The main place to search people by phone in online social networks. So, Odnoklassniki and Vkontakte are asked to confirm your account through your mobile. Though these rooms are not free, but such information still POPs up. Perhaps you will find an account of a man on his phone if he stated it on his page. For this you need only to register in the relevant social networks and enter the phone in the search bar.
If you are unable to find someone number online in the popular social networks, continue to work with the search engines. Since different search engines index pages differently, do not despair if you do not find the subscriber through one of them. Try to contact Yandex, Google, Rambler, Mail search.ru. Enter the phone in ten digit format without spaces, using dashes, using 8 or +7 (for Russia), through the spaces between groups of numbers, so how can a person leave your number in the ad on the forum, in the comments, which require a website or based on their convenience.
On the Internet you can also download the database of telephone numbers of people and punch the name with address is there. However, such a database is not always correct. This is due to the rapid obsolescence of information.
At your own risk you can try to turn the pages of specialized sites that provide services of search person by number. Theoretically such information could be available to hackers for those cooperating with law enforcement authorities or operators. Practically in most cases, such search queries, and paid by SMS, or does not receive an answer, or sent inaccurate information. If you do decide to find a person by phone number online through such sites before you part with your money, try to find reviews on the relevant resource.