WTB phone number. Have account details.

Are you trying to find someone this way? Why not ask this person's phone number directly if you have his Instagram account? It seems that you have something terrible in mind, and I hope no one will help you implement it. And it is precisely because of such situations that I use a temp phone number to register on social networks. I would not like to be attacked by spammers after registration or, even worse, by real people who did not like me in some way. Well, or they liked me too much, and I didn't like them, lol.