Start with the least expensive but most difficult way to calculate information about a person by their phone number. When you replenish your account through your mobile phone and call the room, the Manager sees your personal data that you provide when filling out the agreement for the provision of communication services with the operator. And there the surname, name, patronymic name, registration and index. In General, all that you need. Knowing that the Manager can help, you can try a small trick: to extract information under any pretext. Well, for example, go to the salon to pay cellular communication, smiling apologetically to the Manager, replenishing the account and explain the situation. Your little cousin was lost, and on the mobile phone, which he had with him, ran out of money. You came to fill him the number to call and find out where he is. But the trouble is, you forgot your phone, where a recorded telephone brother, and in memory to remember does not work. Make an imploring look and ask for help, the operator can call you name, name, patronymic of the subscriber. If you think about it some more, you can get information about registration of the subscriber. But everything will depend on how professional you actor.
More expensive, but more comfortable way is to contact the professionals of detective business. Just give all the information possessed, aiming and waiting for the result. How it will be received, you care little for. This also has its positive side – don't have to lie, as in the case of the cellular interior. But the reliability of the information can demand higher, because you pay money and not small.
Contact databases that you will find in great abundance in the markets where they sell electronics (Mitino, Savelovskaya, etc.) have a Base both for individual operators and on city phones. You can buy consolidated database – it will cost of course more expensive, but also more opportunities. But remember that the accuracy of the information thus obtained, the claims to be present there and will have to carefully check.