A system for performing skip tracing provides a first user interface including an area for presenting at least one telephone number associated with account information of a customer retrieved from a mainframe computer system, a documentation area for inputting skip tracing results, a user interface control for indicating that a telephone number presented in the area is bad, wherein selection of the user interface control causes the documentation area to be populated with data indicating that the telephone number is bad, a second user interface control for indicating that a second telephone number presented in the area is good, wherein selection of the second user interface control causes the documentation area to be populated with data indicating that the second telephone number is good, and a third user interface control for causing data populating the documentation area to be recorded in a skip tracing data structure of the mainframe computer system and for causing display of a fourth user interface control, the fourth user interface control for causing the second telephone number to be recorded in a skip queue of the mainframe computer system.