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.
Tanker
SPRING S
MMSI 249821000 · Call sign 9HA6396
Not yet on Master's MateType
Tanker
Flag
MLTLength
129 m
Beam
20 m
Draft
5.7 m
Call sign
9HA6396
IMO
9416812
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
SPRING S, a tank ship flying the flag of Malta, measures 129 metres on deck. Her hull carries a 20-metre beam and a draft of 5.7 m. Officially she's MMSI 249821000, call sign 9HA6396, IMO 9416812. SPRING S is welcome on the Master's Mate Safety Initiative Network — free situational awareness and a watch network shared by vessels of every size.
Free forever · No credit card · for commercial operators
Eyes on SPRING S, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
44.3917° N, 8.8749° E
Transiting the Ligurian Sea? 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SPRING S on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 SPRING S and switch it all on
Free to join · nothing to install to start · cancel anytime
About SPRING S
What kind of vessel is SPRING S?
SPRING S is a Tanker flagged to Malta.
Where was SPRING S last seen?
SPRING S was last reported in the Ligurian Sea in Jun 2026 on public AIS.
What is SPRING S's MMSI?
SPRING S's MMSI is 249821000. Call sign 9HA6396. IMO 9416812.
How big is SPRING S?
SPRING S is about 129 m long, 20 m on the beam, drawing 5.7 m.
Is SPRING S on the Master's Mate Safety Initiative Network?
Not yet. If SPRING S 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.