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
THERESIA
MMSI 244730945 · Call sign PD4233
Not yet on Master's MateType
Cargo
Flag
NLDLength
85 m
Beam
10 m
Draft
1 m
Call sign
PD4233
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
On the Dutch registry, THERESIA is an 85-metre cargo carrier. She's built with 10 metres in the beam and a 1-metre draft. Find her under MMSI 244730945, call sign PD4233. Add THERESIA to the Master's Mate Safety Initiative Network and share the water with a fleet that's paying attention — free.
Free forever · No credit card · for commercial operators
Eyes on THERESIA, 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
Live AIS position · Jun 9, 2026 15:49 UTC
Position
51.7337° N, 5.2499° E
Status
Under way (engine)
Speed
9.5 kn
Course
84°
Destination
ROTTERDAM
ETA
09-18 10:02 UTC
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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put THERESIA 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 THERESIA and switch it all on
Free to join · nothing to install to start · cancel anytime
About THERESIA
What kind of vessel is THERESIA?
THERESIA is a Cargo flagged to Netherlands.
Where was THERESIA last seen?
THERESIA was last reported in the North Sea in Jun 2026 on public AIS.
What is THERESIA's MMSI?
THERESIA's MMSI is 244730945. Call sign PD4233.
How big is THERESIA?
THERESIA is about 85 m long, 10 m on the beam, drawing 1 m.
Is THERESIA on the Master's Mate Safety Initiative Network?
Not yet. If THERESIA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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