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Editorial Team
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Asked: 2026-05-23T08:01:50+00:00

I am using the code TelephonyManager tMgr =(TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE); mPhoneNumber = tMgr.getLine1Number(); to get the

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I am using the code 

TelephonyManager tMgr =(TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE);
  mPhoneNumber = tMgr.getLine1Number();

to get the phone no programatically in android . But this is working fine only for one sim card.
If i test this code by inserting other sim card, it is giving null. I am trying to find the solution for this. please help me. I have also included READ_PHONE_STATE permission in Manifest.

I want to uniquely identify the sim card. IS there any other way to do this. please let me know.

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1 Answer

  1. Editorial Team

    I think Sim serial Number is unique. You can try this.

    TelephonyManager telemamanger = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
String getSimSerialNumber = telemamanger.getSimSerialNumber();

    Let me know if there is any issue.

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