Apparatus

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sensors Mode-S transponder

4D216A

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-RMD · CESSNA 560XL Citation XLS

Hex
4D216A
Octal
23220552
Decimal
5,054,826
Country
MT
Tail
9H-RMD
Type
C56X
Broadcasting now · callsign WMT5PL · 31,750 ft
Flights observed
389
Distinct callsigns
20
Country
MT
Last broadcast
16d ago

Current position

4D216A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D216A 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
WMT7237 - 17 2026-07-21
WMT579 Wizz Air Malta 17 2026-07-26
WMT4407 - 17 2026-07-21
WMT9984 - 15 2026-07-26
WMT743 - 15 2026-07-26
WMT3C - 15 2026-07-26
WMT3066 - 15 2026-07-25
WMT1280 - 15 2026-07-25
WMT9721 - 14 2026-07-26
WMT1KS - 14 2026-07-26
WMT3MA Wizz Air Malta 12 2026-07-25
WMT8064 - 11 2026-07-22
WMT796 - 11 2026-07-22
WMT454 - 11 2026-07-25
WMT5EF - 10 2026-07-21
WMT1SU - 10 2026-07-21
WMT958 - 9 2026-07-23
WMT7SR - 9 2026-07-24
WMT7359 - 9 2026-07-23
WMT5PL - 9 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WMT3C - Jul 26, 19:40 UTCJul 26, 22:30 UTC2h 50m
2026-07-26 WMT579 VCE → SSH Jul 26, 14:35 UTCJul 26, 17:55 UTC3h 20m
2026-07-26 WMT9721 BCN → MXP Jul 26, 11:40 UTCJul 26, 13:05 UTC1h 25m
2026-07-26 WMT1KS MXP → BCN Jul 26, 09:00 UTCJul 26, 10:15 UTC1h 15m
2026-07-26 WMT9984 BUD → MXP Jul 26, 06:30 UTCJul 26, 07:50 UTC1h 21m
2026-07-26 WMT743 MXP → BUD Jul 26, 04:25 UTCJul 26, 05:35 UTC1h 10m
2026-07-25 WMT3MA CTA → MXP Jul 25, 21:05 UTCJul 25, 22:40 UTC1h 35m
2026-07-25 WMT454 - Jul 25, 18:40 UTCJul 25, 20:00 UTC1h 20m
2026-07-25 WMT1UV - Jul 25, 15:40 UTCJul 25, 17:35 UTC1h 55m
2026-07-25 WMT5GC MXP → SCV Jul 25, 12:15 UTCJul 25, 13:55 UTC1h 40m
2026-07-25 WMT3066 - Jul 25, 08:00 UTCJul 25, 09:45 UTC1h 45m
2026-07-25 WMT1280 MXP → WAW Jul 25, 05:05 UTCJul 25, 06:45 UTC1h 40m
2026-07-24 WMT5PL BUD → MXP Jul 24, 20:10 UTCJul 24, 21:25 UTC1h 15m
2026-07-24 WMT7SR MXP → BUD Jul 24, 18:10 UTCJul 24, 19:25 UTC1h 15m
2026-07-24 WMT1EJ VLC → MXP Jul 24, 15:35 UTCJul 24, 17:05 UTC1h 30m
2026-07-24 WMT7PC MXP → VLC Jul 24, 12:45 UTCJul 24, 14:25 UTC1h 40m
2026-07-24 WMT2HX OTP → BRI Jul 24, 03:40 UTCJul 24, 10:35 UTC6h 55m
2026-07-23 WMT7359 - Jul 23, 21:25 UTCJul 23, 23:10 UTC1h 45m
2026-07-23 WMT958 MXP → MAD Jul 23, 17:45 UTCJul 23, 19:40 UTC1h 55m
2026-07-23 WMT9SK - Jul 23, 12:30 UTCJul 23, 15:55 UTC3h 25m
2026-07-23 WMT7SY MXP → KEF Jul 23, 07:15 UTCJul 23, 11:20 UTC4h 5m
2026-07-22 WMT164 LTN → MXP Jul 22, 20:45 UTCJul 22, 22:10 UTC1h 25m
2026-07-22 WMT1MS MXP → LTN Jul 22, 17:55 UTCJul 22, 19:35 UTC1h 40m
2026-07-22 WMT8064 LTN → MXP Jul 22, 15:10 UTCJul 22, 16:40 UTC1h 30m
2026-07-22 WMT796 MXP → LTN Jul 22, 12:05 UTCJul 22, 14:00 UTC1h 55m
2026-07-22 WMT1280 - Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-21 WMT3MA - Jul 21, 21:40 UTCJul 21, 23:20 UTC1h 40m
2026-07-21 WMT454 - Jul 21, 18:50 UTCJul 21, 20:15 UTC1h 25m
2026-07-21 WMT1SU - Jul 21, 15:45 UTCJul 21, 17:40 UTC1h 55m
2026-07-21 WMT5EF - Jul 21, 11:55 UTCJul 21, 14:10 UTC2h 15m
2026-07-21 WMT7237 - Jul 21, 08:15 UTCJul 21, 09:40 UTC1h 25m
2026-07-21 WMT4407 - Jul 21, 04:55 UTCJul 21, 06:50 UTC1h 55m
2026-07-20 WMT3C - Jul 20, 19:25 UTCJul 20, 23:20 UTC3h 55m
2026-07-20 WMT579 VCE → SSH Jul 20, 14:20 UTCJul 20, 17:45 UTC3h 25m
2026-07-20 WMT9721 BCN → MXP Jul 20, 11:55 UTCJul 20, 13:00 UTC1h 5m
2026-07-20 WMT1KS MXP → BCN Jul 20, 09:05 UTCJul 20, 10:30 UTC1h 25m
2026-07-20 WMT9984 BUD → MXP Jul 20, 06:30 UTCJul 20, 08:00 UTC1h 30m
2026-07-20 WMT743 MXP → BUD Jul 20, 04:25 UTCJul 20, 05:35 UTC1h 10m
2026-07-19 WMT9SK KEF → MXP Jul 19, 20:15 UTCJul 19, 23:45 UTC3h 30m
2026-07-19 WMT7SY MXP → KEF Jul 19, 14:50 UTCJul 19, 19:00 UTC4h 10m
2026-07-19 WMT3066 - Jul 19, 08:05 UTCJul 19, 10:00 UTC1h 55m
2026-07-19 WMT1280 MXP → WAW Jul 19, 05:00 UTCJul 19, 06:35 UTC1h 35m
2026-07-18 WMT952 BGY → SCV Jul 18, 20:45 UTCJul 19, 00:40 UTC3h 55m
2026-07-18 WMT9YD - Jul 18, 15:40 UTCJul 18, 19:10 UTC3h 30m
2026-07-18 WMT9721 BCN → MXP Jul 18, 11:50 UTCJul 18, 12:50 UTC1h 0m
2026-07-18 WMT1KS MXP → BCN Jul 18, 09:05 UTCJul 18, 10:30 UTC1h 25m
2026-07-18 WMT9984 BUD → MXP Jul 18, 06:40 UTCJul 18, 08:10 UTC1h 30m
2026-07-18 WMT743 MXP → BUD Jul 18, 04:35 UTCJul 18, 05:50 UTC1h 15m
2026-07-17 WMT164 - Jul 17, 21:50 UTCJul 17, 23:30 UTC1h 40m
2026-07-17 WMT1MS MXP → LTN Jul 17, 18:44 UTCJul 17, 20:20 UTC1h 35m

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

Mode-S 4D216A frequently asked

What is Mode-S code 4D216A?
4D216A is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-RMD.
Where is Mode-S 4D216A registered?
Mode-S code 4D216A is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D216A broadcasting right now?
Yes. Mode-S 4D216A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D216A, octal 23220552, decimal 5,054,826.
What flights does 4D216A operate?
Mode-S 4D216A has broadcast 20 distinct callsigns, including WMT7237, WMT579, WMT4407, WMT9984, WMT743.