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
SEA CHANGE
MMSI 368227810 · Call sign WDM6734
Not yet on Master's MateType
Passenger
Flag
USALength
23 m
Beam
8 m
Draft
1.3 m
Call sign
WDM6734
Official No.
1306839
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
76
Registered in the United States, SEA CHANGE is a 23-metre excursion vessel. She carries a beam of 8 m and a 1.3-metre draft. Her registration reads MMSI 368227810, call sign WDM6734. For a boat that carries people, SEA CHANGE can lean on the Master's Mate Safety Initiative Network — free distress alerting and a fleet that's paying attention.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard SEA CHANGE 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 18:23 UTC
Position
37.7623° N, 122.3843° W
Status
Under way (engine)
Speed
0.0 kn
Course
310°
Destination
SAN FRANCISCO
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 SEA CHANGE 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 SEA CHANGE and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA CHANGE
What kind of vessel is SEA CHANGE?
SEA CHANGE is a Passenger flagged to United States of America.
Where was SEA CHANGE last seen?
SEA CHANGE was last reported in San Francisco Bay in Jun 2026 on public AIS.
What is SEA CHANGE's MMSI?
SEA CHANGE's MMSI is 368227810. Call sign WDM6734.
How big is SEA CHANGE?
SEA CHANGE is about 23 m long, 8 m on the beam, drawing 1.3 m.
Is SEA CHANGE on the Master's Mate Safety Initiative Network?
Not yet. If SEA CHANGE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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