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 KOUYUU MARU - show graphs
Callsign: JD2273
MMSI number: 431501855
IMO number: 347009
Navigational status: Under way (engine) (0)
Vessel class: Cargo (79)
Destination: JP TXD OFF (ETA Aug01 12:00)
Location: 34°26.33' N 134°23.60' E - locator PM74EK75EH - show map
19.9 km East bearing 104° from Tonoshō, Kagawa, Japan [?]
23.9 km Northeast bearing 57° from Shido, Kagawa, Japan
77.5 km West bearing 249° from Kōbe-shi, Hyōgo, Japan
105.3 km West bearing 255° from Ōsaka-shi, Ōsaka, Japan
Last position: 2025-07-31 08:57:48 UTC (8d 16h47m ago)
2025-07-31 17:57:48 JST local time at Tonoshō, Japan [?]
Course: 250° – heading 245°
Speed: 18 km/h
Dimensions: length 74 m width 12 m draught 4.0 m
Last path: JD2273>ais via JG3HLX
Positions stored: 81910
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 aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS