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How to Read a WWSU Container Number (ISO 6346)
WWS
U
123456
7
Carrier Owner Code (Westwood Shipping)
Equipment Category (U)
6-Digit Serial Number
Check Digit Verification
For accurate WWSU container tracking, every container follows the international ISO 6346 standard. The first three letters represent the BIC registered owner code for Westwood Shipping. The 4th character is always U denoting an intermodal freight container, followed by a unique 6-digit serial number and a calculated check digit for tracking verification.
Westwood Shipping Lines & Prefix Directory
Westwood Shipping
Westwood Shipping LinesWestwood Shipping Lines is a Pacific Northwest-based carrier providing container services between the US West Coast, Japan, Korea, and China. Use our WWSU container tracking tool for real-time visibility across global maritime routes.
Track via Westwood Shipping Carrier Page
Headquarters
Tacoma, USA
Founded
1978
Global Fleet
8+ vessels
Carrier Alliance
Independent
All Registered Westwood Shipping Container Prefixes (7)
Select any Westwood Shipping container prefix to view dedicated prefix tracking, serial number anatomy, and container information.
Frequently Asked Questions About WWSU Container Tracking
What does the WWSU container prefix stand for?
WWSU is an official BIC-registered container prefix operated by Westwood Shipping Lines. The letters "WWS" identify the carrier, and "U" designates a standard ISO 6346 intermodal freight container.
How do I perform WWSU container tracking live?
Enter your full 11-character WWSU container number (e.g. WWSU1234567) into the tracking field above. TraceContainer will fetch real-time vessel schedules, port milestones, and container status.
Can I track all Westwood Shipping container prefixes on TraceContainer?
Yes, TraceContainer supports live tracking across all registered Westwood Shipping prefixes including WWSU, WWTU, WWUU, WWVU, WWWU, WWXU and more.