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Data centres in Japan
As of 16 October 2026, the Data Centre Register lists 288 data centres in Japan with 1,665 MW of live IT capacity and 5,185 MW in the pipeline (288 MW under construction, 2,321 MW committed and 2,577 MW at an early stage).
Capacity by stage
| Stage | Sites | IT capacity |
|---|---|---|
| Live | 209 | 1,665 MW |
| Under construction | 16 | 288 MW |
| Committed | 16 | 2,321 MW |
| Early stage | 21 | 2,577 MW |
| Land banked | 5 | 79 ha |
| No capacity listed | 21 | – |
A site counts in the most advanced stage that has capacity listed. Pipeline is under construction, committed and early stage together.
Largest operators in Japan
| Operator | Sites | Live MW | Pipeline MW |
|---|---|---|---|
| Goodman | 2 | 51 | 677 |
| Ada Infrastructure | 6 | 3 | 622 |
| Amazon Web Services | 6 | 97 | 435 |
| AirTrunk | 4 | 38 | 490 |
| NTT Global Data Centers | 37 | 186 | 211 |
| APL | 2 | 0 | 301 |
| Equinix | 21 | 163 | 115 |
| MC Digital Realty | 9 | 151 | 122 |
Cities
| City | Sites | Live MW | Pipeline MW |
|---|---|---|---|
| Tsukuba | 1 | 0 | 600 |
| Hachioji-shi | 10 | 81 | 268 |
| Akishima | 1 | 0 | 295 |
| Ibaraki | 6 | 21 | 250 |
| Hidaka | 1 | 0 | 267 |
| Sagamihara-shi | 4 | 70 | 166 |
Types of data centre
Japan has 222 colocation and 66 self-build data centres. By category: Retail (107), Wholesale (104), Self-build Network & Telco (27), Self-build Systems Integrator/Managed Service Providers (19), Build-to-suit (11), Self-build Public Cloud (9). Ready-for-service years listed run from 1989 to 2029.
See every Japan site on the map
The register has a record for each of these 288 sites: operator, address, coordinates, capacity by stage, ready-for-service year and sources. Sign in with Google for a free account: 5 full site records and 100 sites in lists a day. Pro (US$49 a month) opens 300 records a day, full query lists and Ask AI.
Frequently asked questions
- How many data centres are there in Japan?
- The Data Centre Register lists 288 data centres in Japan as of 16 October 2026: 209 live, 16 under construction, 16 committed and 21 at an early stage, of which 222 colocation and 66 self-build.
- What is the data centre capacity of Japan?
- Japan has 1,665 MW of live data centre IT capacity, with a further 5,185 MW in the pipeline (288 MW under construction, 2,321 MW committed and 2,577 MW at an early stage), for 6,850 MW in total.
- Which operators have the most data centre capacity in Japan?
- By total IT capacity listed, the largest operators in Japan are Goodman, Ada Infrastructure and Amazon Web Services. Goodman has 2 sites with 728 MW.
- Where are the data centres in Japan?
- The cities with the most data centre capacity in Japan are Tsukuba, Hachioji-shi, Akishima and Ibaraki.
- Where does this data come from?
- The Data Centre Register at globaldcwiki.com is built from a register of data centre sites. Every proposed change is checked against outside sources and accepted by an admin before it appears. Figures were last updated on 16 October 2026.
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Last updated 16 October 2026. Cite as: Data Centre Register, "Data centres in Japan", https://www.globaldcwiki.com/data-centres/japan.