Kurt "CyberGuy" Knutsson explains how to look up a phone number for free after seeing an unknown caller dialing you, and shares the specific services you can use.

To find the best free and mostly accurate details on people, the best source may still be the phone book.

If you want to find out find to who called you and who is a number registered to, use any of the working methods mentioned here.

If you need to find your own phone number on Android, this walkthrough can help you locate that with just a few easy taps.

How to Use a Phone Number to Search for a Business. When searching for information about a business, you will often need additional information other than the company's name.