Get user country by network

UserCountryUtil.java

/**
         * Get ISO 3166-1 alpha-2 country code for this device (or null if not available)
         * @param context Context reference to get the TelephonyManager instance from
         * @return country code or null
         */
        public String getUserCountry(Context context) {
            try {
                final TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
                final String simCountry = tm.getSimCountryIso();
                if (simCountry != null && simCountry.length() == 2) { // SIM country code is available
                    return simCountry.toLowerCase(Locale.US);
                }
                else if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) { // device is not 3G (would be unreliable)
                    String networkCountry = tm.getNetworkCountryIso();
                    if (networkCountry != null && networkCountry.length() == 2) { // network country code is available
                        return networkCountry.toLowerCase(Locale.US);
                    }
                }
            }
            catch (Exception e) { }
            return null;
        }

Based on :
http://stackoverflow.com/questions/3659809/where-am-i-get-country