# Primary and Secondary Objects

Objects in the RIPE Database naturally fall into two categories, primary and secondary.

Primary objects contain operational data. For example inetnum and aut-num objects hold Internet resource information. Also, route and domain objects hold details of routing agreements and reverse delegations.

Secondary objects provide supporting and administrative details for primary objects. For example, person objects hold contact information for someone related to an Internet resource. Or organisation objects hold details of resource holders.