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.
Passenger
RIVER SAPPHIRE
MMSI 269057623 · Call sign 9HTS8
Not yet on Master's MateType
Passenger
Flag
CHELength
135 m
Beam
12 m
Draft
1.6 m
Call sign
9HTS8
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
57
RIVER SAPPHIRE is an excursion vessel under Swiss registration, 135 metres from stem to stern. RIVER SAPPHIRE has 12 metres in the beam and a 1.6-metre draft. Officially she's MMSI 269057623, call sign 9HTS8. Join RIVER SAPPHIRE to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard RIVER SAPPHIRE safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
49.3943° N, 8.4989° E
Wherever RIVER SAPPHIRE 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put RIVER SAPPHIRE on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
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 RIVER SAPPHIRE and switch it all on
Free to join · nothing to install to start · cancel anytime
About RIVER SAPPHIRE
What kind of vessel is RIVER SAPPHIRE?
RIVER SAPPHIRE is a Passenger flagged to Switzerland.
Where was RIVER SAPPHIRE last seen?
RIVER SAPPHIRE was last reported in around 49°N 8°E in Jun 2026 on public AIS.
What is RIVER SAPPHIRE's MMSI?
RIVER SAPPHIRE's MMSI is 269057623. Call sign 9HTS8.
How big is RIVER SAPPHIRE?
RIVER SAPPHIRE is about 135 m long, 12 m on the beam, drawing 1.6 m.
Is RIVER SAPPHIRE on the Master's Mate Safety Initiative Network?
Not yet. If RIVER SAPPHIRE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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