Examples disclosed herein provide systems, methods, and software for rolling over a data communication from one communication network to another. In one example, a method of operating a communication network includes receiving a secure authorization request from a wireless device and authorizing the wireless device based on a security key. The method further includes determining an identifier for a previous communication network, identifying a previous security key from the previous communication network, and integrating the previous security key with the security key to facilitate communication for the wireless device.