A surprisingly large number do, at least in america. They're not guaranteed to be stable, i.e. you don't "own" the IP but in practice I've found that buying a relatively high tier internet plan tends to come with IPs that change less than once a year.
This is probably considerably less true in countries with a smaller ip to population ratio e.g. india.
This is probably considerably less true in countries with a smaller ip to population ratio e.g. india.