I have been in crypto since late 2017, I think, and went active for around a year or so. I remember being on telegram a lot and as I come back and install telegram (i did not change my phone number) the communities I joined are gone, well my telegram's empty. I'm trying to recall where I found those communities checked twitter and been reading the forum since the other day but I can't find those community. Any idea to what I'm referring to? Any suggestions on where to find these community? Any kind of input are greatly appreciated!
You can find every project to have a community. You can see it on their websites for that project and they'll give you the link for that community in Telegram.
But if you're speaking for a telegram group in particular, we cannot guess what were those communities that you have joined before. Just move on and join new communities.