I. UID – Unique Digital Identifier of Users
- On Telegram, every user account, group, channel, and bot has a unique UID.
- The UID is a long string of numbers, like “12345678901234567”.
- The UID is generated automatically when an account is created and cannot be changed by users.
- If an account is deleted and re-registered, the UID will be regenerated into a completely new digital identifier.
- The UID is not displayed by default in Telegram’s official client and requires third-party apps to view it.
- Bots or third-party clients can be used to view one’s own UID for certain special purposes.
II. Username – English Identifier of Users
- Telegram allows users to set a username of 1-32 characters, unique across the platform, case-sensitive.
- The username can be left blank. But setting one makes it easier for other users to find you via search.
- Bots, groups, etc. can also set usernames that can be found via global search.
III. Registration Time
- By default, Telegram does not show users the exact time their account was registered.
- Bots or third-party apps can query the approximate time an account was registered, but it may not be very accurate.
- The registration time cannot be customized but can serve as a reference to get a general idea of when an account was registered.
