A.25 B.26 C.27 D.28
A.255.255.255.0 B.255.255.252.0 C.255.255.254.0 D.255.255.248.0
A.220.117.132.0/23 B.220.117.128.0/22 C.220.117.130.0/22 D.220.117.128.0/21