The Channel name and bio must be no more than 255 characters long Public channels are public to the internet, regardless of whether or not they are subscribed. A public channel is displayed in search results and has a short address (link). Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” Invite up to 200 users from your contacts to join your channel Telegram Channels requirements & features
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