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.
Towing Vessel
CAPE ANN
MMSI 369322000 · Call sign WDJ8731
Not yet on Master's MateType
Towing Vessel
Flag
USALength
139 m
Beam
22 m
Draft
6.6 m
Call sign
WDJ8731
IMO
9848510
Official No.
624741
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
Registered in the United States, CAPE ANN is a 139-metre working vessel. Her hull carries a 22-metre beam and a draft measuring 6.6 metres. Her papers read MMSI 369322000, call sign WDJ8731, IMO 9848510. Bring CAPE ANN aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like CAPE ANN.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 14:01 UTC
Position
37.8157° N, 122.4848° W
Status
Pushing ahead
Speed
11.1 kn
Course
50°
Destination
US ROD5
ETA
06-09 15:00 UTC
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 CAPE ANN 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 CAPE ANN and switch it all on
Free to join · nothing to install to start · cancel anytime
About CAPE ANN
What kind of vessel is CAPE ANN?
CAPE ANN is a Towing Vessel flagged to United States of America.
Where was CAPE ANN last seen?
CAPE ANN was last reported in San Francisco Bay in Jun 2026 on public AIS.
What is CAPE ANN's MMSI?
CAPE ANN's MMSI is 369322000. Call sign WDJ8731. IMO 9848510.
How big is CAPE ANN?
CAPE ANN is about 139 m long, 22 m on the beam, drawing 6.6 m.
Is CAPE ANN on the Master's Mate Safety Initiative Network?
Not yet. If CAPE ANN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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