Internet Initiative Japan (IIJ) data centers

Coloprice tracks 12 Internet Initiative Japan (IIJ) facilities in Japan, spread across 5 cities. 1 of 12 publish IT capacity — 20 MW combined; the rest do not disclose power.

By status: 12 operational. Certifications reported across these facilities include ISO 14001, ISO 27001, FISC, JDCC Facility Standard Tier 3, JDCC Facility Standard Tier 3 (partial Tier 4).

Key facts

Facilities: 12
Countries: Japan
Cities: 5
Published capacity: 20 MW (1 of 12 facilities publish MW)
Status: 12 operational
Certifications: ISO 14001, ISO 27001, FISC, JDCC Facility Standard Tier 3, JDCC Facility Standard Tier 3 (partial Tier 4)
Sources: IIJ — Shiroi Data Center Campus · IIJ — Matsue Data Center Park (technical profile) · IIJ — colocation data center menu (urban data centers)

Figures are aggregated from the facility cards below. Capacity is summed only where the operator publishes MW, so totals are floors, not estimates.

Coloprice Score of Internet Initiative Japan (IIJ)

Average score: 11 out of 100 across 12 facilities
Best facility: IIJ Shiroi Data Center Campus · 37D
Class distribution: D 1E 1limited data 10

Each facility is scored on its own from published, source-cited data; the operator figure is a plain average. How the score is calculated.

Internet Initiative Japan (IIJ) facilities in the catalog

Facility	Location	MW	Score	Status
IIJ Shiroi Data Center Campus	Tokyo, Japan	20	37D	Operational
IIJ Matsue Data Center Park	Matsue, Shimane, Japan	—	26E	Operational
IIJ Shibuya Data Center	Meguro, Tokyo, Japan	—	7·	Operational
IIJ Ikebukuro Data Center	Toshima, Tokyo, Japan	—	7·	Operational
IIJ Nerima Data Center	Nerima, Tokyo, Japan	—	7·	Operational
IIJ Mitaka Data Center	Mitaka, Tokyo, Japan	—	7·	Operational
IIJ Yokohama 1 (Kohoku) Data Center	Tsuzuki, Yokohama, Japan	—	7·	Operational
IIJ Yokohama 2 (Tsuzuki) Data Center	Tsuzuki, Yokohama, Japan	—	7·	Operational
IIJ Shinsaibashi Data Center	Nishi, Osaka, Japan	—	7·	Operational
IIJ Dojima Data Center	Kita, Osaka, Japan	—	7·	Operational
IIJ Takatsu Data Center	Chuo, Osaka, Japan	—	7·	Operational
IIJ Fukuoka Airport Data Center	Kasuya, Fukuoka, Japan	—	7·	Operational

Operator vs operator

Equinix vs Internet Initiative Japan (IIJ)Internet Initiative Japan (IIJ) vs MC Digital Realty Internet Initiative Japan (IIJ) vs NTT Communications (NTT DOCOMO BUSINESS) — Nexcenter

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