Container Prefix Tracking
CMCU Container Tracking – Crowley Liner Services
Track CMCU containers associated with Crowley Liner Services. Check the ISO number format, owner identity, carrier milestones, and missing-update guidance.
- Prefix
- CMCU
- Owner or operator
- Crowley Liner Services
The four-letter prefix CMCU appears at the start of ISO container identification numbers and is associated with Crowley Liner Services.
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.
CMCU container number format
A container number starting with CMCU has the four-letter prefix, a six-digit serial number, and one check digit, for example CMCU1234567.
Tracking a CMCU container
Enter the full CMCU number to request events. CMCU is a known prefix for Crowley Maritime, but leased or exchanged equipment can travel with another shipping line, so check the operating carrier if nothing appears.
Frequently asked questions
Who owns CMCU containers?
The CMCU prefix is associated with Crowley Liner Services.
Does the CMCU 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.