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