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.
Tug
MAMMUT
MMSI 276865000 · Call sign ESLW
Not yet on Master's MateType
Tug
Flag
ESTLength
22 m
Beam
5 m
Draft
3.5 m
Call sign
ESLW
IMO
8989953
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
83
MAMMUT, a working tug registered in Estonia, measures 22 metres on deck. She carries a beam of 5 m and a 3.5-metre draft. On AIS she appears as MMSI 276865000, call sign ESLW, IMO 8989953. Bring MAMMUT 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 MAMMUT.
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
Last known position · Jun 4, 2026
Position
53.5410° N, 9.8963° E
Working the Baltic Sea? You're never out there alone.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put MAMMUT 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 MAMMUT and switch it all on
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About MAMMUT
What kind of vessel is MAMMUT?
MAMMUT is a Tug flagged to Estonia.
Where was MAMMUT last seen?
MAMMUT was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is MAMMUT's MMSI?
MAMMUT's MMSI is 276865000. Call sign ESLW. IMO 8989953.
How big is MAMMUT?
MAMMUT is about 22 m long, 5 m on the beam, drawing 3.5 m.
Is MAMMUT on the Master's Mate Safety Initiative Network?
Not yet. If MAMMUT is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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