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.
Vessel
Iohann Mahmastal
MMSI 273110100
Not yet on Master's MateFlag
RUSLength
131.6 m
IMO
8603406
AIS reports
2
Iohann Mahmastal is a Russian 131.6-metre vessel. Her registration reads MMSI 273110100, IMO 8603406. Join Iohann Mahmastal to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is Iohann Mahmastal 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.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Iohann Mahmastal roams, 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Iohann Mahmastal 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.
Claim Iohann Mahmastal and switch it all on
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About Iohann Mahmastal
What kind of vessel is Iohann Mahmastal?
Iohann Mahmastal is a vessel flagged to Russia.
What is Iohann Mahmastal's MMSI?
Iohann Mahmastal's MMSI is 273110100. IMO 8603406.
How big is Iohann Mahmastal?
Iohann Mahmastal is about 131.6 m long.
Is Iohann Mahmastal on the Master's Mate Safety Initiative Network?
Not yet. If Iohann Mahmastal is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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