Container prefix operated by HMM Co., Ltd.
Seoul, South Korea · Founded 1976 · 100+ vessels · 1.1M TEU
3 free shipments · No card required
What This Prefix Tells You
The first four characters of any container number identify its owner. HDMU containers belong to HMM Co., Ltd. (HMM) — South Korea's national flagship carrier, operating some of the world's largest container vessels. These containers operate primarily on Asia–Europe, Transpacific, Intra-Asia. When you're tracking a HDMU container, you're tracking cargo that moves through HMM's fleet of 100+ vessels.
Owner
HMM Co., Ltd.
Headquarters
Seoul, South Korea
Fleet Size
100+ vessels
Capacity
1.1M TEU
Founded
1976
Main Routes
Asia–Europe, Transpacific, Intra-Asia
Alliance
Premier Alliance
Website
hmm21.com
The Tracking Problem
HMM updates their tracking system when milestones are logged — often hours or days after they occur. If your HDMU container is slow-steaming, anchored outside port, or stuck in a customs queue, the portal won't tell you until it's logged.
HMM Portal
CargoPilot
Example HDMU Container Numbers
HDMU container numbers follow the ISO 6346 standard: four owner-code letters followed by six digits and a check digit.
Common Questions
The HDMU container prefix is the ISO 6346 owner code for HMM Co., Ltd. (HMM), headquartered in Seoul, South Korea. HMM Co., Ltd. is South Korea's national flagship carrier, operating some of the world's largest container vessels. Founded in 1976, operating a fleet of 100+ vessels.
HDMU container numbers follow the ISO 6346 standard: four letters (HDMU) followed by six digits and a check digit — for example HDMU1234567 or HDMU9876543. The fourth letter is always U (freight containers), J (detachable equipment), or Z (trailers).
HDMU containers are operated by HMM Co., Ltd. (HMM) primarily on Asia–Europe, Transpacific, Intra-Asia. The carrier is part of the Premier Alliance.
Stop checking HMM's portal for status codes. CargoPilot watches the actual vessel and tells you what's changed — and what it means.
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