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.
Sailing
S/Y ALTAIA
MMSI 211684600 · Call sign DPMS
Not yet on Master's MateType
Sailing
Flag
DEULength
20 m
Beam
5 m
Call sign
DPMS
First reported
Apr 2026
Last reported
Apr 2026
AIS reports
85
Registered in Germany, S/Y ALTAIA is a 20-metre sailboat. She has a beam of 5 m. She's listed under MMSI 211684600, call sign DPMS. S/Y ALTAIA is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for cruisers
Sleep easy on the hook aboard S/Y ALTAIA.
GPS-precise anchor-drag alarms, ETA-calibrated weather routing, worldwide charts, and cruisers watching each other’s backs.
Set her anchor watch — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Apr 23, 2026
Position
17.0128° N, 61.7769° W
Sailing the Caribbean? 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 cruisers
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put S/Y ALTAIA 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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Claim S/Y ALTAIA and switch it all on
Free to join · nothing to install to start · cancel anytime
About S/Y ALTAIA
What kind of vessel is S/Y ALTAIA?
S/Y ALTAIA is a Sailing flagged to Germany.
Where was S/Y ALTAIA last seen?
S/Y ALTAIA was last reported in the Caribbean in Apr 2026 on public AIS.
What is S/Y ALTAIA's MMSI?
S/Y ALTAIA's MMSI is 211684600. Call sign DPMS.
How big is S/Y ALTAIA?
S/Y ALTAIA is about 20 m long, 5 m on the beam.
Is S/Y ALTAIA on the Master's Mate Safety Initiative Network?
Not yet. If S/Y ALTAIA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.