Container Prefix Tracking
ULMU Container Tracking – Ultramarine Service Co
Track ULMU containers associated with Ultramarine Service Co. Check the ISO number format, owner identity, carrier milestones, and missing-update guidance.
- 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 complete number to request available tracking events. If no events appear, confirm the operating carrier because leased or exchanged equipment can move under another shipping line.
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.
Tracking a ULMU container
Enter the full ULMU number to request events. The prefix identifies the owner, but leased or exchanged equipment can travel with another shipping line, so check the operating carrier if nothing appears.
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.