sensors Mode-S transponder

471D5C

ICAO 24-bit transponder address · allocated to Hungary

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

Hex
471D5C
Octal
21616534
Decimal
4,660,572
Country
HU
Tail
HA-LDC
Type
A21N
Broadcasting now · callsign WMT3CB · 4,675 ft
Flights observed
13
Distinct callsigns
9
Country
HU
Last broadcast
17h ago

Current position

471D5C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 471D5C 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 9 distinct

Callsign Airline Flights Last seen
WMT8CK - 3 2026-04-13
WMT7286 - 2 2026-04-14
WMT4763 - 2 2026-04-13
WMT8B - 1 2026-04-12
WMT6WW - 1 2026-04-13
WMT6767 - 1 2026-04-13
WMT676 - 1 2026-04-14
WMT3CB - 1 2026-04-13
WMT314 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 WMT7286 - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 WMT7286 - Apr 14, 08:30 UTCApr 14, 09:05 UTC35m
2026-04-14 WMT676 - Apr 14, 05:20 UTCApr 14, 06:50 UTC1h 30m
2026-04-13 WMT6767 - Apr 13, 19:55 UTCApr 13, 20:10 UTC15m
2026-04-13 WMT6WW - Apr 13, 17:00 UTCApr 13, 18:45 UTC1h 45m
2026-04-13 WMT314 ATH → VCE Apr 13, 13:15 UTCApr 13, 15:10 UTC1h 55m
2026-04-13 WMT4763 - Apr 13, 11:55 UTCApr 13, 12:20 UTC25m
2026-04-13 WMT4763 - Apr 13, 10:25 UTCApr 13, 12:15 UTC1h 50m
2026-04-13 WMT8CK - Apr 13, 08:20 UTCApr 13, 09:00 UTC40m
2026-04-13 WMT8CK - Apr 13, 07:55 UTCApr 13, 09:00 UTC1h 5m
2026-04-13 WMT8CK - Apr 13, 07:10 UTCApr 13, 08:15 UTC1h 5m
2026-04-13 WMT3CB - Apr 13, 04:20 UTCApr 13, 05:55 UTC1h 35m
2026-04-12 WMT8B - Apr 12, 19:35 UTCApr 12, 20:05 UTC30m

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

Mode-S 471D5C frequently asked

What is Mode-S code 471D5C?
471D5C is an ICAO 24-bit transponder address. Allocated to Hungary. Assigned to HA-LDC.
Where is Mode-S 471D5C registered?
Mode-S code 471D5C is allocated to Hungary (HU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 471D5C broadcasting right now?
Yes. Mode-S 471D5C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 471D5C, octal 21616534, decimal 4,660,572.
What flights does 471D5C operate?
Mode-S 471D5C has broadcast 9 distinct callsigns, including WMT8CK, WMT7286, WMT4763, WMT8B, WMT6WW.