157.7.32.0-157.7.63.255 157.7.32.0/19
157.7.64.0-157.7.127.255 157.7.64.0/18
157.7.128.0-157.7.159.255 157.7.128.0/19
157.7.160.0-157.7.175.255 157.7.160.0/20
157.7.176.0-157.7.183.255 157.7.176.0/21