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