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 KEY MARIN - show graphs
Callsign: ZDHP4
MMSI number: 236342000
IMO number: 297228
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: DEEME
Location: 53°37.08' N 6°21.85' E - locator JO33EO38QI - show map
22.0 km West bearing 281° from Borkum, Lower Saxony, Germany [?]
28.8 km North bearing 4° from Ulrum, Gemeente De Marne, Groningen, Netherlands
46.3 km North bearing 343° from Groningen, Gemeente Groningen, Groningen, Netherlands
124.2 km North bearing 8° from Zwolle, Gemeente Zwolle, Overijssel, Netherlands
Last position: 2025-09-15 04:45:23 UTC (1d 5h36m ago)
2025-09-15 06:45:23 CEST local time at Borkum, Germany [?]
Course: 135° – heading 142°
Speed: 11 km/h
Dimensions: length 88 m width 13 m draught 4.1 m
Persons on board: 14 (2016-04-16 18:46:53 UTC – 3439d 15h35m ago)
Last path: ZDHP4>ais via pa2dx
Positions stored: 129182
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