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.
Tug
ARTEMIS
MMSI 368333870 · Call sign WDP2176
Not yet on Master's MateType
Tug
Flag
USALength
25 m
Beam
13 m
Draft
5.2 m
Call sign
WDP2176
IMO
1037804
Official No.
1331497
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
ARTEMIS is a tugboat listed on the the United States registry, 25 metres in length. ARTEMIS has 13 metres in the beam and a 5.2 m draft. Her papers read MMSI 368333870, call sign WDP2176, IMO 1037804. ARTEMIS can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working boats
Built for boats that work — like ARTEMIS.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Live AIS position · Jun 9, 2026 07:56 UTC
Position
37.9158° N, 122.3618° W
Status
Moored
Speed
0.0 kn
Course
88°
Destination
SF ASSIST
Working 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put ARTEMIS on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 ARTEMIS and switch it all on
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About ARTEMIS
What kind of vessel is ARTEMIS?
ARTEMIS is a Tug flagged to United States of America.
Where was ARTEMIS last seen?
ARTEMIS was last reported in San Francisco Bay in Jun 2026 on public AIS.
What is ARTEMIS's MMSI?
ARTEMIS's MMSI is 368333870. Call sign WDP2176. IMO 1037804.
How big is ARTEMIS?
ARTEMIS is about 25 m long, 13 m on the beam, drawing 5.2 m.
Is ARTEMIS on the Master's Mate Safety Initiative Network?
Not yet. If ARTEMIS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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