Which device provides public IPv4 on mobile network?

Question

Computer networks

Among IPv4 addresses, there are 2 types of IP: public and private IP addresses.

1. The public IP address is used to connect devices to the Internet (WAN).
   
2. Private IP is used to connect devices to each other on a local network. This is an internal IP.
   

But what about other devices that can access the Internet without a router? Mobile network, for example.

It turns out that there is a certain "big" router, owned by the provider, which supports NAT and provides our devices with public IPs?

Answer 1

It turns out like this.

Answer 2

For mobile phones, the router is on a cell tower. Works on the principle of wifi - connected, he then gave out IP, then NAT and drove