Java tutorial
//package com.java2s; //License from project: Open Source License import android.os.Build; public class Main { /** * Generates a pseudo-unique ID according to http://www.pocketmagic.net/android-unique-device-id/ */ static String generateDeviceId() { return "35" + //we make this look like a valid IMEI Build.BOARD.length() % 10 + Build.BRAND.length() % 10 + Build.CPU_ABI.length() % 10 + Build.DEVICE.length() % 10 + Build.DISPLAY.length() % 10 + Build.HOST.length() % 10 + Build.ID.length() % 10 + Build.MANUFACTURER.length() % 10 + Build.MODEL.length() % 10 + Build.PRODUCT.length() % 10 + Build.TAGS.length() % 10 + Build.TYPE.length() % 10 + Build.USER.length() % 10; //13 digits } }