Call sign and Lloyd's number

One of the most frequent error that I have to handle in my EDI environment, while processing incoming EDI transactions, relates to wrong Call Sign / Lloyd's Number stated into the TDT segment as c222.8213.

Here is some useful sites where you can check about vessels Call Sign, Lloyd's Number and other interesting stuff about ships/boats: 

• Equasis (registration required);
• Marine Traffic;
• Vessel Tracker.