Android: Settings -> About (just checked mine, 10...*), check your IP. We have 3 providers in our country, all 3 are using ipv4 "lan" for phone connectivity, be

Android: Settings -> About (just checked mine, 10...*), check your IP. We have 3 providers in our country, all 3 are using ipv4 "lan" for phone connectivity, behind NAT and I am observing this situation around most of EU (Germany, Austria, Portugal, Italy, Spain, France, various providers).