Apparatus

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sensors Mode-S transponder

4D20F3

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D20F3
Octal
23220363
Decimal
5,054,707
Country
MT
Tail
9H-WMM
Type
A21N
Broadcasting now · callsign WMT7237 · 9,100 ft
Flights observed
580
Distinct callsigns
20
Country
MT
Last broadcast
50m ago

Current position

4D20F3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D20F3 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
WMT5959 - 9 2026-06-04
WMT283 Wizz Air Malta 9 2026-06-04
WZZ1VA Wizz Air 8 2026-05-20
WMT956 Wizz Air Malta 8 2026-06-04
WMT7603 - 8 2026-06-04
WZZ9HY Wizz Air 7 2026-05-16
WZZ6GT Wizz Air 7 2026-05-17
WZZ3170 - 7 2026-05-17
WZZ6579 - 6 2026-05-12
WZZ6255 - 6 2026-05-12
WZZ5AN Wizz Air 6 2026-05-17
WZZ3XE Wizz Air 6 2026-05-20
WZZ2SW Wizz Air 6 2026-05-15
WZZ1KM Wizz Air 6 2026-05-15
WZZ1223 - 6 2026-05-20
WMT3RN Wizz Air Malta 6 2026-06-02
WMT288 Wizz Air Malta 6 2026-06-02
WZZ9415 - 5 2026-05-17
WZZ94 Wizz Air 5 2026-05-17
WZZ922 - 5 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 WMT7237 - Jul 14, 08:15 UTCJul 14, 08:45 UTC30m
2026-07-14 WMT4407 - Jul 14, 04:55 UTCJul 14, 06:45 UTC1h 50m
2026-07-13 WMT3MA - Jul 13, 21:25 UTCJul 13, 23:00 UTC1h 35m
2026-07-13 WMT454 - Jul 13, 18:20 UTCJul 13, 19:40 UTC1h 20m
2026-07-13 WMT3358 LMP → MXP Jul 13, 14:55 UTCJul 13, 16:45 UTC1h 50m
2026-07-13 WMT3630 MXP → LMP Jul 13, 12:25 UTCJul 13, 14:00 UTC1h 35m
2026-07-13 WMT132 - Jul 13, 09:55 UTCJul 13, 10:40 UTC45m
2026-07-13 WMT1097 - Jul 13, 08:10 UTCJul 13, 08:45 UTC35m
2026-07-13 WMT642 - Jul 13, 06:40 UTCJul 13, 07:05 UTC25m
2026-07-13 WMT2328 - Jul 13, 04:35 UTCJul 13, 05:25 UTC50m
2026-07-12 WMT5PL BUD → MXP Jul 12, 20:15 UTCJul 12, 21:25 UTC1h 10m
2026-07-12 WMT7SR MXP → BUD Jul 12, 18:15 UTCJul 12, 19:25 UTC1h 10m
2026-07-12 WMT3235 ALC → MXP Jul 12, 15:40 UTCJul 12, 17:15 UTC1h 35m
2026-07-12 WMT4LN - Jul 12, 12:10 UTCJul 12, 14:05 UTC1h 55m
2026-07-12 WMT6753 - Jul 12, 08:25 UTCJul 12, 10:40 UTC2h 15m
2026-07-12 WMT8JT - Jul 12, 04:45 UTCJul 12, 07:20 UTC2h 35m
2026-07-11 WMT1001 - Jul 11, 18:15 UTCJul 11, 22:35 UTC4h 20m
2026-07-11 WMT5YV - Jul 11, 12:55 UTCJul 11, 16:15 UTC3h 20m
2026-07-11 WMT68LU - Jul 11, 08:50 UTCJul 11, 10:55 UTC2h 5m
2026-07-11 WMT1BH - Jul 11, 05:25 UTCJul 11, 07:45 UTC2h 20m
2026-07-10 WMT1917 - Jul 10, 20:35 UTCJul 10, 22:30 UTC1h 55m
2026-07-10 WMT467 - Jul 10, 17:05 UTCJul 10, 19:20 UTC2h 15m
2026-07-10 WMT5798 - Jul 10, 13:35 UTCJul 10, 15:25 UTC1h 50m
2026-07-10 WMT2CL - Jul 10, 10:35 UTCJul 10, 12:15 UTC1h 40m
2026-07-10 WMT1RV - Jul 10, 07:05 UTCJul 10, 09:05 UTC2h 0m
2026-07-10 WMT4078 - Jul 10, 04:15 UTCJul 10, 06:00 UTC1h 45m
2026-07-09 WMT715 - Jul 9, 19:45 UTCJul 9, 21:25 UTC1h 40m
2026-07-09 WMT2NS - Jul 9, 16:45 UTCJul 9, 18:50 UTC2h 5m
2026-07-09 WMT39FA - Jul 9, 13:45 UTCJul 9, 15:20 UTC1h 35m
2026-07-09 WMT8917 - Jul 9, 11:05 UTCJul 9, 12:40 UTC1h 35m
2026-07-09 WMT7474 - Jul 9, 08:35 UTCJul 9, 10:00 UTC1h 25m
2026-07-09 WMT2977 - Jul 9, 05:45 UTCJul 9, 07:10 UTC1h 25m
2026-07-08 WMT2257 - Jul 8, 18:55 UTCJul 8, 20:50 UTC1h 55m
2026-07-08 WMT1ZY - Jul 8, 15:30 UTCJul 8, 17:30 UTC2h 0m
2026-07-08 WMT1GS - Jul 8, 10:20 UTCJul 8, 14:10 UTC3h 50m
2026-07-08 WMT8EM - Jul 8, 04:45 UTCJul 8, 08:40 UTC3h 55m
2026-07-07 WMT5320 VLC → FCO Jul 7, 20:50 UTCJul 7, 22:25 UTC1h 35m
2026-07-07 WMT7840 - Jul 7, 18:15 UTCJul 7, 19:50 UTC1h 35m
2026-07-07 WMT8VQ - Jul 7, 14:00 UTCJul 7, 16:00 UTC2h 0m
2026-07-07 WMT1WA - Jul 7, 10:25 UTCJul 7, 12:50 UTC2h 25m
2026-07-07 WMT387 - Jul 7, 06:40 UTCJul 7, 08:40 UTC2h 0m
2026-07-07 WMT5JY - Jul 7, 03:40 UTCJul 7, 05:25 UTC1h 45m
2026-07-06 WMT9706 - Jul 6, 21:45 UTCJul 6, 23:20 UTC1h 35m
2026-07-06 WMT5089 - Jul 6, 19:20 UTCJul 6, 20:35 UTC1h 15m
2026-07-06 WMT5682 - Jul 6, 17:05 UTCJul 6, 18:20 UTC1h 15m
2026-07-06 WMT499 DTM → OTP Jul 6, 14:45 UTCJul 6, 15:50 UTC1h 5m
2026-07-06 WMT8TG - Jul 6, 11:30 UTCJul 6, 12:40 UTC1h 10m
2026-07-06 WMT372 - Jul 6, 09:25 UTCJul 6, 10:25 UTC1h 0m
2026-07-06 WMT6ZK - Jul 6, 06:20 UTCJul 6, 07:50 UTC1h 30m
2026-07-06 WMT3EC - Jul 6, 03:50 UTCJul 6, 05:10 UTC1h 20m

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

Mode-S 4D20F3 frequently asked

What is Mode-S code 4D20F3?
4D20F3 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-WMM.
Where is Mode-S 4D20F3 registered?
Mode-S code 4D20F3 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D20F3 broadcasting right now?
Yes. Mode-S 4D20F3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D20F3, octal 23220363, decimal 5,054,707.
What flights does 4D20F3 operate?
Mode-S 4D20F3 has broadcast 20 distinct callsigns, including WMT5959, WMT283, WZZ1VA, WMT956, WMT7603.