A communication apparatus that performs wireless communication using a first communication system and a second communication system includes a determining unit that determines an operation mode selected from a first operation mode and a second operation mode, the first operation mode being an operation which is used in the second communication system and in which the communication apparatus communicates with a different communication apparatus in a wireless network created by the communication apparatus, the second operation mode being an operation which is used in the second communication system and in which the communication apparatus communicates with the different communication apparatus in a wireless network created by an external apparatus, and a storing unit that stores information, based on the selected operation mode, used to establish a connection with one of the wireless networks.