Java tutorial
//package com.java2s; import android.content.Context; import android.telephony.TelephonyManager; public class Main { public static String getIMSI(Context context) { TelephonyManager mTelephonyMgr = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String imsi = mTelephonyMgr.getSubscriberId(); return imsi; } }