David Wang
-Updated on June 24, 2026
What do the letters at the start of my tracking number mean?
The first two letters indicate the service. E prefixes (such as EE) are EMS express items, R prefixes (such as RR) are registered mail, small packets, or K-Packet, and C prefixes (such as CP) are standard international parcels between 2 and 20 kg. All international numbers end in KR.
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