Is Telegram officially banned in Tanzania?

I have been using Telegram for the past decade or so, and to this day I wonder why it hasnt been a standard of communication among my peers like WhatsApp has. Recently I noticed that Telegram having connection issues, especially when I am in Tanzania. Now that I have been in the country for some time, it hasnt been working for over a month now. No one I ask seems to know what's happening with the app but I suspect there's a ban so I need someone to confirm if my suspicions are correct.