Apparatuses, methods, and systems are disclosed for indicating a network for a remote unit. One method (600) includes transmitting (602) a first message including a first registration request from a remote unit (102). The method (600) includes receiving (604) a second message including a first indication of a network to which the remote unit (102) belongs. The second message is received in response to transmitting (602) the first message. The method (600) includes transmitting (606) a third message including a second registration request from the remote unit (102). The second registration request includes a second indication of the network to which the remote unit (102) belongs, and the second indication is based on the first indication.