> At some point isn't contacting this service really just contacting a handful of IP addresses? "Handful". S3 has 283 subnets allocated to it, biggest one bein

> At some point isn't contacting this service really just contacting a handful of IP addresses? "Handful". S3 has 283 subnets allocated to it, biggest one being a /15, so there are some few hunderd thousand IP addresses reserved for S3. While impossible to say how many of them are actively in use, I imagine large fraction of them. The AWS IP ranges are documented in https://ip-ranges.amazonaws.com/ip-ranges.json https://ip-ranges.amazonaws.com/ip-ranges.json