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

RUBY TOWER

MMSI 636025440 · Call sign 5LXL7

Not yet on Master's Mate

Type

Cargo

Flag

LBR

Length

300 m

Beam

48 m

Draft

11.8 m

Call sign

5LXL7

IMO

9618276

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

RUBY TOWER is a freighter under Liberian registration, 300 metres long. Her hull carries a beam measuring 48 metres and a draft of 11.8 m. She broadcasts as MMSI 636025440, call sign 5LXL7, IMO 9618276. RUBY TOWER 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 RUBY 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 4, 2026

Track RUBY TOWER live — sign up free →

Position

33.7605° N, 118.2734° W

Transiting off Southern California? 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 RUBY 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 RUBY TOWER and switch it all on

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About RUBY TOWER

What kind of vessel is RUBY TOWER?

RUBY TOWER is a Cargo flagged to Liberia.

Where was RUBY TOWER last seen?

RUBY TOWER was last reported in off Southern California in Jun 2026 on public AIS.

What is RUBY TOWER's MMSI?

RUBY TOWER's MMSI is 636025440. Call sign 5LXL7. IMO 9618276.

How big is RUBY TOWER?

RUBY TOWER is about 300 m long, 48 m on the beam, drawing 11.8 m.

Is RUBY TOWER on the Master's Mate Safety Initiative Network?

Not yet. If RUBY TOWER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).