What does the T-Mobile SIM card do?

The SIM card is a tiny chip that’s inserted into your phone. It’s tied to your phone number and identifies you, the subscriber, to the T-Mobile network . It can also store data like phone numbers and contact info. The T-Mobile SIM card contains three different SIM sizes: standard, micro, and nano.

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Can you get just a SIM card T-Mobile?

SIM Card – Bring Your Own Device to T-Mobile. Connect to the T-Mobile network when you Bring Your Own Device with this zero cost SIM card and start enjoying the benefits of our unlimited plans. The 3-in-1 SIM Starter Kit includes a Nano SIM card with Micro and Standard SIM adapters . Want to keep your phone number?

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