Apparatus

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sensors Mode-S transponder

4D2427

ICAO 24-bit transponder address

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

Hex
4D2427
Octal
23222047
Decimal
5,055,527
Tail
9H-WAS
Type
A21N
No current signal · last broadcast 49m ago
Flights observed
275
Distinct callsigns
20
Country
-
Last broadcast
49m ago

Last known position

Most recent position reported by Mode-S 4D2427.

Callsign history 20 distinct

Callsign Airline Flights Last seen
WZZ4NA Wizz Air 6 2026-07-24
WZZ1886 - 6 2026-07-25
WMT935 Wizz Air Malta 5 2026-06-19
WMT57WN - 5 2026-06-19
WZZ91VH - 4 2026-07-18
WZZ3403 - 4 2026-07-19
WZZ1TU - 4 2026-07-16
WZZ116 Wizz Air 4 2026-07-25
WMT9KP - 4 2026-06-20
WMT7LN - 4 2026-06-18
WMT63CN - 4 2026-06-20
WMT434 - 4 2026-06-20
WZZ963 - 3 2026-07-24
WZZ79CL Wizz Air 3 2026-07-24
WZZ75BL - 3 2026-07-11
WZZ5UW - 3 2026-07-11
WZZ5965 - 3 2026-07-09
WZZ5372 - 3 2026-07-25
WZZ4742 Wizz Air 3 2026-07-22
WZZ306 Wizz Air 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 WZZ116 AES → AES Jul 25, 21:30 UTCJul 25, 21:35 UTC5m
2026-07-25 WZZ116 AES → AES Jul 25, 17:40 UTCJul 25, 20:35 UTC2h 55m
2026-07-25 WZZ3061 DTM → BUD Jul 25, 10:55 UTCJul 25, 15:50 UTC4h 55m
2026-07-25 WZZ1886 - Jul 25, 09:25 UTCJul 25, 09:30 UTC5m
2026-07-25 WZZ1886 - Jul 25, 06:25 UTCJul 25, 08:30 UTC2h 5m
2026-07-25 WZZ5372 KUT → POZ Jul 25, 01:55 UTCJul 25, 05:20 UTC3h 25m
2026-07-24 WZZ79CL BVA → KUT Jul 24, 21:50 UTCJul 24, 22:00 UTC10m
2026-07-24 WZZ79CL BVA → KUT Jul 24, 17:55 UTCJul 24, 20:50 UTC2h 55m
2026-07-24 WZZ4118 - Jul 24, 12:10 UTCJul 24, 16:50 UTC4h 40m
2026-07-24 WZZ4NA WAW → KUT Jul 24, 10:20 UTCJul 24, 10:45 UTC25m
2026-07-24 WZZ4NA WAW → KUT Jul 24, 07:30 UTCJul 24, 09:25 UTC1h 55m
2026-07-24 WZZ963 KUT → WAW Jul 24, 03:00 UTCJul 24, 06:15 UTC3h 15m
2026-07-23 WZZ32FV VNO → KUT Jul 23, 20:05 UTCJul 23, 20:10 UTC5m
2026-07-23 WZZ32FV VNO → KUT Jul 23, 16:55 UTCJul 23, 19:15 UTC2h 20m
2026-07-23 WZZ39C KUT → VNO Jul 23, 12:10 UTCJul 23, 15:55 UTC3h 45m
2026-07-23 WZZ1886 - Jul 23, 09:10 UTCJul 23, 09:40 UTC30m
2026-07-23 WZZ1886 - Jul 23, 06:30 UTCJul 23, 08:35 UTC2h 5m
2026-07-23 WZZ5372 KUT → POZ Jul 23, 01:50 UTCJul 23, 05:20 UTC3h 30m
2026-07-22 WZZ4742 MXP → SKP Jul 22, 20:35 UTCJul 22, 21:00 UTC25m
2026-07-22 WZZ4742 MXP → SKP Jul 22, 18:45 UTCJul 22, 19:45 UTC1h 0m
2026-07-22 WZZ94EJ KUT → SKG Jul 22, 15:05 UTCJul 22, 17:35 UTC2h 30m
2026-07-22 WZZ58WN LCA → KUT Jul 22, 12:15 UTCJul 22, 13:55 UTC1h 40m
2026-07-22 WZZ4QS KUT → ATH Jul 22, 02:25 UTCJul 22, 04:55 UTC2h 30m
2026-07-21 WZZ116 - Jul 21, 22:05 UTCJul 21, 22:15 UTC10m
2026-07-21 WZZ116 - Jul 21, 18:15 UTCJul 21, 21:15 UTC3h 0m
2026-07-21 WZZ3061 KUT → BCN Jul 21, 10:55 UTCJul 21, 15:50 UTC4h 55m
2026-07-21 WZZ1886 - Jul 21, 09:25 UTCJul 21, 09:40 UTC15m
2026-07-21 WZZ1886 - Jul 21, 06:35 UTCJul 21, 08:30 UTC1h 55m
2026-07-21 WZZ5372 KUT → POZ Jul 21, 02:00 UTCJul 21, 05:30 UTC3h 30m
2026-07-20 WZZ234 - Jul 20, 20:05 UTCJul 20, 20:15 UTC10m
2026-07-20 WZZ234 - Jul 20, 17:05 UTCJul 20, 19:15 UTC2h 10m
2026-07-20 WZZ3642 KUT → FMM Jul 20, 12:15 UTCJul 20, 16:00 UTC3h 45m
2026-07-20 WZZ4NA - Jul 20, 10:20 UTCJul 20, 10:30 UTC10m
2026-07-20 WZZ4NA - Jul 20, 07:25 UTCJul 20, 09:25 UTC2h 0m
2026-07-20 WZZ963 KUT → WAW Jul 20, 02:50 UTCJul 20, 06:00 UTC3h 10m
2026-07-19 WZZ3403 - Jul 19, 21:15 UTCJul 19, 21:25 UTC10m
2026-07-19 WZZ3403 - Jul 19, 17:45 UTCJul 19, 20:20 UTC2h 35m
2026-07-19 WZZ536 KUT → CRL Jul 19, 12:05 UTCJul 19, 16:25 UTC4h 20m
2026-07-19 WZZ2CE LPL → VAR Jul 19, 07:30 UTCJul 19, 10:55 UTC3h 25m
2026-07-19 WZZ691 BGY → TIA Jul 19, 02:45 UTCJul 19, 06:20 UTC3h 35m
2026-07-18 WZZ91VH - Jul 18, 20:25 UTCJul 18, 20:40 UTC15m
2026-07-18 WZZ91VH - Jul 18, 17:00 UTCJul 18, 19:35 UTC2h 35m
2026-07-18 WZZ6658 KUT → HAM Jul 18, 11:40 UTCJul 18, 15:45 UTC4h 5m
2026-07-18 WZZ4NA - Jul 18, 10:30 UTCJul 18, 10:45 UTC15m
2026-07-18 WZZ4NA - Jul 18, 07:40 UTCJul 18, 09:40 UTC2h 0m
2026-07-18 WZZ963 KUT → WAW Jul 18, 02:55 UTCJul 18, 06:05 UTC3h 10m
2026-07-17 WZZ2RU - Jul 17, 21:34 UTCJul 17, 21:44 UTC10m
2026-07-17 WZZ2RU - Jul 17, 18:10 UTCJul 17, 20:44 UTC2h 35m
2026-07-17 WZZ4TC - Jul 17, 12:50 UTCJul 17, 16:49 UTC4h 0m
2026-07-17 WZZ6152 - Jul 17, 11:25 UTCJul 17, 11:45 UTC20m

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

Mode-S 4D2427 frequently asked

What is Mode-S code 4D2427?
4D2427 is an ICAO 24-bit transponder address. Assigned to 9H-WAS.
Is 4D2427 broadcasting right now?
No active broadcast right now. Last signal was 49m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2427, octal 23222047, decimal 5,055,527.
What flights does 4D2427 operate?
Mode-S 4D2427 has broadcast 20 distinct callsigns, including WZZ4NA, WZZ1886, WMT935, WMT57WN, WZZ91VH.