52.15.0.0-52.15.127.255 52.15.0.0/17
52.15.128.0-52.15.159.255 52.15.128.0/19
52.15.160.0-52.15.175.255 52.15.160.0/20
52.15.176.0-52.15.183.255 52.15.176.0/21
52.14.0.0-52.14.255.255 52.14.0.0/16