How many accounts can verify per Phone Number?

I haven't noticed that my firsts accounts have been verified with the same phone number.
I was n00b.

Don't care if I lose some accounts, but there are 4 accounts with the same phone number.

I have 2 accounts with the same phone number. They've been up for a month and I've had no problems what so ever. I guess 4 is ok, the only problem you should be worried about is when one of your accounts gets the banhammer and all your other accounts are linked to one phone number. Stay safe, don't overdo it on the following/unfollowing etc. and you should be fine.

A lot of peoples are saying that you can use 4-5 account by using your own phone number. So, I guess, its true.. I will test, when I start my Instagram Journey.