sensors Mode-S transponder

4D2131

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2131
Octal
23220461
Decimal
5,054,769
Country
MT
Tail
9H-VJV
Type
GLEX
No current signal · last broadcast 1d ago
Flights observed
58
Distinct callsigns
3
Country
MT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4D2131.

Country allocation

The ICAO 24-bit address 4D2131 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 3 distinct

Callsign Airline Flights Last seen
VJT957 - 53 2026-05-28
VJT773G - 4 2026-04-17
VJT274 - 1 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 VJT957 - May 28, 17:00 UTCMay 28, 17:20 UTC20m
2026-05-28 VJT957 - May 28, 14:50 UTCMay 28, 15:25 UTC35m
2026-05-27 VJT957 - May 27, 04:30 UTCMay 27, 10:20 UTC5h 50m
2026-05-26 VJT957 - May 26, 17:04 UTCMay 27, 02:04 UTC9h 0m
2026-05-25 VJT957 - May 25, 20:09 UTCMay 25, 22:25 UTC2h 15m
2026-05-25 VJT957 YYZ → VNY May 25, 14:45 UTCMay 25, 19:10 UTC4h 25m
2026-05-24 VJT957 - May 24, 20:40 UTCMay 24, 21:45 UTC1h 5m
2026-05-24 VJT957 AUS → ROG May 24, 17:10 UTCMay 24, 18:10 UTC1h 0m
2026-05-22 VJT957 - May 22, 19:55 UTCMay 23, 01:50 UTC5h 55m
2026-05-22 VJT957 TSA → ANC May 22, 10:05 UTCMay 22, 18:20 UTC8h 15m
2026-05-21 VJT957 - May 21, 06:40 UTCMay 21, 11:00 UTC4h 20m
2026-05-20 VJT957 - May 20, 10:25 UTCMay 21, 05:10 UTC18h 45m
2026-05-20 VJT957 - May 20, 09:25 UTCMay 21, 05:10 UTC19h 45m
2026-05-20 VJT957 - May 20, 06:50 UTCMay 20, 07:00 UTC10m
2026-05-20 VJT957 - May 20, 04:45 UTCMay 20, 05:15 UTC30m
2026-05-18 VJT957 - May 18, 15:40 UTCMay 18, 15:50 UTC10m
2026-05-18 VJT957 - May 18, 03:30 UTCMay 18, 06:50 UTC3h 20m
2026-05-16 VJT274 - May 16, 10:16 UTCMay 16, 15:25 UTC5h 10m
2026-05-15 VJT957 - May 15, 01:35 UTCMay 15, 08:15 UTC6h 40m
2026-05-14 VJT957 - May 14, 18:35 UTCMay 15, 00:25 UTC5h 50m
2026-05-14 VJT957 TEB → HPN May 14, 15:50 UTCMay 14, 16:10 UTC20m
2026-05-12 VJT957 BQH → TEB May 12, 14:00 UTCMay 12, 21:20 UTC7h 20m
2026-05-11 VJT957 - May 11, 08:15 UTCMay 11, 08:50 UTC35m
2026-05-10 VJT957 - May 10, 23:09 UTCMay 11, 06:55 UTC7h 45m
2026-05-10 VJT957 - May 10, 19:30 UTCMay 10, 21:54 UTC2h 25m
2026-05-09 VJT957 - May 9, 10:30 UTCMay 9, 17:40 UTC7h 10m
2026-05-09 VJT957 - May 9, 07:15 UTCMay 9, 08:45 UTC1h 30m
2026-05-08 VJT957 - May 8, 10:39 UTCMay 8, 15:25 UTC4h 45m
2026-05-04 VJT957 - May 4, 13:05 UTCMay 4, 17:00 UTC3h 55m
2026-05-04 VJT957 LIN → NCE May 4, 09:25 UTCMay 4, 10:05 UTC40m
2026-05-03 VJT957 - May 3, 15:10 UTCMay 3, 16:45 UTC1h 35m
2026-05-03 VJT957 LBG → LTN May 3, 07:25 UTCMay 3, 08:15 UTC50m
2026-05-03 VJT957 - May 3, 04:50 UTCMay 3, 06:25 UTC1h 35m
2026-05-02 VJT957 - May 2, 22:20 UTCMay 2, 22:30 UTC10m
2026-05-01 VJT957 - May 1, 21:00 UTCMay 1, 23:30 UTC2h 30m
2026-05-01 VJT957 - May 1, 17:30 UTCMay 1, 20:05 UTC2h 35m
2026-04-30 VJT957 - Apr 30, 07:50 UTCApr 30, 15:10 UTC7h 20m
2026-04-29 VJT957 - Apr 29, 10:30 UTCApr 29, 11:45 UTC1h 15m
2026-04-29 VJT957 - Apr 29, 01:05 UTCApr 29, 09:05 UTC8h 1m
2026-04-28 VJT957 - Apr 28, 22:00 UTCApr 28, 23:25 UTC1h 25m
2026-04-27 VJT957 - Apr 27, 20:20 UTCApr 27, 21:00 UTC40m
2026-04-26 VJT957 - Apr 26, 06:20 UTCApr 26, 17:25 UTC11h 5m
2026-04-25 VJT957 - Apr 25, 08:55 UTCApr 25, 09:40 UTC45m
2026-04-23 VJT957 - Apr 23, 06:40 UTCApr 23, 07:01 UTC20m
2026-04-23 VJT957 - Apr 23, 00:10 UTCApr 23, 05:50 UTC5h 40m
2026-04-21 VJT957 - Apr 21, 12:15 UTCApr 21, 13:30 UTC1h 15m
2026-04-20 VJT957 - Apr 20, 21:00 UTCApr 21, 07:35 UTC10h 35m
2026-04-18 VJT957 - Apr 18, 18:55 UTCApr 19, 05:05 UTC10h 10m
2026-04-18 VJT957 LBA → LBA Apr 18, 17:50 UTCApr 18, 18:05 UTC15m
2026-04-18 VJT957 MUC → LBA Apr 18, 14:35 UTCApr 18, 16:15 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-VJV page for operator, model, and routing details .

Mode-S 4D2131 frequently asked

What is Mode-S code 4D2131?
4D2131 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VJV.
Where is Mode-S 4D2131 registered?
Mode-S code 4D2131 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2131 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2131, octal 23220461, decimal 5,054,769.
What flights does 4D2131 operate?
Mode-S 4D2131 has broadcast 3 distinct callsigns, including VJT957, VJT773G, VJT274.