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.
Cargo
SPRING SWEETBRIER
MMSI 431781000 · Call sign 7KKO
Not yet on Master's MateType
Cargo
Flag
JPNLength
320 m
Beam
54 m
Draft
10.7 m
Call sign
7KKO
IMO
9374143
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
8
SPRING SWEETBRIER is a merchant ship under the Japanese flag, 320 metres on deck. Her hull carries a beam of 54 m and a draft measuring 10.7 metres. She's listed under MMSI 431781000, call sign 7KKO, IMO 9374143. Claim SPRING SWEETBRIER free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on SPRING SWEETBRIER, 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
Last known position · Jun 4, 2026
Position
38.7098° N, 142.0961° E
Wherever SPRING SWEETBRIER roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SPRING SWEETBRIER 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 SPRING SWEETBRIER and switch it all on
Free to join · nothing to install to start · cancel anytime
About SPRING SWEETBRIER
What kind of vessel is SPRING SWEETBRIER?
SPRING SWEETBRIER is a Cargo flagged to Japan.
Where was SPRING SWEETBRIER last seen?
SPRING SWEETBRIER was last reported in around 39°N 142°E in Jun 2026 on public AIS.
What is SPRING SWEETBRIER's MMSI?
SPRING SWEETBRIER's MMSI is 431781000. Call sign 7KKO. IMO 9374143.
How big is SPRING SWEETBRIER?
SPRING SWEETBRIER is about 320 m long, 54 m on the beam, drawing 10.7 m.
Is SPRING SWEETBRIER on the Master's Mate Safety Initiative Network?
Not yet. If SPRING SWEETBRIER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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