Exhibit 13.1


April 14, 2005

Securities and Exchange Commission
450 Fifth Street, N.W
Washington, D.C. 20549

Ladies and Gentlemen:

     The certification set forth below is being submitted to the Securities and
Exchange Commission solely for the purpose of complying with Section 1350 of
Chapter 63 of Title 18 of the United States Code. This certification is not to
be deemed filed pursuant to the Securities Exchange Act of 1934 and does not
constitute a part of the Annual Report on Form 20-F (the "Report") accompanying
this letter.

     Joaquin Faura Battle, the President and Chief Executive Officer of Terra
Networks, S.A. and Elias Rodriguez-Vina Cancio, the Chief Financial Officer of
Terra Networks, S.A., each certifies that, to the best of his knowledge:

     1. the Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     2. the information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of Terra
Networks, S.A.

                                           /s/ Joaquin Faura Battle
                                           -------------------------------------
                                           Name:  Joaquin Faura Battle
                                           President and Chief Executive Officer


                                           /s/ Elias Rodriguez-Vina Cancio
                                           -------------------------------------
                                           Name:  Elias Rodriguez-Vina Cancio
                                           Chief Financial Officer

     A signed original of this written statement required by Section 906, or
other document authenticating, acknowledging, or otherwise adopting the
signature that appears in typed form within the electronic version of this
written statement required by Section 906, has been provided to us and will be
retained by us and furnished to the Securities and Exchange Commission or its
staff upon request.