The town Ingeniero Williams belongs to Buenos Aires province and its ZIP Code is 6603. The CPA is B6605XAE.The same ZIP Code applies to other towns. You can also scroll down to see the postal code zone in the map.
There is only one CPA for Ingeniero Williams in Buenos Aires province and it is B6605XAE
The ZIP Code for Ingeniero Williams in Buenos Aires is 6603
There are two types of postal codes in use in Argentina. The oldest 4-digit code still in use and the Argentine Postal Code (CPA). Since 1998 Correo Argentino is the entity responsible for maintaining, updating and incorporating into the Argentine Postal Code database of all localities, streets and heights existing in the territory of the Argentine Republic. The four digits that identify the locality are mostly the numbering that was previously used. Those localities with less than 500 inhabitants have a single CPA.
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See the list of towns with 6603 ZIP Code en Argentina