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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.
Cargo
POTETO MARU
Cargo · Japan · last seen 35°N 135°E · Jun 2026 · MMSI 431009991 · Call sign JD4251
Not yet on Master's MateType
Cargo
Flag
JPNLength
95 m
Beam
13 m
Draft
4.2 m
Call sign
JD4251
IMO
9820049
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
12
POTETO MARU is a Japanese 95-metre cargo carrier. She carries a beam of 13 m and a 4.2-metre draft. She's on record as MMSI 431009991, call sign JD4251, IMO 9820049. POTETO MARU belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for commercial operators
Eyes on POTETO MARU, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Live AIS position · Jun 15, 2026 13:21 UTC
Position
34.6195° N, 135.3088° E
Status
At anchor
Speed
0.1 kn
Course
350°
Destination
JP UKB OFF
ETA
06-15 18:00 UTC
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put POTETO MARU on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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.
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About POTETO MARU
What kind of vessel is POTETO MARU?
POTETO MARU is a Cargo flagged to Japan.
Where was POTETO MARU last seen?
POTETO MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is POTETO MARU's MMSI?
POTETO MARU's MMSI is 431009991. Call sign JD4251. IMO 9820049.
How big is POTETO MARU?
POTETO MARU is about 95 m long, 13 m on the beam, drawing 4.2 m.
Is POTETO MARU on the Master's Mate Safety Initiative Network?
Not yet. If POTETO MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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