The hardware support is very likely already there.

That is an unusual luxury, especially mobile providers still using IPv4.

Mobile providers have been the first and most aggressive to migrate to IPv6. Probably helped along by the cost and difficulty of running CGNATs when your network clients are constantly moving around. At least in the UK all the mobile providers are IPv6, and I think a handful are IPv6 only.

I live in the USA and my ISP doesn't support ipv6