yea i have gotten several phones from att and used the same sim card for all of them, and kept the same phone number.
Not all cell phones are compatible with SIM cards. Some only work with a contract, and you need to unlock the phone before you can use a SIM card.
The LG LS855 is a Sprint compatible CDMA Phone that does not support SIM Cards
You must have a SIM card for the carrier you want to use and the phone must be compatible with that carrier.
Yes, switching SIM cards in a cell phone can work if the new SIM card is compatible with the phone and the network. Make sure the new SIM card is activated and has a data plan if needed, and ensure the phone is unlocked or compatible with the carrier you want to use.
Yes, 4G and 3G SIM cards are the same physical size, as they both adhere to the same SIM card standards (such as mini-SIM, micro-SIM, or nano-SIM). The key difference lies in their technology and capabilities, not their size. Both types of SIM cards can be used in compatible devices regardless of the network generation.
yes they do all have sim cards also on a different note the t-mobile phones accepts the cingular sim cards when unlocked and vice versa
No you cannot. The Verizon SIM cards are only designed to work on international networks. Nextel also does not use a GSM network, they use iDEN and GSM SIM cards are not compatible with it.
No they will not work with AT&T. AT&T uses a GSM network that requires SIM cards and Sprint uses CDMA that does not require SIM cards. The two networks are not even remotely compatible.
SIM cards have generic sizes and basic functions. The difference lie in the frequencies that they operate on.
Verizon doesn't use SIM cards, so the Verizon iPhones presumably don't. All AT&T iPhones have a SIM card, though.
No, only Rzrs that worked on GSM networks have sim cards. Rzrs that worked on CDMA networks did not have a sim card slot.
Verizon does not use sim cards in their phones (except the iPhone). So no you would not be able to use an AT&T Sim card in a new Verizon phone. sorry.