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.
Dredging
ROCKMATE
MMSI 230025060 · Call sign OJ6399
Not yet on Master's MateType
Dredging
Flag
FINLength
42 m
Beam
18 m
Draft
5 m
Call sign
OJ6399
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
27
ROCKMATE is a Finnish work boat — 42 metres overall. She has a 18 m beam and a draft measuring 5 metres. On AIS she shows as MMSI 230025060, call sign OJ6399. ROCKMATE belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Built for boats that work — like ROCKMATE.
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 2, 2026
Position
60.1635° N, 1.1583° W
Working the North Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put ROCKMATE 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 ROCKMATE and switch it all on
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About ROCKMATE
What kind of vessel is ROCKMATE?
ROCKMATE is a Dredging flagged to Finland.
Where was ROCKMATE last seen?
ROCKMATE was last reported in the North Sea in Jun 2026 on public AIS.
What is ROCKMATE's MMSI?
ROCKMATE's MMSI is 230025060. Call sign OJ6399.
How big is ROCKMATE?
ROCKMATE is about 42 m long, 18 m on the beam, drawing 5 m.
Is ROCKMATE on the Master's Mate Safety Initiative Network?
Not yet. If ROCKMATE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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