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 EMPIRE STATE - show graphs
Callsign: WDE4431
MMSI number: 367353080
IMO number: 408126
Navigational status: Under way (engine) (0)
Vessel class: Tanker (80)
Destination: N/A
Location: 37°35.10' N 123°01.87' W - locator CM87LO60GJ - show map
45.6 km West bearing 276° from Montara, San Mateo County, California, United States [?]
46.1 km West bearing 278° from Moss Beach, San Mateo County, California, United States
57.8 km West bearing 249° from San Francisco, San Francisco County, California, United States
103.9 km West bearing 286° from San Jose, Santa Clara County, California, United States
Last position: 2025-02-06 21:40:50 UTC (4d 23h5m ago)
2025-02-06 13:40:50 PST local time at Montara, United States [?]
Course: 239° – heading 229°
Speed: 17 km/h
Dimensions: length 183 m width 32 m draught 8.5 m
Last path: WDE4431>ais via SUNSET
Positions stored: 101583
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