David Wang
-Updated on June 26, 2026
What does a Slovakia Post tracking number look like?
It follows the Universal Postal Union S10 standard: two letters, nine digits, and the SK country code, for a total of 13 characters (for example, CP123456785SK). The first letter shows the product class, R for registered mail, C for parcels, E for EMS, and L for tracked letters, while the nine digits are the unique serial number with a built-in check digit.
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