KIX

The KIX barcode (Klant index)

  • Used for mail sorting by the postal service of the Netherlands, Koninklijke TNT Post (Royal TNT Post)
  • Regarded as “four-state” because there are four types of bars, classified by presence of ascenders and/or descenders
  • Transcribable using DAFT notation
  • Used by a number of countries in their postal systems, though the specific symbologies by which they encode characters can vary
  • Encodes alphanumeric characters, and is a slight variant of the Royal Mail 4-State system, omitting the start and end symbols and checksum


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