Container Prefix Tracking
PONU Container Tracking – Maersk Line
Track PONU containers associated with Maersk Line. Check the ISO number format, owner identity, carrier milestones, and missing-update guidance.
- Prefix
- PONU
- Owner or operator
- Maersk Line
The four-letter prefix PONU appears at the start of ISO container identification numbers and is associated with Maersk Line.
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.
PONU container number format
A container number starting with PONU has the four-letter prefix, a six-digit serial number, and one check digit, for example PONU1234567.
Tracking a PONU container
Enter the full PONU 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 PONU containers?
The PONU prefix is associated with Maersk Line.
Does the PONU 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.