MarineActivity Guides https://marineactivity.com/guides/ AIS vessel tracking reference guides — how AIS works, reading an MMSI, nav status codes, and more. en <![CDATA[AIS navigational status codes, all sixteen]]> https://marineactivity.com/guides/ais-navigational-status-codes/ https://marineactivity.com/guides/ais-navigational-status-codes/ Tue, 01 Sep 2026 00:00:00 GMT <![CDATA[AIS ship type codes explained]]> https://marineactivity.com/guides/ais-ship-type-codes/ https://marineactivity.com/guides/ais-ship-type-codes/ Tue, 01 Sep 2026 00:00:00 GMT <![CDATA[AIS vs radar vs satellite tracking: what each can and cannot see]]> https://marineactivity.com/guides/ais-vs-radar-vs-satellite/ https://marineactivity.com/guides/ais-vs-radar-vs-satellite/ Tue, 01 Sep 2026 00:00:00 GMT <![CDATA[How AIS actually works]]> https://marineactivity.com/guides/how-ais-works/ https://marineactivity.com/guides/how-ais-works/ Tue, 01 Sep 2026 00:00:00 GMT <![CDATA[Reading an MMSI: what the nine digits mean]]> https://marineactivity.com/guides/reading-an-mmsi/ https://marineactivity.com/guides/reading-an-mmsi/ Tue, 01 Sep 2026 00:00:00 GMT <![CDATA[Why ships "go dark" — and when it means something]]> https://marineactivity.com/guides/why-ships-go-dark/ https://marineactivity.com/guides/why-ships-go-dark/ Tue, 01 Sep 2026 00:00:00 GMT