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 NEW CHALLENGE - show graphs
Callsign: DSQA4
MMSI number: 441509000
IMO number: 409376
Navigational status: Under way (engine) (0)
Vessel class: Tanker (89)
Destination: KR USN (ETA Jan24 19:00)
Location: 33°19.77' N 135°00.49' E - locator PM73MH09XC - show map
55.8 km Southwest bearing 217° from Tanabe, Wakayama, Japan [?]
62.9 km South bearing 192° from Gobō, Wakayama, Japan
96.5 km South bearing 191° from Shimminatochō, Wakayama, Japan
100.7 km South bearing 188° from Wakayama-shi, Wakayama, Japan
Last position: 2026-01-23 14:43:13 UTC (2d 1h55m ago)
2026-01-23 23:43:13 JST local time at Tanabe, Japan [?]
Course: 260° – heading 262°
Speed: 16 km/h
Dimensions: length 105 m width 16 m draught 5.0 m
Last path: DSQA4>ais via JG3HLX
Positions stored: 29893
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