I have been running two Instagram accounts from my phone without proxies. I haven't used any bots, but I have been pretty "active", posting maybe 7-8 pictures a day and following about 300-400 users daily. One of the accounts got shadowbanned (posts don't appear in hashtags), possibly because I unfollowed too many people at once, but it still gets a decent amount of followers from followbacks. I am now thinking of starting a legit, white hat account for my affiliate business, but I am rather paranoid about my "track record" on IG. I don't want to risk my account getting banned somewhere along the way because my IP has previously been used in a suspicious manner. On the other hand I don't want to waste money on a proxy if that is unnecessary (especially since I would only be using that proxy for one account) plus I would prefer to use my IG on my phone and not bluestacks. In addition to these two accounts I have one personal account on the same IP and I may have created one more account in the past, so that would bring my account count to four on one IP. These accounts are inactive however, in case that matters.