It is hard to imagine the vast scope of application for SMS receiving and activation via temporary numbers! The scope of use ranges from routine tasks –of registrationVK and OK, to global ones, business projects associated with huge quantities of ads, for example on AVITO, AUTO.RU, PROFI.RU, Youla, and bigPR-campaigns in different social networks. This operation is suitable both for a common user who needs a single-use number for 10 minutes, and for a serious business unit leader who will eventually require long-term possession of the number. We can already now name several social network where registration without confirmation of the mobile number is impossible: VKontakte, Odnoklassniki, Facebook. In the future, the number of such resources will only grow. It may happen that soon the resources where registration is impossible without mobile confirmation will include the following social networks: Fotostrana, Twitter, DrugVokrug, Telegram, WhatsApp, Viber, WeChat;and also other resources: Gmail, Mail.ru, SEOsprint, Yandex, OLX, Youla, OpenI, Steam, Uber, Yahoo, Microsoft.