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.
Military
BUL NAVAL RSV 421
MMSI 207506400 · Call sign LZBQ
Not yet on Master's MateType
Military
Flag
BGRLength
68 m
Beam
17 m
Call sign
LZBQ
IMO
8112586
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
23
Hailing from Bulgaria, BUL NAVAL RSV 421 is a 68-metre vessel. She carries 17 metres in the beam. Look for MMSI 207506400, call sign LZBQ, IMO 8112586. BUL NAVAL RSV 421 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
Is BUL NAVAL RSV 421 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
43.1911° N, 27.9149° E
Crossing the Black Sea? 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put BUL NAVAL RSV 421 on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim BUL NAVAL RSV 421 and switch it all on
Free to join · nothing to install to start · cancel anytime
About BUL NAVAL RSV 421
What kind of vessel is BUL NAVAL RSV 421?
BUL NAVAL RSV 421 is a Military flagged to Bulgaria.
Where was BUL NAVAL RSV 421 last seen?
BUL NAVAL RSV 421 was last reported in the Black Sea in Jun 2026 on public AIS.
What is BUL NAVAL RSV 421's MMSI?
BUL NAVAL RSV 421's MMSI is 207506400. Call sign LZBQ. IMO 8112586.
How big is BUL NAVAL RSV 421?
BUL NAVAL RSV 421 is about 68 m long, 17 m on the beam.
Is BUL NAVAL RSV 421 on the Master's Mate Safety Initiative Network?
Not yet. If BUL NAVAL RSV 421 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.