iCloud Account
I have a new phone and I cannot log into my old iCloud account because I don’t have the same phone number and I really need my old iCloud account back.
Question marked as
Top-ranking reply
You may need account recovery - Two-factor authentication for Apple ID - Apple Support.
"If I can't sign in, how do I regain access to my account?
If you can’t sign in, access a trusted device, reset your password, or receive verification codes, you can request account recovery to regain access to your account."