When adding AirTags or compatible items, FindMy is showing a wrong phone number

What you’re running into is likely caused by a mismatch between your Apple Account’s iCloud login and the contact info that’s being pulled from iMessage or FaceTime settings—or even from another signed-in account on the same device.

When you're adding an AirTag or other Find My-compatible item, the system pulls both the iCloud account info (which includes the email) and possibly a phone number associated with iMessage/FaceTime or a previously cached Apple Account that's still logged into another Apple service on the device. That’s why you're seeing the right email, but a wrong (or old) phone number.

To correct the phone number being shown:

Check which Apple Account is active in Find My

• Open Settings > [Your Name] > Find My > Find My iPhone.
• Make sure it’s signed into the Apple Account you intend to use for Find My network tracking.

Verify phone number associated with Apple Account

• Go to Settings > [Your Name] > Name, Phone Numbers, Email.
• Under “Reachable At,” confirm that the correct phone number is listed.
• If the wrong number is listed here, you may be signed into iCloud using a different Apple Account that still has the old number.

Sign out of iMessage and FaceTime completely (if necessary)

• Go to Settings > Messages > Send & Receive and Settings > FaceTime.
• Sign out from both if they’re logged in with the wrong Apple Account or using the incorrect phone number.
• Then sign back in using the correct Apple Account that matches the one used for Find My.
• Restart your device after logging out and back in.

Double-check iCloud settings

• Navigate to Settings > [Your Name] > iCloud and ensure it’s the correct account (the one you want tied to Find My).