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.
Sailing
JOJO
MMSI 211802290 · Call sign DC4370
Not yet on Master's MateType
Sailing
Flag
DEULength
12 m
Beam
4 m
Call sign
DC4370
First reported
May 2026
Last reported
May 2026
AIS reports
85
JOJO flies the German flag — a 12-metre sailing boat. Her hull carries a beam of 4 m. Look for MMSI 211802290, call sign DC4370. Join JOJO to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for cruisers
Sleep easy on the hook aboard JOJO.
GPS-precise anchor-drag alarms, ETA-calibrated weather routing, worldwide charts, and cruisers watching each other’s backs.
Set her anchor watch — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · May 21, 2026
Position
14.4590° N, 60.8696° W
Sailing the Caribbean? 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 cruisers
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put JOJO on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Claim JOJO and switch it all on
Free to join · nothing to install to start · cancel anytime
About JOJO
What kind of vessel is JOJO?
JOJO is a Sailing flagged to Germany.
Where was JOJO last seen?
JOJO was last reported in the Caribbean in May 2026 on public AIS.
What is JOJO's MMSI?
JOJO's MMSI is 211802290. Call sign DC4370.
How big is JOJO?
JOJO is about 12 m long, 4 m on the beam.
Is JOJO on the Master's Mate Safety Initiative Network?
Not yet. If JOJO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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