SPSU container prefix

A container number beginning with SPSU is owned by SPG Line, which operates under SCAC SPSU. You can track a SPSU container directly on SPG Line / Shandong Marine.

Prefix	SPSU
Owner	SPG Line
Operating carrier	SPG Line / Shandong Marine
SCAC	SPSU
Type	Carrier-owned

Track a SPSU container →

How a container number is built

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.

SPSU — FAQ

What shipping line is SPSU?

SPSU containers are owned by SPG Line (SCAC SPSU).

How do I track a SPSU container?

Track a SPSU container by its number on SPG Line / Shandong Marine — or use TrackingMCP's SPG Line / Shandong Marine page.

Owner data from TrackingMCP's verified BIC prefix registry. Updated 2026-07-14.