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.
Vessel
HAN CHANG 1
last seen 37°N 127°E · Jun 2026 · MMSI 440001550 · Call sign 101H C1
Not yet on Master's MateCall sign
101H C1
IMO
171829
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
11
HAN CHANG 1 is a vessel. On the registers she's MMSI 440001550, call sign 101H C1. Put HAN CHANG 1 on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
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Is HAN CHANG 1 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
Live AIS position · Jun 15, 2026 18:37 UTC
Position
37.4513° N, 126.5938° E
Status
Under way (engine)
Speed
0.0 kn
Course
68°
Destination
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Crossing the Yellow Sea? 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 HAN CHANG 1 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 HAN CHANG 1 and switch it all on
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About HAN CHANG 1
What kind of vessel is HAN CHANG 1?
HAN CHANG 1 is a vessel.
Where was HAN CHANG 1 last seen?
HAN CHANG 1 was last reported in the Yellow Sea in Jun 2026 on public AIS.
What is HAN CHANG 1's MMSI?
HAN CHANG 1's MMSI is 440001550. Call sign 101H C1. IMO 171829.
Is HAN CHANG 1 on the Master's Mate Safety Initiative Network?
Not yet. If HAN CHANG 1 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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