Why it matters
A bad check digit should not become a bad operational record.
ISO 6346 validation is useful because a unit number can look believable and still be wrong. PrefixCheck runs the math before the number is retyped into the gate, depot, survey, or interchange system.
What the workflow does
Fast validation at the point of work.
- Reads the owner code and serial off the container.
- Calculates the ISO 6346 remainder and check digit.
- Shows whether the full 11-character number is valid.
- Stores the verified result in the local device ledger.
Related guide
Need the formula explained?
Use the guide page for a cleaner explanation of how the ISO 6346 check digit works.
Open ISO 6346 guide