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
POTOMAC EXPRESS
MMSI 366418000 · Call sign WDM2204
Not yet on Master's MateType
Cargo
Flag
USALength
306 m
Beam
40 m
Draft
13.1 m
Call sign
WDM2204
IMO
9349526
Official No.
1026595
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
88
POTOMAC EXPRESS is a cargo ship flying the flag of the United States, 306 metres in length. She's built with 40 metres in the beam and a 13.1 m draft. Her registration reads MMSI 366418000, call sign WDM2204, IMO 9349526. Add POTOMAC EXPRESS to the Master's Mate Safety Initiative Network and share the water with a fleet that's paying attention — free.
Free forever · No credit card · for commercial operators
Eyes on POTOMAC EXPRESS, 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 13:56 UTC
Position
33.6575° N, 118.2319° W
Status
Under way (engine)
Speed
9.7 kn
Course
328°
Destination
USLAX
ETA
06-09 14:00 UTC
Transiting off Southern California? 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 POTOMAC EXPRESS 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 POTOMAC EXPRESS and switch it all on
Free to join · nothing to install to start · cancel anytime
About POTOMAC EXPRESS
What kind of vessel is POTOMAC EXPRESS?
POTOMAC EXPRESS is a Cargo flagged to United States of America.
Where was POTOMAC EXPRESS last seen?
POTOMAC EXPRESS was last reported in off Southern California in Jun 2026 on public AIS.
What is POTOMAC EXPRESS's MMSI?
POTOMAC EXPRESS's MMSI is 366418000. Call sign WDM2204. IMO 9349526.
How big is POTOMAC EXPRESS?
POTOMAC EXPRESS is about 306 m long, 40 m on the beam, drawing 13.1 m.
Is POTOMAC EXPRESS on the Master's Mate Safety Initiative Network?
Not yet. If POTOMAC EXPRESS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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