Automatic Identification System
As part of the global maritime safety system, ships over 300 tons are now required to broadcast their positions using AIS.
Display # 
# Web Link
1   Link   AIS Liverpool
A group of ShipPlotter enthusiasts bring you live vessel movements from around the Irish Sea (and further!) derived from AIS data. Click on the map to see the individual ships, their statistics and photos.
2   Link   Free AIS
Freeais.org is a vessel monitoring system written in Java and will be published as open source into public domain.This site should give users information about the freeais.org project and help us to get in contact with other developers to exchange our experience. freeais.org is a solution for tracking vessels sending AIS signals.

3   Link   AIS Free Live
The free version of www.aislive.com
Established in 2004, AISLive now covers over 1,200 places worldwide
4   Link   APRS World
Currently APRS World provides over 2 million maps per month for findu.com as well as hundreds of thousands of hits and maps from APRS World datamart and other sites.

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