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Callsign, ship name or locator: Clear       
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AIS vessel PRIME NUMBER - show graphs
Callsign: @@@@@@@
MMSI number: 338173539
Vessel class: Sailing (36)
Location: 37°51.47' N 122°27.60' W - locator CM87SU45TU - show map
1.1 miles South bearing 167° from Belvedere, Marin County, California, United States [?]
1.1 miles South bearing 190° from Tiburon, Marin County, California, United States
6.1 miles North bearing 339° from San Francisco, San Francisco County, California, United States
47.3 miles Northwest bearing 319° from San Jose, Santa Clara County, California, United States
Last position: 2025-01-26 14:06:18 EST (6d 7h48m ago)
2025-01-26 11:06:18 PST local time at Belvedere, United States [?]
Course: 235° – heading 511°
Speed: 8 MPH
Last path: @@@@@@@>ais via SUNSET
Positions stored: 6
Stations near current position of PRIME NUMBER - show more
callsign distance last heard - EST      callsign distance last heard - EST
SV SLAINTE56.3 yards 173°2025-01-25 16:51:13 RANDY S CUMMINGS497.4 yards 234°2025-01-16 18:35:17
FLY BOYS0.3 miles 5°2025-01-19 15:26:38 GREYHOUND0.3 miles 130°2025-01-25 16:22:34
MENDOCINO0.3 miles 85°2025-01-30 20:23:29 CHEF`S TAIL0.4 miles 249°2025-01-08 12:51:50
MUDSHARK0.5 miles 36°2025-01-25 16:51:58 COQUITA 0.5 miles 185°2025-01-26 16:19:49
EPIPHANY0.5 miles 215°2025-01-23 18:30:49 RUM TUM TUGGER0.5 miles 173°2025-01-25 15:39:53
3683760600.6 miles 199°2025-01-25 17:06:59 3384937810.6 miles 218°2025-01-25 15:27:08
3384427160.6 miles 122°2025-01-19 15:27:09 LINDO0.7 miles 214°2025-01-05 14:37:07
FRANCESCA0.7 miles 56°2025-01-04 16:32:14 DARK HORSE 0.7 miles 258°2025-01-04 18:19:03
ZOE0.7 miles 213°2025-01-23 17:32:29 SEA SUITE0.7 miles 45°2025-01-14 14:33:30
3669757400.8 miles 264°2025-01-14 13:16:10 RACCOON0.8 miles 240°2025-01-30 16:32:15
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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