In Russia you can pay several roubles (which you can deposit using bitcoin) to a service providing phone numbers for registration. Such services are usually use

In Russia you can pay several roubles (which you can deposit using bitcoin) to a service providing phone numbers for registration. Such services are usually used by spammers (sorry, I mean marketers and SMM people) to create multiple accounts on social networks, but can be used to protect one's privacy too. Sadly, not all services are good. Many of them block SMS from banks, loan firms and payment systems and I don't want to support them.