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
D4
MMSI 512006552 · Call sign ZMZ2288
Not yet on Master's MateType
Passenger
Flag
NZLLength
17 m
Beam
7 m
Draft
1.6 m
Call sign
ZMZ2288
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
D4 is a New Zealand 17-metre excursion vessel. D4 has 7 metres in the beam and a 1.6-metre draft. On the registers she's MMSI 512006552, call sign ZMZ2288. D4 is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard D4 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
Live AIS position · Jun 9, 2026 03:50 UTC
Position
36.8275° S, 174.7441° E
Status
Under way (engine)
Speed
22.3 kn
Course
300°
Destination
BIRK_BAYS_AUCK
Wherever D4 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 D4 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 D4 and switch it all on
Free to join · nothing to install to start · cancel anytime
About D4
What kind of vessel is D4?
D4 is a Passenger flagged to New Zealand.
Where was D4 last seen?
D4 was last reported in around 37°S 175°E in Jun 2026 on public AIS.
What is D4's MMSI?
D4's MMSI is 512006552. Call sign ZMZ2288.
How big is D4?
D4 is about 17 m long, 7 m on the beam, drawing 1.6 m.
Is D4 on the Master's Mate Safety Initiative Network?
Not yet. If D4 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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