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AIS vessel MAYHEM - show graphs
Callsign: 338440832
MMSI number: 338440832
Vessel class: Pleasure (37)
Location: 37°49.58' N 122°28.48' W - locator CM87ST38AH - show map
3.8 km South bearing 166° from Sausalito, Marin County, California, United States [?]
5.2 km South bearing 190° from Belvedere, Marin County, California, United States
7.5 km Northwest bearing 320° from San Francisco, San Francisco County, California, United States
74.4 km Northwest bearing 317° from San Jose, Santa Clara County, California, United States
Last position: 2025-10-28 19:19:05 UTC (20d 6h6m ago)
2025-10-28 12:19:05 PDT local time at Sausalito, United States [?]
Course: 40° – heading 39°
Speed: 7 km/h
Last path: 338440832>ais via SUNSET
Positions stored: 126
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.
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