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What is a SIM (Subscriber Identification Module) card?

April 26, 2017card Identification module SIM subscriber

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What is a SIM (Subscriber Identification Module) card?

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The SIM card is what allows your cell phone to access the network. It contains your saved phone numbers, and is transferable if you switch phones. Simply switch the SIM card into the new phone and your phone number and other settings stay the same.