sensors Mode-S transponder

4D2041

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2041
Octal
23220101
Decimal
5,054,529
Country
MT
Tail
9H-VFS
Type
CL60
No current signal · last broadcast Jul 26, 20:45 UTC
Flights observed
160
Distinct callsigns
4
Country
MT
Last broadcast
Jul 26, 20:45 UTC

Last known position

Most recent position reported by Mode-S 4D2041.

Country allocation

The ICAO 24-bit address 4D2041 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 4 distinct

Callsign Airline Flights Last seen
VJT518 - 154 2026-07-26
VJT711Q - 3 2026-06-01
VJT958T - 2 2026-06-03
VJT171 - 1 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VJT518 - Jul 26, 19:15 UTCJul 26, 20:45 UTC1h 30m
2026-07-26 VJT518 NCE → MUC Jul 26, 17:15 UTCJul 26, 18:20 UTC1h 5m
2026-07-26 VJT518 - Jul 26, 14:15 UTCJul 26, 15:30 UTC1h 15m
2026-07-26 VJT518 - Jul 26, 11:25 UTCJul 26, 13:20 UTC1h 55m
2026-07-25 VJT518 OXF → FRA Jul 25, 17:15 UTCJul 25, 18:30 UTC1h 15m
2026-07-25 VJT518 VCE → OXF Jul 25, 13:05 UTCJul 25, 15:05 UTC2h 0m
2026-07-25 VJT518 - Jul 25, 09:55 UTCJul 25, 10:30 UTC35m
2026-07-24 VJT518 - Jul 24, 17:25 UTCJul 24, 18:45 UTC1h 20m
2026-07-24 VJT518 FAO → LBG Jul 24, 14:10 UTCJul 24, 16:05 UTC1h 55m
2026-07-24 VJT518 - Jul 24, 10:35 UTCJul 24, 13:10 UTC2h 35m
2026-07-24 VJT518 - Jul 24, 07:40 UTCJul 24, 08:35 UTC55m
2026-07-23 VJT518 CEQ → LBG Jul 23, 14:20 UTCJul 23, 15:50 UTC1h 30m
2026-07-23 VJT518 - Jul 23, 09:55 UTCJul 23, 13:35 UTC3h 40m
2026-07-22 VJT518 - Jul 22, 14:45 UTCJul 22, 17:20 UTC2h 35m
2026-07-22 VJT518 - Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-19 VJT518 CGN → ATH Jul 19, 09:15 UTCJul 19, 11:45 UTC2h 30m
2026-07-18 VJT518 - Jul 18, 14:00 UTCJul 18, 15:15 UTC1h 15m
2026-07-18 VJT518 ATH → NCE Jul 18, 09:40 UTCJul 18, 12:00 UTC2h 20m
2026-07-18 VJT518 BDS → ATH Jul 18, 06:40 UTCJul 18, 07:35 UTC55m
2026-07-17 VJT518 ATH → BDS Jul 17, 11:39 UTCJul 17, 12:35 UTC55m
2026-07-17 VJT518 - Jul 17, 08:30 UTCJul 17, 10:20 UTC1h 50m
2026-07-17 VJT518 - Jul 17, 05:04 UTCJul 17, 07:25 UTC2h 20m
2026-07-16 VJT518 - Jul 16, 07:45 UTCJul 16, 08:55 UTC1h 10m
2026-07-16 VJT518 - Jul 16, 04:35 UTCJul 16, 05:45 UTC1h 10m
2026-07-14 VJT518 - Jul 14, 16:45 UTCJul 14, 17:50 UTC1h 5m
2026-07-14 VJT518 RKV → IBZ Jul 14, 10:40 UTCJul 14, 15:00 UTC4h 20m
2026-07-14 VJT518 - Jul 14, 06:10 UTCJul 14, 08:55 UTC2h 45m
2026-07-10 VJT518 - Jul 10, 13:25 UTCJul 10, 14:50 UTC1h 25m
2026-07-10 VJT518 - Jul 10, 09:30 UTCJul 10, 11:10 UTC1h 40m
2026-07-09 VJT518 MXP → FAB Jul 9, 13:40 UTCJul 9, 15:05 UTC1h 25m
2026-07-09 VJT518 NCE → MXP Jul 9, 11:10 UTCJul 9, 11:40 UTC30m
2026-07-09 VJT518 BRN → NCE Jul 9, 07:35 UTCJul 9, 08:25 UTC50m
2026-07-08 VJT518 TLV → BRN Jul 8, 06:15 UTCJul 8, 10:15 UTC4h 0m
2026-07-08 VJT518 - Jul 8, 04:05 UTCJul 8, 04:45 UTC40m
2026-07-06 VJT518 - Jul 6, 03:50 UTCJul 6, 05:20 UTC1h 30m
2026-07-06 VJT518 - Jul 6, 00:35 UTCJul 6, 03:00 UTC2h 25m
2026-07-04 VJT518 - Jul 4, 10:10 UTCJul 4, 13:25 UTC3h 15m
2026-07-04 VJT518 - Jul 4, 06:35 UTCJul 4, 09:15 UTC2h 40m
2026-07-03 VJT518 - Jul 3, 15:20 UTCJul 3, 16:50 UTC1h 30m
2026-07-03 VJT518 - Jul 3, 09:40 UTCJul 3, 11:10 UTC1h 30m
2026-06-30 VJT518 VCE → FAB Jun 30, 13:35 UTCJun 30, 15:30 UTC1h 55m
2026-06-30 VJT518 - Jun 30, 09:30 UTCJun 30, 12:05 UTC2h 35m
2026-06-30 VJT518 - Jun 30, 07:15 UTCJun 30, 08:10 UTC55m
2026-06-29 VJT518 - Jun 29, 10:55 UTCJun 29, 14:19 UTC3h 25m
2026-06-29 VJT518 - Jun 29, 06:29 UTCJun 29, 06:59 UTC30m
2026-06-24 VJT518 - Jun 24, 16:54 UTCJun 24, 19:15 UTC2h 20m
2026-06-24 VJT518 OLB → BRI Jun 24, 13:50 UTCJun 24, 14:45 UTC55m
2026-06-24 VJT518 - Jun 24, 09:15 UTCJun 24, 10:45 UTC1h 30m
2026-06-23 VJT518 - Jun 23, 12:20 UTCJun 23, 14:15 UTC1h 55m
2026-06-23 VJT518 LIS → LBG Jun 23, 08:39 UTCJun 23, 10:44 UTC2h 5m

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

Mode-S 4D2041 frequently asked

What is Mode-S code 4D2041?
4D2041 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-VFS.
Where is Mode-S 4D2041 registered?
Mode-S code 4D2041 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2041 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2041, octal 23220101, decimal 5,054,529.
What flights does 4D2041 operate?
Mode-S 4D2041 has broadcast 4 distinct callsigns, including VJT518, VJT711Q, VJT958T, VJT171.