what is imei of sim cards?

Question

what is imei of sim cards

Answer 1

SIM cards do not have IMEI, only Phone do.

The International Mobile Equipment Identity (IMEI) is a number unique to every GSM and UMTS mobile phone. It is usually found printed on or underneath the phone's battery and can also be found by dialling the sequence *#06# into the phone.

The IMEI number is used by the GSM network to identify valid devices and therefore can be used to stop a stolen phone from accessing the network. For example, if a mobile phone is stolen, the owner can call his or her network provider and instruct them to "bar" the phone using its IMEI number. This renders the phone useless, regardless of whether the phone's SIM is changed.

Unlike the ESN of CDMA and other wireless networks, the IMEI is only used to identify the device, and has no permanent or semi-permanent relation to the subscriber. Instead, the subscriber is identified by transmission of an IMSI number, which is stored on a SIM card which can (in theory) be transferred to any handset. However, many network and security features are enabled by knowing the current device being used by a subscriber.

Answer 2

SIM Cards have IMSIs, not IMEIs. IMSI stands for International Mobile Subscriber Identity. IMEI stands for International Mobile Equipment Identity.

In North America, GSM providers (Cingular, T-Mobile,etc.) track your location based on your IMSI, not your IMEI.

In Europe and the rest of the world, GSM providers track your location based on both your IMEI and your IMSI. European providers can block access to IMEIs if they find the device is stolen, regardless of whether the account you use is active or not.

Answer 3

The IEMI # is for the phone, it has nothing to do with the sim card..