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.
Towing
UL SAN 703
MMSI 440108490 · Call sign 048246
Not yet on Master's MateType
Towing
Flag
KORLength
28 m
Beam
8 m
Draft
4 m
Call sign
048246
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
3
UL SAN 703 is a working craft under the South Korean flag, 28 metres LOA. Her hull carries a beam of 8 m and a draft of 4 m. Find her under MMSI 440108490, call sign 048246. UL SAN 703 can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working boats
Built for boats that work — like UL SAN 703.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
35.1759° N, 129.2384° E
Working the Sea of Japan? You're never out there alone.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put UL SAN 703 on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim UL SAN 703 and switch it all on
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About UL SAN 703
What kind of vessel is UL SAN 703?
UL SAN 703 is a Towing flagged to South Korea.
Where was UL SAN 703 last seen?
UL SAN 703 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is UL SAN 703's MMSI?
UL SAN 703's MMSI is 440108490. Call sign 048246.
How big is UL SAN 703?
UL SAN 703 is about 28 m long, 8 m on the beam, drawing 4 m.
Is UL SAN 703 on the Master's Mate Safety Initiative Network?
Not yet. If UL SAN 703 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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