How to whitelist MaxCDN IP ranges with /20, /22, etc



I am trying to whitelist Maxcdn IPs that end with /20, /22, /27 etc. however the allowed ranges as per the help text are as follows:

IP address range: Cloudflare accepts the following CIDR notations: /16 and /24 for IPv4 addresses and /64, /48, and /32 for IPv6

Any suggestions?



I wanted to say that you might want to whitelist ASN but their IPs aren’t announced by their own AS.