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UPU S10

Terry Burton edited this page Oct 13, 2026 · 1 revision

UPU S10

UPU S10 is a Code 128 barcode carrying the 13-character S10 identifier of the Universal Postal Union, which identifies postal items, such as registered mail and parcels, as they pass between postal operators.

Uses:

  • International tracked postal items.
  • Domestic postal items of many postal operators.

Standards: UPU S10 - Identification of postal items - 13-character identifier.

Data and Options

  • The data field is the S10 identifier: a two-letter service indicator, an eight-digit serial number, a check digit and the two-letter ISO country code of the issuing postal operator, without spaces.
  • If the check digit is omitted then the encoder will calculate and add it. If it is given then it is verified.
  • Service indicators beginning with J, K, S, T or W are reserved and are refused.
  • The human readable text is spaced in groups for readability.
  • The default height is half an inch. The X-dimension of the standard is from 0.25mm to 0.51mm, with a minimum of 0.33mm recommended. The height is at least 9mm and 15% of the width of the symbol, with a minimum of 12.5mm recommended.

Examples

Data:    EE471108151FR
Options: includetext
Encoder: upus10

With the check digit calculated:

Data:    RR47312482GB
Options: includetext
Encoder: upus10


Symbologies Reference

Point of Sale

GS1 DataBar

Supply Chain

Two-dimensional Symbols

One-dimensional Symbols

Postal Symbols

Pharmaceutical Symbols

Less-used Symbols

GS1 Composite Symbols

Raw Symbols

Partial Symbols

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