What’s my Internet IP (WAN) Address?
Well, it’s pretty easy to find out what your system’s internal IP address, just check the network settings on your operating system. But what if you want to know what the IP address that is sent to other hosts on the public Internet? If you are behind a NAT, firewall, router or proxy server the address that other hosts will see is the address of the device that’s connecting you to the Internet, not the one your operating system shows you, which is your LAN address. The only situation where this is not the case is if you’re crazy enough to have your cable modem or DSL modem connected directly into your PC. If you are, you have about 5 more minutes to read this blog before your computer is infected and zombied.
Well, the easiest way to find out your WAN address is to visit a site that will tell you what address it sees you coming from. I have created such a script, you can click on the link below to check your address if you don’t know it.
The response is incredibly simple for a reason: any software that needs to know the WAN address of the network it’s running on can call this simple URL and get a simple, easy-to-parse response.



