Container Prefix Directory
ULMU Container Prefix Owner
ULMU is a container owner code associated with Ultramarine Service Co. Learn how BIC container prefixes identify equipment owners and operators.
- Prefix
- ULMU
- Owner or operator
- Ultramarine Service Co
The four-letter prefix ULMU appears at the start of ISO container identification numbers and is associated with Ultramarine Service Co.
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.
ULMU container number format
A container number starting with ULMU has the four-letter prefix, a six-digit serial number, and one check digit, for example ULMU1234567.
Who uses ULMU containers
ULMU is registered to Ultramarine Service Co. 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 ULMU containers?
The ULMU prefix is associated with Ultramarine Service Co.
Does the ULMU 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.