Welcome to upstreamNet Communications

Where first-class colocation and best IP connectivity is guaranteed.

Our core competencies are the operation of (bank) certified data centers and the provisioning of IP connectivity as member of the international network operator AS8218. Being Tier2 provider we deliver connectivity to national internet service providers and end costumers – mainly in data center operations – with redundant broadband internet connectivity. 

Ob Housing oder IP-Connectivity – Verfügbarkeit und Sicherheit gepaart mit Flexibilität und Handschlagqualität sind jene Faktoren, die zum Erfolg unserer Kunden beitragen


About us

Als österreichisches Unternehmen wird upstreamNet seit bald zwei Jahrzehnten seinem ausgezeichneten Ruf für qualitativ hochwertige Housingdienste und IP-Connectivity auf höchstem Niveau gerecht. Mit Änderung in der Eigentümerstruktur 2010 ist das erfolgreiche Unternehmen breiter aufgestellt und hat durch den Unternehmensverbund das Service- und Leistungsportfolio u.a. um Infrastrukturlösungen, Managed Services, Applikationen und qualifizierte Beratungsleistungen erweitert.

The focus of the company's activities will continue to be the operation of (financial)certified data centers in the Vienna area, as well as IP connectivity via the international network AS8218, which was set up in 2004 together with the French partner Neo Telecoms. As part of this network, upstreamNet provides, among other things, national Internet providers with a fail-safe international connectivity. The main focus is on customers who operate internet-critical services and require high bandwidths in addition to guaranteed availability. In spite of or perhaps because of these international possibilities, upstreamNet is your Austrian solution provider to realize all the topics in a straightforward, competent way and from a single source.

Vision - Mission - Strategy


Availability, security, flexibility and quality – these factors significantly contribute to the success of our customers.


Through our services and the quality of our services we are the preferred partner for all of our services and products.


We facilitate and optimize information and communication for our customers to increase their competitiveness.


With our comprehensive portfolio we strive to establish long-term client relationships. Our goal is to contribute the success of our customers.


March 1999
Founding of AboveNet Communications GmbH, an Austrian subsidiary of AboveNet Communications Inc., one of the world's largest internet network and data center operators. The company is founded by a joint venture with the Raiffeisen Rechenzentrums GmbH.

March 2000
Metromedia Fiber Network (MFN) acquires AboveNet Communications Inc. with all its subsidiaries. In the course of this transaction, MFN also acquires the shares of Raiffeisen from the joint venture and AboveNet Austria is integrated into the Group as a whole.

March 2004
The Austrian subsidiary is sold through a management buy-out as part of the restructuring of the AboveNet Inc. business unit. The management is taken over by Andreas Welleditsch, former general manager of AboveNet Austria and now managing shareholder.

October 2004
AboveNet Communications GmbH now operates under the name upstreamNet Communications GmbH. As a Tier 2 provider, the company continues to provide its customers in the usual quality with high-availability services in the new “AS8218” network.

November 2010
After changes in the ownership structure, the portfolio in the new company network is expanded to include infrastructure solutions, managed services, applications and qualified consulting services. upstreamNet is a management owned, independent Austrian company.

March 2013
The possibilities in the area of colocation are expanded by adding data center space in the on demand center (ODC21). As of now additional 200 square meter of data center space is available, which can be adapted to individual customer requirements. The integration into the own Dark Fiber Backbone opens up new possibilities for high availability and site redundancy from a single source. 

May 2021
In a major relocation project of a customer and on the basis of a new framework agreement, the Raiffeisen Datacenter Stadlau (1220 Vienna) is moved into as an additional data center location, where the company provides bank-certified housing and IP connectivity with redundant connection to the AS8218 backbone for its customers. In one of the most modern data center locations in Austria, the quality of the services is the top priority, which can be ensured around the clock at affordable prices with an included NOC on site.