In Europe, the serial SIM number (SSN) is also sometimes accompanied by an international article number (IAN) or a European article number (EAN) required when registering online for the subscription of a prepaid card. SIM cards can also be used in satellite phones, smart watches, computers, or cameras.Ī SIM card contains a unique serial number (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and two passwords: a personal identification number (PIN) for ordinary use, and a personal unblocking key (PUK) for PIN unlocking. SIM cards are always used on GSM phones for CDMA phones, they are needed only for LTE-capable handsets. It is also possible to store contact information on many SIM cards. SIM Card And All You Need To Know ?Ī SIM card, also known as subscriber identity module or subscriber identification module (SIM), is an integrated circuit running a card operating system (COS) that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers). ![]() Is another trending topic on Google search engines which we will provide solutions and steps you can follow to unblock your sim card without puk code.
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