Apparatus

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sensors Mode-S transponder

71C059

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

Currently assigned to HL8059 · AIRBUS A-321

Hex
71C059
Octal
34340131
Decimal
7,454,809
Country
KR
Tail
HL8059
Type
A321
No current signal · last broadcast 1h ago
Flights observed
266
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 71C059.

Country allocation

The ICAO 24-bit address 71C059 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
AAR340 - 9 2026-07-12
AAR339 - 9 2026-07-12
AAR352 - 8 2026-07-11
AAR351 - 8 2026-07-11
AAR304 - 8 2026-07-01
AAR303 - 8 2026-07-01
AAR350 - 6 2026-07-08
AAR349 - 6 2026-07-08
AAR152 - 6 2026-06-27
AAR151 - 6 2026-06-27
AAR328 - 5 2026-06-20
AAR327 - 5 2026-06-20
AAR113 - 5 2026-07-03
AAR8995 Asiana Airlines 4 2026-04-16
AAR8986 Asiana Airlines 4 2026-04-16
AAR8985 Asiana Airlines 4 2026-05-05
AAR8981 Asiana Airlines 4 2026-04-16
AAR3365 - 4 2026-06-28
AAR332 - 4 2026-07-03
AAR331 - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAR331 - Jul 13, 23:40 UTCJul 14, 00:00 UTC20m
2026-07-13 AAR123 - Jul 13, 10:20 UTCJul 13, 11:50 UTC1h 30m
2026-07-13 AAR124 - Jul 13, 07:25 UTCJul 13, 08:45 UTC1h 20m
2026-07-12 AAR340 - Jul 12, 08:30 UTCJul 12, 08:50 UTC20m
2026-07-12 AAR339 - Jul 12, 03:40 UTCJul 12, 04:05 UTC25m
2026-07-11 AAR354 - Jul 11, 21:15 UTCJul 11, 21:35 UTC20m
2026-07-11 AAR353 - Jul 11, 13:30 UTCJul 11, 13:50 UTC20m
2026-07-11 AAR352 - Jul 11, 11:25 UTCJul 11, 11:45 UTC20m
2026-07-11 AAR351 - Jul 11, 06:45 UTCJul 11, 07:05 UTC20m
2026-07-11 AAR337 ICN → ICN Jul 11, 00:55 UTCJul 11, 05:05 UTC4h 10m
2026-07-10 AAR340 - Jul 10, 08:40 UTCJul 10, 09:05 UTC25m
2026-07-10 AAR339 - Jul 10, 03:40 UTCJul 10, 04:05 UTC25m
2026-07-09 AAR352 - Jul 9, 12:10 UTCJul 9, 12:35 UTC25m
2026-07-09 AAR351 - Jul 9, 06:45 UTCJul 9, 07:10 UTC25m
2026-07-09 AAR115 - Jul 9, 00:55 UTCJul 9, 02:25 UTC1h 30m
2026-07-08 AAR116 ICN → KIX Jul 8, 11:10 UTCJul 8, 12:35 UTC1h 25m
2026-07-08 AAR350 - Jul 8, 09:00 UTCJul 8, 09:35 UTC35m
2026-07-08 AAR349 - Jul 8, 03:55 UTCJul 8, 04:40 UTC45m
2026-07-07 AAR117 - Jul 7, 15:30 UTCJul 7, 16:50 UTC1h 20m
2026-07-07 AAR118 - Jul 7, 11:55 UTCJul 7, 13:30 UTC1h 35m
2026-07-07 AAR350 - Jul 7, 08:45 UTCJul 7, 09:20 UTC35m
2026-07-07 AAR349 - Jul 7, 04:20 UTCJul 7, 05:00 UTC40m
2026-07-06 AAR133 - Jul 6, 07:45 UTCJul 6, 08:50 UTC1h 5m
2026-07-06 AAR134 - Jul 6, 05:05 UTCJul 6, 05:50 UTC45m
2026-07-06 AAR115 KIX → ICN Jul 6, 01:05 UTCJul 6, 02:30 UTC1h 25m
2026-07-05 AAR116 ICN → KIX Jul 5, 10:45 UTCJul 5, 12:20 UTC1h 35m
2026-07-05 AAR340 - Jul 5, 08:45 UTCJul 5, 09:05 UTC20m
2026-07-05 AAR339 - Jul 5, 03:55 UTCJul 5, 04:20 UTC25m
2026-07-04 AAR380 - Jul 4, 10:45 UTCJul 4, 11:20 UTC35m
2026-07-04 AAR379 - Jul 4, 06:15 UTCJul 4, 06:40 UTC25m
2026-07-03 AAR113 KIX → ICN Jul 3, 11:10 UTCJul 3, 12:30 UTC1h 20m
2026-07-03 AAR114 - Jul 3, 08:20 UTCJul 3, 09:40 UTC1h 20m
2026-07-03 AAR332 - Jul 3, 04:05 UTCJul 3, 04:35 UTC30m
2026-07-02 AAR331 - Jul 2, 23:45 UTCJul 3, 00:05 UTC20m
2026-07-02 AAR367 ICN → ICN Jul 2, 11:25 UTCJul 2, 19:05 UTC7h 40m
2026-07-02 AAR133 - Jul 2, 07:55 UTCJul 2, 09:00 UTC1h 5m
2026-07-02 AAR134 - Jul 2, 05:15 UTCJul 2, 06:15 UTC1h 0m
2026-07-01 AAR354 - Jul 1, 21:10 UTCJul 1, 21:35 UTC25m
2026-07-01 AAR353 - Jul 1, 13:20 UTCJul 1, 20:15 UTC6h 55m
2026-07-01 AAR123 - Jul 1, 10:15 UTCJul 1, 11:40 UTC1h 25m
2026-07-01 AAR124 - Jul 1, 07:35 UTCJul 1, 08:50 UTC1h 15m
2026-07-01 AAR304 - Jul 1, 05:00 UTCJul 1, 05:25 UTC25m
2026-07-01 AAR303 - Jul 1, 00:25 UTCJul 1, 00:45 UTC20m
2026-06-30 AAR111 - Jun 30, 01:45 UTCJun 30, 03:05 UTC1h 20m
2026-06-29 AAR112 ICN → KIX Jun 29, 22:15 UTCJun 29, 23:34 UTC1h 20m
2026-06-29 AAR365 ICN → ICN Jun 29, 05:20 UTCJun 29, 10:15 UTC4h 55m
2026-06-29 AAR802A GMP → ICN Jun 29, 01:10 UTCJun 29, 01:34 UTC25m
2026-06-28 AAR3365 - Jun 28, 10:55 UTCJun 28, 11:19 UTC25m
2026-06-28 AAR3355 - Jun 28, 06:24 UTCJun 28, 06:44 UTC20m
2026-06-28 AAR1135 - Jun 28, 02:29 UTCJun 28, 03:50 UTC1h 20m

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 HL8059 page for operator, model, and routing details .

Mode-S 71C059 frequently asked

What is Mode-S code 71C059?
71C059 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8059.
Where is Mode-S 71C059 registered?
Mode-S code 71C059 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 71C059 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C059, octal 34340131, decimal 7,454,809.
What flights does 71C059 operate?
Mode-S 71C059 has broadcast 20 distinct callsigns, including AAR340, AAR339, AAR352, AAR351, AAR304.