TRACKINGMCP · All container prefixes ↗
A container number beginning with GCNU is owned by Grimaldi, which operates under SCAC GRIU. You can track a GCNU container directly on Grimaldi. (Grimaldi container prefix → routes GCNU… boxes direct to the GNET connector (S3-… shipment refs still need carrier_code=GRIU))
| Prefix | GCNU |
|---|---|
| Owner | Grimaldi |
| Operating carrier | Grimaldi |
| SCAC | GRIU |
| 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.
GCNU containers are owned by Grimaldi (SCAC GRIU).
Track a GCNU container by its number on Grimaldi — or use TrackingMCP's Grimaldi page.
Owner data from TrackingMCP's verified BIC prefix registry. Updated 2026-07-14.