Each device connected tou your home network has an IP address, often assigned by the router.
Does it look like this 192.168.x.y ?
If so, it is the local address, assigned by the router and each device on your network has a similar (but different) address. Usually the first three sections (192.168.x) are the same and the last numnber (y) is different.
That is completely unrelated to your public IP address.
You can find that by looking at
https://www.whatismyip.com/