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
SONHOS
MMSI 368280880 · Call sign WDN4421
Not yet on Master's MateType
Sailing
Flag
USALength
14 m
Beam
8 m
Call sign
WDN4421
Official No.
DL2080AP
First reported
May 2026
Last reported
Jun 2026
AIS reports
86
SONHOS is an American sailing vessel, 14 metres on deck. Below, she has a beam of 8 m. Her papers read MMSI 368280880, call sign WDN4421. Claim SONHOS free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for cruisers
Sleep easy on the hook aboard SONHOS.
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 · Jun 3, 2026
Position
12.9580° N, 61.2357° 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.
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Joining the Safety Initiative Network doesn't just put SONHOS 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 SONHOS and switch it all on
Free to join · nothing to install to start · cancel anytime
About SONHOS
What kind of vessel is SONHOS?
SONHOS is a Sailing flagged to United States of America.
Where was SONHOS last seen?
SONHOS was last reported in the Caribbean in Jun 2026 on public AIS.
What is SONHOS's MMSI?
SONHOS's MMSI is 368280880. Call sign WDN4421.
How big is SONHOS?
SONHOS is about 14 m long, 8 m on the beam.
Is SONHOS on the Master's Mate Safety Initiative Network?
Not yet. If SONHOS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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