https://ip-ranges.amazonaws.com/ip-ranges.json
jsonで返ってくるのでjq使うと良い。
ex: cloudfront のip prefixだけ抜く
curl -s https://ip-ranges.amazonaws.com/ip-ranges.json | jq -r '.prefixes[] | select(.service == "CLOUDFRONT") | .ip_prefix'
13.32.0.0/15
13.54.63.128/26
34.195.252.0/24
35.162.63.192/26
52.15.127.128/26
52.46.0.0/18
52.52.191.128/26
52.56.127.0/25
52.57.254.0/24
52.66.194.128/26
52.78.247.128/26
52.84.0.0/15
52.199.127.192/26
52.212.248.0/26
52.220.191.0/26
52.222.128.0/17
54.182.0.0/16
54.192.0.0/16
54.230.0.0/16
54.233.255.128/26
54.239.128.0/18
54.239.192.0/19
54.240.128.0/18
204.246.164.0/22
204.246.168.0/22
204.246.174.0/23
204.246.176.0/20
205.251.192.0/19
205.251.249.0/24
205.251.250.0/23
205.251.252.0/23
205.251.254.0/24
216.137.32.0/19
