A subscriber identity module or subscriber identification module (SIM), widely known as a SIM card, is an integrated circuit 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). It is also possible to store contact information on many SIM cards. SIM cards are always used on GSM phones; for CDMA phones, they are only needed for newer LTE-capable handsets. SIM cards can also be used in satellite phones, smart watches, computers, or cameras.
The SIM circuit is part of the function of a universal integrated circuit card (UICC) physical smart card, which is usually made of PVC with embedded contacts and semiconductors. SIM cards are transferable between different mobile devices. The first UICC smart cards were the size of credit and bank cards; sizes were reduced several times over the years, usually keeping electrical contacts the same, so that a larger card could be cut down to a smaller size.
A SIM card contains its 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 code (PUC) for PIN unlocking. 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 on line for the subscription of a prepaid cards.

View More On Wikipedia.org
  1. B

    samsung 3010s insert sim saloction

    samsung 3010s insert sim saloction
  2. K

    Walton-c2 sim solution

    WALTON-C2 SIM SOLUTION
  3. D

    Unlock my alcatel spop 4030x sim me code

    Alcatel one touch s'pop 4030x. Imei:869229012003674 Provider id:4030x-2CM9MZ1-S40 Please can you help me?
  4. H

    samsung x200 sim broken, need help

    samsung x200 sim broken , how 2 solv ?
  5. U

    Superior sim Ultra+ new Review Post by Hafeez Ullah b y Pakistan

    Review By Hafeez Ullah Hi, All I am Hafeez Ullah FRom Noshera(Peeshawar) Pakistan I am Work With Name Gsm mardan, Today I have Great News For Evryone Who Have IPhone 4 With BB 04.12.05 and Stuck Locked Coz They UPdate TO new Ios 6.1.2 or 6.1.3 So Now No MOre Wait, Its Unlocking Sim Now Release...
  6. U

    How-to Unlock iPhone 4S Baseband 4.3.01with IOS 7.0.4 By Superior Sim Platinum 5 in 1 Guide

    [Tutorial] How-to Unlock iPhone 4S Baseband 4.3.01with IOS 7.0.4 By Superior Sim Platinum 5 in 1 Guide: Superior Sim Platinum , the new version of Superior sim With The Name Superior sim Platinum 5 in 1 now supports Baseband 4.3.01 iPhone 4S Unlock. Follow the tutorial provided below to unlock...
  7. U

    Superior Sim Platinum 5 in 1 (With Software Updater) (iPhone 5s/5c/5/4s & 4 Supported) Now Release

    The Best World No 1 Unlocking Solutions Provider For iPhones The Team Superior Now Announce Superior Sim Platinum 5 in 1 Its Now Best Sim which have passed ce ,Rohs and ISO 9001 Certified, Superior sim Platinum 5 in 1 100% Beats R sim 9 technology and also Support iPhone 4 BB 04.12.09,04.12.05...
  8. P

    Please Unlock Sim Me code

    Imei: 862601011244052 Provide ID: 991X-2BTBMK1-S40
  9. S

    Samsung Galaxy young S6310 sim unlock please!!!

    Samsung Galaxy young S6310 sim unlock please...imei:35626805496463/3
  10. C

    lg kp500 unregistered sim

    lg kp500 unregistered sim, any solution please
  11. J

    Samsung S5360 full sim ways solution jumper

    Samsung S5360 full sim ways solution jumper IF YOU LIKE MY POST JUST PRESSES THANKS
  12. J

    Samsung G600 restart with sim card

    Samsung G600 restart with sim card IF YOU LIKE MY POST JUST PRESSES THANKS
  13. S

    Nokia Asha 309 Insert Sim Jumper

  14. S

    c-3312 sim solution

    c-3312 sim solution
  15. J

    nokia 100 insart sim 10000% testad

    nokia 100 insart sim 10000% testad http://img13.imageshack.us/img13/6707/a5p9.jpg
  16. S

    nokia 105 insert sim

  17. P

    ChinaChina sim card registration failed

    samsung China sim card registration failed, how to sloved
  18. C

    maximus m20 insert sim

    maximus m20 insert sim plz help me
  19. S

    samsung 3303 sim lock

    samsung 3303 sim lock, please help
  20. S

    Nokia 110 sim 2 not work

    Nokia 110 sim 2 not work any idea sir g
Back
Top