What Are Shipping Container Codes & How Are They Used?

Shipping container codes help you move freight securely and accurately. These codes are part of a global system used to identify containers, track their location, confirm their size and type, and document their ownership. If you work with intermodal shipments, understanding these codes is essential.

What Type of Freight Uses Shipping Containers?

Containers are used to move nearly every kind of freight. Whether you're handling manufactured goods, electronics, raw materials, or frozen products, shipping containers offer a secure and flexible way to protect cargo in transit. They're designed to fit smoothly between transport modes, which is why they’re central to intermodal shipping.

Each type of container is matched to a specific kind of cargo. For example, tank containers (tankers) are built for liquids. Flat racks (or flatbeds) carry oversized machinery. These details are tracked using shipping container type codes, which help you choose the right unit for the job and verify it meets shipping and handling requirements.

Why Are Codes for Shipping Containers Necessary?

Container codes are more than markings on the box—they keep your operations organized and compliant. You can see these codes on shipment records, tracking tools, booking forms, and customs paperwork. 

Codes vary based on purpose. Shipping container ISO codes show the container’s size and design. Container owner codes identify the company responsible for the equipment. Some companies even apply shipping container color codes to support internal sorting or yard management.

If you’re managing container bookings or verifying information before loading, tools like Standard Carrier Alpha Code® (SCAC®) can help confirm carrier codes and reduce errors. A small mismatch—such as a wrong character or outdated identifier—can cause delays, billing issues, or customs rejection. That’s why staying precise with these codes matters at every step.

Who Regulates Shipping Container Codes?

The Bureau International des Containers (BIC) manages the international standards for container identification. As the governing body responsible for managing the registration of container prefixes under the ISO 6346 standard, BIC assigns and maintains container owner codes and publishes formatting rules that apply across the shipping industry.

When you see a standardized code printed on a container, it means the unit has been registered through BIC. That registration helps prevent duplicate codes and supports global tracking. By relying on this shared system, logistics teams worldwide can coordinate more easily and resolve issues faster.

How Do You Look Up BIC Codes?

When you need to confirm container ownership or validate the format of a code, the BIC Code Finder is the best place to start. It lets you search for a code and find the corresponding registered company. Looking up these codes is useful when working with unfamiliar partners or reviewing documents for accuracy.

You can also perform a shipping container number lookup to trace a specific unit or use a container number check to confirm that a code follows the correct format. If you need to understand the unit’s structure, a container ISO code lookup will show whether it matches your cargo needs. The BIC code container database can also support broader container lookup needs when working across multiple carriers or systems.

Every container has a story, and it begins with a code. Learning how to read, record, and verify these identifiers helps you make shipping more transparent and less prone to costly mistakes.