You only strictly need to use code for transhipping containers on another carrier - if you own the container and the ship you don't need to label it - although it causes no end of problems if you don't!
What tends to happen is that an 'owner' will have multiple owner codes for different subsidiaries or companies they have taken over/merged.
The containers also have a lifetime of 10-20years so presumably you can reuse numbers of containers that have been lost or scrapped.
What tends to happen is that an 'owner' will have multiple owner codes for different subsidiaries or companies they have taken over/merged.
The containers also have a lifetime of 10-20years so presumably you can reuse numbers of containers that have been lost or scrapped.