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I have tried below code 

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

Permission 

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

I have tried in two device

  1. Micromax Canvas-4 (Getting user phone number)
  2. Htc desire 816G (Not able to get user phone number)

Please help me !! Your help will be appreciated. Thanks in advance.

Raj Turakhia
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1 Answers1

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It is occurring because you need to set your own phone number on the device. please have a look at the below link.

getLine1Number() Returns blank, not null

This will solve your problem.

Community
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Sam
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  • I checked you given link but it is not solution it is just need to set default value in phone number if i did not get through the code. But my question is why we got Null/Blank Phone number even if device has Sim card – Raj Turakhia Apr 05 '15 at 03:46
  • getLine1Number() only get the number stored on the sim card..a lot of operators don't write the sim number.............. please check below http://stackoverflow.com/questions/5134398/telephonymanager-getline1number-failing – Sam Apr 05 '15 at 03:56