sensors Mode-S transponder

471D64

ICAO 24-bit transponder address · allocated to Hungary

Currently assigned to HA-LDK · AIRBUS A-321neo

Hex
471D64
Octal
21616544
Decimal
4,660,580
Country
HU
Tail
HA-LDK
Type
A21N
No current signal · last broadcast 13h ago
Flights observed
15
Distinct callsigns
10
Country
HU
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 471D64.

Country allocation

The ICAO 24-bit address 471D64 falls within the block assigned to Hungary (HU) by ICAO Annex 10, Volume III. Every aircraft registered in Hungary 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 10 distinct

Callsign Airline Flights Last seen
WMT707 - 3 2026-04-13
WMT9EQ - 2 2026-04-13
WMT223 Wizz Air Malta 2 2026-04-14
WMT2121 - 2 2026-04-13
WMT9SL - 1 2026-04-13
WMT9669 - 1 2026-04-14
WMT954 Wizz Air Malta 1 2026-04-14
WMT7KS - 1 2026-04-13
WMT734 - 1 2026-04-13
WMT3BF - 1 2026-04-12

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 WMT9669 - Apr 14, 10:30 UTCApr 14, 11:05 UTC35m
2026-04-14 WMT223 TFS → MXP Apr 14, 07:10 UTCApr 14, 09:00 UTC1h 50m
2026-04-14 WMT223 TFS → MXP Apr 14, 06:45 UTCApr 14, 07:10 UTC25m
2026-04-14 WMT954 LTN → LTN Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 WMT2121 - Apr 13, 19:50 UTCApr 13, 21:15 UTC1h 25m
2026-04-13 WMT2121 - Apr 13, 19:15 UTCApr 13, 20:05 UTC50m
2026-04-13 WMT9EQ - Apr 13, 16:15 UTCApr 13, 17:40 UTC1h 25m
2026-04-13 WMT9EQ - Apr 13, 16:00 UTCApr 13, 16:15 UTC15m
2026-04-13 WMT7KS - Apr 13, 12:45 UTCApr 13, 14:25 UTC1h 40m
2026-04-13 WMT734 - Apr 13, 09:55 UTCApr 13, 11:50 UTC1h 55m
2026-04-13 WMT9SL - Apr 13, 06:05 UTCApr 13, 07:55 UTC1h 50m
2026-04-13 WMT707 - Apr 13, 04:20 UTCApr 13, 04:55 UTC35m
2026-04-13 WMT707 - Apr 13, 03:55 UTCApr 13, 04:55 UTC1h 0m
2026-04-13 WMT707 - Apr 13, 02:40 UTCApr 13, 04:15 UTC1h 35m
2026-04-12 WMT3BF - Apr 12, 17:55 UTCApr 12, 19:55 UTC2h 0m

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 HA-LDK page for operator, model, and routing details .

Mode-S 471D64 frequently asked

What is Mode-S code 471D64?
471D64 is an ICAO 24-bit transponder address. Allocated to Hungary. Assigned to HA-LDK.
Where is Mode-S 471D64 registered?
Mode-S code 471D64 is allocated to Hungary (HU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 471D64 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 471D64, octal 21616544, decimal 4,660,580.
What flights does 471D64 operate?
Mode-S 471D64 has broadcast 10 distinct callsigns, including WMT707, WMT9EQ, WMT223, WMT2121, WMT9SL.