Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C259

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

Currently assigned to HL8259 · AIRBUS A-330-300

Hex
71C259
Octal
34341131
Decimal
7,455,321
Country
KR
Tail
HL8259
Type
A333
No current signal · last broadcast Jul 26, 13:20 UTC
Flights observed
453
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 13:20 UTC

Last known position

Most recent position reported by Mode-S 71C259.

Country allocation

The ICAO 24-bit address 71C259 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 20 distinct

Callsign Airline Flights Last seen
AAR1155 Asiana Airlines 35 2026-07-26
AAR1055 Asiana Airlines 32 2026-07-26
AAR8951 Asiana Airlines 31 2026-07-26
AAR8963 Asiana Airlines 30 2026-07-25
AAR8964 Asiana Airlines 29 2026-07-25
AAR8950 Asiana Airlines 29 2026-07-26
AAR1165 Asiana Airlines 29 2026-07-26
AAR1065 Asiana Airlines 29 2026-07-25
AAR1035 - 25 2026-07-20
AAR3615 Asiana Airlines 24 2026-07-24
AAR1045 Asiana Airlines 24 2026-07-20
AAR1085 Asiana Airlines 23 2026-07-20
AAR1075 Asiana Airlines 23 2026-07-20
AAR3625 Asiana Airlines 10 2026-07-20
AAR108 - 6 2026-06-19
AAR107 - 6 2026-06-20
AAR574 - 4 2026-06-10
AAR711 - 3 2026-06-21
AAR702 - 3 2026-06-16
AAR701 - 3 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAR1155 KIX → GMP Jul 26, 12:00 UTCJul 26, 13:15 UTC1h 15m
2026-07-26 AAR1165 GMP → KIX Jul 26, 09:10 UTCJul 26, 10:30 UTC1h 20m
2026-07-26 AAR8950 CJU → GMP Jul 26, 06:40 UTCJul 26, 07:20 UTC40m
2026-07-26 AAR8951 GMP → CJU Jul 26, 04:10 UTCJul 26, 04:45 UTC35m
2026-07-26 AAR1055 HND → GMP Jul 26, 00:30 UTCJul 26, 02:15 UTC1h 45m
2026-07-25 AAR1065 GMP → HND Jul 25, 11:35 UTCJul 25, 13:20 UTC1h 45m
2026-07-25 AAR8964 CJU → GMP Jul 25, 09:20 UTCJul 25, 10:00 UTC40m
2026-07-25 AAR8963 GMP → CJU Jul 25, 07:00 UTCJul 25, 07:35 UTC35m
2026-07-24 AAR3615 GMP → SHA Jul 24, 23:45 UTCJul 25, 05:00 UTC5h 15m
2026-07-24 AAR1155 KIX → GMP Jul 24, 12:10 UTCJul 24, 13:30 UTC1h 20m
2026-07-24 AAR1165 GMP → KIX Jul 24, 09:15 UTCJul 24, 10:40 UTC1h 25m
2026-07-24 AAR8950 CJU → GMP Jul 24, 06:45 UTCJul 24, 07:30 UTC45m
2026-07-24 AAR8951 GMP → CJU Jul 24, 04:20 UTCJul 24, 04:55 UTC35m
2026-07-24 AAR1055 HND → GMP Jul 24, 00:20 UTCJul 24, 02:10 UTC1h 50m
2026-07-23 AAR1065 GMP → HND Jul 23, 12:25 UTCJul 23, 14:05 UTC1h 40m
2026-07-23 AAR8964 CJU → GMP Jul 23, 09:50 UTCJul 23, 10:35 UTC45m
2026-07-23 AAR8963 GMP → CJU Jul 23, 06:55 UTCJul 23, 07:45 UTC50m
2026-07-22 AAR3615 GMP → SHA Jul 22, 23:50 UTCJul 23, 05:05 UTC5h 15m
2026-07-22 AAR1155 KIX → GMP Jul 22, 12:25 UTCJul 22, 13:45 UTC1h 20m
2026-07-22 AAR1155 KIX → GMP Jul 22, 11:20 UTCJul 22, 11:30 UTC10m
2026-07-22 AAR8951 GMP → CJU Jul 22, 04:20 UTCJul 22, 05:00 UTC40m
2026-07-22 AAR1055 HND → GMP Jul 22, 00:20 UTCJul 22, 02:10 UTC1h 50m
2026-07-21 AAR1065 GMP → HND Jul 21, 11:30 UTCJul 21, 13:25 UTC1h 55m
2026-07-21 AAR8964 CJU → GMP Jul 21, 09:10 UTCJul 21, 09:55 UTC45m
2026-07-21 AAR8963 GMP → CJU Jul 21, 06:45 UTCJul 21, 07:20 UTC35m
2026-07-20 AAR3625 SHA → GMP Jul 20, 23:45 UTCJul 21, 05:05 UTC5h 20m
2026-07-20 AAR1035 HND → GMP Jul 20, 11:35 UTCJul 20, 13:25 UTC1h 50m
2026-07-20 AAR1045 GMP → HND Jul 20, 07:00 UTCJul 20, 09:05 UTC2h 5m
2026-07-20 AAR1075 HND → GMP Jul 20, 03:20 UTCJul 20, 05:10 UTC1h 50m
2026-07-20 AAR1085 GMP → HND Jul 20, 00:00 UTCJul 20, 01:45 UTC1h 45m
2026-07-19 AAR1155 KIX → GMP Jul 19, 12:20 UTCJul 19, 13:35 UTC1h 15m
2026-07-19 AAR1165 GMP → KIX Jul 19, 09:10 UTCJul 19, 10:45 UTC1h 35m
2026-07-19 AAR8950 - Jul 19, 06:35 UTCJul 19, 07:15 UTC40m
2026-07-19 AAR8951 GMP → CJU Jul 19, 04:25 UTCJul 19, 05:00 UTC35m
2026-07-19 AAR1055 HND → GMP Jul 19, 00:25 UTCJul 19, 02:20 UTC1h 55m
2026-07-18 AAR1065 GMP → HND Jul 18, 11:35 UTCJul 18, 13:25 UTC1h 50m
2026-07-18 AAR8964 - Jul 18, 09:30 UTCJul 18, 10:00 UTC30m
2026-07-18 AAR8963 - Jul 18, 07:15 UTCJul 18, 07:50 UTC35m
2026-07-17 AAR3615 GMP → GMP Jul 17, 23:50 UTCJul 18, 05:00 UTC5h 11m
2026-07-17 AAR1035 HND → GMP Jul 17, 11:30 UTCJul 17, 13:20 UTC1h 50m
2026-07-17 AAR1045 GMP → HND Jul 17, 07:00 UTCJul 17, 09:10 UTC2h 10m
2026-07-17 AAR1075 HND → GMP Jul 17, 03:34 UTCJul 17, 05:20 UTC1h 45m
2026-07-16 AAR1085 GMP → HND Jul 16, 23:55 UTCJul 17, 02:05 UTC2h 10m
2026-07-16 AAR1155 KIX → GMP Jul 16, 12:09 UTCJul 16, 13:25 UTC1h 15m
2026-07-16 AAR1165 GMP → KIX Jul 16, 09:10 UTCJul 16, 10:35 UTC1h 25m
2026-07-16 AAR8950 - Jul 16, 06:45 UTCJul 16, 07:20 UTC35m
2026-07-16 AAR8951 - Jul 16, 04:20 UTCJul 16, 05:00 UTC40m
2026-07-16 AAR1055 HND → GMP Jul 16, 00:25 UTCJul 16, 02:20 UTC1h 55m
2026-07-15 AAR1065 GMP → HND Jul 15, 11:40 UTCJul 15, 13:30 UTC1h 50m
2026-07-15 AAR8964 - Jul 15, 08:55 UTCJul 15, 09:30 UTC35m

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 HL8259 page for operator, model, and routing details .

Mode-S 71C259 frequently asked

What is Mode-S code 71C259?
71C259 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8259.
Where is Mode-S 71C259 registered?
Mode-S code 71C259 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 71C259 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C259, octal 34341131, decimal 7,455,321.
What flights does 71C259 operate?
Mode-S 71C259 has broadcast 20 distinct callsigns, including AAR1155, AAR1055, AAR8951, AAR8963, AAR8964.