5Telegram Channel avatar size/dimensions To delete a channel with over 1,000 subscribers, you need to contact user support How to Create a Private or Public Channel on Telegram? In 2018, Telegram’s audience reached 200 million people, with 500,000 new users joining the messenger every day. It was launched for iOS on 14 August 2013 and Android on 20 October 2013. Informative
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