Apparatus

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sensors Mode-S transponder

4D204A

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-WNW · AIRBUS A-321neo

Hex
4D204A
Octal
23220112
Decimal
5,054,538
Country
MT
Tail
9H-WNW
Type
A21N
Broadcasting now · callsign WZZ671 · 5,550 ft
Flights observed
303
Distinct callsigns
20
Country
MT
Last broadcast
1h ago

Current position

4D204A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D204A 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
WZZ6255 - 8 2026-05-29
WZZ6579 - 7 2026-05-29
WZZ55 Wizz Air 7 2026-04-16
WZZ2SW Wizz Air 7 2026-05-29
WZZ1KM Wizz Air 7 2026-05-29
WZZ82 Wizz Air 6 2026-05-29
WZZ3GV Wizz Air 6 2026-05-29
WZZ6GT Wizz Air 5 2026-05-28
WZZ3BA Wizz Air 5 2026-05-27
WZZ3170 - 5 2026-05-28
WZZ9XL Wizz Air 4 2026-05-04
WZZ9DM Wizz Air 4 2026-05-27
WZZ4TH Wizz Air 4 2026-05-27
WZZ4NY Wizz Air 4 2026-05-27
WZZ43ZN Wizz Air 4 2026-05-27
WZZ40 Wizz Air 4 2026-04-16
WZZ388 Wizz Air 4 2026-05-27
WZZ3606 - 4 2026-04-30
WZZ21AS Wizz Air 4 2026-05-04
WZZ178 - 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 WZZ488 BUD → LTN May 30, 16:45 UTCMay 30, 18:30 UTC1h 45m
2026-05-30 WZZ9HY DTM → BEG May 30, 14:00 UTCMay 30, 15:45 UTC1h 45m
2026-05-30 WZZ1VA BEG → DTM May 30, 11:05 UTCMay 30, 12:55 UTC1h 50m
2026-05-30 WZZ3AD PMO → BEG May 30, 08:25 UTCMay 30, 09:50 UTC1h 25m
2026-05-30 WZZ44QV BEG → PMO May 30, 05:15 UTCMay 30, 06:35 UTC1h 20m
2026-05-29 WZZ6579 - May 29, 21:50 UTCMay 29, 23:05 UTC1h 15m
2026-05-29 WZZ6255 - May 29, 19:20 UTCMay 29, 20:35 UTC1h 15m
2026-05-29 WZZ82 BEG → EIN May 29, 17:05 UTCMay 29, 18:25 UTC1h 20m
2026-05-29 WZZ3GV CLJ → CRL May 29, 14:40 UTCMay 29, 16:10 UTC1h 30m
2026-05-29 WZZ25LL BSL → BEG May 29, 11:45 UTCMay 29, 13:15 UTC1h 30m
2026-05-29 WZZ909 BER → KUT May 29, 09:05 UTCMay 29, 10:40 UTC1h 35m
2026-05-29 WZZ2SW FMM → BEG May 29, 06:40 UTCMay 29, 08:00 UTC1h 20m
2026-05-29 WZZ1KM BEG → FMM May 29, 04:30 UTCMay 29, 05:50 UTC1h 20m
2026-05-28 WZZ6579 - May 28, 22:15 UTCMay 28, 23:35 UTC1h 20m
2026-05-28 WZZ6255 BEG → BGY May 28, 19:20 UTCMay 28, 20:45 UTC1h 25m
2026-05-28 WZZ3170 MLA → BEG May 28, 16:45 UTCMay 28, 18:25 UTC1h 40m
2026-05-28 WZZ6GT SKP → MMX May 28, 14:15 UTCMay 28, 16:00 UTC1h 45m
2026-05-28 WZZ82 BEG → EIN May 28, 11:35 UTCMay 28, 13:00 UTC1h 25m
2026-05-28 WZZ3GV CLJ → CRL May 28, 09:10 UTCMay 28, 10:40 UTC1h 30m
2026-05-28 WZZ2SW FMM → BEG May 28, 06:50 UTCMay 28, 08:10 UTC1h 20m
2026-05-28 WZZ1KM BEG → FMM May 28, 04:30 UTCMay 28, 05:50 UTC1h 20m
2026-05-27 WZZ9415 NCE → BEG May 27, 22:30 UTCMay 28, 00:00 UTC1h 30m
2026-05-27 WZZ922 BEG → NCE May 27, 20:05 UTCMay 27, 21:40 UTC1h 35m
2026-05-27 WZZ9DM FMM → BEG May 27, 16:35 UTCMay 27, 17:55 UTC1h 20m
2026-05-27 WZZ388 DSA → OTP May 27, 14:20 UTCMay 27, 15:45 UTC1h 25m
2026-05-27 WZZ3BA FCO → BEG May 27, 12:10 UTCMay 27, 13:25 UTC1h 15m
2026-05-27 WZZ4NY BEG → FCO May 27, 09:20 UTCMay 27, 10:35 UTC1h 15m
2026-05-27 WZZ4TH DSA → POZ May 27, 06:29 UTCMay 27, 08:00 UTC1h 30m
2026-05-27 WZZ43ZN BEG → FKB May 27, 04:04 UTCMay 27, 05:40 UTC1h 35m
2026-05-26 WZZ6579 - May 26, 21:59 UTCMay 26, 23:10 UTC1h 10m
2026-05-26 WZZ6255 BEG → BGY May 26, 19:20 UTCMay 26, 20:40 UTC1h 20m
2026-05-26 WZZ3170 MLA → BEG May 26, 16:40 UTCMay 26, 18:24 UTC1h 45m
2026-05-26 WZZ6GT SKP → MMX May 26, 14:05 UTCMay 26, 15:39 UTC1h 35m
2026-05-26 WZZ3203 FDH → BEG May 26, 11:09 UTCMay 26, 12:35 UTC1h 25m
2026-05-26 WZZ97TV BEG → FDH May 26, 09:04 UTCMay 26, 10:25 UTC1h 20m
2026-05-26 WZZ2SW FMM → BEG May 26, 06:54 UTCMay 26, 08:15 UTC1h 20m
2026-05-26 WZZ1KM BEG → FMM May 26, 04:30 UTCMay 26, 05:49 UTC1h 20m
2026-05-25 WZZ6579 BGY → BEG May 25, 23:49 UTCMay 26, 01:05 UTC1h 15m
2026-05-25 WZZ6255 BEG → BGY May 25, 20:09 UTCMay 25, 21:40 UTC1h 30m
2026-05-25 WZZ82 BEG → EIN May 25, 17:25 UTCMay 25, 18:45 UTC1h 20m
2026-05-25 WZZ3GV CLJ → CRL May 25, 14:35 UTCMay 25, 16:00 UTC1h 25m
2026-05-25 WZZ25LL BSL → BEG May 25, 11:30 UTCMay 25, 13:00 UTC1h 30m
2026-05-25 WZZ909 BER → KUT May 25, 09:00 UTCMay 25, 10:30 UTC1h 30m
2026-05-25 WZZ2SW FMM → BEG May 25, 06:50 UTCMay 25, 08:05 UTC1h 15m
2026-05-25 WZZ1KM BEG → FMM May 25, 04:30 UTCMay 25, 05:45 UTC1h 15m
2026-05-24 WZZ9198 - May 24, 20:40 UTCMay 24, 21:45 UTC1h 5m
2026-05-24 WZZ8RR BEG → BCN May 24, 17:20 UTCMay 24, 19:15 UTC1h 55m
2026-05-24 WZZ2039 KRK → VNO May 24, 13:45 UTCMay 24, 15:55 UTC2h 10m
2026-05-24 WZZ4JN BEG → BVA May 24, 10:45 UTCMay 24, 12:45 UTC2h 0m
2026-05-24 WZZ3CR EIN → BEG May 24, 07:30 UTCMay 24, 09:25 UTC1h 55m

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

Mode-S 4D204A frequently asked

What is Mode-S code 4D204A?
4D204A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-WNW.
Where is Mode-S 4D204A registered?
Mode-S code 4D204A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D204A broadcasting right now?
Yes. Mode-S 4D204A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D204A, octal 23220112, decimal 5,054,538.
What flights does 4D204A operate?
Mode-S 4D204A has broadcast 20 distinct callsigns, including WZZ6255, WZZ6579, WZZ55, WZZ2SW, WZZ1KM.