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.
Vessel
SB 33
MMSI 244870487 · Call sign PC5987
Not yet on Master's MateFlag
NLDLength
15 m
Beam
3 m
Call sign
PC5987
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
SB 33, a boat on the the Netherlands registry, measures 15 metres on deck. She has a beam measuring 3 metres. Her papers read MMSI 244870487, call sign PC5987. Give SB 33 the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card
Is SB 33 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 12:23 UTC
Position
52.3833° N, 4.8812° E
Status
Moored
Speed
3.8 kn
Course
19°
Destination
00000 00000
Crossing 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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SB 33 on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SB 33 and switch it all on
Free to join · nothing to install to start · cancel anytime
About SB 33
What kind of vessel is SB 33?
SB 33 is a vessel flagged to Netherlands.
Where was SB 33 last seen?
SB 33 was last reported in the North Sea in Jun 2026 on public AIS.
What is SB 33's MMSI?
SB 33's MMSI is 244870487. Call sign PC5987.
How big is SB 33?
SB 33 is about 15 m long, 3 m on the beam.
Is SB 33 on the Master's Mate Safety Initiative Network?
Not yet. If SB 33 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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