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
BOSTON
MMSI 244670638 · Call sign PB5548
Not yet on Master's MateType
Tanker
Flag
NLDLength
110 m
Beam
12 m
Draft
1.6 m
Call sign
PB5548
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
60
BOSTON, a tanker registered in the Netherlands, measures 110 metres on deck. Below, she has a beam measuring 12 metres and a draft of 1.6 m. On the registers she's MMSI 244670638, call sign PB5548. BOSTON can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for commercial operators
Eyes on BOSTON, 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
Live AIS position · Jun 9, 2026 09:24 UTC
Position
50.8558° N, 7.0094° E
Status
Under way (engine)
Speed
4.8 kn
Course
223°
Destination
KEHL RHEINHAFEN TOT
ETA
06-12 11:04 UTC
Wherever BOSTON roams, 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 BOSTON 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 BOSTON and switch it all on
Free to join · nothing to install to start · cancel anytime
About BOSTON
What kind of vessel is BOSTON?
BOSTON is a Tanker flagged to Netherlands.
Where was BOSTON last seen?
BOSTON was last reported in around 51°N 4°E in Jun 2026 on public AIS.
What is BOSTON's MMSI?
BOSTON's MMSI is 244670638. Call sign PB5548.
How big is BOSTON?
BOSTON is about 110 m long, 12 m on the beam, drawing 1.6 m.
Is BOSTON on the Master's Mate Safety Initiative Network?
Not yet. If BOSTON is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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