NSA2 container prefix

A container number beginning with NSA2 is owned by Blue Water Lines, which operates under SCAC BWLU. You can track a NSA2 container directly on Blue Water Lines.

Prefix	NSA2
Owner	Blue Water Lines
Operating carrier	Blue Water Lines
SCAC	BWLU
Type	Carrier-owned

Track a NSA2 container →

Other prefixes owned by Blue Water Lines

BWLU

How a container number is built

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.

NSA2 — FAQ

What shipping line is NSA2?

NSA2 containers are owned by Blue Water Lines (SCAC BWLU).

How do I track a NSA2 container?

Track a NSA2 container by its number on Blue Water Lines — or use TrackingMCP's Blue Water Lines page.

Owner data from TrackingMCP's verified BIC prefix registry. Updated 2026-07-14.