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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.
Search & Rescue
SIGMA
MMSI 377343000 · Call sign J8B6924
Not yet on Master's MateType
Search & Rescue
Flag
VCTLength
47 m
Beam
11 m
Draft
6.3 m
Call sign
J8B6924
IMO
9235309
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
9
SIGMA, a St Vincent vessel, measures 47 metres on deck. She has a 11-metre beam and a draft measuring 6.3 metres. On the registers she's MMSI 377343000, call sign J8B6924, IMO 9235309. The Master's Mate Safety Initiative Network welcomes SIGMA — free to join, cruiser-run, and always on watch.
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Is SIGMA your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
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Live AIS position · Jun 9, 2026 08:33 UTC
Position
55.4032° N, 18.7271° E
Status
Under way (engine)
Speed
0.7 kn
Course
114°
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Joining the Safety Initiative Network doesn't just put SIGMA 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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
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About SIGMA
What kind of vessel is SIGMA?
SIGMA is a Search & Rescue flagged to Saint Vincent and the Grenadines.
Where was SIGMA last seen?
SIGMA was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is SIGMA's MMSI?
SIGMA's MMSI is 377343000. Call sign J8B6924. IMO 9235309.
How big is SIGMA?
SIGMA is about 47 m long, 11 m on the beam, drawing 6.3 m.
Is SIGMA on the Master's Mate Safety Initiative Network?
Not yet. If SIGMA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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