Thanks, that makes a lot more sense. Could this be a temporary problem because of the new 5G (5G NSA) network development that might be fixed in the future? Or is this how simply 4G/5G networks work, with additional NAT on ISP side?
I've seen this for many, many years... Even 3G networks..
CGNAT unless you pay the provider extra money per month for a public IP.. Even then, they have multiple 'options'.. Static or dynamic IP.. Your own public IP with incoming connections blocked is something I've seen to for example, even more money for incoming connections..
This is only offered by the 'bigger' players though, the smaller networks have no idea what you are talking about and that what you want just doesn't exist on 3G/4G/LTE networks.. To be fair to them though, I've been told this by reps from companies that do offer the feature too.
Here, the first time, Rogers literally transferred me 23 times to get a public IP added to my account, eventually everyone I talked to knew it was possible, but nobody knew how to add it to an account. Bell was less calls, but nobody knew the APN to use after it was added..