Apparatus

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sensors Mode-S transponder

4D2042

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-MDG · BOEING 737-800

Hex
4D2042
Octal
23220102
Decimal
5,054,530
Country
MT
Tail
9H-MDG
Type
B738
No current signal · last broadcast 4h ago
Flights observed
522
Distinct callsigns
20
Country
MT
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4D2042.

Country allocation

The ICAO 24-bit address 4D2042 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
AEZ44LG - 16 2026-07-14
AEZ389L - 15 2026-07-08
AEZ8094 - 14 2026-07-14
AEZ2363 Aerial Transit Company 14 2026-06-24
AEZ29JD Aerial Transit Company 13 2026-07-04
AEZ839Y - 12 2026-07-07
AEZ835L Aerial Transit Company 12 2026-07-04
AEZ385Z - 12 2026-07-07
AEZ2362 Aerial Transit Company 12 2026-06-21
AEZ836S - 11 2026-06-23
AEZ833J Aerial Transit Company 11 2026-07-04
AEZ47LG - 11 2026-06-21
AEZ146R - 11 2026-06-30
AEZ38TM - 10 2026-06-23
AEZ569P - 9 2026-07-05
AEZ514C - 9 2026-07-09
AEZ419P - 9 2026-07-01
AEZ2617 - 9 2026-07-05
AEZ88LL Aerial Transit Company 8 2026-06-21
AEZ7117 - 8 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AEZ7335 - Jul 14, 13:10 UTCJul 14, 14:00 UTC50m
2026-07-14 AEZ7334 CAG → LIN Jul 14, 10:45 UTCJul 14, 11:55 UTC1h 10m
2026-07-14 AEZ8094 - Jul 14, 08:35 UTCJul 14, 09:25 UTC50m
2026-07-14 AEZ44LG - Jul 14, 06:25 UTCJul 14, 07:20 UTC55m
2026-07-13 AEZ2367 - Jul 13, 20:40 UTCJul 13, 21:35 UTC55m
2026-07-13 AEZ49KF - Jul 13, 18:40 UTCJul 13, 19:35 UTC55m
2026-07-13 AEZ12RG - Jul 13, 15:50 UTCJul 13, 16:25 UTC35m
2026-07-13 AEZ22LO - Jul 13, 13:45 UTCJul 13, 14:20 UTC35m
2026-07-13 AEZ112X - Jul 13, 11:20 UTCJul 13, 11:55 UTC35m
2026-07-13 AEZ7812 - Jul 13, 09:35 UTCJul 13, 10:05 UTC30m
2026-07-13 AEZ139V - Jul 13, 07:25 UTCJul 13, 08:01 UTC35m
2026-07-13 AEZ2330 - Jul 13, 04:35 UTCJul 13, 05:20 UTC45m
2026-07-12 AEZ7335 - Jul 12, 15:45 UTCJul 12, 16:40 UTC55m
2026-07-12 AEZ7334 - Jul 12, 13:10 UTCJul 12, 14:15 UTC1h 5m
2026-07-12 AEZ7333 FCO → CAG Jul 12, 10:35 UTCJul 12, 11:15 UTC40m
2026-07-12 AEZ81GR - Jul 12, 08:35 UTCJul 12, 09:20 UTC45m
2026-07-12 AEZ100N - Jul 12, 05:10 UTCJul 12, 05:50 UTC40m
2026-07-11 AEZ41GR CAG → FCO Jul 11, 17:35 UTCJul 11, 18:20 UTC45m
2026-07-11 AEZ811Z FCO → DCI Jul 11, 15:40 UTCJul 11, 16:25 UTC45m
2026-07-11 AEZ11GR - Jul 11, 13:40 UTCJul 11, 14:20 UTC40m
2026-07-11 AEZ500Q - Jul 11, 11:50 UTCJul 11, 12:20 UTC30m
2026-07-11 AEZ40GR - Jul 11, 07:10 UTCJul 11, 07:50 UTC40m
2026-07-11 AEZ100N - Jul 11, 05:10 UTCJul 11, 05:55 UTC45m
2026-07-10 AEZ2575 - Jul 10, 16:40 UTCJul 10, 18:00 UTC1h 20m
2026-07-10 AEZ2574 - Jul 10, 14:00 UTCJul 10, 15:30 UTC1h 30m
2026-07-10 AEZ60RG - Jul 10, 09:45 UTCJul 10, 10:30 UTC45m
2026-07-10 AEZ7117 - Jul 10, 08:20 UTCJul 10, 08:55 UTC35m
2026-07-10 AEZ20GR - Jul 10, 06:05 UTCJul 10, 06:45 UTC40m
2026-07-09 AEZ2349 - Jul 9, 23:15 UTCJul 9, 23:40 UTC25m
2026-07-09 AEZ2387 - Jul 9, 20:50 UTCJul 9, 21:20 UTC30m
2026-07-09 AEZ2126 - Jul 9, 18:20 UTCJul 9, 19:35 UTC1h 15m
2026-07-09 AEZ2127 - Jul 9, 16:15 UTCJul 9, 17:30 UTC1h 15m
2026-07-09 AEZ2386 - Jul 9, 14:35 UTCJul 9, 15:05 UTC30m
2026-07-09 AEZ514C - Jul 9, 09:50 UTCJul 9, 10:55 UTC1h 5m
2026-07-09 AEZ155Z - Jul 9, 07:35 UTCJul 9, 08:20 UTC45m
2026-07-09 AEZ516C - Jul 9, 05:05 UTCJul 9, 06:05 UTC1h 0m
2026-07-08 AEZ157Q - Jul 8, 20:00 UTCJul 8, 20:45 UTC45m
2026-07-08 AEZ519C - Jul 8, 17:40 UTCJul 8, 18:40 UTC1h 0m
2026-07-08 AEZ158C - Jul 8, 14:20 UTCJul 8, 15:15 UTC55m
2026-07-08 AEZ11GR - Jul 8, 11:15 UTCJul 8, 12:10 UTC55m
2026-07-08 AEZ8662 - Jul 8, 07:20 UTCJul 8, 08:30 UTC1h 10m
2026-07-08 AEZ389L OLB → LIN Jul 8, 05:05 UTCJul 8, 06:00 UTC55m
2026-07-07 AEZ839Y LIN → OLB Jul 7, 19:20 UTCJul 7, 20:15 UTC55m
2026-07-07 AEZ385Z OLB → LIN Jul 7, 17:20 UTCJul 7, 18:10 UTC50m
2026-07-07 AEZ2631 LIN → OLB Jul 7, 14:30 UTCJul 7, 15:30 UTC1h 0m
2026-07-07 AEZ2630 OLB → LIN Jul 7, 12:25 UTCJul 7, 13:10 UTC45m
2026-07-07 AEZ2629 - Jul 7, 09:15 UTCJul 7, 10:10 UTC55m
2026-07-07 AEZ2628 - Jul 7, 07:10 UTCJul 7, 08:00 UTC50m
2026-07-06 AEZ839Y - Jul 6, 19:15 UTCJul 6, 20:15 UTC1h 0m
2026-07-06 AEZ385Z OLB → LIN Jul 6, 17:10 UTCJul 6, 18:00 UTC50m

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

Mode-S 4D2042 frequently asked

What is Mode-S code 4D2042?
4D2042 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-MDG.
Where is Mode-S 4D2042 registered?
Mode-S code 4D2042 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2042 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2042, octal 23220102, decimal 5,054,530.
What flights does 4D2042 operate?
Mode-S 4D2042 has broadcast 20 distinct callsigns, including AEZ44LG, AEZ389L, AEZ8094, AEZ2363, AEZ29JD.