I’m trying to unlock my Apple ID but I cannot remember the phone number used any idea how I can unlock it ??
Welcome to Apple Support Communities. We understand that you forgot the phone number that you used for two-factor authentication. We are happy to help.
Do you have another trusted device or trusted phone number? Please see the section titled “Trusted devices” and “Trusted phone numbers” here: Two-factor authentication for Apple ID - Apple Support
If you don’t have another trusted phone number or trusted device, please use the steps here to regain access to your Apple ID: How to use account recovery when you can’t reset your Apple ID password - Apple Support
Let us know if you have further questions.