A wireless communication network charges a user for a wireless network slice over a Network Exposure Function (NEF). A network user-plane transfers user data over the wireless network slice. In response, the network user-plane generates session data that characterizes the user data transfer over the wireless network slice. The network user-plane transfers the session data to the NEF. The NEF receives the session data and generates a service charge for the wireless network slice based on the session data. The NEF transfers the service charge for the wireless network slice and at least a portion of the session data to a distributed ledger associated with the user.