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sensors Mode-S transponder

4D2174

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-GAMA · CESSNA 560XL Citation XLS

Hex
4D2174
Octal
23220564
Decimal
5,054,836
Country
MT
Tail
9H-GAMA
Type
C56X
No current signal · last broadcast 21h ago
Flights observed
89
Distinct callsigns
1
Country
MT
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 4D2174.

Country allocation

The ICAO 24-bit address 4D2174 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
TYJ520 - 89 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 TYJ520 - Jul 13, 17:20 UTCJul 13, 17:30 UTC10m
2026-07-13 TYJ520 ZRH → NCE Jul 13, 16:20 UTCJul 13, 17:10 UTC50m
2026-07-13 TYJ520 NCE → ZRH Jul 13, 05:45 UTCJul 13, 06:35 UTC50m
2026-07-12 TYJ520 - Jul 12, 15:10 UTCJul 12, 16:50 UTC1h 40m
2026-07-12 TYJ520 - Jul 12, 11:01 UTCJul 12, 13:40 UTC2h 40m
2026-07-10 TYJ520 - Jul 10, 12:30 UTCJul 10, 13:25 UTC55m
2026-07-10 TYJ520 - Jul 10, 08:20 UTCJul 10, 11:00 UTC2h 40m
2026-07-10 TYJ520 - Jul 10, 06:20 UTCJul 10, 06:55 UTC35m
2026-07-09 TYJ520 - Jul 9, 09:50 UTCJul 9, 11:25 UTC1h 35m
2026-07-09 TYJ520 - Jul 9, 09:30 UTCJul 9, 09:45 UTC15m
2026-07-08 TYJ520 MAD → KRK Jul 8, 14:00 UTCJul 8, 17:10 UTC3h 10m
2026-07-07 TYJ520 - Jul 7, 18:40 UTCJul 7, 20:50 UTC2h 10m
2026-07-06 TYJ520 - Jul 6, 14:10 UTCJul 6, 14:50 UTC40m
2026-07-06 TYJ520 - Jul 6, 11:40 UTCJul 6, 13:05 UTC1h 25m
2026-07-06 TYJ520 - Jul 6, 09:35 UTCJul 6, 11:05 UTC1h 30m
2026-07-05 TYJ520 - Jul 5, 13:30 UTCJul 5, 14:20 UTC50m
2026-07-05 TYJ520 - Jul 5, 10:05 UTCJul 5, 12:10 UTC2h 5m
2026-07-05 TYJ520 - Jul 5, 08:35 UTCJul 5, 09:00 UTC25m
2026-07-03 TYJ520 - Jul 3, 18:05 UTCJul 3, 19:10 UTC1h 5m
2026-07-03 TYJ520 HAM → FAB Jul 3, 14:50 UTCJul 3, 16:20 UTC1h 30m
2026-07-02 TYJ520 - Jul 2, 10:20 UTCJul 2, 12:05 UTC1h 45m
2026-07-02 TYJ520 RKE → BUD Jul 2, 07:45 UTCJul 2, 09:20 UTC1h 35m
2026-07-01 TYJ520 BQH → RKE Jul 1, 15:10 UTCJul 1, 16:35 UTC1h 25m
2026-07-01 TYJ520 - Jul 1, 10:25 UTCJul 1, 11:15 UTC50m
2026-07-01 TYJ520 IBZ → MST Jul 1, 07:35 UTCJul 1, 10:00 UTC2h 25m
2026-06-30 TYJ520 - Jun 30, 16:25 UTCJun 30, 18:20 UTC1h 55m
2026-06-30 TYJ520 - Jun 30, 13:15 UTCJun 30, 15:00 UTC1h 45m
2026-06-30 TYJ520 - Jun 30, 09:30 UTCJun 30, 10:10 UTC40m
2026-06-28 TYJ520 - Jun 28, 15:24 UTCJun 28, 17:04 UTC1h 40m
2026-06-28 TYJ520 - Jun 28, 12:44 UTCJun 28, 13:55 UTC1h 10m
2026-06-28 TYJ520 - Jun 28, 07:44 UTCJun 28, 10:35 UTC2h 50m
2026-06-28 TYJ520 - Jun 28, 04:59 UTCJun 28, 06:34 UTC1h 35m
2026-06-26 TYJ520 - Jun 26, 10:55 UTCJun 26, 11:40 UTC45m
2026-06-25 TYJ520 - Jun 25, 07:39 UTCJun 25, 09:29 UTC1h 50m
2026-06-24 TYJ520 - Jun 24, 09:09 UTCJun 24, 11:50 UTC2h 40m
2026-06-23 TYJ520 - Jun 23, 14:44 UTCJun 23, 15:24 UTC40m
2026-06-22 TYJ520 - Jun 22, 07:34 UTCJun 22, 08:10 UTC35m
2026-06-22 TYJ520 - Jun 22, 05:20 UTCJun 22, 06:19 UTC1h 0m
2026-06-20 TYJ520 - Jun 20, 13:14 UTCJun 20, 13:44 UTC30m
2026-06-20 TYJ520 - Jun 20, 10:15 UTCJun 20, 11:34 UTC1h 20m
2026-06-20 TYJ520 - Jun 20, 07:39 UTCJun 20, 08:25 UTC45m
2026-06-19 TYJ520 - Jun 19, 16:19 UTCJun 19, 17:04 UTC45m
2026-06-18 TYJ520 NCE → BQH Jun 18, 12:20 UTCJun 18, 14:01 UTC1h 40m
2026-06-18 TYJ520 - Jun 18, 08:10 UTCJun 18, 10:30 UTC2h 20m
2026-06-17 TYJ520 - Jun 17, 13:15 UTCJun 17, 13:35 UTC20m
2026-06-17 TYJ520 - Jun 17, 10:40 UTCJun 17, 12:30 UTC1h 50m
2026-06-15 TYJ520 - Jun 15, 10:45 UTCJun 15, 12:00 UTC1h 15m
2026-06-15 TYJ520 - Jun 15, 07:29 UTCJun 15, 09:30 UTC2h 0m
2026-06-15 TYJ520 VNO → ATH Jun 15, 03:40 UTCJun 15, 06:35 UTC2h 55m
2026-06-14 TYJ520 - Jun 14, 08:35 UTCJun 14, 11:15 UTC2h 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-GAMA page for operator, model, and routing details .

Mode-S 4D2174 frequently asked

What is Mode-S code 4D2174?
4D2174 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-GAMA.
Where is Mode-S 4D2174 registered?
Mode-S code 4D2174 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2174 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2174, octal 23220564, decimal 5,054,836.
What flights does 4D2174 operate?
Mode-S 4D2174 has broadcast 1 distinct callsign, including TYJ520.