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.
High-speed Craft
SYLVKALLEN
MMSI 257345400 · Call sign JWMF
Not yet on Master's MateType
High-speed Craft
Flag
NORLength
17 m
Beam
5 m
Draft
2 m
Call sign
JWMF
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
63
SYLVKALLEN, a Norwegian passenger ferry, measures 17 metres on deck. She has 5 metres in the beam and a draft of 2 m. Find her under MMSI 257345400, call sign JWMF. SYLVKALLEN 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 SYLVKALLEN 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 11:28 UTC
Position
62.1523° N, 6.5800° E
Status
Under way (engine)
Speed
8.7 kn
Course
158°
Destination
CHARTER 90720172
ETA
06-02 06:00 UTC
Sailing the Norwegian coast? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SYLVKALLEN 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 SYLVKALLEN and switch it all on
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About SYLVKALLEN
What kind of vessel is SYLVKALLEN?
SYLVKALLEN is a High-speed Craft flagged to Norway.
Where was SYLVKALLEN last seen?
SYLVKALLEN was last reported in the Norwegian coast in Jun 2026 on public AIS.
What is SYLVKALLEN's MMSI?
SYLVKALLEN's MMSI is 257345400. Call sign JWMF.
How big is SYLVKALLEN?
SYLVKALLEN is about 17 m long, 5 m on the beam, drawing 2 m.
Is SYLVKALLEN on the Master's Mate Safety Initiative Network?
Not yet. If SYLVKALLEN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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