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
SAPPHIRE TOWER
MMSI 636025439 · Call sign 5LXL6
Not yet on Master's MateType
Cargo
Flag
LBRLength
300 m
Beam
48 m
Draft
10.5 m
Call sign
5LXL6
IMO
9618290
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
76
SAPPHIRE TOWER is a Liberian merchant ship, 300 metres on deck. Below, she has a beam measuring 48 metres and a draft measuring 10.5 metres. She broadcasts as MMSI 636025439, call sign 5LXL6, IMO 9618290. Add SAPPHIRE TOWER to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card · for commercial operators
Eyes on SAPPHIRE TOWER, 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
38.1885° N, 125.1685° W
Wherever SAPPHIRE TOWER 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 SAPPHIRE TOWER 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 SAPPHIRE TOWER and switch it all on
Free to join · nothing to install to start · cancel anytime
About SAPPHIRE TOWER
What kind of vessel is SAPPHIRE TOWER?
SAPPHIRE TOWER is a Cargo flagged to Liberia.
Where was SAPPHIRE TOWER last seen?
SAPPHIRE TOWER was last reported in around 38°N 125°W in Jun 2026 on public AIS.
What is SAPPHIRE TOWER's MMSI?
SAPPHIRE TOWER's MMSI is 636025439. Call sign 5LXL6. IMO 9618290.
How big is SAPPHIRE TOWER?
SAPPHIRE TOWER is about 300 m long, 48 m on the beam, drawing 10.5 m.
Is SAPPHIRE TOWER on the Master's Mate Safety Initiative Network?
Not yet. If SAPPHIRE TOWER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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