A call routing device in a communication network is re-entrant to permit a set of call routing rules to be applied more than once. A routing table in the routing device has entries to indicate that an incoming call should be rerouted to the routing device to permit additional call routing rule(s) to be applied to the incoming call. A routing table is provided with entries to indicate when an incoming call should be rerouted to the routing device and how call attributes should be created/modified to achieve call routing in one or more iterations of call routing processing using the routing table. The re-entrant routing device and routing table permits a wide variety of call attributes to be used to direct call routing processing using a routing table that can have a reduced number of entries. The re-entrant routing device and routing table permits a flexible configuration for call routing in communication networks while conserving routing device resources.