What cellular companies use sim cards?

Does Verizon use sim cards?

No, Verizon currently runs on cdma technology. Sim cards are used for gsm and iden technology. The following carriers use gsm technology currently: Cingular, T-Mobile, Nextel, AT&T, Tracfone, Boost, Rogers, Cellular One, and Virgin mobile.

Can you switch sim cards in a phone?

Yes, if you want to change phones you can do this very easily. Simply take out your sim card from your current phone and insert it into your new phone. Now, when someone calls you the new phone will ring. There is no need to purchase a new sim card just because you are switching phones.

What is a Sim Card?

A SIM card is short for Subscriber Identity Module card. It is a tiny encoded circuit board that is fitted into GSM cell phones at the time of signing on as a subscriber. The sim card holds the details of the subscriber, security data, and memory to store personal numbers. A SIM card stores information which helps the network service provider to recognize the caller.

A SIM card is a removable memory card and can be put into any compatible GSM handset, permitting the user to keep the same number while changing handsets. It is a standard unique chip which is a must in every GSM cell phone.