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
OPTIMIST
MMSI 244740124 · Call sign PH6528
Not yet on Master's MateType
Dredging
Flag
NLDLength
55 m
Beam
8 m
Draft
1.6 m
Call sign
PH6528
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
75
Out of the Netherlands, OPTIMIST is a 55-metre working craft. She has a beam of 8 m and a draft of 1.6 m. On AIS she shows as MMSI 244740124, call sign PH6528. It's free to add OPTIMIST to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working boats
Built for boats that work — like OPTIMIST.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Live AIS position · Jun 9, 2026 06:23 UTC
Position
51.9630° N, 4.0799° E
Status
Restricted manoeuvrability
Speed
7.2 kn
Course
264°
Destination
VEERSE MEER
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Joining the Safety Initiative Network doesn't just put OPTIMIST 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 OPTIMIST and switch it all on
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About OPTIMIST
What kind of vessel is OPTIMIST?
OPTIMIST is a Dredging flagged to Netherlands.
Where was OPTIMIST last seen?
OPTIMIST was last reported in the North Sea in Jun 2026 on public AIS.
What is OPTIMIST's MMSI?
OPTIMIST's MMSI is 244740124. Call sign PH6528.
How big is OPTIMIST?
OPTIMIST is about 55 m long, 8 m on the beam, drawing 1.6 m.
Is OPTIMIST on the Master's Mate Safety Initiative Network?
Not yet. If OPTIMIST is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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