Java tutorial
//package com.java2s; //License from project: Apache License import android.app.Activity; import android.content.Context; import android.telephony.TelephonyManager; public class Main { public static String getPhone(Activity context) { TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); String phoneId = tm.getLine1Number(); return phoneId; } }