Apparatus

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sensors Mode-S transponder

4D2020

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-AEJ · AIRBUS A-319

Hex
4D2020
Octal
23220040
Decimal
5,054,496
Country
MT
Tail
9H-AEJ
Type
A319
No current signal · last broadcast 7h ago
Flights observed
554
Distinct callsigns
20
Country
MT
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4D2020.

Country allocation

The ICAO 24-bit address 4D2020 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
WZZ233 - 7 2026-07-04
WMT7M Wizz Air Malta 7 2026-05-11
WMT7388 - 7 2026-05-11
WZZ983 - 6 2026-07-04
WZZ2179 - 6 2026-07-04
WZZ153 - 6 2026-07-04
WMT917 Wizz Air Malta 6 2026-05-12
WZZ976 - 5 2026-07-05
WZZ9596 - 5 2026-07-03
WZZ5771 - 5 2026-07-04
WZZ532 - 5 2026-07-05
WZZ3675 - 5 2026-07-04
WMT6UQ Wizz Air Malta 5 2026-05-13
WMT3662 Wizz Air Malta 5 2026-05-05
WMT193 Wizz Air Malta 5 2026-05-11
WMT1800 - 5 2026-05-13
WMT102 Wizz Air Malta 5 2026-05-13
WZZ97 - 4 2026-07-06
WZZ92 - 4 2026-07-06
WZZ569 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 WZZ8834 SVQ → WAW Jul 13, 15:50 UTCJul 13, 19:05 UTC3h 15m
2026-07-13 WZZ32YY - Jul 13, 11:05 UTCJul 13, 14:50 UTC3h 45m
2026-07-13 WZZ383 - Jul 13, 07:35 UTCJul 13, 09:35 UTC2h 0m
2026-07-13 WZZ3416 - Jul 13, 04:25 UTCJul 13, 06:10 UTC1h 45m
2026-07-12 WZZ5LW - Jul 12, 18:50 UTCJul 12, 20:35 UTC1h 45m
2026-07-12 WZZ4778 - Jul 12, 16:10 UTCJul 12, 17:40 UTC1h 30m
2026-07-12 WZZ9926 - Jul 12, 13:45 UTCJul 12, 15:20 UTC1h 35m
2026-07-12 WZZ18DM - Jul 12, 11:05 UTCJul 12, 12:40 UTC1h 35m
2026-07-12 WZZ22UT LPL → WAW Jul 12, 07:25 UTCJul 12, 09:35 UTC2h 10m
2026-07-12 WZZ463H - Jul 12, 04:10 UTCJul 12, 06:25 UTC2h 15m
2026-07-11 WZZ3YX VAR → VIE Jul 11, 19:05 UTCJul 11, 20:50 UTC1h 45m
2026-07-11 WZZ69 PMI → CLJ Jul 11, 16:25 UTCJul 11, 18:00 UTC1h 35m
2026-07-11 WZZ31BA - Jul 11, 13:50 UTCJul 11, 15:30 UTC1h 40m
2026-07-11 WZZ6845 WAW → DBV Jul 11, 10:50 UTCJul 11, 12:30 UTC1h 40m
2026-07-11 WZZ8911 - Jul 11, 07:20 UTCJul 11, 09:05 UTC1h 45m
2026-07-11 WZZ20VH - Jul 11, 03:45 UTCJul 11, 05:35 UTC1h 50m
2026-07-10 WZZ50ML CRL → WAW Jul 10, 18:45 UTCJul 10, 20:30 UTC1h 45m
2026-07-10 WZZ1TY - Jul 10, 16:10 UTCJul 10, 17:50 UTC1h 40m
2026-07-10 WZZ35NW - Jul 10, 13:15 UTCJul 10, 14:40 UTC1h 25m
2026-07-10 WZZ563 - Jul 10, 10:50 UTCJul 10, 12:25 UTC1h 35m
2026-07-10 WZZ3YX VAR → VIE Jul 10, 07:45 UTCJul 10, 09:30 UTC1h 45m
2026-07-10 WZZ67JK - Jul 10, 05:10 UTCJul 10, 06:35 UTC1h 25m
2026-07-09 WZZ92KE - Jul 9, 18:55 UTCJul 9, 21:55 UTC3h 0m
2026-07-09 WZZ46CG - Jul 9, 15:05 UTCJul 9, 17:45 UTC2h 40m
2026-07-09 WZZ808K TGD → KTW Jul 9, 12:50 UTCJul 9, 14:05 UTC1h 15m
2026-07-09 WZZ94HR WAW → TGD Jul 9, 10:25 UTCJul 9, 11:35 UTC1h 10m
2026-07-09 WZZ32YN TGD → WAW Jul 9, 07:45 UTCJul 9, 09:20 UTC1h 35m
2026-07-09 WZZ61CZ - Jul 9, 05:15 UTCJul 9, 06:10 UTC55m
2026-07-08 WZZ46LP - Jul 8, 18:20 UTCJul 8, 21:10 UTC2h 50m
2026-07-08 WZZ4950 - Jul 8, 13:20 UTCJul 8, 16:15 UTC2h 55m
2026-07-08 WZZ830N - Jul 8, 11:10 UTCJul 8, 12:20 UTC1h 10m
2026-07-08 WZZ442V - Jul 8, 08:50 UTCJul 8, 10:05 UTC1h 15m
2026-07-08 WZZ39FE - Jul 8, 06:40 UTCJul 8, 07:55 UTC1h 15m
2026-07-08 WZZ33YN - Jul 8, 04:05 UTCJul 8, 05:30 UTC1h 25m
2026-07-07 WZZ636Z - Jul 7, 19:35 UTCJul 7, 22:45 UTC3h 10m
2026-07-07 WZZ20KU KTW → KEF Jul 7, 14:20 UTCJul 7, 18:35 UTC4h 15m
2026-07-07 WZZ5MD EIN → KTW Jul 7, 11:30 UTCJul 7, 12:50 UTC1h 20m
2026-07-07 WZZ4SM - Jul 7, 08:55 UTCJul 7, 10:35 UTC1h 40m
2026-07-07 WZZ126J - Jul 7, 06:45 UTCJul 7, 07:55 UTC1h 10m
2026-07-07 WZZ6901 WRO → DTM Jul 7, 04:25 UTCJul 7, 05:40 UTC1h 15m
2026-07-06 WZZ1714 - Jul 6, 21:50 UTCJul 7, 00:00 UTC2h 10m
2026-07-06 WZZ43DZ WRO → CTA Jul 6, 17:55 UTCJul 6, 20:00 UTC2h 5m
2026-07-06 WZZ5005 - Jul 6, 15:10 UTCJul 6, 16:50 UTC1h 40m
2026-07-06 WZZ8XW - Jul 6, 12:30 UTCJul 6, 14:10 UTC1h 40m
2026-07-06 WZZ92 BUD → WRO Jul 6, 10:25 UTCJul 6, 11:10 UTC45m
2026-07-06 WZZ1071 WRO → BUD Jul 6, 08:40 UTCJul 6, 09:25 UTC45m
2026-07-06 WZZ569 - Jul 6, 06:25 UTCJul 6, 07:45 UTC1h 20m
2026-07-06 WZZ97 - Jul 6, 04:15 UTCJul 6, 05:30 UTC1h 15m
2026-07-05 WZZ1702 - Jul 5, 21:35 UTCJul 5, 23:00 UTC1h 25m
2026-07-05 WZZ87 - Jul 5, 19:10 UTCJul 5, 20:25 UTC1h 15m

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

Mode-S 4D2020 frequently asked

What is Mode-S code 4D2020?
4D2020 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-AEJ.
Where is Mode-S 4D2020 registered?
Mode-S code 4D2020 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2020 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2020, octal 23220040, decimal 5,054,496.
What flights does 4D2020 operate?
Mode-S 4D2020 has broadcast 20 distinct callsigns, including WZZ233, WMT7M, WMT7388, WZZ983, WZZ2179.