Every once in a while, some mysterious number is bound to appear on your mobile phone’s display screen which is not saved to your contacts. If by any chance you miss the call, or the text you received isn’t conclusive enough, you will keep wondering who the caller is. Besides, it takes all sort of people to make up the world and some people intentionally hide their identification from you as they might be calling to spam you or for any other unpleasant purpose. But for all the Windows Phone 7 users facing this situation, NumberGuru has flown into the Marketplace on his magic carpet!


The app comes with an attractive, yet simple interface and makes you want to use it even when you don’t need it very much. Whenever you want to look up a number’s particulars, just fire up NumberGuru, input the number using the dialer in the app and hit Go. You will see the results (name to which the number is registered and its location) pertaining to the entered number immediately. The ever-growing database of Number Guru covers almost the whole US (except for Verizon Wireless).


If the number you searched for was a spammer, then you can add a comment to your search result, which will alert future users to the fact that the number they entered belongs to a spammer. The app is targeted at US users only, but others can benefit from it by using the entries made in comments by previous users.
The two icons you’ll see at the bottom of the screen are History and Support. History stores all your NumberGuru searches to date along with the dates you searched for them.
A pretty useful app if you’re living in the US and own a WP7 device. NumberGuru is a free app, which makes all the features we just described sound even better.