Verification code
This morning I woke up from a missed call from Apple automated, then a text about verification code . I believe someone is trying to get into my account.
iPhone X, 12
You might want to consider changing your password and making sure it is a strong one. You can also add 2 Factor Authentication to your account for more security. If the attempts continue, you might want to consider a name change. If you think your ID has been compromised, see the first link.