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???
02/06/06 23:27
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#109350 - locked
Responding to: ???'s previous message
certain information on the SIM will be available "in the clear". Phone Book (ADN) is one of them, as is MSISDN (which may or may not be filled). Also, IMSI and ICCID are also typically available.

Most of the rest of the files on the card may or may not be accessible, depending upon the 'agreement' between the SIM manufacturer and the carrier.

However, some files will be inaccessible for reading or writing, particularly those that are used for authentication of the SIM to the network and the user.

3gpp is one source of info, as is etsi.org. I found that these specifications read very well once you understand what they are saying, but using them to get to that point is not at all fun.

As far as locking goes,
All GSM companies sale SIM-cards locked.
and
"Locking" usually refers to locking the SIM to a particular network

the SIM is not locked in any way. The handsets are subsidy locked so that they can only use the SIM's from their own network.

List of 23 messages in thread
TopicAuthorDate
mobile phone sim card            01/01/70 00:00      
   Which type of phone are you talking abt            01/01/70 00:00      
      Phones            01/01/70 00:00      
      which phone            01/01/70 00:00      
   SIM spec            01/01/70 00:00      
   SIM spec            01/01/70 00:00      
   SIM datasheet            01/01/70 00:00      
      Not true            01/01/70 00:00      
         Re: Not true            01/01/70 00:00      
            ETSI TS 100 977            01/01/70 00:00      
               See also            01/01/70 00:00      
            OP lost interest?            01/01/70 00:00      
      Security            01/01/70 00:00      
   Suggestions            01/01/70 00:00      
      Locking            01/01/70 00:00      
         locked            01/01/70 00:00      
   tutorial... in czech...            01/01/70 00:00      
      ETSI            01/01/70 00:00      
         i only need to read the phone book area            01/01/70 00:00      
            In English            01/01/70 00:00      
               tutorial?            01/01/70 00:00      
                  Tutorial            01/01/70 00:00      
            czech/english etc.            01/01/70 00:00      

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