sensors Mode-S transponder

4D203A

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-HFL · AIRBUS A-330-200

Hex
4D203A
Octal
23220072
Decimal
5,054,522
Country
MT
Tail
9H-HFL
Type
A332
No current signal · last broadcast 1d ago
Flights observed
22
Distinct callsigns
16
Country
MT
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4D203A.

Country allocation

The ICAO 24-bit address 4D203A 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 16 distinct

Callsign Airline Flights Last seen
KNE674 Nas Air 4 2026-06-03
KNE9536 - 2 2026-06-02
KNE8433 - 2 2026-04-20
KNE8429 - 2 2026-04-18
KNE9482 - 1 2026-05-31
KNE9480 - 1 2026-05-31
KNE8842 - 1 2026-05-20
KNE8568 - 1 2026-05-21
KNE8567 - 1 2026-05-21
KNE8438 - 1 2026-04-23
KNE8436 - 1 2026-04-22
KNE8434 - 1 2026-04-21
KNE8431 - 1 2026-04-19
KNE8430 Nas Air 1 2026-04-19
KNE8427 - 1 2026-04-18
KNE673 Nas Air 1 2026-04-21

Recent flights last 22

DateFlightRouteTakeoffLandingDuration
2026-06-03 KNE674 DAC → JED Jun 3, 02:15 UTCJun 3, 07:15 UTC5h 0m
2026-06-02 KNE9536 - Jun 2, 19:15 UTCJun 3, 00:05 UTC4h 50m
2026-06-01 KNE9536 - Jun 1, 20:55 UTCJun 2, 19:35 UTC22h 40m
2026-06-01 KNE674 DAC → JED Jun 1, 16:10 UTCJun 1, 21:05 UTC4h 55m
2026-05-31 KNE9482 - May 31, 18:35 UTCJun 1, 14:00 UTC19h 25m
2026-05-31 KNE674 DAC → JED May 31, 16:35 UTCJun 1, 14:00 UTC21h 25m
2026-05-31 KNE674 DAC → JED May 31, 16:15 UTCJun 1, 14:00 UTC21h 45m
2026-05-31 KNE9480 - May 31, 10:55 UTCMay 31, 13:50 UTC2h 55m
2026-05-21 KNE8568 - May 21, 17:10 UTCMay 21, 20:20 UTC3h 10m
2026-05-21 KNE8567 - May 21, 10:45 UTCMay 21, 13:40 UTC2h 55m
2026-05-20 KNE8842 - May 20, 07:25 UTCMay 20, 08:00 UTC35m
2026-04-23 KNE8438 - Apr 23, 17:15 UTCApr 23, 22:40 UTC5h 24m
2026-04-22 KNE8436 - Apr 22, 17:15 UTCApr 23, 12:05 UTC18h 50m
2026-04-21 KNE673 MED → DAC Apr 21, 18:35 UTCApr 22, 13:35 UTC19h 0m
2026-04-21 KNE8434 - Apr 21, 17:35 UTCApr 22, 13:35 UTC20h 0m
2026-04-20 KNE8433 - Apr 20, 18:35 UTCApr 21, 14:01 UTC19h 25m
2026-04-20 KNE8433 - Apr 20, 17:30 UTCApr 21, 14:01 UTC20h 30m
2026-04-19 KNE8431 IXW → DAC Apr 19, 18:35 UTCApr 20, 14:05 UTC19h 30m
2026-04-19 KNE8430 DAC → JED Apr 19, 17:55 UTCApr 20, 14:05 UTC20h 10m
2026-04-18 KNE8429 - Apr 18, 23:30 UTCApr 19, 15:25 UTC15h 55m
2026-04-18 KNE8429 - Apr 18, 19:10 UTCApr 19, 15:25 UTC20h 15m
2026-04-18 KNE8427 - Apr 18, 11:50 UTCApr 18, 16:25 UTC4h 35m

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

Mode-S 4D203A frequently asked

What is Mode-S code 4D203A?
4D203A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-HFL.
Where is Mode-S 4D203A registered?
Mode-S code 4D203A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D203A 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 4D203A, octal 23220072, decimal 5,054,522.
What flights does 4D203A operate?
Mode-S 4D203A has broadcast 16 distinct callsigns, including KNE674, KNE9536, KNE8433, KNE8429, KNE9482.