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
HORIZON THEANO
MMSI 636014285 · Call sign A8SS4
Not yet on Master's MateType
Tanker
Flag
LBRLength
183 m
Beam
32 m
Draft
8.5 m
Call sign
A8SS4
IMO
9407392
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in Liberia, HORIZON THEANO is an 183-metre tank vessel. HORIZON THEANO has 32 metres in the beam and a 8.5-metre draft. Find her under MMSI 636014285, call sign A8SS4, IMO 9407392. Bring HORIZON THEANO aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for commercial operators
Eyes on HORIZON THEANO, 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 9, 2026 21:15 UTC
Position
22.8330° S, 43.1470° W
Status
At anchor
Speed
0.2 kn
Course
48°
Destination
BR RIO
ETA
05-29 15:00 UTC
Wherever HORIZON THEANO 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 HORIZON THEANO 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 HORIZON THEANO and switch it all on
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About HORIZON THEANO
What kind of vessel is HORIZON THEANO?
HORIZON THEANO is a Tanker flagged to Liberia.
Where was HORIZON THEANO last seen?
HORIZON THEANO was last reported in around 23°S 43°W in Jun 2026 on public AIS.
What is HORIZON THEANO's MMSI?
HORIZON THEANO's MMSI is 636014285. Call sign A8SS4. IMO 9407392.
How big is HORIZON THEANO?
HORIZON THEANO is about 183 m long, 32 m on the beam, drawing 8.5 m.
Is HORIZON THEANO on the Master's Mate Safety Initiative Network?
Not yet. If HORIZON THEANO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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