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.
Other
MD23
MMSI 477996056 · Call sign MD23
Not yet on Master's MateType
Other
Flag
HKGLength
16 m
Beam
5 m
Call sign
MD23
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
21
On the Hong Kong registry, MD23 is a 16-metre boat. MD23 has a beam of 5 m. On AIS she shows as MMSI 477996056, call sign MD23. Claim MD23 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is MD23 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
Last known position · Jun 4, 2026
Position
22.3218° N, 114.1137° E
Crossing the South China Sea? 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put MD23 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 MD23 and switch it all on
Free to join · nothing to install to start · cancel anytime
About MD23
What kind of vessel is MD23?
MD23 is a Other flagged to Hong Kong S.A.R..
Where was MD23 last seen?
MD23 was last reported in the South China Sea in Jun 2026 on public AIS.
What is MD23's MMSI?
MD23's MMSI is 477996056. Call sign MD23.
How big is MD23?
MD23 is about 16 m long, 5 m on the beam.
Is MD23 on the Master's Mate Safety Initiative Network?
Not yet. If MD23 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.