Apparatus

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sensors Mode-S transponder

4D2357

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2357
Octal
23221527
Decimal
5,055,319
Country
MT
Tail
9H-GTS
Type
A320
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
240
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S 4D2357.

Country allocation

The ICAO 24-bit address 4D2357 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
GJM3327 - 20 2026-05-31
GJM3328 - 19 2026-05-31
ETD2AU Etihad Airways 17 2026-07-24
GJT25H Gestion Aerea Ajecutiva 15 2026-05-27
GJT9NV Gestion Aerea Ajecutiva 14 2026-05-27
ETD3LD Etihad Airways 14 2026-07-24
ETD5LZ Etihad Airways 13 2026-07-25
ETD587 Etihad Airways 11 2026-07-26
ETD7XH Etihad Airways 9 2026-07-25
ETD588 Etihad Airways 9 2026-07-23
ETD9BM - 8 2026-07-25
ETD88F Etihad Airways 8 2026-07-26
ETD5FJ Etihad Airways 8 2026-07-25
ETD5KY - 7 2026-07-14
ETD3SQ - 7 2026-07-14
ETD3AH Etihad Airways 7 2026-07-20
GJT7XU Gestion Aerea Ajecutiva 5 2026-05-21
GJT54E Gestion Aerea Ajecutiva 5 2026-05-21
ETD6QA Etihad Airways 5 2026-07-25
GJT48P Gestion Aerea Ajecutiva 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ETD587 AUH → AMM Jul 26, 20:50 UTCJul 26, 21:45 UTC55m
2026-07-26 ETD88F BEY → AUH Jul 26, 05:55 UTCJul 26, 13:55 UTC8h 1m
2026-07-25 ETD5FJ AUH → KHI Jul 25, 20:45 UTCJul 26, 02:15 UTC5h 30m
2026-07-25 ETD6QA KHI → AUH Jul 25, 17:55 UTCJul 25, 18:10 UTC15m
2026-07-25 ETD5LZ AUH → KHI Jul 25, 12:25 UTCJul 25, 13:00 UTC35m
2026-07-25 ETD9BM - Jul 25, 04:55 UTCJul 25, 05:50 UTC55m
2026-07-25 ETD7XH AUH → BEY Jul 25, 00:35 UTCJul 25, 03:30 UTC2h 55m
2026-07-24 ETD2AU AMM → AUH Jul 24, 12:05 UTCJul 24, 14:50 UTC2h 45m
2026-07-24 ETD3LD AUH → AMM Jul 24, 05:30 UTCJul 24, 08:15 UTC2h 45m
2026-07-23 ETD588 AMM → AUH Jul 23, 23:55 UTCJul 24, 02:35 UTC2h 40m
2026-07-23 ETD587 AUH → AMM Jul 23, 20:25 UTCJul 23, 20:45 UTC20m
2026-07-23 ETD587 AUH → AMM Jul 23, 18:00 UTCJul 23, 18:50 UTC50m
2026-07-23 ETD2AU AMM → AUH Jul 23, 12:10 UTCJul 23, 14:55 UTC2h 45m
2026-07-23 ETD3LD AUH → AMM Jul 23, 05:35 UTCJul 23, 08:10 UTC2h 35m
2026-07-22 ETD588 AMM → AUH Jul 22, 23:55 UTCJul 23, 02:45 UTC2h 50m
2026-07-22 ETD587 AUH → AMM Jul 22, 19:40 UTCJul 22, 20:20 UTC40m
2026-07-22 ETD587 AUH → AMM Jul 22, 17:35 UTCJul 22, 18:25 UTC50m
2026-07-22 ETD2AU AMM → AUH Jul 22, 12:10 UTCJul 22, 14:55 UTC2h 45m
2026-07-22 ETD3LD AUH → AMM Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-21 ETD588 - Jul 21, 23:45 UTCJul 22, 02:25 UTC2h 40m
2026-07-21 ETD587 AUH → AMM Jul 21, 20:15 UTCJul 21, 20:40 UTC25m
2026-07-21 ETD2AU AMM → AUH Jul 21, 12:10 UTCJul 21, 15:05 UTC2h 55m
2026-07-21 ETD3LD AUH → AMM Jul 21, 05:40 UTCJul 21, 08:20 UTC2h 40m
2026-07-21 ETD588 - Jul 21, 02:20 UTCJul 21, 02:40 UTC20m
2026-07-20 ETD588 - Jul 20, 23:50 UTCJul 21, 00:25 UTC35m
2026-07-20 ETD587 AUH → AMM Jul 20, 18:05 UTCJul 20, 21:00 UTC2h 55m
2026-07-20 ETD88F - Jul 20, 11:50 UTCJul 20, 14:55 UTC3h 5m
2026-07-20 ETD3AH AUH → BEY Jul 20, 05:55 UTCJul 20, 08:45 UTC2h 50m
2026-07-19 ETD588 - Jul 19, 23:40 UTCJul 20, 02:25 UTC2h 45m
2026-07-19 ETD587 AUH → AMM Jul 19, 18:00 UTCJul 19, 20:50 UTC2h 50m
2026-07-19 ETD88F - Jul 19, 11:50 UTCJul 19, 14:50 UTC3h 0m
2026-07-19 ETD3AH AUH → BEY Jul 19, 07:35 UTCJul 19, 07:45 UTC10m
2026-07-19 ETD3AH AUH → BEY Jul 19, 05:55 UTCJul 19, 06:05 UTC10m
2026-07-18 ETD1NV - Jul 18, 17:15 UTCJul 18, 20:30 UTC3h 15m
2026-07-18 ETD6DU - Jul 18, 11:30 UTCJul 18, 12:10 UTC40m
2026-07-17 ETD5FJ - Jul 17, 20:29 UTCJul 17, 20:55 UTC25m
2026-07-17 ETD6QA - Jul 17, 18:05 UTCJul 17, 18:15 UTC10m
2026-07-16 ETD588 - Jul 16, 23:44 UTCJul 17, 02:25 UTC2h 40m
2026-07-16 ETD587 - Jul 16, 18:10 UTCJul 16, 20:45 UTC2h 35m
2026-07-16 ETD2AU - Jul 16, 12:09 UTCJul 16, 15:00 UTC2h 50m
2026-07-16 ETD3LD - Jul 16, 05:15 UTCJul 16, 08:10 UTC2h 55m
2026-07-15 ETD588 - Jul 15, 23:45 UTCJul 16, 02:40 UTC2h 55m
2026-07-15 ETD587 - Jul 15, 18:10 UTCJul 15, 21:05 UTC2h 55m
2026-07-15 ETD2AU - Jul 15, 12:15 UTCJul 15, 15:00 UTC2h 45m
2026-07-15 ETD3LD - Jul 15, 05:40 UTCJul 15, 08:20 UTC2h 40m
2026-07-14 ETD5FJ - Jul 14, 20:45 UTCJul 15, 02:10 UTC5h 24m
2026-07-14 ETD5LZ - Jul 14, 11:05 UTCJul 14, 18:25 UTC7h 20m
2026-07-14 ETD9YP - Jul 14, 09:00 UTCJul 14, 09:10 UTC10m
2026-07-14 ETD5KY - Jul 14, 04:20 UTCJul 14, 04:50 UTC30m
2026-07-14 ETD3SQ - Jul 14, 02:05 UTCJul 14, 02:20 UTC15m

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

Mode-S 4D2357 frequently asked

What is Mode-S code 4D2357?
4D2357 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-GTS.
Where is Mode-S 4D2357 registered?
Mode-S code 4D2357 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2357 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2357, octal 23221527, decimal 5,055,319.
What flights does 4D2357 operate?
Mode-S 4D2357 has broadcast 20 distinct callsigns, including GJM3327, GJM3328, ETD2AU, GJT25H, GJT9NV.