EXHIBIT 21.01
CSG Systems International, Inc.
Subsidiaries of the Registrant
As of December 31, 2010
| Subsidiary |
State or Country of Organization | |
| Billing Intec Uruguay S.A. |
Uruguay | |
| Comtecnet Incorporated |
New Jersey | |
| CSG Interactive Messaging, Inc. |
Delaware | |
| CSG International Holdings, LLC |
Delaware | |
| CSG Media LLC |
Delaware | |
| CSG Services, Inc. |
Delaware | |
| CSG Systems International, Inc. |
Delaware | |
| CSG Systems U.K. Limited |
United Kingdom | |
| CSG Systems U.S. Holding Limited |
United Kingdom | |
| CSG Systems, Inc. |
Delaware | |
| Dataphone (Holdings) Limited |
United Kingdom | |
| DataProse, Inc. |
California | |
| Digiquant Malaysia Sdn. Bhd |
Malaysia | |
| Inception to Implementation (M) Sdn. Bhd |
Malaysia | |
| Independent Technology Billing Solutions S de RL de CV |
Mexico | |
| Independent Technology Systems (India) Pvt. Ltd. |
India | |
| Independent Technology Systems Limited |
United Kingdom | |
| Independent Technology Systems Scandinavia AB |
Sweden | |
| Independent Technology Systems SL Unipersonal |
Spain | |
| Intec (Guernsey) 1 Limited |
Guernsey | |
| Intec (Guernsey) 2 Limited |
Guernsey | |
| Intec Billing (Holding) Canada Ltd |
Canada | |
| Intec Billing Australia Pty Ltd |
Australia | |
| Intec Billing Canada Ltd. |
Canada | |
| Intec Billing Ireland |
Ireland | |
| Intec Billing Nigeria Limited |
Nigeria | |
| Intec Billing, Inc. |
Delaware | |
| Intec Outsourcing Services (Midwest), Inc. |
Delaware | |
| Intec Systems (Asia) Sdn Bhd |
Malaysia | |
| Intec Systems Vietnam Co, Ltd |
Vietnam | |
| Intec Telecom Systems (Australia) Pty Ltd |
Australia | |
| Intec Telecom Systems (France) SARL |
France | |
| Intec Telecom Systems (Revenue Assurance Division) Limited |
United Kingdom | |
| Intec Telecom Systems (Singapore) Pte Ltd. |
Singapore | |
| Intec Telecom Systems Denmark A/S |
Denmark | |
| Intec Telecom Systems Deutschland GmbH |
Germany | |
| Intec Telecom Systems do Brasil Limitada |
Brazil | |
| Intec Telecom Systems Italia SpA |
Italy | |
| Intec Telecom Systems Limited |
United Kingdom | |
| Intec Telecom Systems Pty Ltd |
Australia | |
| Intec Telecom Systems South Africa (Pty) Limited |
South Africa | |
| Intec USA, Inc. |
Delaware | |
| Telution, Inc. |
Delaware | |