All mobile networks require a SIM card or similar.
A SIM free phone is one that does not have a SIM card included with the phone. This type of phone may not be able to be used with all networks. Some networks require a SIM card.
You call your carrier and activate your sim card.
Yes the iphone 4 uses whats called a micro sim card it is smaller then the regular sim card out there. At www. phonetraderonline.com they can custom cut your existing sim card or provide you with a micro sim for your carrier.
As AT&T is a GSM service provider all of their devices require a SIM card to operate on their network
A sim free mobile is a mobile phone that can be bought which is unlocked to any network. i.e: can be used on any network, and not specifically one eg; o2. ~ AshJordan
Any cell phone that is unlocked requires a SIM card to work. If you own a Sidekick cell phone that is unlocked you are able to use a carrier other than T-Mobile. For this reason, it will require a SIM card to work.
The plural form of SIM card is SIM cards.
There are many mobile phones that do not require a SIM card, it depends on the service provider. Any phones from Sprint and Verizon do not use SIM cards.
sim card
sim card
A SIM card adaptor will allow you to use a micro SIM in a standard SIM slot.