Репост из: Telegram & Durov Tweets
If you create a username on your profile, it is public and searchable. By default, your phone number is hidden to everyone except your contacts (who would already have it) but you can restrict its visibility even further via Settings > Privacy and Security > Phone Number.
— Telegram Messenger (@telegram) December 6, 2019
#telegram
— Telegram Messenger (@telegram) December 6, 2019
#telegram