My Dutch ISP gives me a static IPv4 address (besides an IPv6 netblock) and allows me to purchase additional IPv4 addresses. They also offer various levels of port filtering, from no filtering to filtering port 53, etc.

(Combined with fiber, it's ideal for a small home server.)

Comcast in the US doesn't give residential accounts a static IP, nor do they give you the option to purchase one. You have to sign up for a business account with a 2 year contract term and a pretty draconian cancellation policy (basically the entire rest of the term is due when you cancel).