Is is true that a normal approach will be a dead end leading to the ISP because they are assigned block of IP addresses and you have no way of knowing who gets each address.

But if you trace the connection, trying to get a response from all hops, you might get lucky because some of the active devices, namely routers and gateways, along the way are sometimes named with geographically clear names.

But even so, that will just diminish the radius of the search area. Theoretically, only your ISP should know exactly where you are.