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.
Recreational
Ruby June
MMSI 368394870 · Call sign WDP8937
Not yet on Master's MateType
Recreational
Flag
USALength
11.9 m
Beam
6.7 m
Draft
2.4 m
Call sign
WDP8937
Official No.
1352064
AIS reports
1
Out of the United States, Ruby June is an 11.9-metre recreational boat. She carries a beam of 6.7 m and a 2.4-metre draft. Officially she's MMSI 368394870, call sign WDP8937. Add Ruby June 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 recreational captains
Keep Ruby June looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 03:36 UTC
Position
41.1888° N, 71.5734° W
Status
Under way (engine)
Speed
0.7 kn
Course
147°
Cruising off the U.S. East Coast? 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Ruby June on the map. It hands you the full bridge:
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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Ruby June and switch it all on
Free to join · nothing to install to start · cancel anytime
About Ruby June
What kind of vessel is Ruby June?
Ruby June is a Recreational flagged to United States of America.
Where was Ruby June last seen?
Ruby June was last reported in off the U.S. East Coast on public AIS.
What is Ruby June's MMSI?
Ruby June's MMSI is 368394870. Call sign WDP8937.
How big is Ruby June?
Ruby June is about 11.9 m long, 6.7 m on the beam, drawing 2.4 m.
Is Ruby June on the Master's Mate Safety Initiative Network?
Not yet. If Ruby June is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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