Is it possible to use subnet masks in the application server IP list?

Question

Classmates

Starting November 1, classmates require explicitly specifying for each application the addresses of the servers from which requests to the API will be made.
The question arose, is it possible to use subnet masks (eg 54.144.0.0/12) or wildcards (72.88.*.*) for these purposes, or is it necessary to explicitly specify the IP address of each specific server?

Answer 1

No, masks are not supported. You need to list IP addresses.
A wild card like 72.88.*.* is too wide for the game, don't you think?)