sensors Mode-S transponder

71C002

ICAO 24-bit transponder address · allocated to Korea, South

Currently assigned to HL8002 · AIRBUS A-330-300

Hex
71C002
Octal
34340002
Decimal
7,454,722
Country
KR
Tail
HL8002
Type
A333
Broadcasting now · callsign KAL442 · 37,100 ft
Flights observed
7
Distinct callsigns
5
Country
KR
Last broadcast
23h ago

Current position

71C002 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C002 falls within the block assigned to Korea, South (KR) by ICAO Annex 10, Volume III. Every aircraft registered in Korea, South 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 5 distinct

Callsign Airline Flights Last seen
KAL460 Korean Air 2 2026-04-13
KAL459 - 2 2026-04-13
KAL868 - 1 2026-04-14
KAL2042 - 1 2026-04-13
KAL2041 Korean Air 1 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 KAL868 - Apr 14, 07:25 UTCApr 14, 07:55 UTC30m
2026-04-13 KAL460 DAD → ICN Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 KAL460 DAD → ICN Apr 13, 17:05 UTCApr 13, 19:55 UTC2h 50m
2026-04-13 KAL459 - Apr 13, 11:55 UTCApr 13, 12:25 UTC30m
2026-04-13 KAL459 - Apr 13, 09:45 UTCApr 13, 12:15 UTC2h 30m
2026-04-13 KAL2042 - Apr 13, 07:40 UTCApr 13, 07:50 UTC10m
2026-04-13 KAL2041 ICN → UBN Apr 13, 00:10 UTCApr 13, 00:25 UTC15m

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 HL8002 page for operator, model, and routing details .

Mode-S 71C002 frequently asked

What is Mode-S code 71C002?
71C002 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8002.
Where is Mode-S 71C002 registered?
Mode-S code 71C002 is allocated to Korea, South (KR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 71C002 broadcasting right now?
Yes. Mode-S 71C002 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C002, octal 34340002, decimal 7,454,722.
What flights does 71C002 operate?
Mode-S 71C002 has broadcast 5 distinct callsigns, including KAL460, KAL459, KAL868, KAL2042, KAL2041.