Apparatus

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sensors Mode-S transponder

4D24B5

ICAO 24-bit transponder address

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

Hex
4D24B5
Octal
23222265
Decimal
5,055,669
Tail
9H-WDU
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
235
Distinct callsigns
20
Country
-
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4D24B5.

Callsign history 20 distinct

Callsign Airline Flights Last seen
WMT6WW - 5 2026-07-24
WMT9ZH - 4 2026-07-24
WMT943 - 4 2026-07-24
WMT6767 Wizz Air Malta 4 2026-07-23
WMT5454 Wizz Air Malta 4 2026-07-24
WMT3235 - 4 2026-07-07
WMT7SN - 3 2026-07-15
WMT4763 - 3 2026-07-20
WMT3245 - 3 2026-07-23
WMT314 Wizz Air Malta 3 2026-07-20
WMT271 - 3 2026-07-07
WMT2328 - 3 2026-07-10
WMT132 - 3 2026-07-10
WZZ43Z - 2 2026-07-05
WZZ3072 - 2 2026-07-05
WZZ2YU - 2 2026-07-01
WZZ23YT - 2 2026-07-01
WMT9721 - 2 2026-07-11
WMT8JP - 2 2026-06-25
WMT8CQ - 2 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 WMT9D MXP → VLC Jul 25, 04:20 UTCJul 25, 05:15 UTC55m
2026-07-24 WMT164 LTN → MXP Jul 24, 20:15 UTCJul 24, 21:45 UTC1h 30m
2026-07-24 WMT6WW - Jul 24, 17:15 UTCJul 24, 19:05 UTC1h 50m
2026-07-24 WMT943 - Jul 24, 15:25 UTCJul 24, 16:20 UTC55m
2026-07-24 WMT9ZH - Jul 24, 13:25 UTCJul 24, 14:15 UTC50m
2026-07-24 WMT623 OTP → OTP Jul 24, 08:10 UTCJul 24, 11:45 UTC3h 35m
2026-07-24 WMT5454 MXP → MXP Jul 24, 06:50 UTCJul 24, 06:55 UTC5m
2026-07-24 WMT5454 MXP → MXP Jul 24, 04:05 UTCJul 24, 05:55 UTC1h 50m
2026-07-23 WMT6767 DTM → BNX Jul 23, 20:35 UTCJul 23, 22:10 UTC1h 35m
2026-07-23 WMT6WW - Jul 23, 17:40 UTCJul 23, 19:30 UTC1h 50m
2026-07-23 WMT943 - Jul 23, 15:25 UTCJul 23, 16:15 UTC50m
2026-07-23 WMT9ZH - Jul 23, 13:20 UTCJul 23, 14:00 UTC40m
2026-07-23 WMT3245 - Jul 23, 08:05 UTCJul 23, 10:00 UTC1h 55m
2026-07-23 WMT649 VCE → MAD Jul 23, 04:20 UTCJul 23, 06:30 UTC2h 10m
2026-07-22 WMT6084 - Jul 22, 19:25 UTCJul 22, 22:55 UTC3h 30m
2026-07-22 WMT294 BVA → TSR Jul 22, 14:40 UTCJul 22, 17:45 UTC3h 5m
2026-07-22 WMT2AB - Jul 22, 11:10 UTCJul 22, 12:05 UTC55m
2026-07-22 WMT14KD - Jul 22, 04:10 UTCJul 22, 05:25 UTC1h 15m
2026-07-21 WMT4493 BCN → VCE Jul 21, 22:05 UTCJul 21, 23:25 UTC1h 20m
2026-07-21 WMT1LN VCE → BCN Jul 21, 18:50 UTCJul 21, 20:20 UTC1h 30m
2026-07-21 WMT4902 MXP → TGD Jul 21, 16:15 UTCJul 21, 17:40 UTC1h 25m
2026-07-21 WMT3502 LTN → TSR Jul 21, 14:10 UTCJul 21, 15:20 UTC1h 10m
2026-07-21 WMT7286 - Jul 21, 08:30 UTCJul 21, 11:45 UTC3h 15m
2026-07-21 WMT676 - Jul 21, 04:05 UTCJul 21, 06:45 UTC2h 40m
2026-07-20 WMT2WP - Jul 20, 20:45 UTCJul 20, 22:50 UTC2h 5m
2026-07-20 WMT585 - Jul 20, 17:00 UTCJul 20, 19:40 UTC2h 40m
2026-07-20 WMT314 CLJ → RAK Jul 20, 13:50 UTCJul 20, 15:50 UTC2h 0m
2026-07-20 WMT4763 - Jul 20, 10:55 UTCJul 20, 12:40 UTC1h 45m
2026-07-20 WMT8CK - Jul 20, 07:15 UTCJul 20, 09:15 UTC2h 0m
2026-07-20 WMT2JG - Jul 20, 04:10 UTCJul 20, 06:15 UTC2h 5m
2026-07-19 WMT6767 - Jul 19, 21:20 UTCJul 19, 22:50 UTC1h 30m
2026-07-19 WMT6WW - Jul 19, 18:00 UTCJul 19, 20:00 UTC2h 0m
2026-07-19 WMT314 CLJ → RAK Jul 19, 14:45 UTCJul 19, 16:45 UTC2h 0m
2026-07-19 WMT4763 - Jul 19, 11:40 UTCJul 19, 13:20 UTC1h 40m
2026-07-19 WMT3245 - Jul 19, 08:20 UTCJul 19, 10:10 UTC1h 50m
2026-07-19 WMT649 - Jul 19, 04:25 UTCJul 19, 06:40 UTC2h 15m
2026-07-18 WMT6767 - Jul 18, 20:50 UTCJul 18, 22:30 UTC1h 40m
2026-07-18 WMT6WW TSF → LTN Jul 18, 18:00 UTCJul 18, 19:50 UTC1h 50m
2026-07-18 WMT943 - Jul 18, 15:20 UTCJul 18, 16:15 UTC55m
2026-07-18 WMT9ZH - Jul 18, 13:25 UTCJul 18, 14:10 UTC45m
2026-07-18 WMT7286 - Jul 18, 08:40 UTCJul 18, 11:40 UTC3h 0m
2026-07-18 WMT676 - Jul 18, 04:00 UTCJul 18, 06:45 UTC2h 45m
2026-07-17 WMT6767 LTN → VCE Jul 17, 20:40 UTCJul 17, 22:15 UTC1h 35m
2026-07-17 WMT6WW - Jul 17, 17:25 UTCJul 17, 19:20 UTC1h 55m
2026-07-17 WMT943 - Jul 17, 15:29 UTCJul 17, 16:19 UTC50m
2026-07-17 WMT9ZH - Jul 17, 13:15 UTCJul 17, 14:00 UTC45m
2026-07-17 WMT623 OTP → OTP Jul 17, 08:10 UTCJul 17, 11:39 UTC3h 30m
2026-07-17 WMT5454 MXP → MXP Jul 17, 07:00 UTCJul 17, 07:05 UTC5m
2026-07-17 WMT5454 MXP → MXP Jul 17, 04:04 UTCJul 17, 06:05 UTC2h 0m
2026-07-16 WMT7MP ALC → VCE Jul 16, 21:50 UTCJul 16, 23:35 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-WDU page for operator, model, and routing details .

Mode-S 4D24B5 frequently asked

What is Mode-S code 4D24B5?
4D24B5 is an ICAO 24-bit transponder address. Assigned to 9H-WDU.
Is 4D24B5 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D24B5, octal 23222265, decimal 5,055,669.
What flights does 4D24B5 operate?
Mode-S 4D24B5 has broadcast 20 distinct callsigns, including WMT6WW, WMT9ZH, WMT943, WMT6767, WMT5454.