EXHIBIT 10.33 CONFIDENTIAL INFORMATION EXECUTION INSTRUMENT 1 ADDENDUM TO THE MASTER AGREEMENT FOR DATA COMMUNICATIONS AND VALUE ADDED SERVICES DATED JANUARY 20, 2000 (THE "AGREEMENT"), ENTERED INTO BY AND BETWEEN AVANTEL, S.A., HEREIN REPRESENTED BY...Addendum to the Master Agreement for Data Communications and Value Added Services • April 1st, 2002 • America Online Latin America Inc • Services-computer programming, data processing, etc.
