Can one SIM card be used for two mobile phones?

Techically speaking you can, but you have to constantly remove the Sim card from one phone and then inserting it into the other phone. You will make yourself very busy doing so. read more

Techically speaking you can, but you have to constantly remove the Sim card from one phone and then inserting it into the other phone. You will make yourself very busy doing so. It would be wiser to install the SIM card into the best phone you possess. read more

Most cell phones, however, only have one SIM card slot, meaning that only one SIM card can be installed at a time. Nevertheless, if a single SIM cell phone user has two SIM cards from either the same or different carriers, it is possible for her to use them interchangeably. read more

Specifically, if you want to have two simultaneous phones with the same number, your network will have to specifically have both SIM cards (IMSIs) associated to your number. When you ask for another SIM, they'll usually send you a new one with a new IMSI, and deactivate the previous one network-side. read more