If your phone number has changed and you need to recovery apple id, start by visiting the Apple ID account page. Click on "Forgot Apple ID or password" and follow the prompts to verify your identity. You can use your email address, security questions, or a trusted device to confirm your identity. If these methods are unavailable, contact Apple Support for further assistance. They may ask for proof of purchase or other identifying information. Once verified, you can update your phone number in the account settings to ensure smoother access in the future.