Whether you're interested in tracking the location of phone numbers, hunting down and getting rid of annoying telemarketers, or just making sure a particular number is not listed with other people, here's your app for everything.

This feature is also a reverse phone number lookup and tracing app, meaning you can simply enter a number and see what information is available about it.

Find out who owns and manages that phone number and how to contact them.

It's a free public user-powered database of phone numbers, harassing callers, and more. You can search by carrier, area, and other relevant information.