Apparatus

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sensors Mode-S transponder

4D23A3

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D23A3
Octal
23221643
Decimal
5,055,395
Country
MT
Tail
9H-MLU
Type
A320
No current signal · last broadcast 5d ago
Flights observed
331
Distinct callsigns
20
Country
MT
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 4D23A3.

Country allocation

The ICAO 24-bit address 4D23A3 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
EWG5B Eurowings 12 2026-07-23
EWG3NP Eurowings 12 2026-07-23
EWG8DM - 8 2026-07-10
EWG79A - 8 2026-07-10
EWG6SW - 7 2026-07-03
EWG59H - 7 2026-07-03
EWG4BN - 6 2026-07-01
EWG9HK Eurowings 5 2026-07-19
EWG9F - 5 2026-06-21
EWG9A - 5 2026-07-22
EWG92K - 5 2026-06-27
EWG8QZ - 5 2026-07-22
EWG8P Eurowings 5 2026-07-13
EWG8ET - 5 2026-07-19
EWG7UK - 5 2026-07-13
EWG7KG - 5 2026-07-13
EWG3LU - 5 2026-06-27
EWG14BD - 5 2026-07-13
EWG9TG - 4 2026-07-23
EWG8JK - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EWG7QH LIN → DUS Jul 26, 18:50 UTCJul 26, 20:10 UTC1h 20m
2026-07-26 EWG3EV ZRH → HAM Jul 26, 16:45 UTCJul 26, 17:50 UTC1h 5m
2026-07-26 EWG89D SKG → DUS Jul 26, 09:15 UTCJul 26, 11:45 UTC2h 30m
2026-07-26 EWG7F IBZ → DUS Jul 26, 05:55 UTCJul 26, 08:05 UTC2h 11m
2026-07-23 EWG7TA LCA → DUS Jul 23, 15:45 UTCJul 23, 19:50 UTC4h 5m
2026-07-23 EWG9TG DUS → LCA Jul 23, 11:05 UTCJul 23, 14:25 UTC3h 20m
2026-07-23 EWG3NP LPA → DUS Jul 23, 07:15 UTCJul 23, 08:45 UTC1h 30m
2026-07-23 EWG5B HER → BER Jul 23, 04:55 UTCJul 23, 06:15 UTC1h 20m
2026-07-22 EWG43L STR → FUE Jul 22, 18:25 UTCJul 22, 19:55 UTC1h 30m
2026-07-22 EWG3TY DUS → RJK Jul 22, 16:25 UTCJul 22, 17:35 UTC1h 10m
2026-07-22 EWG8QZ BCN → DUS Jul 22, 13:20 UTCJul 22, 15:15 UTC1h 55m
2026-07-22 EWG9A - Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-22 EWG47B DUS → NCE Jul 22, 05:00 UTCJul 22, 05:25 UTC25m
2026-07-21 EWG87Z - Jul 21, 17:05 UTCJul 21, 19:45 UTC2h 40m
2026-07-21 EWG1XZ DUS → VAR Jul 21, 13:50 UTCJul 21, 16:00 UTC2h 10m
2026-07-21 EWG9DB - Jul 21, 09:15 UTCJul 21, 12:10 UTC2h 55m
2026-07-21 EWG3TM - Jul 21, 05:15 UTCJul 21, 07:45 UTC2h 30m
2026-07-20 EWG20H - Jul 20, 15:40 UTCJul 20, 17:40 UTC2h 0m
2026-07-20 EWG5LP - Jul 20, 12:20 UTCJul 20, 14:25 UTC2h 5m
2026-07-20 EWG87Z - Jul 20, 08:35 UTCJul 20, 11:05 UTC2h 30m
2026-07-20 EWG1XZ DUS → VAR Jul 20, 05:30 UTCJul 20, 07:35 UTC2h 5m
2026-07-19 EWG7QH LIN → DUS Jul 19, 18:45 UTCJul 19, 19:50 UTC1h 5m
2026-07-19 EWG3EV DUS → LIN Jul 19, 16:45 UTCJul 19, 17:50 UTC1h 5m
2026-07-19 EWG1WH CTA → DUS Jul 19, 13:20 UTCJul 19, 15:45 UTC2h 25m
2026-07-19 EWG2LD DUS → CTA Jul 19, 09:45 UTCJul 19, 11:50 UTC2h 5m
2026-07-19 EWG9HK CGN → BRI Jul 19, 07:10 UTCJul 19, 08:40 UTC1h 30m
2026-07-19 EWG8ET - Jul 19, 04:35 UTCJul 19, 06:00 UTC1h 25m
2026-07-18 EWG7TA LCA → DUS Jul 18, 16:25 UTCJul 18, 20:25 UTC4h 0m
2026-07-18 EWG9TG DUS → LCA Jul 18, 11:30 UTCJul 18, 15:00 UTC3h 30m
2026-07-18 EWG16MN - Jul 18, 07:50 UTCJul 18, 10:00 UTC2h 10m
2026-07-18 EWG3EZ DUS → ALC Jul 18, 04:20 UTCJul 18, 06:40 UTC2h 20m
2026-07-17 EWG36C - Jul 17, 17:09 UTCJul 17, 20:15 UTC3h 5m
2026-07-17 EWG8RW - Jul 17, 13:00 UTCJul 17, 15:44 UTC2h 45m
2026-07-17 EWG87Z - Jul 17, 08:49 UTCJul 17, 11:25 UTC2h 35m
2026-07-17 EWG1XZ - Jul 17, 05:35 UTCJul 17, 07:44 UTC2h 10m
2026-07-16 EWG2Q - Jul 16, 17:14 UTCJul 16, 18:44 UTC1h 30m
2026-07-16 EWG3AM DUS → WAW Jul 16, 14:50 UTCJul 16, 16:09 UTC1h 20m
2026-07-16 EWG7TA LCA → DUS Jul 16, 09:15 UTCJul 16, 13:20 UTC4h 5m
2026-07-16 EWG9TG - Jul 16, 04:35 UTCJul 16, 08:00 UTC3h 25m
2026-07-15 EWG4AM MAH → DUS Jul 15, 16:05 UTCJul 15, 18:10 UTC2h 5m
2026-07-15 EWG25T DUS → MAH Jul 15, 12:55 UTCJul 15, 15:00 UTC2h 5m
2026-07-15 EWG82U ATH → DUS Jul 15, 08:55 UTCJul 15, 11:55 UTC3h 0m
2026-07-15 EWG28J DUS → ATH Jul 15, 05:10 UTCJul 15, 07:45 UTC2h 35m
2026-07-14 EWG1U BCN → DUS Jul 14, 18:45 UTCJul 14, 20:25 UTC1h 40m
2026-07-14 EWG18C DUS → BCN Jul 14, 15:20 UTCJul 14, 17:05 UTC1h 45m
2026-07-14 EWG5HF - Jul 14, 09:40 UTCJul 14, 13:00 UTC3h 20m
2026-07-14 EWG80V DUS → KGS Jul 14, 05:20 UTCJul 14, 08:05 UTC2h 45m
2026-07-13 EWG7KG PRG → DUS Jul 13, 18:40 UTCJul 13, 19:40 UTC1h 0m
2026-07-13 EWG7UK - Jul 13, 16:45 UTCJul 13, 17:40 UTC55m
2026-07-13 EWG8P STR → RMO Jul 13, 13:40 UTCJul 13, 15:40 UTC2h 0m

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

Mode-S 4D23A3 frequently asked

What is Mode-S code 4D23A3?
4D23A3 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-MLU.
Where is Mode-S 4D23A3 registered?
Mode-S code 4D23A3 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D23A3 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D23A3, octal 23221643, decimal 5,055,395.
What flights does 4D23A3 operate?
Mode-S 4D23A3 has broadcast 20 distinct callsigns, including EWG5B, EWG3NP, EWG8DM, EWG79A, EWG6SW.