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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.
Diving
USV CHALLENGER
MMSI 259042800 · Call sign JXXM
Not yet on Master's MateType
Diving
Flag
NORLength
27 m
Beam
8 m
Draft
5 m
Call sign
JXXM
IMO
1031733
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
USV CHALLENGER flies the Norwegian flag — a 27-metre vessel. She carries 8 metres in the beam and a 5 m draft. On AIS she appears as MMSI 259042800, call sign JXXM, IMO 1031733. USV CHALLENGER is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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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.
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Live AIS position · Jun 9, 2026 13:24 UTC
Position
59.4219° N, 5.2551° E
Status
Under way (engine)
Speed
0.0 kn
Course
338°
Destination
KILLINGOY
ETA
06-08 16:30 UTC
Crossing the North Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put USV CHALLENGER 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.
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About USV CHALLENGER
What kind of vessel is USV CHALLENGER?
USV CHALLENGER is a Diving flagged to Norway.
Where was USV CHALLENGER last seen?
USV CHALLENGER was last reported in the North Sea in Jun 2026 on public AIS.
What is USV CHALLENGER's MMSI?
USV CHALLENGER's MMSI is 259042800. Call sign JXXM. IMO 1031733.
How big is USV CHALLENGER?
USV CHALLENGER is about 27 m long, 8 m on the beam, drawing 5 m.
Is USV CHALLENGER on the Master's Mate Safety Initiative Network?
Not yet. If USV CHALLENGER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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