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Help Center

My phone was lost / stolen. How can I block my number?

1. If your phone was stolen, here’s what to do:

Log in to your Tello online account from another device: Go to My SIM and select Block number (scroll down the page). From the My SIM section, order a new eSIM or physical SIM. Set it up on your new device using the QR code available in your account.

You’ll keep your number and your service will continue smoothly. Change your Tello account password to prevent unauthorized access.

Important:
  • You can reinstall and log in to the My Tello app on your new device. If your Tello account is linked to your email or other accounts, change those passwords as well.
  • Add an extra layer of protection by enabling Two-Factor Authentication from your account settings.
  • Check the Activity section of your account for any suspicious activity.
2. If your phone was lost or misplaced (not stolen):

Log in to your Tello online account from another device: [link] Go to My SIM and tap Block number, then follow the steps above.

Found your phone?

If you recover your phone and you did not order a new eSIM or SIM, please contact our Support Team so we can unblock your number.

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