sensors Mode-S transponder

4D211B

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-VJS · BOMBARDIER BD-700 Global 6000/6500

Hex
4D211B
Octal
23220433
Decimal
5,054,747
Country
MT
Tail
9H-VJS
Type
GLEX
No current signal · last broadcast 2h ago
Flights observed
15
Distinct callsigns
1
Country
MT
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4D211B.

Country allocation

The ICAO 24-bit address 4D211B falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
VJT929 - 15 2026-04-18

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-18 VJT929 - Apr 18, 13:50 UTCApr 18, 17:05 UTC3h 15m
2026-04-18 VJT929 - Apr 18, 11:35 UTCApr 18, 12:20 UTC45m
2026-04-17 VJT929 - Apr 17, 15:20 UTCApr 17, 16:00 UTC40m
2026-04-17 VJT929 - Apr 17, 15:05 UTCApr 17, 15:15 UTC10m
2026-04-17 VJT929 - Apr 17, 07:20 UTCApr 17, 08:10 UTC50m
2026-04-17 VJT929 - Apr 17, 06:30 UTCApr 17, 07:15 UTC45m
2026-04-16 VJT929 LTN → BRU Apr 16, 12:14 UTCApr 16, 13:00 UTC45m
2026-04-15 VJT929 - Apr 15, 19:05 UTCApr 15, 19:25 UTC20m
2026-04-15 VJT929 - Apr 15, 17:50 UTCApr 15, 19:00 UTC1h 10m
2026-04-15 VJT929 - Apr 15, 11:00 UTCApr 15, 11:40 UTC40m
2026-04-15 VJT929 - Apr 15, 09:00 UTCApr 15, 10:55 UTC1h 55m
2026-04-15 VJT929 - Apr 15, 07:50 UTCApr 15, 08:55 UTC1h 5m
2026-04-14 VJT929 - Apr 14, 07:10 UTCApr 14, 08:45 UTC1h 35m
2026-04-14 VJT929 - Apr 14, 05:35 UTCApr 14, 07:10 UTC1h 35m
2026-04-13 VJT929 - Apr 13, 05:35 UTCApr 13, 07:15 UTC1h 40m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the 9H-VJS page for operator, model, and routing details .

Mode-S 4D211B frequently asked

What is Mode-S code 4D211B?
4D211B is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VJS.
Where is Mode-S 4D211B registered?
Mode-S code 4D211B is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D211B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D211B, octal 23220433, decimal 5,054,747.
What flights does 4D211B operate?
Mode-S 4D211B has broadcast 1 distinct callsign, including VJT929.