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.
Industrial Vessel
OAG RESPONDER
MMSI 366598000 · Call sign WDP9737
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
64 m
Beam
13.7 m
Draft
5.2 m
Call sign
WDP9737
IMO
9044645
Official No.
983114
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
73
On the American registry, OAG RESPONDER is a 64-metre cargo vessel. She's built with a beam measuring 13.7 metres and a 5.2-metre draft. Her registration reads MMSI 366598000, call sign WDP9737, IMO 9044645. Join OAG RESPONDER to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on OAG RESPONDER, 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 4, 2026
Position
38.1334° N, 76.5324° 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 OAG RESPONDER 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 OAG RESPONDER and switch it all on
Free to join · nothing to install to start · cancel anytime
About OAG RESPONDER
What kind of vessel is OAG RESPONDER?
OAG RESPONDER is a Industrial Vessel flagged to United States of America.
Where was OAG RESPONDER last seen?
OAG RESPONDER was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is OAG RESPONDER's MMSI?
OAG RESPONDER's MMSI is 366598000. Call sign WDP9737. IMO 9044645.
How big is OAG RESPONDER?
OAG RESPONDER is about 64 m long, 13.7 m on the beam, drawing 5.2 m.
Is OAG RESPONDER on the Master's Mate Safety Initiative Network?
Not yet. If OAG RESPONDER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.