A non-transitory storage medium storing the communication management list generation program causing a computer to execute:
- generation processing of generating a communication management list constituted by communication management information including time information associated with a predetermined time, and communication information indicating communication processing which is started at the predetermined time and which does not use a same route simultaneously;
- determination processing of determining each piece of communication management information in an ascending order of time associated with the time information regarding whether or not communication processing information is addable to the communication information;
- and
- addition processing of adding the communication processing information to communication information of communication management information which is determined to be addable at a time of determination in the determination processing,
- wherein the communication processing information comprises shortest route information, and wherein data is transmitted over a shortest route selected based on the communication processing information.