I believe that there are only two solution to the problem of finding valid mobile numbers: police and cyberpiracy. With the police option we have experienced for more than 12 years ago when to buy a mobile device, we had to obtain special permission in'nadzora. It is long, inconvenient, costly and does not solve the problem of corruption. Though it gives law enforcement direct access to the array of data on cellular subscribers and used their devices.
Cyberpiracy option: the state creates objective conditions for that time I tied all my accounts, cards, phones and so on. to our specific personality. Otherwise, people "drop out" of society: can not get a job, get a loan, purchase, etc. Similar variation was described in the dystopia of 2014 D. Eggers "Sphere". In my opinion, we are moving towards that way, but very slowly. Already, talks on the limitation of cash transactions, identification of subscribers of cellular operators, the proof of identity at the state portals, e-government development in General, control over email, social networks and messengers. These are all the elements of the system that can be built in the future.
At the current time, law enforcement agencies are unable to fully carry out search operations associated with the control phones. Their conduct is very tightly controlled by the Prosecutor's office and courts, which issue the corresponding resolution. No operative can avoid the need for court approval, and for this he needs to prove to the judge the need of the event.
WHAT CAN I DO NOW? To collect published data on the owners of mobile numbers from open sources. This is what we implement on the project Telpos. In the interests of business security, we look for which social networks, ads, resume, company, advertising, banks and phone book identificeret a particular room. If the sources clearly indicate a specific person - it is considered to be identified. The search and data collection allow us to identify about 70% of the inspected rooms. This is a quick, legal way and effective.
Source: http://tv.rbc.ru/archive/tokarev_delo/5acdec729a79472e4db2f7e9