sensors Mode-S transponder

4D2168

ICAO 24-bit transponder address · allocated to Malta

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

Hex
4D2168
Octal
23220550
Decimal
5,054,824
Country
MT
Tail
9H-XLD
Type
A21N
Broadcasting now · callsign WMT2HX · 35,000 ft
Flights observed
13
Distinct callsigns
6
Country
MT
Last broadcast
16h ago

Current position

4D2168 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D2168 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 6 distinct

Callsign Airline Flights Last seen
WMT3C - 3 2026-04-13
WMT2HX - 3 2026-04-13
WMT579 - 2 2026-04-13
WMT515 - 2 2026-04-14
WMT431 Wizz Air Malta 2 2026-04-13
WMT6YM - 1 2026-04-14

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 WMT515 - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 WMT515 - Apr 14, 08:35 UTCApr 14, 09:05 UTC30m
2026-04-14 WMT6YM - Apr 14, 05:15 UTCApr 14, 07:10 UTC1h 55m
2026-04-13 WMT3C - Apr 13, 20:00 UTCApr 13, 23:40 UTC3h 40m
2026-04-13 WMT3C - Apr 13, 16:25 UTCApr 13, 20:10 UTC3h 45m
2026-04-13 WMT579 - Apr 13, 15:50 UTCApr 13, 16:50 UTC1h 0m
2026-04-13 WMT579 - Apr 13, 14:30 UTCApr 13, 16:10 UTC1h 40m
2026-04-13 WMT431 OTP → PSA Apr 13, 08:20 UTCApr 13, 10:15 UTC1h 55m
2026-04-13 WMT431 OTP → PSA Apr 13, 07:55 UTCApr 13, 10:15 UTC2h 20m
2026-04-13 WMT2HX - Apr 13, 04:20 UTCApr 13, 08:15 UTC3h 55m
2026-04-13 WMT2HX - Apr 13, 03:55 UTCApr 13, 07:50 UTC3h 55m
2026-04-13 WMT2HX - Apr 13, 03:20 UTCApr 13, 04:15 UTC55m
2026-04-12 WMT3C - Apr 12, 17:15 UTCApr 12, 19:55 UTC2h 40m

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

Mode-S 4D2168 frequently asked

What is Mode-S code 4D2168?
4D2168 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-XLD.
Where is Mode-S 4D2168 registered?
Mode-S code 4D2168 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2168 broadcasting right now?
Yes. Mode-S 4D2168 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2168, octal 23220550, decimal 5,054,824.
What flights does 4D2168 operate?
Mode-S 4D2168 has broadcast 6 distinct callsigns, including WMT3C, WMT2HX, WMT579, WMT515, WMT431.