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