It might have been confusing to see cell phone tracker and cell phone lookup around the internet, well, they are not the same thing.
Cell phone tracking is using GPS, cell towers or WiFi hotspots to determine a mobile phone location in real-time and track its movements. This usually means you need to install some cell phone tracking software or need your ISP's assistance.
While cell phone lookup is look up a cell phone number in a cell phone number directory and find its owner, registered address and city etc. If there is not such a record in the database, then you could find nothing.
You can track a cell phone with the owner's permission or if you are the owner, but you can reverse any cell phone number you have.
For more information about mobile phone tracking, please read other posts.
