ICAO 24-bit aircraft identification
This column indicates the unique 24-bit identifier of the aircraft concerned. It is assigned by the International Civil Aviation Organisation, and is one of a block of addresses assigned to the same entity, usually a country.
Clicking on any entry will go to a page indicating what we have been able to discover about the particular aircraft. Note, however, that it has not been possible yet to find a Web site which is 100% accurate for all aircraft world-wide. We currently use the site of DFLD, in Germany. There are other sites which can give information, such as
www.gatwickaviationsociety.org.uk/modeslookup.asp
However, these sites restrict the number of accesses per day, and thus should not be overused.