Java tutorial
//package com.java2s; import android.content.Context; import android.telephony.TelephonyManager; public class Main { public static String getPhoneNumber(Context ctx) { TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE); String phoneNumber = tm.getLine1Number(); if (phoneNumber == null || phoneNumber.length() == 0) { return null; } phoneNumber = phoneNumber.replace("+82", "0"); return phoneNumber; } }