157.7.36.0-157.7.39.255 157.7.36.0/22
157.7.40.0-157.7.47.255 157.7.40.0/21
157.7.48.0-157.7.63.255 157.7.48.0/20
157.7.64.0-157.7.127.255 157.7.64.0/18
157.7.128.0-157.7.255.255 157.7.128.0/17