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 ROYAL AMERICAN - show graphs
Callsign: WDA5451
MMSI number: 369511000
IMO number: 541139
Navigational status: Undefined/default (15)
Vessel class: Fishing (30)
Destination: (ETA ***00 24:60)
Location: 47°39.45' N 122°22.11' W - locator CN87TP57ST - show map
6.3 km Northwest bearing 334° from Seattle, King County, Washington, United States [?]
11.1 km South bearing 191° from Shoreline, King County, Washington, United States
12.4 km Southwest bearing 236° from Inglewood-Finn Hill, King County, Washington, United States
113.8 km Southeast bearing 139° from Victoria, British Columbia, Canada
Last position: 2025-12-09 23:26:24 UTC (11s ago)
2025-12-09 15:26:24 PST local time at Seattle, United States [?]
Course: 115.1° – heading 511°
Speed: 0 km/h
Dimensions: length 34 m width 7 m draught 4.0 m
Last path: WDA5451>ais via KB7RYY
Positions stored: 1132
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