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.
Cargo
ULTRAMARINE
MMSI 275548000 · Call sign YLSH
Not yet on Master's MateType
Cargo
Flag
LVALength
89 m
Beam
12 m
Draft
3.5 m
Call sign
YLSH
IMO
1029041
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in Latvia, ULTRAMARINE is an 89-metre freighter. Her hull carries a 12-metre beam and a draft of 3.5 m. Her papers read MMSI 275548000, call sign YLSH, IMO 1029041. ULTRAMARINE can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for commercial operators
Eyes on ULTRAMARINE, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
26.1084° N, 80.0786° W
Wherever ULTRAMARINE 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 · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put ULTRAMARINE on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 ULTRAMARINE and switch it all on
Free to join · nothing to install to start · cancel anytime
About ULTRAMARINE
What kind of vessel is ULTRAMARINE?
ULTRAMARINE is a Cargo flagged to Latvia.
Where was ULTRAMARINE last seen?
ULTRAMARINE was last reported in around 26°N 80°W in Jun 2026 on public AIS.
What is ULTRAMARINE's MMSI?
ULTRAMARINE's MMSI is 275548000. Call sign YLSH. IMO 1029041.
How big is ULTRAMARINE?
ULTRAMARINE is about 89 m long, 12 m on the beam, drawing 3.5 m.
Is ULTRAMARINE on the Master's Mate Safety Initiative Network?
Not yet. If ULTRAMARINE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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