Skip to main content

Container Codes

Container codes follow the ISO 6346 international standard for container identification.

Format​

Container codes consist of:

  1. Owner Code - 3 uppercase letters (e.g., ABC)
  2. Equipment Category Identifier - 1 letter (usually U for freight container)
  3. Serial Number - 6 digits (e.g., 123456)
  4. Check Digit - 1 digit (calculated automatically)

Example: ABCD1234567

  • ABCD = Owner code + Equipment category
  • 123456 = Serial number
  • 7 = Check digit

Validation​

The system automatically validates container codes:

  • Format must match ISO 6346 standard
  • Check digit is verified
  • Invalid codes are rejected with an error message

Common Issues​

Wrong Format​

Problem: Code doesn't match expected format

Solution: Ensure you're using:

  • Exactly 4 letters (uppercase)
  • Exactly 7 digits
  • No spaces or special characters

Invalid Check Digit​

Problem: Code format is correct but check digit is wrong

Solution: Verify the container code from the physical container. The check digit is calculated from the owner code and serial number.

tip

Tip: If you're unsure about a container code, check the physical container or shipping documentation. The code is usually printed on the container.