VesselFlow

The AIS field guide

What the readings on a ship tracker actually mean: AIS, course against heading, MMSI and IMO numbers, destinations and ETAs typed by hand, and why small boats vanish from the map.

Live map · Ports · Chokepoints · AIS field guide · About

VesselFlow

VesselFlow is a live map of the world’s ship traffic, drawn from AIS transponder broadcasts: where vessels are now, which ships are at a given port, and how busy each major shipping chokepoint is. It needs JavaScript to draw the map, so there is nothing to show here with it switched off.

Get VesselFlow for iPhone · Privacy · Terms