Java tutorial
//package com.java2s; import android.content.Context; import android.telephony.TelephonyManager; import android.text.TextUtils; public class Main { public static String getSubscriberId(Context context) { TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String tel = tm.getSubscriberId(); return TextUtils.isEmpty(tel) ? "" : tel; } }