sensors Mode-S transponder

4D20A3

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-TIW · PILATUS PC-12

Hex
4D20A3
Octal
23220243
Decimal
5,054,627
Country
MT
Tail
9H-TIW
Type
PC12
No current signal · last broadcast 4d ago
Flights observed
36
Distinct callsigns
6
Country
MT
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 4D20A3.

Country allocation

The ICAO 24-bit address 4D20A3 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 6 distinct

Callsign Airline Flights Last seen
9HTIW - 21 2026-05-23
FLD7155 - 5 2026-05-12
FLD7326 - 3 2026-06-02
FLD7121 - 3 2026-06-04
FLD7113 - 2 2026-05-31
FLD7112 - 2 2026-05-27

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-06-04 FLD7121 - Jun 4, 12:15 UTCJun 4, 16:00 UTC3h 45m
2026-06-04 FLD7121 - Jun 4, 08:55 UTCJun 4, 11:05 UTC2h 10m
2026-06-04 FLD7121 - Jun 4, 06:35 UTCJun 4, 08:00 UTC1h 25m
2026-06-02 FLD7326 LBG → RTM Jun 2, 08:45 UTCJun 2, 09:40 UTC55m
2026-06-01 FLD7326 - Jun 1, 11:00 UTCJun 1, 11:55 UTC55m
2026-06-01 FLD7326 - Jun 1, 09:20 UTCJun 1, 09:35 UTC15m
2026-05-31 FLD7113 - May 31, 11:05 UTCMay 31, 14:10 UTC3h 5m
2026-05-31 FLD7113 - May 31, 08:25 UTCMay 31, 09:45 UTC1h 20m
2026-05-27 FLD7112 - May 27, 16:20 UTCMay 27, 19:20 UTC3h 0m
2026-05-27 FLD7112 - May 27, 12:15 UTCMay 27, 15:00 UTC2h 45m
2026-05-23 9HTIW RTM → RTM May 23, 14:05 UTCMay 23, 14:25 UTC20m
2026-05-17 9HTIW - May 17, 11:10 UTCMay 17, 12:40 UTC1h 30m
2026-05-15 9HTIW RTM → BQH May 15, 07:10 UTCMay 15, 08:00 UTC50m
2026-05-13 9HTIW - May 13, 17:00 UTCMay 13, 19:10 UTC2h 10m
2026-05-13 9HTIW RTM → LTT May 13, 14:00 UTCMay 13, 16:10 UTC2h 10m
2026-05-13 9HTIW - May 13, 08:30 UTCMay 13, 10:40 UTC2h 10m
2026-05-12 FLD7155 RTM → BGO May 12, 07:40 UTCMay 12, 10:05 UTC2h 25m
2026-05-11 FLD7155 - May 11, 17:10 UTCMay 11, 17:30 UTC20m
2026-05-11 FLD7155 - May 11, 15:35 UTCMay 11, 16:45 UTC1h 10m
2026-05-11 FLD7155 ANR → BWE May 11, 06:45 UTCMay 11, 07:55 UTC1h 10m
2026-05-11 FLD7155 RTM → ANR May 11, 05:35 UTCMay 11, 05:55 UTC20m
2026-05-05 9HTIW - May 5, 15:45 UTCMay 5, 16:00 UTC15m
2026-05-05 9HTIW - May 5, 11:25 UTCMay 5, 15:20 UTC3h 55m
2026-05-05 9HTIW - May 5, 06:30 UTCMay 5, 10:35 UTC4h 5m
2026-05-02 9HTIW - May 2, 15:25 UTCMay 2, 17:00 UTC1h 35m
2026-05-02 9HTIW - May 2, 11:30 UTCMay 2, 14:25 UTC2h 55m
2026-04-28 9HTIW RTM → RTM Apr 28, 06:30 UTCApr 28, 08:05 UTC1h 35m
2026-04-25 9HTIW - Apr 25, 18:15 UTCApr 25, 22:05 UTC3h 50m
2026-04-25 9HTIW - Apr 25, 13:25 UTCApr 25, 17:30 UTC4h 5m
2026-04-25 9HTIW - Apr 25, 12:25 UTCApr 25, 12:55 UTC30m
2026-04-25 9HTIW - Apr 25, 11:05 UTCApr 25, 11:35 UTC30m
2026-04-24 9HTIW - Apr 24, 16:00 UTCApr 24, 16:20 UTC20m
2026-04-24 9HTIW - Apr 24, 09:30 UTCApr 24, 10:00 UTC30m
2026-04-23 9HTIW - Apr 23, 12:10 UTCApr 23, 13:10 UTC1h 0m
2026-04-17 9HTIW - Apr 17, 07:20 UTCApr 17, 07:55 UTC35m
2026-04-17 9HTIW - Apr 17, 07:10 UTCApr 17, 07:15 UTC5m

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

Mode-S 4D20A3 frequently asked

What is Mode-S code 4D20A3?
4D20A3 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-TIW.
Where is Mode-S 4D20A3 registered?
Mode-S code 4D20A3 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D20A3 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D20A3, octal 23220243, decimal 5,054,627.
What flights does 4D20A3 operate?
Mode-S 4D20A3 has broadcast 6 distinct callsigns, including 9HTIW, FLD7155, FLD7326, FLD7121, FLD7113.