5.138.28.0-5.138.31.255 5.138.28.0/22
5.138.32.0-5.138.47.255 5.138.32.0/20
5.138.48.0-5.138.51.255 5.138.48.0/22
5.138.52.0-5.138.52.255 5.138.52.0/24