5Telegram Channel avatar size/dimensions The Channel name and bio must be no more than 255 characters long 2How to set up a Telegram channel? (A step-by-step tutorial) 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. Concise
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