Plain-English guides to AIS, vessel tracking, and maritime data.
Real-time AIS vessel tracking, explained for anyone — no maritime background required.
The MMSI is the unique fingerprint of every AIS-equipped vessel. Here's how to read one.
When a vessel stops broadcasting AIS, that silence is itself a signal. Here's how to detect it.
Dutch Harbor lands more seafood by value than any U.S. port. Here's what its AIS traffic reveals.
How marine underwriters and P&I clubs use AIS archives to reconstruct incidents and assess risk.
Find any AIS-equipped vessel by its name or 9-digit MMSI — here's the fast way.
AIS and radar answer different questions. Here's how they complement each other.
Puget Sound is one of the busiest waterways on the West Coast. Here's how to watch it live.
If your operations are in the North Pacific, coverage and depth matter more than a global vessel count.
P&I clubs cover the liabilities hull insurance doesn't. Here's the plain-English version.
Cruise ships, ferries, tugs and fishing boats thread the same protected waterway. Here's how to watch it live.
Nearly everything Hawaii consumes moves by water. Here's the traffic behind the shelves.
Anchorage's supply line runs through 35-foot tides, winter ice, and one narrow inlet.