Important things to consider when sending a package to Argentina.
Proceed to send a package to Argentina
The Argentine Postal Code (CPA) consists of three parts
The first part, a letter, defines which province the postal code belongs to
The second part, four numbers, is the old postal code format that was previously used in Argentina
The third part, a combination of three letters, defines which side of the area the street address is located
If you don't know the CPA code, you can look it up in the Argentine postal code directory.
Shipit's postal code search works in the following way for Argentina:

You can use the following shipping methods when sending a package to Argentina:
Postal Parcel (Priority)
Posti EMS
UPS Express Saver
UPS Express
UPS Expedited
Prohibited Shipments
Including communist publications, animal products, clothes and fabrics for commercial purposes (can be sent as gifts, gifts under $25 are duty-free, mark on commercial invoice 'Obsequio para persona particular'), cotton seeds, corn, and perishable goods.
Restricted items also include money, various valuables, and securities. Read more about restrictions in the dangerous goods and prohibited shipments sections.
When sending a package to Argentina, you must complete a commercial or proforma invoice.
The country code for Argentina is +54.
Attachments must be written in English or Spanish.
Also note the carrier-specific restrictions.