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.
Cargo
JOHN W BROWN
MMSI 303348100 · Call sign KHJL
Not yet on Master's MateType
Cargo
Flag
USALength
128 m
Beam
19 m
Draft
10.6 m
Call sign
KHJL
IMO
8862739
Official No.
242209
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
72
JOHN W BROWN is an ocean freighter registered in the United States, 128 metres LOA. Her hull carries a 19 m beam and a draft of 10.6 m. On the registers she's MMSI 303348100, call sign KHJL, IMO 8862739. JOHN W BROWN can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for commercial operators
Eyes on JOHN W BROWN, 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
39.2595° N, 76.5561° W
Transiting Chesapeake Bay? 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 JOHN W BROWN 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 W BROWN and switch it all on
Free to join · nothing to install to start · cancel anytime
About JOHN W BROWN
What kind of vessel is JOHN W BROWN?
JOHN W BROWN is a Cargo flagged to United States of America.
Where was JOHN W BROWN last seen?
JOHN W BROWN was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is JOHN W BROWN's MMSI?
JOHN W BROWN's MMSI is 303348100. Call sign KHJL. IMO 8862739.
How big is JOHN W BROWN?
JOHN W BROWN is about 128 m long, 19 m on the beam, drawing 10.6 m.
Is JOHN W BROWN on the Master's Mate Safety Initiative Network?
Not yet. If JOHN W BROWN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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