Where is papa johns home office? You can contact Papa John's corporate office in Louisville, Kentucky, by telephone at 502-261-7272. The company can also be reached by mailing its physical address: Papa John's International Inc., 2002 Papa John's Blvd, Louisville, KY 40299-2367.What is papa johns phone number? Papa Johns Corporate Address. The address of Papa Johns Corporate is Post Office Box 99900, Louisville, Kentucky 40269-9990, United States.What is papa johns address? Papa John's. Papa John's is the third largest pizza company based in the United States. Its headquarters are in Louisville, Kentucky, U.S.