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.
Passenger (Inspected)
Sea Level
MMSI 367520980 · Call sign WDG2955
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
62.5 m
Beam
15.2 m
Draft
3.8 m
Call sign
WDG2955
Official No.
1237503
AIS reports
1
Sea Level is a passenger vessel sailing under the American flag, 62.5 metres in length. She's built with a beam of 15.2 m and a 3.8 m draft. Officially she's MMSI 367520980, call sign WDG2955. Keep every soul aboard Sea Level covered with the free Master's Mate Safety Initiative Network.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Sea Level safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Sea Level 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Sea Level on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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 Sea Level and switch it all on
Free to join · nothing to install to start · cancel anytime
About Sea Level
What kind of vessel is Sea Level?
Sea Level is a Passenger (Inspected) flagged to United States of America.
What is Sea Level's MMSI?
Sea Level's MMSI is 367520980. Call sign WDG2955.
How big is Sea Level?
Sea Level is about 62.5 m long, 15.2 m on the beam, drawing 3.8 m.
Is Sea Level on the Master's Mate Safety Initiative Network?
Not yet. If Sea Level is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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