Colocation-Site NTT Vienna

A High-Performance Location for Your IT

In 2015, the most modern data center of its time was constructed at the southern edge of Vienna. It incorporated expertise from other locations, such as e-shelter Frankfurt (the largest data center operator in Frankfurt am Main, Germany) into the planning process. Particular emphasis was placed on the efficient use of resources. This resulted in an extremely high-performance data center, leading to the additional DIN 50001 certification, above and beyond regular certifications.

next layer operates a fully redundant network node with multiple external fiber-optic links at this site, and a dedicated fully-separated hot/cold aisle area for colocation and cloud services.


High Availability in all Sizes

We provide double-sided colocation cabinets with redundant power supply and air-conditioning, starting at locker-sized quad cabinets. Scaling and growth are possible via half and full cabinets up to dedicated cages. Customer access is always possible for maintenance purposes or for removal – or you can hand over operational management (or parts thereof) to next layer.



  • High-performance data center location, state-of-the-art construction design, certified according to ISO 27001
  • Redundant air conditioning, cold/hot aisle concept according to ASHRAE, certified Eco-Standard, DIN 50001 and DIN EN 50600
  • Redundant power supply (UPS, emergency generators), electricity billing only according to actual usage
  • Early fire detection, fire extinguishing system, fire alarm line to the fire department
  • Perimeter protection, 24/7 access, video surveillance and recording
  • Direct connection to the fiber-optic backbone and the Vienna Internet Exchange location VIX3

Service Units

  • Data center area/cage (m2)
  • Full Cabinet (19“, 42 height units, depth 120 cm)
  • Half Cabinet (19“, 18 height units, depth 120 cm)
  • Quad Cabinet (19“, 8 height units, depth 120 cm)


  • Powered by renewable energy “Green IT”
  • Each circuit is UPS secured
  • 1 + 1 redundant UPS system
  • Emergency power supply with redundantly designed emergency power supply systems with fuel supply for at least 72 hours and emergency supply contracts
  • The power supply is designed as a dual power supply with uninterruptible A and B supply to separate electrical distribution panels for A and B circuits
  • Potential equalization bar, overvoltage protection, and power filter
  • Power circuits transfer to remotely triggerable shockproof power sockets in the back lower third of the cabinets

Climate Control

  • Redundant circulating air coolers (N + 1)
  • Cold aisle cooling according to ASHRAE 2008
  • Air pressure, temperature and humidity sensors


  • All cabinets are pre-wired with redundant Cat 6a, and are fiber-optics readyt
  • Redundant connection to a data center via 6 different fiber-optic links
  • Direct connection to the 500 km metro network and next layer’s Austria backbone
  • Direct fiber-optic connection to 20 data centers and over 50 office buildings in Vienna
  • Internet connection via fiber, 10 Mbps to 100 Gbps possible


  • Access is granted only with ID after referring to an access list managed by next layer
  • 24/7 monitored location, camera surveillance
  • Each cabinet can be individually locked
  • Room-within-a-room concept separates ITC areas from exterior walls
  • State-of-the-art security systems include contactless key cards and personal separation systems
  • Leakage warning system
  • Fire alarm system and gas-based fire suppression system
  • Early fire detection (VESDA), smoke evacuation system
  • Continuous 24/7 monitoring of the entire infrastructure via our next layer monitoring system (NLM) as well as the NTT Vienna/Frankfurt emergency call and service control center

Business Service Levels

  • Tier III data center / service availability 99.98% per year
  • 24/7 continuous operation provision


  • In southwestern Vienna, approximately 6 km from Vienna City Center and 20 km from Vienna International Airport
  • Ground level delivery access possible, equipment can be stored for a fee
  • Parking is available in front of the building
  • Staging & waiting area for customers, free WiFi by next layer in all cages and in the waiting area


  • DIN EN 50600 * Data Center Equipment and Infrastructure, Extended Availability Class 4
  • TUV Süd: Test certificate Tier III based on the TIA 942
  • DIN EN ISO 9001 * Quality Management System
  • DIN EN ISO 27001 based on IT Baseline Protection* Information Security Management System
  • DIN EN ISO 50001 * Energy Management System
  • LEED pre-certification “Platinum” * Highest environmental standards, LEED™ (Leadership in Energy to Environmental Design) Platinum pre-certification by the US Green Building Council

Have we sparked your interest?

If you have any specific questions or would like a quote based on your unique requirements,  please do not hesitate to reach out to us. You are welcome to send us an e-mail to sales(at) or call us at +43 5 1764-622. We look forward to hearing from you!