In the US, usually not - but the US is comparatively spoiled for IPv4 blocks. It's pretty common in a lot of places for ISP customers to share public-facing IPs

In the US, usually not - but the US is comparatively spoiled for IPv4 blocks. It's pretty common in a lot of places for ISP customers to share public-facing IPs. This causes all sorts of issues with people being unfairly spam blacklisted, etc. https://en.wikipedia.org/wiki/Carrier-grade_NAT https://en.wikipedia.org/wiki/Carrier-grade_NAT