Customers served during the past 10 years
- Mobistar - Belgium
- Unitymedia - Germany
- BT - Germany and UK
- Axione - France
- eunetworks - Germany and UK
- EMC² - Germany
- T-mobile - Germany
- Kabel Deutschland
- AriaDSL - Italy
- meteor - Ireland
- Telfort - Netherland
- KPN - Netherland
- Telefonica - Germany
- MTU - Norway
- Orange - Switzerland
- Vodafone - Germany
- T-mobile - Austria
- E-Plus - Germany
- DFN - Germany
- Sunet - Sweden
- T-Systems - Germany and Switzerland
- completel - France
- QSC - Germany
- Global Connect - Denmark
- Novator - Iceland
- TeliaSonera - Sweden
- Swisscom - Switzerland
- TDC - Denmark
- Smart Telecom - Ireland
- VoxMobile - Luxembourg
- Sunrise - Switzerland
- Belgacom - Belgium
- 3GIS - Sweden