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
Transponder active on ground
Flights observed
631
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 22:00 UTC

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
WZZ93 - 4 2026-07-21
WZZ92 - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WZZ168 - Jul 26, 19:10 UTCJul 26, 22:00 UTC2h 50m
2026-07-26 WZZ2705 DEB → EIN Jul 26, 14:30 UTCJul 26, 17:45 UTC3h 15m
2026-07-26 WZZ4QA TLV → KRK Jul 26, 09:15 UTCJul 26, 12:40 UTC3h 25m
2026-07-26 WZZ64 EIN → WRO Jul 26, 03:55 UTCJul 26, 06:50 UTC2h 56m
2026-07-25 WZZ85 FCO → CTA Jul 25, 20:45 UTCJul 25, 22:20 UTC1h 35m
2026-07-25 WZZ3384 KRK → NCE Jul 25, 17:30 UTCJul 25, 19:35 UTC2h 5m
2026-07-25 WZZ522 VIE → OHD Jul 25, 15:05 UTCJul 25, 16:35 UTC1h 30m
2026-07-25 WZZ65 TLV → VIE Jul 25, 11:10 UTCJul 25, 12:45 UTC1h 35m
2026-07-25 WZZ8EU BOJ → LUZ Jul 25, 07:30 UTCJul 25, 09:40 UTC2h 10m
2026-07-25 WZZ194 KRK → BCN Jul 25, 03:35 UTCJul 25, 06:05 UTC2h 30m
2026-07-24 WZZ99GV SPU → KRK Jul 24, 20:05 UTCJul 24, 21:15 UTC1h 10m
2026-07-24 WZZ2073 KRK → AGP Jul 24, 17:25 UTCJul 24, 18:15 UTC50m
2026-07-24 WZZ5860 - Jul 24, 14:50 UTCJul 24, 16:30 UTC1h 40m
2026-07-24 WZZ43 LTN → BUD Jul 24, 11:45 UTCJul 24, 13:50 UTC2h 5m
2026-07-24 WZZ341 VIE → NCE Jul 24, 07:50 UTCJul 24, 10:40 UTC2h 50m
2026-07-24 WZZ8Z KRK → VLC Jul 24, 03:35 UTCJul 24, 06:20 UTC2h 45m
2026-07-23 WZZ664 MXP → KRK Jul 23, 20:10 UTCJul 23, 21:40 UTC1h 30m
2026-07-23 WZZ4295 KRK → MXP Jul 23, 17:45 UTCJul 23, 19:15 UTC1h 30m
2026-07-23 WZZ907 TLL → KRK Jul 23, 15:20 UTCJul 23, 16:55 UTC1h 35m
2026-07-23 WZZ1JR KRK → TLL Jul 23, 13:00 UTCJul 23, 14:30 UTC1h 30m
2026-07-23 WZZ55 SVG → KRK Jul 23, 09:15 UTCJul 23, 11:20 UTC2h 5m
2026-07-23 WZZ40 CLJ → BCN Jul 23, 05:55 UTCJul 23, 08:10 UTC2h 15m
2026-07-23 WZZ405 MAD → KTW Jul 23, 04:05 UTCJul 23, 04:55 UTC50m
2026-07-22 WZZ25QY TOS → GDN Jul 22, 21:40 UTCJul 22, 23:50 UTC2h 10m
2026-07-22 WZZ94WT GDN → TOS Jul 22, 18:15 UTCJul 22, 20:25 UTC2h 10m
2026-07-22 WZZ63KR DTM → GDN Jul 22, 16:10 UTCJul 22, 17:15 UTC1h 5m
2026-07-22 WZZ881 - Jul 22, 13:10 UTCJul 22, 15:15 UTC2h 5m
2026-07-22 WZZ8PZ - Jul 22, 11:15 UTCJul 22, 12:00 UTC45m
2026-07-22 WZZ37KJ GDN → ARN Jul 22, 03:55 UTCJul 22, 04:55 UTC1h 0m
2026-07-21 WZZ671 KRK → BHX Jul 21, 19:25 UTCJul 21, 22:35 UTC3h 10m
2026-07-21 WZZ93 - Jul 21, 15:15 UTCJul 21, 18:25 UTC3h 10m
2026-07-21 WZZ48CN HAU → GDN Jul 21, 12:10 UTCJul 21, 13:30 UTC1h 20m
2026-07-21 WZZ21WX - Jul 21, 09:55 UTCJul 21, 11:15 UTC1h 20m
2026-07-21 WZZ361 GDN → BGO Jul 21, 07:20 UTCJul 21, 09:05 UTC1h 45m
2026-07-21 WZZ6425 GDN → TRD Jul 21, 04:35 UTCJul 21, 06:10 UTC1h 35m
2026-07-20 WZZ4MN BRS → KTW Jul 20, 19:30 UTCJul 20, 22:05 UTC2h 35m
2026-07-20 WZZ104 TRF → TRF Jul 20, 15:25 UTCJul 20, 18:05 UTC2h 40m
2026-07-20 WZZ408 PRG → KUT Jul 20, 13:35 UTCJul 20, 14:10 UTC35m
2026-07-20 WZZ2DU MLA → WAW Jul 20, 10:25 UTCJul 20, 12:50 UTC2h 25m
2026-07-20 WZZ8KU WAW → MLA Jul 20, 05:10 UTCJul 20, 07:45 UTC2h 35m
2026-07-19 WZZ5 BUD → FCO Jul 19, 18:50 UTCJul 19, 20:25 UTC1h 35m
2026-07-19 WZZ9 WAW → BCN Jul 19, 15:55 UTCJul 19, 17:45 UTC1h 50m
2026-07-19 WZZ31BA DBV → WAW Jul 19, 13:10 UTCJul 19, 14:40 UTC1h 30m
2026-07-19 WZZ6845 - Jul 19, 10:25 UTCJul 19, 12:05 UTC1h 40m
2026-07-19 WZZ911 - Jul 19, 07:40 UTCJul 19, 09:25 UTC1h 45m
2026-07-19 WZZ101 WAW → NCE Jul 19, 03:55 UTCJul 19, 06:35 UTC2h 40m
2026-07-18 WZZ9765 - Jul 18, 20:15 UTCJul 18, 22:40 UTC2h 25m
2026-07-18 WZZ9AH - Jul 18, 15:25 UTCJul 18, 18:15 UTC2h 50m
2026-07-18 WZZ415 CLJ → DTM Jul 18, 10:35 UTCJul 18, 11:25 UTC50m
2026-07-18 WZZ2050 - Jul 18, 08:00 UTCJul 18, 09:45 UTC1h 45m

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?
Mode-S 4D2020 is currently broadcasting from the ground.
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.