHOUSE commercial data center in the Odaiba area.

Rack / cabinet capacity: Not verified
Rack power: Not verified
Cooling: Provides redundant air conditioning (cooling method by site is undisclosed).

Operation announced · Checked 2026-09-23