Mobile providers have IPv6 only networks and use NAT64 with CGNAT and DNS64 to permit access to the legacy internet. No incoming IPv4 ports. CGNAT can serve w

Mobile providers have IPv6 only networks and use NAT64 with CGNAT and DNS64 to permit access to the legacy internet. No incoming IPv4 ports. CGNAT can serve way more than 32 customers per IP, and they are pooled.