sensors Mode-S transponder

471DB9

ICAO 24-bit transponder address · allocated to Hungary

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

Hex
471DB9
Octal
21616671
Decimal
4,660,665
Country
HU
Tail
HA-LGR
Type
A21N
No current signal · last broadcast 13h ago
Flights observed
15
Distinct callsigns
8
Country
HU
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 471DB9.

Country allocation

The ICAO 24-bit address 471DB9 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 8 distinct

Callsign Airline Flights Last seen
WZZ3DK - 4 2026-04-13
WZZ4450 - 3 2026-04-13
WZZ9369 - 2 2026-04-14
WZZ4NM - 2 2026-04-13
WZZ8113 - 1 2026-04-14
WZZ5LT - 1 2026-04-13
WZZ2QN - 1 2026-04-13
WZZ1802 - 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 WZZ9369 - Apr 14, 09:10 UTCApr 14, 09:30 UTC20m
2026-04-14 WZZ9369 - Apr 14, 07:40 UTCApr 14, 09:05 UTC1h 25m
2026-04-14 WZZ8113 - Apr 14, 05:15 UTCApr 14, 06:20 UTC1h 5m
2026-04-13 WZZ1802 - Apr 13, 20:10 UTCApr 13, 22:10 UTC2h 0m
2026-04-13 WZZ2QN - Apr 13, 17:15 UTCApr 13, 19:15 UTC2h 0m
2026-04-13 WZZ5LT - Apr 13, 13:45 UTCApr 13, 15:45 UTC2h 0m
2026-04-13 WZZ4450 - Apr 13, 12:20 UTCApr 13, 12:40 UTC20m
2026-04-13 WZZ4450 - Apr 13, 11:55 UTCApr 13, 12:40 UTC45m
2026-04-13 WZZ4450 - Apr 13, 10:40 UTCApr 13, 12:15 UTC1h 35m
2026-04-13 WZZ3DK - Apr 13, 08:20 UTCApr 13, 09:10 UTC50m
2026-04-13 WZZ3DK - Apr 13, 07:55 UTCApr 13, 09:10 UTC1h 15m
2026-04-13 WZZ3DK - Apr 13, 07:25 UTCApr 13, 08:15 UTC50m
2026-04-13 WZZ4NM - Apr 13, 04:20 UTCApr 13, 06:00 UTC1h 40m
2026-04-12 WZZ3DK - Apr 12, 18:45 UTCApr 12, 20:15 UTC1h 30m
2026-04-12 WZZ4NM - Apr 12, 17:15 UTCApr 12, 17:55 UTC40m

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

Mode-S 471DB9 frequently asked

What is Mode-S code 471DB9?
471DB9 is an ICAO 24-bit transponder address. Allocated to Hungary. Assigned to HA-LGR.
Where is Mode-S 471DB9 registered?
Mode-S code 471DB9 is allocated to Hungary (HU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 471DB9 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 471DB9, octal 21616671, decimal 4,660,665.
What flights does 471DB9 operate?
Mode-S 471DB9 has broadcast 8 distinct callsigns, including WZZ3DK, WZZ4450, WZZ9369, WZZ4NM, WZZ8113.