Meet Truecaller, a trusted and reliable global phone directory that can tell you the contact details of unknown phone numbers in a few clicks.
Truecaller also has apps for iPhone, Android, Blackberry, Windows phone and Symbian.
Online
1. Visit the Trucaller web page here.2. Enter the phone number of which you want to find the contact details.
3. It will ask you to sign in using Facebook, Twitter, Google or Yahoo. Sign in using any of this service. But I recommend using Facebook. If you watched the video above, you will know why Facebook.
4. Now, you will need to enter the Phone number again and click on the blue search icon.
Smartphones
1. The first thing you need to do is to install the app on your Smartphone.2. Here are the download links:
- Download Truecaller for Android
- Download Truecaller for iOS
- Download Truecaller for Windows Phone
- Download Truecaller for BlackBerry
- Download Truecaller for Symbian
4. Next, you can get the contact details of unknown phone number from the main screen.
The app runs in the background and kicks in every time you get a call.

