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
ONE HELSINKI
MMSI 431350000 · Call sign 7KSP
Not yet on Master's MateType
Cargo
Flag
JPNLength
335 m
Beam
46 m
Draft
14.2 m
Call sign
7KSP
IMO
9588081
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
32
ONE HELSINKI, a Japanese cargo ship, measures 335 metres on deck. ONE HELSINKI has a 46 m beam and a 14.2 m draft. She's listed under MMSI 431350000, call sign 7KSP, IMO 9588081. Add ONE HELSINKI to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card · for commercial operators
Eyes on ONE HELSINKI, 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
51.2471° N, 2.0967° E
Transiting the North Sea? 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 ONE HELSINKI 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 ONE HELSINKI and switch it all on
Free to join · nothing to install to start · cancel anytime
About ONE HELSINKI
What kind of vessel is ONE HELSINKI?
ONE HELSINKI is a Cargo flagged to Japan.
Where was ONE HELSINKI last seen?
ONE HELSINKI was last reported in the North Sea in Jun 2026 on public AIS.
What is ONE HELSINKI's MMSI?
ONE HELSINKI's MMSI is 431350000. Call sign 7KSP. IMO 9588081.
How big is ONE HELSINKI?
ONE HELSINKI is about 335 m long, 46 m on the beam, drawing 14.2 m.
Is ONE HELSINKI on the Master's Mate Safety Initiative Network?
Not yet. If ONE HELSINKI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.