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
SEYMOUR SUN
MMSI 563145200 · Call sign 9V7557
Not yet on Master's MateType
Tanker
Flag
SGPLength
186 m
Beam
32 m
Draft
11.9 m
Call sign
9V7557
IMO
9911501
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
36
SEYMOUR SUN, a tank vessel registered in Singapore, measures 186 metres on deck. SEYMOUR SUN has a 32 m beam and a 11.9 m draft. She's on record as MMSI 563145200, call sign 9V7557, IMO 9911501. SEYMOUR SUN can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for commercial operators
Eyes on SEYMOUR SUN, 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 3, 2026
Position
29.2731° N, 93.7040° W
Transiting the Gulf of Mexico? 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 SEYMOUR SUN 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 SEYMOUR SUN and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEYMOUR SUN
What kind of vessel is SEYMOUR SUN?
SEYMOUR SUN is a Tanker flagged to Singapore.
Where was SEYMOUR SUN last seen?
SEYMOUR SUN was last reported in the Gulf of Mexico in Jun 2026 on public AIS.
What is SEYMOUR SUN's MMSI?
SEYMOUR SUN's MMSI is 563145200. Call sign 9V7557. IMO 9911501.
How big is SEYMOUR SUN?
SEYMOUR SUN is about 186 m long, 32 m on the beam, drawing 11.9 m.
Is SEYMOUR SUN on the Master's Mate Safety Initiative Network?
Not yet. If SEYMOUR SUN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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