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.
Vessel
SURFACE INTERVAL
MMSI 367580570 · Call sign WDN5944
Not yet on Master's MateFlag
USACall sign
WDN5944
Official No.
1177691
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
88
SURFACE INTERVAL is an American boat. On the registers she's MMSI 367580570, call sign WDN5944. Join SURFACE INTERVAL to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is SURFACE INTERVAL your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 06:59 UTC
Position
35.3118° S, 174.1231° E
Status
Under way (engine)
Speed
0.0 kn
Course
270°
Wherever SURFACE INTERVAL 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SURFACE INTERVAL 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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SURFACE INTERVAL and switch it all on
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About SURFACE INTERVAL
What kind of vessel is SURFACE INTERVAL?
SURFACE INTERVAL is a vessel flagged to United States of America.
Where was SURFACE INTERVAL last seen?
SURFACE INTERVAL was last reported in around 35°S 174°E in Jun 2026 on public AIS.
What is SURFACE INTERVAL's MMSI?
SURFACE INTERVAL's MMSI is 367580570. Call sign WDN5944.
Is SURFACE INTERVAL on the Master's Mate Safety Initiative Network?
Not yet. If SURFACE INTERVAL is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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