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Can I self-host on my ISP?

Pick your internet provider and what you want to run at home. You get a yes, maybe or no, worked out only from the facts we've sourced for 41 US home ISPs (CGNAT, opt-out, static IP, IPv6, ports 25/80/443 and the terms on servers), with every source linked. If we haven't verified something, it says unknown.

How the answer is worked out

• Yes: the ISP gives home customers a public IPv4 by default, and nothing we've sourced blocks the ports or bans servers for this use.
• Maybe: it can work with a step or a catch: CGNAT only on some plans or areas, a free or paid opt-out, a static IP add-on, IPv6 only, a blocked standard port, or terms that restrict servers.
• A mail server is at most a maybe unless the ISP's own pages say inbound port 25 isn't blocked.
• No: CGNAT by default with no opt-out, static IP or IPv6 we know of, or (for mail) the ISP blocks inbound port 25.
• Unknown: we haven't verified whether the ISP uses CGNAT, so we don't guess. Run the checker on your line and tell us what you find.
• Terms on servers lower the answer for things others connect to (website, mail, game, media and file servers), not for reaching your own devices. Port data only exists for ports 25, 80 and 443.

Every ISP at a glance

64 yes, 141 maybe, 22 no and 101 unknown across 328 ISP and use pairs. Click an ISP for its sources.

See also: ISP finder · Self-hosting behind CGNAT · ISPs without CGNAT · Data: /data/selfhost.json