TRACKINGMCP · All container prefixes ↗
A container number beginning with IRSU is owned by IRISL, which operates under SCAC IRIU. Track a IRSU container by its number. (Islamic Republic of Iran Shipping Lines)
| Prefix | IRSU |
|---|---|
| Owner | IRISL |
| Operating carrier | IRISL |
| SCAC | IRIU |
| 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.
Not sure the number you have is valid? The last digit is a checksum — run it through the free ISO 6346 check-digit calculator before blaming the carrier's tracking.
IRSU containers are owned by IRISL (SCAC IRIU).
Track a IRSU container by its number on IRISL.
Owner data from TrackingMCP's verified BIC prefix registry. Updated 2026-07-16.