Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel CAPT JOHN SON II - show graphs
Map loading...
Callsign: WDF4294
MMSI number: 367450160
Navigational status: Under way (engine) (0)
Vessel class: Passenger (60)
Destination: FISHING (ETA ***00 24:60)
Location: 41°58.25' N 70°38.88' W - locator FN41QX22FX - show map - static map
2.1 km Northeast bearing 49° from Plymouth, Plymouth County, Massachusetts, United States [?]
2.9 km East bearing 90° from North Plymouth, Plymouth County, Massachusetts, United States
52.1 km Southeast bearing 140° from South Boston, Suffolk County, Massachusetts, United States
54.8 km Southeast bearing 142° from Boston, Suffolk County, Massachusetts, United States
Last position: 2022-09-26 20:39:56 UTC (5d 7h53m ago)
2022-09-26 16:39:56 EDT local time at Plymouth, United States [?]
Course: 145° – heading 511°
Speed: 34 km/h
Dimensions: length 23 m width 7 m draught 0.0 m
Last path: WDF4294>ais via K1XP
Positions stored: 10559
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
User guide · FAQ · Blog · Discussion group · Linking to · AIS sites · Service status · Database statistics · Advertising on · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS