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
17HWA CHANG
MMSI 440508830
Not yet on Master's MateType
Other
Flag
KORFirst reported
Jun 2026
Last reported
Jun 2026
AIS reports
57
Hailing from South Korea, 17HWA CHANG is a boat. She's listed under MMSI 440508830. 17HWA CHANG is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is 17HWA CHANG 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
34.7449° N, 129.0326° E
Crossing the Sea of Japan? 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 17HWA CHANG 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 17HWA CHANG and switch it all on
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About 17HWA CHANG
What kind of vessel is 17HWA CHANG?
17HWA CHANG is a Other flagged to South Korea.
Where was 17HWA CHANG last seen?
17HWA CHANG was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is 17HWA CHANG's MMSI?
17HWA CHANG's MMSI is 440508830.
Is 17HWA CHANG on the Master's Mate Safety Initiative Network?
Not yet. If 17HWA CHANG is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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