Site: NTT Zurich 1

Company: NTT
Metro: Zurich
Country: Switzerland
Region: Western Europe
Region: Europe
Region: EMEA
Region: World
Hofwisenstrasse 56

Gross SqFt: 118,403
Total Power: ??? NN
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The site was opened in June 2011, is located in Rümlang near Zurich. The building, consisting of two parts, has about 7,000 sqm of high-availability data center space in the first building. The building has also obtained LEED Platinum Pre-Certification from the US Green Building Council.

Site History

The site was formerly known as "e-shelter Zurich"


  • Two independent feeds on the medium voltage level 16 kV
  • Two separate UPS systems (A- and B-supply)
  • Redundant emergency power system with diesel generators


  • Monitoring by e-shelter own 24/7 Security Command and Control Center with security personnel from e-shelter security on-site
  • Standardized security processes and the 7-level security system secure the tenant areas and technical operations
  • Access control via non-contact chip and PIN or optional biometrics signature
  • Secured perimeter zones with electronically monitored security fencing system, incorporating anti-climb and anti-tunneling protection


  • Carrier-neutral
  • Carrier-mix from global Tier 1 supplier to local supplier
  • Direct, redundant connection to SWISSIX
  • Via several partners direct connection to international internet exchanges
  • Cross-Connects are realized via dedicated, redundant designed pipelines
  • Datacenter Connects between the data center Zurich and e-shelter locations, e.g. Campus Frankfurt 1 and Frankfurt 3; on request as well to commercial third-party data centers

Map and Nearby Locations:

Hofwisenstrasse 56

SITES within 15 miles of NTT Zurich 1

Show SqM

Distance Site name SqFt
1.34 miles Interxion ZUR2
1.39 miles Interxion ZUR3
1.44 miles Interxion Zurich 71,042
1.47 miles Green Datacenter Glattbrugg
4.25 miles Green Datacenter Dielsdorf Campus
4.38 miles Level3 Zürich
4.40 miles Equinix Zurich ZH2 ZH4 16,932
4.40 miles EXA Zurich 12,873
4.42 miles Equinix Zürich ZH1 5,813
4.77 miles Equinix Zurich ZH5 71,800

Small field next to e shelter's facility in Rümlang
View from Hofwisenstrasse road

June 2019

Zurich data sheet (English)

November 2020

Zurich 1 Data Sheet (PDF)