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.
Tanker
OTOWA
Tanker · last seen 35°N 135°E · Jun 2026 · MMSI 431023752 · Call sign JD5348
Not yet on Master's MateType
Tanker
Length
64 m
Beam
10 m
Draft
3 m
Call sign
JD5348
IMO
1022902
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
OTOWA is a 64-metre tank ship. She's built with a beam of 10 m and a 3-metre draft. She's listed under MMSI 431023752, call sign JD5348, IMO 1022902. Give OTOWA the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for commercial operators
Eyes on OTOWA, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 15, 2026 11:24 UTC
Position
34.6743° N, 135.2169° E
Status
Moored
Speed
0.0 kn
Course
291°
Destination
>JP UKB PE KITANAKA
ETA
06-14 12:30 UTC
Transiting 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 OTOWA 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.
Claim OTOWA and switch it all on
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About OTOWA
What kind of vessel is OTOWA?
OTOWA is a Tanker.
Where was OTOWA last seen?
OTOWA was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is OTOWA's MMSI?
OTOWA's MMSI is 431023752. Call sign JD5348. IMO 1022902.
How big is OTOWA?
OTOWA is about 64 m long, 10 m on the beam, drawing 3 m.
Is OTOWA on the Master's Mate Safety Initiative Network?
Not yet. If OTOWA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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