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