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sensors Mode-S transponder

4D20C0

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D20C0
Octal
23220300
Decimal
5,054,656
Country
MT
Tail
9H-WML
Type
A21N
Broadcasting now · callsign WMT5454 · 35,025 ft
Flights observed
612
Distinct callsigns
20
Country
MT
Last broadcast
Jul 26, 20:45 UTC

Current position

4D20C0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D20C0 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
WMT956 - 12 2026-07-21
WMT7603 - 12 2026-07-21
WMT5959 - 12 2026-07-21
WMT283 Wizz Air Malta 12 2026-07-21
WMT936 Wizz Air Malta 11 2026-07-20
WMT376 - 11 2026-07-20
WMT7389 - 10 2026-07-20
WMT2610 - 10 2026-07-20
WMT8508 Wizz Air Malta 9 2026-07-23
WMT6US - 9 2026-07-23
WMT4ER - 9 2026-07-23
WMT226 - 9 2026-07-23
WMT3RN Wizz Air Malta 7 2026-07-21
WMT288 - 7 2026-07-21
WMT191 Wizz Air Malta 7 2026-05-16
WMT8917 - 6 2026-06-24
WMT7474 - 6 2026-06-24
WMT537 Wizz Air Malta 6 2026-07-25
WMT511 Wizz Air Malta 6 2026-07-25
WMT39FA - 6 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WMT92DG - Jul 26, 19:40 UTCJul 26, 20:45 UTC1h 5m
2026-07-26 WMT8AT - Jul 26, 16:35 UTCJul 26, 18:10 UTC1h 35m
2026-07-26 WMT24GD - Jul 26, 13:35 UTCJul 26, 14:50 UTC1h 15m
2026-07-26 WMT4GH - Jul 26, 08:30 UTCJul 26, 11:50 UTC3h 20m
2026-07-26 WMT7705 - Jul 26, 03:55 UTCJul 26, 06:40 UTC2h 46m
2026-07-25 WMT511 AGP → VIE Jul 25, 21:50 UTCJul 26, 00:00 UTC2h 10m
2026-07-25 WMT537 TSF → IAS Jul 25, 17:15 UTCJul 25, 20:25 UTC3h 10m
2026-07-25 WMT5798 HER → FCO Jul 25, 13:25 UTCJul 25, 15:25 UTC2h 0m
2026-07-25 WMT2CL FCO → HER Jul 25, 10:25 UTCJul 25, 12:00 UTC1h 35m
2026-07-25 WMT986 TSF → OTP Jul 25, 06:50 UTCJul 25, 08:35 UTC1h 45m
2026-07-25 WMT9EW - Jul 25, 04:10 UTCJul 25, 05:55 UTC1h 45m
2026-07-24 WMT9059 - Jul 24, 22:20 UTCJul 25, 00:15 UTC1h 55m
2026-07-24 WMT3ZJ - Jul 24, 19:25 UTCJul 24, 21:10 UTC1h 45m
2026-07-24 WMT631 - Jul 24, 16:05 UTCJul 24, 17:45 UTC1h 40m
2026-07-24 WMT7YE - Jul 24, 13:15 UTCJul 24, 14:45 UTC1h 30m
2026-07-24 WMT132 - Jul 24, 10:15 UTCJul 24, 11:05 UTC50m
2026-07-24 WMT1097 - Jul 24, 08:20 UTCJul 24, 08:45 UTC25m
2026-07-24 WMT642 IAS → LPL Jul 24, 06:55 UTCJul 24, 07:20 UTC25m
2026-07-24 WMT2328 - Jul 24, 04:50 UTCJul 24, 05:40 UTC50m
2026-07-23 WMT1RB - Jul 23, 21:00 UTCJul 23, 23:35 UTC2h 35m
2026-07-23 WMT8HM TIA → VRN Jul 23, 17:10 UTCJul 23, 19:10 UTC2h 0m
2026-07-23 WMT411 - Jul 23, 13:50 UTCJul 23, 15:40 UTC1h 50m
2026-07-23 WMT6US - Jul 23, 11:30 UTCJul 23, 12:50 UTC1h 20m
2026-07-23 WMT8508 CDT → FCO Jul 23, 09:10 UTCJul 23, 10:35 UTC1h 25m
2026-07-23 WMT226 - Jul 23, 06:50 UTCJul 23, 08:00 UTC1h 10m
2026-07-23 WMT4ER - Jul 23, 04:10 UTCJul 23, 05:35 UTC1h 25m
2026-07-22 WMT2Q - Jul 22, 18:40 UTCJul 22, 20:15 UTC1h 35m
2026-07-22 WMT8XY - Jul 22, 15:55 UTCJul 22, 17:50 UTC1h 55m
2026-07-22 WMT2TY - Jul 22, 13:25 UTCJul 22, 14:50 UTC1h 25m
2026-07-22 WMT7JJ - Jul 22, 04:35 UTCJul 22, 12:05 UTC7h 30m
2026-07-21 WMT288 - Jul 21, 21:45 UTCJul 22, 00:05 UTC2h 20m
2026-07-21 WMT3RN CTA → PRG Jul 21, 18:35 UTCJul 21, 20:50 UTC2h 15m
2026-07-21 WMT283 GVA → OTP Jul 21, 15:45 UTCJul 21, 17:10 UTC1h 25m
2026-07-21 WMT5959 PMO → TRN Jul 21, 13:05 UTCJul 21, 14:25 UTC1h 20m
2026-07-21 WMT7603 - Jul 21, 07:30 UTCJul 21, 08:55 UTC1h 25m
2026-07-21 WMT956 - Jul 21, 04:30 UTCJul 21, 06:05 UTC1h 35m
2026-07-20 WMT2610 - Jul 20, 21:35 UTCJul 20, 22:25 UTC50m
2026-07-20 WMT7389 - Jul 20, 19:45 UTCJul 20, 20:20 UTC35m
2026-07-20 WMT376 - Jul 20, 17:00 UTCJul 20, 18:20 UTC1h 20m
2026-07-20 WMT936 SZG → OTP Jul 20, 14:30 UTCJul 20, 16:05 UTC1h 35m
2026-07-20 WMT6US - Jul 20, 11:25 UTCJul 20, 12:40 UTC1h 15m
2026-07-20 WMT8508 CDT → FCO Jul 20, 09:05 UTCJul 20, 10:25 UTC1h 20m
2026-07-20 WMT226 - Jul 20, 06:55 UTCJul 20, 08:00 UTC1h 5m
2026-07-20 WMT4ER - Jul 20, 04:15 UTCJul 20, 05:30 UTC1h 15m
2026-07-19 WMT2610 - Jul 19, 22:00 UTCJul 19, 22:50 UTC50m
2026-07-19 WMT7389 - Jul 19, 19:40 UTCJul 19, 20:25 UTC45m
2026-07-19 WMT376 - Jul 19, 17:00 UTCJul 19, 18:20 UTC1h 20m
2026-07-19 WMT936 SZG → OTP Jul 19, 14:30 UTCJul 19, 16:05 UTC1h 35m
2026-07-19 WMT283 GVA → OTP Jul 19, 11:55 UTCJul 19, 13:20 UTC1h 25m
2026-07-19 WMT5959 - Jul 19, 09:50 UTCJul 19, 11:10 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-WML page for operator, model, and routing details .

Mode-S 4D20C0 frequently asked

What is Mode-S code 4D20C0?
4D20C0 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-WML.
Where is Mode-S 4D20C0 registered?
Mode-S code 4D20C0 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D20C0 broadcasting right now?
Yes. Mode-S 4D20C0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D20C0, octal 23220300, decimal 5,054,656.
What flights does 4D20C0 operate?
Mode-S 4D20C0 has broadcast 20 distinct callsigns, including WMT956, WMT7603, WMT5959, WMT283, WMT936.