Apparatus

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sensors Mode-S transponder

4D20C9

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-VFC · BOMBARDIER CL-600 Challenger

Hex
4D20C9
Octal
23220311
Decimal
5,054,665
Country
MT
Tail
9H-VFC
Type
CL60
No current signal · last broadcast 1d ago
Flights observed
94
Distinct callsigns
2
Country
MT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4D20C9.

Country allocation

The ICAO 24-bit address 4D20C9 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 2 distinct

Callsign Airline Flights Last seen
VJT582 - 93 2026-07-16
VJT507L - 1 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 VJT582 - Jul 16, 17:05 UTCJul 16, 17:45 UTC40m
2026-07-16 VJT507L - Jul 16, 12:09 UTCJul 16, 13:00 UTC50m
2026-07-16 VJT582 - Jul 16, 09:05 UTCJul 16, 10:10 UTC1h 5m
2026-07-16 VJT582 - Jul 16, 06:50 UTCJul 16, 08:10 UTC1h 20m
2026-07-15 VJT582 - Jul 15, 14:00 UTCJul 15, 15:25 UTC1h 25m
2026-07-15 VJT582 IBZ → LBG Jul 15, 11:25 UTCJul 15, 13:00 UTC1h 35m
2026-07-14 VJT582 - Jul 14, 10:50 UTCJul 14, 12:55 UTC2h 5m
2026-07-13 VJT582 - Jul 13, 15:30 UTCJul 13, 16:45 UTC1h 15m
2026-07-13 VJT582 - Jul 13, 10:20 UTCJul 13, 14:35 UTC4h 15m
2026-07-12 VJT582 - Jul 12, 12:20 UTCJul 13, 12:15 UTC23h 55m
2026-07-12 VJT582 - Jul 12, 12:05 UTCJul 12, 13:55 UTC1h 50m
2026-07-12 VJT582 - Jul 12, 09:30 UTCJul 12, 10:50 UTC1h 20m
2026-07-11 VJT582 - Jul 11, 09:10 UTCJul 11, 18:05 UTC8h 55m
2026-07-10 VJT582 PEG → BER Jul 10, 12:35 UTCJul 10, 14:20 UTC1h 45m
2026-07-10 VJT582 - Jul 10, 09:25 UTCJul 10, 11:25 UTC2h 0m
2026-07-10 VJT582 VIE → LTN Jul 10, 05:40 UTCJul 10, 07:45 UTC2h 5m
2026-07-06 VJT582 - Jul 6, 15:20 UTCJul 6, 16:20 UTC1h 0m
2026-07-06 VJT582 - Jul 6, 13:30 UTCJul 6, 13:40 UTC10m
2026-07-06 VJT582 - Jul 6, 10:05 UTCJul 6, 11:35 UTC1h 30m
2026-07-05 VJT582 - Jul 5, 13:35 UTCJul 5, 17:55 UTC4h 20m
2026-07-05 VJT582 - Jul 5, 11:45 UTCJul 5, 12:00 UTC15m
2026-07-05 VJT582 - Jul 5, 09:30 UTCJul 5, 09:45 UTC15m
2026-07-03 VJT582 - Jul 3, 16:40 UTCJul 3, 17:00 UTC20m
2026-06-24 VJT582 - Jun 24, 13:50 UTCJun 24, 15:09 UTC1h 20m
2026-06-23 VJT582 - Jun 23, 11:29 UTCJun 23, 11:49 UTC20m
2026-06-21 VJT582 - Jun 21, 12:44 UTCJun 21, 14:05 UTC1h 20m
2026-06-21 VJT582 - Jun 21, 07:25 UTCJun 21, 11:34 UTC4h 10m
2026-06-08 VJT582 - Jun 8, 20:05 UTCJun 8, 22:55 UTC2h 50m
2026-06-07 VJT582 - Jun 7, 18:45 UTCJun 7, 23:10 UTC4h 25m
2026-06-07 VJT582 LBG → LTN Jun 7, 14:50 UTCJun 7, 15:35 UTC45m
2026-06-06 VJT582 - Jun 6, 20:00 UTCJun 6, 22:00 UTC2h 0m
2026-05-31 VJT582 - May 31, 00:10 UTCMay 31, 00:45 UTC35m
2026-05-30 VJT582 - May 30, 21:00 UTCMay 30, 23:15 UTC2h 15m
2026-05-30 VJT582 - May 30, 14:50 UTCMay 30, 15:15 UTC25m
2026-05-29 VJT582 - May 29, 16:55 UTCMay 30, 15:15 UTC22h 20m
2026-05-29 VJT582 - May 29, 13:50 UTCMay 29, 17:00 UTC3h 10m
2026-05-28 VJT582 - May 28, 07:35 UTCMay 28, 08:50 UTC1h 15m
2026-05-28 VJT582 BTS → SZG May 28, 06:00 UTCMay 28, 06:35 UTC35m
2026-05-27 VJT582 ATH → BTS May 27, 15:40 UTCMay 27, 17:30 UTC1h 50m
2026-05-27 VJT582 - May 27, 11:25 UTCMay 27, 14:40 UTC3h 15m
2026-05-26 VJT582 NUE → LTN May 26, 11:34 UTCMay 26, 13:00 UTC1h 25m
2026-05-26 VJT582 - May 26, 09:25 UTCMay 26, 09:49 UTC25m
2026-05-26 VJT582 NUE → NUE May 26, 08:15 UTCMay 26, 09:09 UTC55m
2026-05-25 VJT582 BTS → NUE May 25, 14:40 UTCMay 25, 15:30 UTC50m
2026-05-25 VJT582 - May 25, 11:15 UTCMay 25, 13:10 UTC1h 55m
2026-05-24 VJT582 - May 24, 14:35 UTCMay 24, 15:00 UTC25m
2026-05-23 VJT582 BTS → ATH May 23, 11:40 UTCMay 23, 13:30 UTC1h 50m
2026-05-23 VJT582 VLC → BTS May 23, 07:25 UTCMay 23, 09:55 UTC2h 30m
2026-05-22 VJT582 - May 22, 13:55 UTCMay 22, 15:55 UTC2h 0m
2026-05-22 VJT582 TLV → AMS May 22, 08:30 UTCMay 22, 12:55 UTC4h 25m

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-VFC page for operator, model, and routing details .

Mode-S 4D20C9 frequently asked

What is Mode-S code 4D20C9?
4D20C9 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VFC.
Where is Mode-S 4D20C9 registered?
Mode-S code 4D20C9 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D20C9 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 4D20C9, octal 23220311, decimal 5,054,665.
What flights does 4D20C9 operate?
Mode-S 4D20C9 has broadcast 2 distinct callsigns, including VJT582, VJT507L.