MRSU → Maersk · carrier prefix
MRSU Container Tracking — Maersk-Owned Prefix
Track on maersk.com — official Maersk trackerMaersk's tracker accepts the container number directly in the link — the checker below builds it for you.
Maersk has been moving boxes since the dawn of containerisation and its fleet is second only to MSC. A century-old Copenhagen shipping house, it grew through the acquisitions of Sealand, P&O Nedlloyd and Hamburg Süd — and each purchase left its mark in the BIC register.
That is why the Maersk family spans eight prefixes: the heritage codes of absorbed lines still ride on the sides of thousands of boxes, all answering to the same maersk.com tracker.
4 letters + 7 digits, printed on the doors
MRSU check digit: worked example
M | R | S | U | 8 | 9 | 4 | 8 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|
| 24 | 29 | 30 | 32 | 8 | 9 | 4 | 8 | 7 | 0 |
| ×1 | ×2 | ×4 | ×8 | ×16 | ×32 | ×64 | ×128 | ×256 | ×512 |
| 24 | 58 | 120 | 256 | 128 | 288 | 256 | 1024 | 1792 | 0 |
Sum 3946 → 3946 mod 11 = 8 → check digit 8 → MRSU 894870-8
Maersk prefix family
Tracking with Maersk
The maersk.com tracker takes the container number straight in the URL, so a deep link opens your box directly — no form to fill.
Frequently asked questions
Who owns the MRSU container prefix?
MRSU is registered to Maersk, founded 1904 — one of 8 prefixes the line holds in the BIC register, alongside MAEU, MRKU, MSKU.
How do I track a MRSU container?
Track MRSU containers free on the official Maersk tracker at maersk.com — paste the full 11-character number (like the MRSU example on this page) and no account is needed.
Is MRSU 8948708 a valid container number?
Yes — MRSU 894870-8 passes ISO 6346 validation: the weighted letter-and-digit sum for MRSU894870 leaves remainder 8 mod 11, giving check digit 8. The worked table for this MRSU example is on this page.
Is MRSU a shipping line prefix or a leasing company prefix?
MRSU is a shipping-line (carrier) prefix — Maersk both owns the boxes and moves them, so owner and tracker are the same company.