C21, the CDLAN's Tier IV compliant data center

in the Milan Internet Exchange, italian telecommunications hub

Do you need a Data Center Europe based? C21 is the best performing Data Center operating in the campus of via Caldera in Milan, the highest IP dense area in Italy and location of Milan Internet Exchange (MIX), peering point with more than 200 network operator.

Innovative data center

New generation Data Center, designed to improve innovation and increase the competitive advantage of hosted business, which can benefit from services such as: server, storage and networking. C21 places hosted business at the centre of the most important world business markets, whether they are TELCO operator and carrier, ISP, financial business, B2B, manufacturer, technological hotspots. The Data Center is neutral to Carrier and Cloud Provider.


Independant building, multi level security H24: internal video-surveillance , revolving doors for customers area, proximity badge for door access, loading/unloading area surveillance.

Zero Latency

Low latency Connectivity and internet FLAP, able to provide fast connection in Europe.

Tier IV compliant

Up to 3 MW of energy. Electrical and mechanical level of redundancy 2N, equivalent to Tier IV standard of the Uptime Institute


Data storage area designed for cold containment capable of dissipating up to 24 kW IT per rack.

Download the business brochure

Building specs

3,100 m2 of gross space

6 x 1MVA GE backup (2 installed to date)

2N+1 MEP design Tier IV-equivalent

Slab MAX load 800 kg/m2

Redundant Carrier Rooms and Meet-Me-Rooms

Multiple physical security layers (contacless keycards, CCTV, man trap)

23kV utility supply up to 6MW dual feed (1MW single feed to date)

Dedicated loading / unloading area with warehouse and internal goods lift

On site engineers and support 24 x 7