3.123.45.0-3.123.45.255 3.123.45.0/24
3.123.46.0-3.123.47.255 3.123.46.0/23
3.123.48.0-3.123.63.255 3.123.48.0/20
3.123.64.0-3.123.127.255 3.123.64.0/18
3.123.128.0-3.123.128.255 3.123.128.0/24