TRACKINGMCP · All container prefixes ↗
A container number beginning with UNSU is owned by Ellerman, which operates under SCAC ELLU. You can track a UNSU container directly on Ellerman. (Ellerman variant box prefix)
| Prefix | UNSU |
|---|---|
| Owner | Ellerman |
| Operating carrier | Ellerman |
| SCAC | ELLU |
| 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.
UNSU containers are owned by Ellerman (SCAC ELLU).
Track a UNSU container by its number on Ellerman — or use TrackingMCP's Ellerman page.
Owner data from TrackingMCP's verified BIC prefix registry. Updated 2026-07-14.