sensors Mode-S transponder

4D23A4

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-GKK · AIRBUS A-320

Hex
4D23A4
Octal
23221644
Decimal
5,055,396
Country
MT
Tail
9H-GKK
Type
A320
Broadcasting now · callsign EWG55CU · 31,000 ft
Flights observed
204
Distinct callsigns
20
Country
MT
Last broadcast
12h ago

Current position

4D23A4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D23A4 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 20 distinct

Callsign Airline Flights Last seen
EWG31CD - 16 2026-06-02
EWG59MG Eurowings 10 2026-05-25
EWG12JK - 10 2026-06-05
EWG78RE - 9 2026-05-28
EWG3HE Eurowings 9 2026-05-28
EWG9UH Eurowings 8 2026-06-08
EWG6T Eurowings 8 2026-05-22
EWG66L Eurowings 8 2026-06-02
EWG8UC Eurowings 7 2026-05-21
EWG02JB - 7 2026-05-21
EWG86GR Eurowings 6 2026-06-07
EWG79EB Eurowings 6 2026-05-17
EWG64RL Eurowings 6 2026-05-19
EWG4FX Eurowings 6 2026-05-18
EWG71LA - 5 2026-05-09
EWG93FL Eurowings 4 2026-05-27
EWG8YX Eurowings 4 2026-06-06
EWG68NA - 4 2026-06-07
EWG3A Eurowings 4 2026-06-07
EWG2HA Eurowings 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-08 EWG27UB STR → BOJ Jun 8, 14:45 UTCJun 8, 17:00 UTC2h 15m
2026-06-08 EWG27UB STR → BOJ Jun 8, 11:10 UTCJun 8, 13:10 UTC2h 0m
2026-06-08 EWG9UH STR → MAN Jun 8, 08:10 UTCJun 8, 09:35 UTC1h 25m
2026-06-08 EWG9UH STR → MAN Jun 8, 05:10 UTCJun 8, 06:45 UTC1h 35m
2026-06-07 EWG86GR STR → MXP Jun 7, 20:20 UTCJun 7, 20:55 UTC35m
2026-06-07 EWG86GR STR → MXP Jun 7, 18:25 UTCJun 7, 19:10 UTC45m
2026-06-07 EWG68NA SKG → STR Jun 7, 14:00 UTCJun 7, 16:05 UTC2h 5m
2026-06-07 EWG68NA STR → SKG Jun 7, 11:10 UTCJun 7, 12:55 UTC1h 45m
2026-06-07 EWG3A HAM → CFU Jun 7, 08:10 UTCJun 7, 09:50 UTC1h 40m
2026-06-07 EWG3A HAM → CFU Jun 7, 05:10 UTCJun 7, 06:35 UTC1h 25m
2026-06-06 EWG8YX STR → VLC Jun 6, 07:35 UTCJun 6, 09:24 UTC1h 50m
2026-06-06 EWG2HA DUS → ARN Jun 6, 04:20 UTCJun 6, 06:25 UTC2h 5m
2026-06-05 EWG12JK - Jun 5, 13:25 UTCJun 5, 16:10 UTC2h 45m
2026-06-05 EWG12JK - Jun 5, 09:20 UTCJun 5, 11:45 UTC2h 25m
2026-06-05 EWG2755 VIE → STR Jun 5, 06:45 UTCJun 5, 07:40 UTC55m
2026-06-05 EWG2754 STR → VIE Jun 5, 04:40 UTCJun 5, 05:35 UTC55m
2026-06-03 EWG8YX STR → VLC Jun 3, 19:35 UTCJun 3, 21:35 UTC2h 0m
2026-06-03 EWG2HA DUS → ARN Jun 3, 16:35 UTCJun 3, 18:30 UTC1h 55m
2026-06-03 EWG2801 - Jun 3, 13:30 UTCJun 3, 15:20 UTC1h 50m
2026-06-03 EWG2800 - Jun 3, 10:40 UTCJun 3, 12:10 UTC1h 30m
2026-06-03 EWG9UH STR → MAN Jun 3, 08:05 UTCJun 3, 09:30 UTC1h 25m
2026-06-03 EWG9UH STR → MAN Jun 3, 05:05 UTCJun 3, 06:40 UTC1h 35m
2026-06-02 EWG66L STR → LIS Jun 2, 18:35 UTCJun 2, 21:05 UTC2h 30m
2026-06-02 EWG66L STR → LIS Jun 2, 13:55 UTCJun 2, 16:55 UTC3h 0m
2026-06-02 EWG31CD FAO → STR Jun 2, 08:10 UTCJun 2, 11:00 UTC2h 50m
2026-06-02 EWG31CD STR → FAO Jun 2, 04:25 UTCJun 2, 07:00 UTC2h 35m
2026-06-01 EWG27UB STR → BOJ Jun 1, 14:25 UTCJun 1, 16:45 UTC2h 20m
2026-06-01 EWG27UB STR → BOJ Jun 1, 11:05 UTCJun 1, 13:10 UTC2h 5m
2026-06-01 EWG9UH STR → MAN Jun 1, 08:00 UTCJun 1, 09:25 UTC1h 25m
2026-06-01 EWG9UH STR → MAN Jun 1, 05:10 UTCJun 1, 06:45 UTC1h 35m
2026-05-31 EWG31CD FAO → STR May 31, 19:20 UTCMay 31, 21:50 UTC2h 30m
2026-05-31 EWG31CD STR → FAO May 31, 15:35 UTCMay 31, 18:05 UTC2h 30m
2026-05-29 EWG2CA - May 29, 20:00 UTCMay 29, 21:00 UTC1h 0m
2026-05-29 EWG2CA STR → HAM May 29, 17:05 UTCMay 29, 18:00 UTC55m
2026-05-29 EWG66L STR → LIS May 29, 12:20 UTCMay 29, 14:45 UTC2h 25m
2026-05-29 EWG66L STR → LIS May 29, 08:30 UTCMay 29, 11:05 UTC2h 35m
2026-05-28 EWG78RE - May 28, 14:00 UTCMay 28, 16:20 UTC2h 20m
2026-05-28 EWG3HE OTP → STR May 28, 10:10 UTCMay 28, 12:30 UTC2h 20m
2026-05-28 EWG23Y BCN → STR May 28, 07:30 UTCMay 28, 09:05 UTC1h 35m
2026-05-28 EWG7J DUS → TFS May 28, 04:45 UTCMay 28, 06:10 UTC1h 25m
2026-05-27 EWG78RE - May 27, 15:00 UTCMay 27, 17:15 UTC2h 15m
2026-05-27 EWG3HE OTP → STR May 27, 11:25 UTCMay 27, 13:35 UTC2h 10m
2026-05-27 EWG93FL OPO → STR May 27, 07:35 UTCMay 27, 09:55 UTC2h 20m
2026-05-27 EWG93FL OPO → STR May 27, 04:04 UTCMay 27, 06:29 UTC2h 25m
2026-05-26 EWG12JK - May 26, 15:45 UTCMay 26, 18:10 UTC2h 25m
2026-05-26 EWG12JK - May 26, 11:50 UTCMay 26, 14:20 UTC2h 30m
2026-05-26 EWG55CU STR → VAR May 26, 08:34 UTCMay 26, 10:39 UTC2h 5m
2026-05-26 EWG55CU STR → VAR May 26, 05:10 UTCMay 26, 07:10 UTC2h 0m
2026-05-25 EWG5UT BIO → STR May 25, 16:25 UTCMay 25, 18:05 UTC1h 40m
2026-05-25 EWG41AY - May 25, 13:35 UTCMay 25, 15:05 UTC1h 30m

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

Mode-S 4D23A4 frequently asked

What is Mode-S code 4D23A4?
4D23A4 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-GKK.
Where is Mode-S 4D23A4 registered?
Mode-S code 4D23A4 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D23A4 broadcasting right now?
Yes. Mode-S 4D23A4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D23A4, octal 23221644, decimal 5,055,396.
What flights does 4D23A4 operate?
Mode-S 4D23A4 has broadcast 20 distinct callsigns, including EWG31CD, EWG59MG, EWG12JK, EWG78RE, EWG3HE.