IPv4 Address Checker

Your public IPv4 address is 216.73.216.243 — your connection supports IPv4.

What is an IPv4 address?

IPv4 is the original Internet Protocol addressing scheme: four numbers from 0 to 255 separated by dots, such as 203.0.113.42. It is still what most of the internet runs on, even though the roughly 4.3 billion possible IPv4 addresses ran out years ago.

How this check works

If your browser connected to this page over IPv4, we read the address directly from the request. If you connected over IPv6, the page asks an IPv4-only endpoint (api.ipify.org) from your browser — if that request succeeds, your connection also has a working public IPv4 address; if it fails, your network is effectively IPv6-only.

Why might I not have an IPv4 address?

Some mobile carriers and modern ISPs run IPv6-only networks and translate to IPv4 with NAT64/CGNAT gateways. Others put many customers behind one shared IPv4 address (carrier-grade NAT), so the IPv4 you see here may be shared with other subscribers.

Related tools

Test the other half of your connection with the IPv6 test, read the full IPv4 vs IPv6 comparison, or go back to the main IP checker to see all your connection details.