NPA-NXX Geolocator

Annoyed with those pesky phone calls in the middle of the night? Caller-ID shows some random stranger but you don’t know where they’re calling from? NPA-NXX Geolocator to the rescue! This basically searches for NPA/NXX pairs through publically available data and maps it onto Google Maps for you.
What does this mean? Well, you won’t be able to pinpoint your stalker, but you have a clue which exchange routed the call. Now if they’re spoofing the number, then you’re just screwed anyways.
Via NPA