[tobad357]

Completely unrelated but as HN works as an unofficial support channel. This page https://www.cloudflare.com/ips/ seems to be missing a range of IPs which are in the 172.66.x.x range, our site appears under it but can't see it on the page

[jgrahamc]

I see 172.64.0.0/13 on that page; that includes addresses from 172.64.0.0 to 172.71.255.255.

[tobad357]

My bad. Scanned the prefix without looking at the range. Thanks!

[netfortius]

??

$ curl -fSsL https://www.cloudflare.com/ips-v4

173.245.48.0/20 103.21.244.0/22 103.22.200.0/22 103.31.4.0/22 141.101.64.0/18 108.162.192.0/18 190.93.240.0/20 188.114.96.0/20 197.234.240.0/22 198.41.128.0/17 162.158.0.0/15 104.16.0.0/13 104.24.0.0/14 172.64.0.0/13 131.0.72.0/22

172.64.0.0/13 == 172.64.0.0 - 172.71.255.255

contains 172.66...

[dang]

We detached this subthread from https://news.ycombinator.com/item?id=32592487.

[sokoloff]

172.66.0.0/16 is inside of 172.64.0.0/13, which is listed.

[rsstack]

172.64.0.0/13 is listed there. It isn't 172.64.x.x. It is 172.(64-71).x.x (note that 13 instead of 16).