Swisscom
Swisscom (Switzerland) Ltd.
IP-Plus engineering, Postfach, CH-3050, Bern, Switzerland
+41-58-221-98
S3 Company Ltd.
Bulgaria, Sofia, 1574, blvd. Shipchenski prohod 63
+359 88 661 8006
Colt Technology Services GmbH
Gervinusstraße 18-22, 60322 Frankfurt/Main, Deutschland
+491782658011