How to track a UPU S10 postal / EMS number
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Tracking UPU S10 Postal and EMS Shipments
UPU S10 is the international standard format for postal and express mail service (EMS) tracking numbers. These numbers consist of two service letters, eight digits, one check digit, and a two-letter ISO country code. For example, RR123456785CN breaks down as: RR (service identifier) + 12345678 (shipment number) + 5 (check digit) + CN (China).
To track a UPU S10 shipment, paste your tracking number into TrackJet's universal tracking box. The system automatically detects the UPU S10 standard and identifies the carrier based on the country code and service letters. TrackJet supports 20 active postal and EMS carriers under this standard, covering major postal operators worldwide.