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 WZZ99TY · 10,000 ft
Flights observed
562
Distinct callsigns
20
Country
MT
Last broadcast
2h 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
WZZ2SW - 8 2026-06-28
WZZ1KM - 8 2026-06-28
WZZ6579 - 7 2026-05-29
WZZ55 Wizz Air 7 2026-04-16
WZZ82 Wizz Air 6 2026-05-29
WZZ3GV Wizz Air 6 2026-05-29
WZZ93GB - 5 2026-07-15
WZZ6GT Wizz Air 5 2026-05-28
WZZ6068 - 5 2026-07-15
WZZ3BA Wizz Air 5 2026-05-27
WZZ3170 - 5 2026-05-28
WZZ24HH - 5 2026-07-04
WZZ9XL Wizz Air 4 2026-05-04
WZZ9DM Wizz Air 4 2026-05-27
WZZ99WA - 4 2026-07-04
WZZ9926 - 4 2026-07-10
WZZ4TH Wizz Air 4 2026-05-27
WZZ4NY Wizz Air 4 2026-05-27
WZZ43ZN Wizz Air 4 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 WZZ93GB - Jul 15, 05:55 UTCJul 15, 07:10 UTC1h 15m
2026-07-15 WZZ6068 - Jul 15, 03:50 UTCJul 15, 05:00 UTC1h 10m
2026-07-14 WZZ911 NCE → WAW Jul 14, 20:05 UTCJul 14, 22:00 UTC1h 55m
2026-07-14 WZZ101 - Jul 14, 16:15 UTCJul 14, 18:35 UTC2h 20m
2026-07-14 WZZ5UC - Jul 14, 13:30 UTCJul 14, 14:50 UTC1h 20m
2026-07-14 WZZ446Z - Jul 14, 11:10 UTCJul 14, 12:35 UTC1h 25m
2026-07-14 WZZ58JY HER → WAW Jul 14, 07:25 UTCJul 14, 10:00 UTC2h 35m
2026-07-14 WZZ9107 - Jul 14, 03:55 UTCJul 14, 06:15 UTC2h 20m
2026-07-13 WZZ50ML - Jul 13, 18:35 UTCJul 13, 20:05 UTC1h 30m
2026-07-13 WZZ1TY WAW → CRL Jul 13, 15:50 UTCJul 13, 17:40 UTC1h 50m
2026-07-13 WZZ35NW - Jul 13, 13:15 UTCJul 13, 14:45 UTC1h 30m
2026-07-13 WZZ563 - Jul 13, 10:50 UTCJul 13, 12:15 UTC1h 25m
2026-07-13 WZZ911 - Jul 13, 07:05 UTCJul 13, 09:00 UTC1h 55m
2026-07-13 WZZ101 - Jul 13, 03:55 UTCJul 13, 06:01 UTC2h 5m
2026-07-12 WZZ5244 - Jul 12, 18:30 UTCJul 12, 21:00 UTC2h 30m
2026-07-12 WZZ65GB - Jul 12, 14:20 UTCJul 12, 16:55 UTC2h 35m
2026-07-12 WZZ465J GDN → KEF Jul 12, 11:20 UTCJul 12, 12:40 UTC1h 20m
2026-07-12 WZZ7WD WAW → ZAD Jul 12, 08:50 UTCJul 12, 10:10 UTC1h 20m
2026-07-12 WZZ93GB - Jul 12, 06:45 UTCJul 12, 07:55 UTC1h 10m
2026-07-12 WZZ6068 - Jul 12, 04:30 UTCJul 12, 05:40 UTC1h 10m
2026-07-11 WZZ485N - Jul 11, 21:30 UTCJul 11, 23:20 UTC1h 50m
2026-07-11 WZZ49 - Jul 11, 18:45 UTCJul 11, 20:35 UTC1h 50m
2026-07-11 WZZ98RS - Jul 11, 14:55 UTCJul 11, 17:05 UTC2h 10m
2026-07-11 WZZ40LC - Jul 11, 11:00 UTCJul 11, 13:15 UTC2h 15m
2026-07-11 WZZ28VF JTR → WAW Jul 11, 07:35 UTCJul 11, 09:55 UTC2h 20m
2026-07-11 WZZ49DP - Jul 11, 04:10 UTCJul 11, 06:30 UTC2h 20m
2026-07-10 WZZ5LW - Jul 10, 19:05 UTCJul 10, 20:45 UTC1h 40m
2026-07-10 WZZ4778 - Jul 10, 16:25 UTCJul 10, 18:05 UTC1h 40m
2026-07-10 WZZ9926 - Jul 10, 13:55 UTCJul 10, 15:20 UTC1h 25m
2026-07-10 WZZ18DM WAW → EIN Jul 10, 11:15 UTCJul 10, 12:55 UTC1h 40m
2026-07-10 WZZ21LR - Jul 10, 07:55 UTCJul 10, 10:15 UTC2h 20m
2026-07-10 WZZ9252 - Jul 10, 04:55 UTCJul 10, 06:50 UTC1h 55m
2026-07-10 WZZ4CT KEF → WAW Jul 10, 00:10 UTCJul 10, 03:45 UTC3h 35m
2026-07-09 WZZ6174 - Jul 9, 19:20 UTCJul 9, 23:05 UTC3h 45m
2026-07-09 WZZ98RS - Jul 9, 16:15 UTCJul 9, 18:10 UTC1h 55m
2026-07-09 WZZ40LC - Jul 9, 11:15 UTCJul 9, 13:20 UTC2h 5m
2026-07-09 WZZ383 - Jul 9, 07:35 UTCJul 9, 09:50 UTC2h 15m
2026-07-09 WZZ3416 - Jul 9, 04:35 UTCJul 9, 06:20 UTC1h 45m
2026-07-08 WZZ39PM - Jul 8, 15:50 UTCJul 8, 20:50 UTC5h 0m
2026-07-08 WZZ99TY - Jul 8, 09:05 UTCJul 8, 14:15 UTC5h 10m
2026-07-08 WZZ93GB NYO → WAW Jul 8, 05:50 UTCJul 8, 07:00 UTC1h 10m
2026-07-08 WZZ6068 WAW → NYO Jul 8, 03:40 UTCJul 8, 05:00 UTC1h 20m
2026-07-07 WZZ465J GDN → KEF Jul 7, 19:45 UTCJul 7, 21:05 UTC1h 20m
2026-07-07 WZZ7WD WAW → ZAD Jul 7, 17:25 UTCJul 7, 18:35 UTC1h 10m
2026-07-07 WZZ5BJ ZTH → WAW Jul 7, 13:15 UTCJul 7, 15:35 UTC2h 20m
2026-07-07 WZZ81AS WAW → ZTH Jul 7, 09:50 UTCJul 7, 12:05 UTC2h 15m
2026-07-07 WZZ488R - Jul 7, 07:10 UTCJul 7, 08:45 UTC1h 35m
2026-07-07 WZZ8PV - Jul 7, 04:15 UTCJul 7, 05:55 UTC1h 40m
2026-07-06 WZZ14TX OPO → WAW Jul 6, 17:20 UTCJul 6, 20:35 UTC3h 15m
2026-07-06 WZZ66HG WAW → OPO Jul 6, 12:35 UTCJul 6, 16:05 UTC3h 30m

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, WZZ2SW, WZZ1KM, WZZ6579, WZZ55.