Locked Account
I’m trying to sign into my Apple ID using my old IPhone 8 but I locked my account and the phone number linked to that account is no longer accessible . I have a new number and email .
[Personal Information Edited by Moderator]
See if anything here helps. If necessary, you can use account recovery as explained in the link at bottom of the article.
Verification code - how to get one and sign in with two-factor authentication.