Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Passenger
MARE ISLAND
MMSI 366989380 · Call sign WDC2198
Not yet on Master's MateType
Passenger
Flag
USALength
42 m
Beam
10 m
Draft
1.6 m
Call sign
WDC2198
IMO
9144665
Official No.
1053103
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
75
MARE ISLAND is an American ferry vessel, 42 metres LOA. She has a beam measuring 10 metres and a draft of 1.6 m. Officially she's MMSI 366989380, call sign WDC2198, IMO 9144665. It's free to add MARE ISLAND to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard MARE ISLAND safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 16:57 UTC
Position
37.7947° N, 122.3912° W
Status
Under way (engine)
Speed
0.1 kn
Course
168°
Destination
US^0V0P>0V0P
Sailing San Francisco Bay? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put MARE ISLAND on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim MARE ISLAND and switch it all on
Free to join · nothing to install to start · cancel anytime
About MARE ISLAND
What kind of vessel is MARE ISLAND?
MARE ISLAND is a Passenger flagged to United States of America.
Where was MARE ISLAND last seen?
MARE ISLAND was last reported in San Francisco Bay in Jun 2026 on public AIS.
What is MARE ISLAND's MMSI?
MARE ISLAND's MMSI is 366989380. Call sign WDC2198. IMO 9144665.
How big is MARE ISLAND?
MARE ISLAND is about 42 m long, 10 m on the beam, drawing 1.6 m.
Is MARE ISLAND on the Master's Mate Safety Initiative Network?
Not yet. If MARE ISLAND is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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