Router help
How to find your router WAN IP
Look for the WAN, internet, or external IPv4 address in your router or ISP gateway status page. That is the value the checker needs.
Where to look
Sign in to your router or gateway and open the page usually labeled Status, Internet, WAN, or Network Overview. You want the address assigned to the internet-facing side of the device, not the local LAN address.
What values matter
If you see a private IPv4 address such as 192.168.x.x, 10.x.x.x, or 172.16.x.x to 172.31.x.x, that is a strong sign of another NAT layer. A 100.64.x.x to 100.127.x.x address is also important because it is often associated with carrier-grade NAT.
If your router only shows IPv6, the site checker can still be informative, but it will not conclusively classify the connection.
Brand-specific help
Router guides
ASUS
How to find the WAN IP on ASUS routers
A quick guide to locating the WAN or internet IP address on ASUS router interfaces before you compare it with your public IP.
Read moreTP-Link
How to find the WAN IP on TP-Link routers
Find the internet-facing address on TP-Link routers so you can compare it with your public IP.
Read moreNETGEAR
How to find the WAN IP on NETGEAR routers
Use this guide to locate the WAN IP on NETGEAR routers and compare it with the public IP detected by your browser.
Read moreeero
How to find the WAN IP on eero systems
A simple guide to locating the WAN or internet IP in eero so you can compare it against your public IP.
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