What is the difference between Primary Cargo Control Number and Housebill Cargo Control Number?

What is the difference between Primary Cargo Control Number and Housebill Cargo Control Number?

Primary CCN is the carrier’s CCN, also known as the Master Bill Number is a bill of lading number issued by the carrier and always begins with Carrier’s carrier code.

Ocean Carrier – 9000 series

Airline Carrier – IATA CODE

The eHBL must be transmitted referencing the Primary CCN

Housebill CCN is the housebill number issued by the freight forwarder for a particular shipment, it always begin with the freight forwarder's carrier code (8000 series).