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
JOHN T. ESSBERGER
MMSI 255891000 · Call sign CQWX
Not yet on Master's MateType
Tanker
Flag
PRTLength
120 m
Beam
18 m
Draft
6 m
Call sign
CQWX
IMO
9939797
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
63
JOHN T. ESSBERGER is a Portuguese tank vessel, 120 metres LOA. Her hull carries a beam measuring 18 metres and a draft of 6 m. On AIS she shows as MMSI 255891000, call sign CQWX, IMO 9939797. Big or small, every hull benefits from the free Master's Mate Safety Initiative Network — JOHN T. ESSBERGER included.
Free forever · No credit card · for commercial operators
Eyes on JOHN T. ESSBERGER, 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
54.2877° N, 0.2779° E
Transiting the North Sea? 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 JOHN T. ESSBERGER 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 JOHN T. ESSBERGER and switch it all on
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About JOHN T. ESSBERGER
What kind of vessel is JOHN T. ESSBERGER?
JOHN T. ESSBERGER is a Tanker flagged to Portugal.
Where was JOHN T. ESSBERGER last seen?
JOHN T. ESSBERGER was last reported in the North Sea in Jun 2026 on public AIS.
What is JOHN T. ESSBERGER's MMSI?
JOHN T. ESSBERGER's MMSI is 255891000. Call sign CQWX. IMO 9939797.
How big is JOHN T. ESSBERGER?
JOHN T. ESSBERGER is about 120 m long, 18 m on the beam, drawing 6 m.
Is JOHN T. ESSBERGER on the Master's Mate Safety Initiative Network?
Not yet. If JOHN T. ESSBERGER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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