UsernameSettings.ChangeDescription

People will be able to find you by this username and contact you without needing your phone number.

You can choouse a–z, 0–9 username on Telegram. If you do, other people will be able to find you by this username and contact you without knowing your phone number.


You can use a-z, 0-9 and
underscores.
Minimum length is 5 characters.
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