Inside the option of Ip management, you will find the ripe role. A role object is similar to a person object. However, instead of describing a single person, it represents a role performed by one or more people.
To create a ripe role, go to :
After you create the ripe role, you can assign it to the inetnum.
When you create an inetnum, you can choose to which ripe role is going to be assign.
Learn more about inetnums