bienvenuelisis

// Lists of countries with ISO 3166 codes, presented in various formats.
// Last Updated: July 30, 2020

// If you're using PHP, I suggest checking out:
// https://github.com/thephpleague/iso3166
// or Laravel: https://github.com/squirephp/squire
// 
// JS developers can check out:
// https://www.npmjs.com/package/iso3166-2-db
//

bienvenuelisis

//Get the instance of TelephonyManager
final TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

try {
    if (tm != null) {
        Class telephonyManagerClass = Class.forName(tm.getClass().getName());

        if (telephonyManagerClass != null) {
            Method getITelephony = telephonyManagerClass.getDeclaredMethod("getITelephony");