Techtel LMDS Comunicaciones Interactivas S.A. (ASN 11664,ASN 14535 - AR-TLCI-LACNIC); ERTACH S.A.  (ASN 17401 - AR-MASA5-LACNIC); TELMEX; CTI Compania de Telefonas del Interior S.A. (ASN-19037 - AR-CCTI1-LACNIC )