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)
Portofino 1
MMSI 366968340 · Call sign WDB9028
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
19.3 m
Beam
7.3 m
Draft
2.3 m
Call sign
WDB9028
Official No.
1157340
AIS reports
1
Registered in the United States, Portofino 1 is a 19.3-metre passenger vessel. She carries 7.3 metres in the beam and a 2.3 m draft. She broadcasts as MMSI 366968340, call sign WDB9028. The Master's Mate Safety Initiative Network welcomes Portofino 1 — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Portofino 1 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 Portofino 1 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 Portofino 1 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 Portofino 1 and switch it all on
Free to join · nothing to install to start · cancel anytime
About Portofino 1
What kind of vessel is Portofino 1?
Portofino 1 is a Passenger (Inspected) flagged to United States of America.
What is Portofino 1's MMSI?
Portofino 1's MMSI is 366968340. Call sign WDB9028.
How big is Portofino 1?
Portofino 1 is about 19.3 m long, 7.3 m on the beam, drawing 2.3 m.
Is Portofino 1 on the Master's Mate Safety Initiative Network?
Not yet. If Portofino 1 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.