How Do I Activate My T Mobile Sim Card Online. It either begins with SBS or is a 13 or 14-digit number starting with 1- eg. How do I activate my replacement sim online.

If you do not have Wi-Fi access you can call Customer CARE at 1-888-8metro8 to activate. This can take up to 90 seconds. Even if you bought the device from one of our trusted partners our system just needs to verify.
Your phones serial number sometimes referred to as IMEI.
To get step-by-step instructions choose your device and click Settings Tech Specs. As per GDPR you can delete your payment card details at any time you choose either through Customer Services or via your own online MyAccount 5. Enter the required information. If after inserting the new SIM card you cannot make a call or browse the Web youll need to activate your new phone or SIM card online.

