Container Prefix Guide
MSWU

Container prefix operated by A.P. Møller–Maersk

Copenhagen, Denmark · Founded 1904 · 700+ vessels · 4.6M TEU

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What This Prefix Tells You

Every MSWU container moves under Maersk's global network

The first four characters of any container number identify its owner. MSWU containers belong to A.P. Møller–Maersk (Maersk) — one of the world's most recognised names in global shipping and integrated logistics. These containers operate primarily on Asia–Europe, Transpacific, Transatlantic, Intra-Asia. When you're tracking a MSWU container, you're tracking cargo that moves through Maersk's fleet of 700+ vessels.

Owner

A.P. Møller–Maersk

Headquarters

Copenhagen, Denmark

Fleet Size

700+ vessels

Capacity

4.6M TEU

Founded

1904

Main Routes

Asia–Europe, Transpacific, Transatlantic, Intra-Asia

Alliance

Gemini Cooperation

Website

maersk.com

The Tracking Problem

Maersk's portal tells you what happened. Not what's happening.

Maersk updates their tracking system when milestones are logged — often hours or days after they occur. If your MSWU container is slow-steaming, anchored outside port, or stuck in a customs queue, the portal won't tell you until it's logged.

Maersk Portal

"In Transit" for days
ETA that hasn't changed
Status logged 3+ days ago
No explanation for delays

CargoPilot

Live vessel position via satellite
Real speed and heading now
Port congestion at destination
AI-revised ETA with delay reasoning

Example MSWU Container Numbers

MSWU container numbers follow the ISO 6346 standard: four owner-code letters followed by six digits and a check digit.

Common Questions

About the MSWU prefix

What carrier uses the MSWU container prefix?

The MSWU container prefix is the ISO 6346 owner code for A.P. Møller–Maersk (Maersk), headquartered in Copenhagen, Denmark. A.P. Møller–Maersk is one of the world's most recognised names in global shipping and integrated logistics. Founded in 1904, operating a fleet of 700+ vessels.

What do MSWU container numbers look like?

MSWU container numbers follow the ISO 6346 standard: four letters (MSWU) followed by six digits and a check digit — for example MSWU1234567 or MSWU9876543. The fourth letter is always U (freight containers), J (detachable equipment), or Z (trailers).

What trade routes do MSWU containers operate on?

MSWU containers are operated by A.P. Møller–Maersk (Maersk) primarily on Asia–Europe, Transpacific, Transatlantic, Intra-Asia. The carrier is part of the Gemini Cooperation.

Track your MSWU containers the right way.

Stop checking Maersk's portal for status codes. CargoPilot watches the actual vessel and tells you what's changed — and what it means.

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