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01051 Telecom GmbH
01063 Telecom GmbH& Co KG
3T Telekommunikationsgesellschaft GmbH
3U Telecom AG
Acris Telekom GmbH
ADTECH
Aktion doo
Albacom SpA
Aliatel A S
Alptel Telekommunikation
Animatele Inc. (USA)
Arcor AG
Awantel GmbH
BCC Business Comunication Company GmbH
Belgacom
Bisping & Bisping
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Broadnet Mediascape
Bulgarian Telecommunications Company Plc
BT Germany GmbH
BT Infonet GmbH (Germany)
Cable & Wireless
Calltrade Carrier AG
Carrier 24 GmbH
Cegetel
CE Com Germany GmbH
Celox
Claranet GmbH
Coast Media GmbH
Cobalt Group LLC
Cogent Communications
Colt Telecom
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