Colt Technology Services GmbH
Gervinusstraße 18-22, 60322 Frankfurt/Main, Deutschland
+491782658011
Swisscom
Swisscom (Switzerland) Ltd.
IP-Plus engineering, Postfach, CH-3050, Bern, Switzerland
+41-58-221-98
BT Global Europe
BT Global Europe B.V. Magyarországi Fióktelepe, H-1117 Budapest, Budafoki út 91-93.
+36 1 777 0144