>>15736587 (OP)>target's approximate location such as the city in which they are innot even that
however it's more or less an unique thing pretty easy to obtain and if you already got doxed partially and your IP was leaked somewhere, it can be very helpful when connecting the strings
secondarily if the target is an actual criminal like a real pedo or something you can submit that IP and got nothing else, you could contact the provider with evidence that the IP did this and that and get the target to court