TRACKINGMCP · All container prefixes ↗
A container number beginning with SEAU is owned by Maersk, which operates under SCAC MAEU. You can track a SEAU container directly on Maersk. (ex-Sea-Land Service, absorbed 1999)
| Prefix | SEAU |
|---|---|
| Owner | Maersk |
| Operating carrier | Maersk |
| SCAC | MAEU |
| Type | Carrier-owned |
Every shipping container carries an ISO 6346 number: four letters then seven digits (six serial + one check digit). The first three letters are the owner code and the fourth is always U for a freight container — so the four-letter prefix identifies who owns the box. Owner ≠ always the line carrying it: leasing companies own millions of boxes that sail under many carriers, which is why a leasing prefix is tracked by bill of lading, not by the prefix.
SEAU containers are owned by Maersk (SCAC MAEU).
Track a SEAU container by its number on Maersk — or use TrackingMCP's Maersk page.
Owner data from TrackingMCP's verified BIC prefix registry. Updated 2026-07-14.