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.
Tug
DORIS
MMSI 263441683 · Call sign CSZU2
Not yet on Master's MateType
Tug
Flag
PRTLength
25 m
Beam
13 m
Draft
5.2 m
Call sign
CSZU2
IMO
9903595
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
DORIS, a working tug wearing Portuguese colours, measures 25 metres on deck. She carries a beam of 13 m and a 5.2-metre draft. Her registration reads MMSI 263441683, call sign CSZU2, IMO 9903595. DORIS earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.
Free forever · No credit card · for working boats
Built for boats that work — like DORIS.
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
Live AIS position · Jun 9, 2026 05:54 UTC
Position
41.1889° N, 8.6956° W
Status
Under way (engine)
Speed
0.0 kn
Course
259°
Destination
LEIXOES
ETA
02-15 19:30 UTC
Wherever DORIS roams, 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put DORIS 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 DORIS and switch it all on
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About DORIS
What kind of vessel is DORIS?
DORIS is a Tug flagged to Portugal.
Where was DORIS last seen?
DORIS was last reported in around 41°N 9°W in Jun 2026 on public AIS.
What is DORIS's MMSI?
DORIS's MMSI is 263441683. Call sign CSZU2. IMO 9903595.
How big is DORIS?
DORIS is about 25 m long, 13 m on the beam, drawing 5.2 m.
Is DORIS on the Master's Mate Safety Initiative Network?
Not yet. If DORIS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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