The ENI Number (European Number of Identification) is a unique, eight-digit identifier that is assigned to vessels capable of navigating on inland European waters. It is attached to their hull and remains unchanged for as long as these vessels are in service (regardless of name changes, for example).

It is an AIS-transmitted value. If available, it is displayed on the Vessel Details page along with the specified inland shiptype of the vessel.

The following table contains all the possible variations of the inland shiptype along with their corresponding AIS Shiptypes.