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
COSTANZA M
MMSI 247258500 · Call sign IBGG
Not yet on Master's MateType
Tanker
Flag
ITALength
180 m
Beam
32 m
Draft
7.6 m
Call sign
IBGG
IMO
9436680
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
21
On the Italian registry, COSTANZA M is an 180-metre tank vessel. She has a beam of 32 m and a draft of 7.6 m. Look for MMSI 247258500, call sign IBGG, IMO 9436680. Claim COSTANZA M free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on COSTANZA M, 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 3, 2026
Position
43.3206° N, 4.9872° E
Transiting the Western Mediterranean? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put COSTANZA M 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 COSTANZA M and switch it all on
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About COSTANZA M
What kind of vessel is COSTANZA M?
COSTANZA M is a Tanker flagged to Italy.
Where was COSTANZA M last seen?
COSTANZA M was last reported in the Western Mediterranean in Jun 2026 on public AIS.
What is COSTANZA M's MMSI?
COSTANZA M's MMSI is 247258500. Call sign IBGG. IMO 9436680.
How big is COSTANZA M?
COSTANZA M is about 180 m long, 32 m on the beam, drawing 7.6 m.
Is COSTANZA M on the Master's Mate Safety Initiative Network?
Not yet. If COSTANZA M is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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