Nataliehovsepin wrote:
I want to change my number
Call your telephone company.
Or maybe you mean your Apple account number? You really don't provide much information about this request.
To edit your list of trusted items go to the section: About trusted phone numbers and trusted devices in the document Two-factor authentication for Apple ID - Apple Support
To see, add, or change your trusted phone numbers:
- On your iPhone, iPad, or iPod touch: Go to Settings > your name > Password & Security. Next to Trusted Phone Number, tap Edit.
- On a Mac: Choose Apple menu > System Settings (or System Preferences), then click your name (or Apple ID). Click Password & Security, then add or remove a trusted phone number.
- In a web browser: Go to the Account Security section of https://appleid.apple.com/