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
Transponder active on ground
Flights observed
400
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

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 - 28 2026-07-07
AAR1055 - 27 2026-07-14
AAR8951 - 26 2026-07-14
AAR8963 - 25 2026-07-13
AAR8950 - 25 2026-07-14
AAR1165 - 25 2026-07-14
AAR8964 - 24 2026-07-13
AAR1065 - 24 2026-07-13
AAR1035 - 23 2026-07-12
AAR1045 - 22 2026-07-12
AAR1085 - 21 2026-07-11
AAR1075 - 21 2026-07-12
AAR3615 - 20 2026-07-12
AAR3625 Asiana Airlines 9 2026-05-28
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
2026-07-14 AAR1165 - Jul 14, 09:10 UTCJul 14, 10:15 UTC1h 5m
2026-07-14 AAR8950 - Jul 14, 06:45 UTCJul 14, 07:25 UTC40m
2026-07-14 AAR8951 - Jul 14, 04:30 UTCJul 14, 05:05 UTC35m
2026-07-14 AAR1055 HND → GMP Jul 14, 00:50 UTCJul 14, 02:40 UTC1h 50m
2026-07-13 AAR1065 GMP → HND Jul 13, 12:10 UTCJul 13, 13:55 UTC1h 45m
2026-07-13 AAR8964 - Jul 13, 09:50 UTCJul 13, 10:35 UTC45m
2026-07-13 AAR8963 - Jul 13, 07:20 UTCJul 13, 08:05 UTC45m
2026-07-12 AAR3615 GMP → GMP Jul 12, 23:45 UTCJul 13, 05:01 UTC5h 15m
2026-07-12 AAR1035 HND → GMP Jul 12, 11:30 UTCJul 12, 13:15 UTC1h 45m
2026-07-12 AAR1045 GMP → HND Jul 12, 06:55 UTCJul 12, 08:55 UTC2h 0m
2026-07-12 AAR1075 HND → GMP Jul 12, 03:30 UTCJul 12, 05:20 UTC1h 50m
2026-07-11 AAR1085 GMP → HND Jul 11, 23:55 UTCJul 12, 01:45 UTC1h 50m
2026-07-11 AAR1035 HND → GMP Jul 11, 11:40 UTCJul 11, 13:25 UTC1h 45m
2026-07-11 AAR1045 GMP → HND Jul 11, 06:55 UTCJul 11, 08:50 UTC1h 55m
2026-07-11 AAR1075 HND → GMP Jul 11, 03:35 UTCJul 11, 05:20 UTC1h 45m
2026-07-10 AAR1085 GMP → HND Jul 10, 23:55 UTCJul 11, 01:45 UTC1h 50m
2026-07-10 AAR1035 HND → GMP Jul 10, 11:30 UTCJul 10, 13:30 UTC2h 0m
2026-07-10 AAR1045 GMP → HND Jul 10, 07:00 UTCJul 10, 08:55 UTC1h 55m
2026-07-10 AAR1075 HND → GMP Jul 10, 03:25 UTCJul 10, 05:20 UTC1h 55m
2026-07-09 AAR1085 GMP → HND Jul 9, 23:55 UTCJul 10, 01:45 UTC1h 50m
2026-07-09 AAR1035 HND → GMP Jul 9, 11:25 UTCJul 9, 13:15 UTC1h 50m
2026-07-09 AAR1045 GMP → HND Jul 9, 07:05 UTCJul 9, 09:05 UTC2h 0m
2026-07-09 AAR1075 HND → GMP Jul 9, 03:20 UTCJul 9, 05:15 UTC1h 55m
2026-07-09 AAR1085 GMP → HND Jul 9, 00:05 UTCJul 9, 01:50 UTC1h 45m
2026-07-08 AAR1035 HND → GMP Jul 8, 11:25 UTCJul 8, 13:15 UTC1h 50m
2026-07-08 AAR1045 GMP → HND Jul 8, 07:00 UTCJul 8, 08:55 UTC1h 55m
2026-07-08 AAR1075 HND → GMP Jul 8, 03:30 UTCJul 8, 05:25 UTC1h 55m
2026-07-08 AAR1085 GMP → HND Jul 8, 00:10 UTCJul 8, 01:55 UTC1h 45m
2026-07-07 AAR1155 KIX → GMP Jul 7, 11:55 UTCJul 7, 13:15 UTC1h 20m
2026-07-07 AAR1165 - Jul 7, 09:10 UTCJul 7, 10:35 UTC1h 25m
2026-07-07 AAR8950 - Jul 7, 06:45 UTCJul 7, 07:20 UTC35m
2026-07-07 AAR8951 - Jul 7, 04:25 UTCJul 7, 05:00 UTC35m
2026-07-07 AAR1055 HND → GMP Jul 7, 00:35 UTCJul 7, 02:30 UTC1h 55m
2026-07-06 AAR1065 GMP → HND Jul 6, 11:10 UTCJul 6, 12:50 UTC1h 40m
2026-07-06 AAR8964 - Jul 6, 08:55 UTCJul 6, 09:35 UTC40m
2026-07-06 AAR8963 - Jul 6, 06:35 UTCJul 6, 07:10 UTC35m
2026-07-05 AAR3615 GMP → SHA Jul 5, 23:50 UTCJul 6, 05:00 UTC5h 10m
2026-07-05 AAR1155 KIX → GMP Jul 5, 12:30 UTCJul 5, 13:55 UTC1h 25m
2026-07-05 AAR1165 GMP → KIX Jul 5, 09:45 UTCJul 5, 11:05 UTC1h 20m
2026-07-05 AAR8950 - Jul 5, 07:25 UTCJul 5, 08:10 UTC45m
2026-07-05 AAR8951 - Jul 5, 04:35 UTCJul 5, 05:05 UTC30m
2026-07-05 AAR1055 HND → GMP Jul 5, 00:20 UTCJul 5, 02:15 UTC1h 55m
2026-07-04 AAR1065 GMP → HND Jul 4, 11:15 UTCJul 4, 13:05 UTC1h 50m
2026-07-04 AAR8964 - Jul 4, 08:55 UTCJul 4, 09:35 UTC40m
2026-07-04 AAR8963 - Jul 4, 06:35 UTCJul 4, 07:10 UTC35m
2026-07-03 AAR3615 GMP → SHA Jul 3, 23:45 UTCJul 4, 04:45 UTC5h 0m
2026-07-03 AAR1035 HND → GMP Jul 3, 11:25 UTCJul 3, 13:25 UTC2h 0m
2026-07-03 AAR1045 GMP → HND Jul 3, 07:05 UTCJul 3, 08:40 UTC1h 35m
2026-07-03 AAR1075 HND → GMP Jul 3, 03:25 UTCJul 3, 05:20 UTC1h 55m
2026-07-02 AAR1085 GMP → HND Jul 2, 23:50 UTCJul 3, 01:30 UTC1h 40m

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?
Mode-S 71C259 is currently broadcasting from the ground.
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, AAR8950.