Why Am I Receiving Instagram Login Codes I Didn’t Request?

It may simply be that another person entered your number while setting up two-factor authentication or trying to recover their account. If the codes are going to your phone and you don’t share them, they shouldn’t be able to complete the login. The messages may stop once they realize they entered the wrong number.

Since the texts are coming from Instagram’s genuine service number, blocking a random sender probably won’t help. Don’t use or share any of the codes, and check Instagram’s login activity and account-security settings for unfamiliar devices. If the messages continue, report the issue through Instagram’s built-in help or support options.