If your phone has been lost or stolen, here are some steps you can take:

1. Try calling your phone to see if someone answers.
2. Use a tracking app or service to locate your phone.
3. Contact your mobile service provider to report the loss and suspend your service.
4. Change your passwords for any accounts linked to your phone.
5. Consider remotely wiping your phone to protect your personal infor tion.

If you are unable to locate your phone, it y be best to contact the authorities and file a report.