What Is My IP
See your public IPv4 and IPv6 address instantly, with a plain-English explanation of what an IP actually reveals about you.
This page asks ipify.org the single question "what is my address" and shows the answer. Nothing else is sent, stored or logged here.
What your IP address reveals
Your public IP is the return address your home router or phone puts on every request that leaves your network, so replies know where to come back to. Anyone you connect to can see it. From it they can look up a rough location - typically your city or region, sometimes the wrong one entirely - and the name of your internet provider. What it does not reveal is your identity, your name or your exact street address. Only your provider can tie an IP back to a specific account, and only with a legal request.
IPv4 vs IPv6
IPv4 addresses look like 203.0.113.7 - four numbers, each 0 to 255. There are only about 4.3 billion of them, and the world ran out years ago, which is why IPv6 exists. IPv6 addresses are much longer, like 2001:db8::1, giving a practically unlimited supply. Many connections now have both at once: some sites you reach over IPv4, others over IPv6. If the box above shows only IPv4, your network simply has not been given an IPv6 address yet - that is normal and nothing is wrong.
Why it changes, and what a VPN does
Most home connections use a dynamic IP: your provider leases you one via DHCP and can swap it for another later, often after a router reboot. On mobile data, carriers frequently use CGNAT (carrier-grade NAT), where thousands of customers share a single public IPv4 - which is why your phone shows a different address from your home broadband. A VPN changes your visible IP on purpose by routing your traffic through one of its servers, so sites see the VPN's address and location instead of yours. To inspect the raw details a site can read from your browser, try the user agent checker, and to resolve a domain to its IPs use the DNS lookup tool.