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 LETO - show graphs
Callsign: PB6544
MMSI number: 244860439
Navigational status: Undefined/default (15)
Vessel class: Sailing (36)
Location: 51°50.29' N 1°23.02' E - locator JO01QU61AE - show map
8.1 km East bearing 98° from Walton-on-the-Naze, Essex, England, United Kingdom [?]
9.4 km East bearing 90° from Frinton-on-Sea, Essex, England, United Kingdom
107.9 km East bearing 70° from City of London, Greater London, England, United Kingdom
110.3 km East bearing 70° from London, Greater London, England, United Kingdom
Last position: 2025-08-18 11:38:22 UTC (170d 13h13m ago)
2025-08-18 12:38:22 BST local time at Walton-on-the-Naze, United Kingdom [?]
Course: 120° – heading 511°
Speed: 10 km/h
Dimensions: length 13 m width 3 m draught 0.0 m
Last path: PB6544>ais via G7OCD
Positions stored: 886
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