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Understanding Shipping Container Numbers
Release time:
2026-04-10 10:22
Understanding Shipping Container Numbers
At Aone Cargo, we know that every shipment begins with proper identification. Each shipping container has a unique container number, which is essential for tracking, documentation, and safe handling throughout the shipping process.
A standard container number follows the ISO 6346 international standard and consists of 11 characters:
- Owner Code (3 letters) – Identifies the company that owns the container.
- Equipment Category Identifier (1 letter) – Shows the type of container (e.g., freight container, trailer).
- Serial Number (6 digits) – A unique number assigned by the owner.
- Check Digit (1 digit) – Used to verify the container number is valid.
This unique code is usually painted on the right-hand side of the container doors, making it easy to spot and reference during transport.
Why it matters:
- Ensures accurate shipment tracking worldwide
- Helps avoid errors in documentation and customs clearance
- Provides peace of mind for safe and efficient handling
At Aone Cargo, we make sure every shipment is correctly identified and smoothly handled from origin to destination.
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ONLINE MESSAGES
NORTH CHINA HEADQUARTERS
Aone (HK) Cargo Service Co Ltd.
Tel: +86-532-85082362
Email: bdd@aonecargo.com.hk
Add: Room 2310, A Block, Top Yihe International, #10 Hongkong Middleroad, Shinan District, Qingdao,Shandong, China.
SOUTH CHINA HEADQUARTERS
Aone (HK) Cargo Service Co Ltd.
Tel: +86-(0)-13045049815
Email: w.wong@aone-cargo.com
Add: No. 5, Hailong Road, Liwan District, Guangzhou City,Guangdong,China
