Container Prefix Directory
TOPU Container Prefix Owner
TOPU is a container owner code associated with Toptainer Containermanagement & Sales GmbH. Learn how BIC container prefixes identify equipment owners and operators.
- Prefix
- TOPU
- Owner or operator
- Toptainer Containermanagement & Sales GmbH
The four-letter prefix TOPU appears at the start of ISO container identification numbers and is associated with Toptainer Containermanagement & Sales GmbH.
A complete container number combines the owner prefix, six-digit serial number, and check digit. The prefix identifies registered equipment ownership and does not always identify the carrier currently transporting the container.
Use the CargoEnter container validator to check the number structure before starting shipment tracking.
TOPU container number format
A container number starting with TOPU has the four-letter prefix, a six-digit serial number, and one check digit, for example TOPU1234567.
Who uses TOPU containers
TOPU is registered to Toptainer Containermanagement & Sales GmbH. Leased or exchanged equipment can move with a different shipping line, so the prefix alone does not identify the carrier of a shipment.
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Frequently asked questions
Who owns TOPU containers?
The TOPU prefix is associated with Toptainer Containermanagement & Sales GmbH.
Does the TOPU prefix tell me the shipping line?
Not always. The prefix identifies the equipment owner. A leased or exchanged container can travel with a different carrier.