Right from the word go, the zip code had been recognized as something very contributory to the proper management of the mailing system in the United States. Since its inception till date, the United States post office department had not been able to come by a better means of handling mails apart from the one made available by the zip code system.
It is not only the United States post office department that is making use of the zip code system. Several other countries of the world seem to have been able to recognize the great usefulness of the zip code system and they seem to be adopting it for the proper management of various postal services in their countries.
In today's world, there is rarely any country that doesn't have a zip code to itself. Not only does each of these countries have zip code, the towns and cities in the countries too are attached with zip code. This way, the use of the zip code had become a world wide phenomenon.
This situation had become very helpful even for the world wide transferring and posting of mails offline and even online. And trough its special mailing system, the world has fast become a kind of global village. The situation had become so much advanced to the extent that you can easily recognize a particular country simply by viewing the zip code of that country.
In today's world, it had become rather impossible to have any kind of contact with any country of the world that doesn't have a zip code. Any mail from any other countries of the world to the particular country will never be easy to get through to theintended country.
It is like every country of the world had come to recognize this and because of that, theyhad decided to adopt the zip code system. Today, there is no country of the world that doesn't have a particular zip code by which it can be recognized. The funny aspect of the whole situation is that the original inventor of the zip code system itself might never have thought it possible that his invention will become a world wide thing.