I have reformatted the IP list from MaxCDN to suit Wordfence, according to the information I have. If anyone knows this is incorrect, please let me (and others) know. Otherwise, just copy this list and paste it into the Wordfence|Options|Other Options “Whitelisted IP addresses that bypass all rules:” box.
108.161.176.[0-20]
94.46.144.[0-20]
146.88.128.[0-20]
198.232.124.[0-22]
23.111.8.[0-22]
217.22.28.[0-22]
64.125.76.[64-27]
64.125.76.[96-27]
64.125.78.[96-27]
64.125.78.[192-27]
64.125.78.[224-27]
64.125.102.[32-27]
64.125.102.[64-27]
64.125.102.[96-27]
94.31.27.[64-27]
94.31.33.[128-27]
94.31.33.[160-27]
94.31.33.[192-27]
94.31.56.[160-27]
177.54.148.[0-24]
185.18.207.[64-26]
50.31.249.[224-27]
50.31.251.[32-28]
119.81.42.[192-27]
119.81.104.[96-28]
119.81.67.[8-29]
119.81.0.[104-30]
119.81.1.[144-30]
27.50.77.[226-32]
27.50.79.[130-32]
119.81.131.[130-32]
119.81.131.[131-32]
216.12.211.[59-32]
216.12.211.[60-32]
37.58.110.[67-32]
37.58.110.[68-32]
158.85.206.[228-32]
158.85.206.[231-32]
174.36.204.[195-32]
174.36.204.[196-32]
151.139.0.[0-19]
94.46.144.[0-21]
103.66.28.[0-22]
103.228.104.[0-22]