Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C586

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

Currently assigned to HL8586 · AIRBUS A-321neo

Hex
71C586
Octal
34342606
Decimal
7,456,134
Country
KR
Tail
HL8586
Type
A21N
No current signal · last broadcast 15h ago
Flights observed
180
Distinct callsigns
20
Country
KR
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 71C586.

Country allocation

The ICAO 24-bit address 71C586 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
AAR173 Asiana Airlines 20 2026-05-22
AAR174 Asiana Airlines 16 2026-05-22
AAR739 Asiana Airlines 10 2026-05-12
AAR352 Asiana Airlines 7 2026-05-21
AAR354 Asiana Airlines 6 2026-05-20
AAR339 Asiana Airlines 6 2026-05-25
AAR116 Asiana Airlines 6 2026-05-26
AAR115 Asiana Airlines 6 2026-05-27
AAR353 Asiana Airlines 5 2026-05-20
AAR351 Asiana Airlines 5 2026-05-21
AAR371 Asiana Airlines 4 2026-05-16
AAR349 Asiana Airlines 4 2026-05-26
AAR347 Asiana Airlines 4 2026-05-15
AAR340 Asiana Airlines 4 2026-05-25
AAR324 Asiana Airlines 4 2026-05-27
AAR323 Asiana Airlines 4 2026-05-27
AAR172 Asiana Airlines 4 2026-05-05
AAR721 Asiana Airlines 3 2026-05-03
AAR372 Asiana Airlines 3 2026-05-16
AAR368 Asiana Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AAR103 NRT → ICN May 29, 07:55 UTCMay 29, 10:15 UTC2h 20m
2026-05-29 AAR104 ICN → NRT May 29, 03:35 UTCMay 29, 05:25 UTC1h 50m
2026-05-29 AAR131 FUK → ICN May 29, 01:10 UTCMay 29, 01:50 UTC40m
2026-05-28 AAR132 ICN → FUK May 28, 21:50 UTCMay 28, 22:20 UTC30m
2026-05-28 AAR105 NRT → ICN May 28, 11:00 UTCMay 28, 13:05 UTC2h 5m
2026-05-28 AAR106 ICN → NRT May 28, 07:05 UTCMay 28, 08:55 UTC1h 50m
2026-05-28 AAR304 CGQ → ICN May 28, 05:15 UTCMay 28, 05:35 UTC20m
2026-05-28 AAR303 ICN → CGQ May 28, 00:45 UTCMay 28, 01:10 UTC25m
2026-05-27 AAR324 TFU → ICN May 27, 19:05 UTCMay 27, 19:30 UTC25m
2026-05-27 AAR323 ICN → TFU May 27, 11:30 UTCMay 27, 11:45 UTC15m
2026-05-27 AAR323 ICN → TFU May 27, 11:20 UTCMay 27, 11:25 UTC5m
2026-05-27 AAR1153 UKB → ICN May 27, 07:55 UTCMay 27, 09:20 UTC1h 25m
2026-05-27 AAR1163 ICN → UKB May 27, 03:59 UTCMay 27, 05:14 UTC1h 15m
2026-05-27 AAR115 KIX → ICN May 27, 00:49 UTCMay 27, 02:19 UTC1h 30m
2026-05-26 AAR116 ICN → KIX May 26, 11:05 UTCMay 26, 12:24 UTC1h 20m
2026-05-26 AAR350 NKG → ICN May 26, 08:15 UTCMay 26, 08:45 UTC30m
2026-05-26 AAR349 ICN → NKG May 26, 03:55 UTCMay 26, 04:24 UTC30m
2026-05-25 AAR324 TFU → ICN May 25, 19:05 UTCMay 25, 19:30 UTC25m
2026-05-25 AAR323 ICN → TFU May 25, 11:20 UTCMay 25, 11:40 UTC20m
2026-05-25 AAR340 HRB → ICN May 25, 08:25 UTCMay 25, 08:50 UTC25m
2026-05-25 AAR339 ICN → HRB May 25, 03:35 UTCMay 25, 04:05 UTC30m
2026-05-25 AAR339 ICN → HRB May 25, 03:20 UTCMay 25, 03:25 UTC5m
2026-05-24 AAR103 NRT → ICN May 24, 07:55 UTCMay 24, 09:55 UTC2h 0m
2026-05-24 AAR104 ICN → NRT May 24, 03:45 UTCMay 24, 05:40 UTC1h 55m
2026-05-24 AAR131 FUK → ICN May 24, 00:45 UTCMay 24, 01:55 UTC1h 10m
2026-05-23 AAR132 ICN → FUK May 23, 21:50 UTCMay 23, 22:25 UTC35m
2026-05-23 AAR568 UBN → ICN May 23, 11:55 UTCMay 23, 19:25 UTC7h 30m
2026-05-23 AAR103 NRT → ICN May 23, 07:50 UTCMay 23, 09:50 UTC2h 0m
2026-05-23 AAR104 ICN → NRT May 23, 03:40 UTCMay 23, 05:35 UTC1h 55m
2026-05-23 - ICN → ICN May 23, 01:50 UTCMay 23, 01:55 UTC5m
2026-05-22 AAR740 PNH → ICN May 22, 10:10 UTCMay 22, 21:30 UTC11h 20m
2026-05-22 AAR173 CTS → ICN May 22, 07:40 UTCMay 22, 08:15 UTC35m
2026-05-22 AAR173 CTS → ICN May 22, 05:40 UTCMay 22, 07:10 UTC1h 30m
2026-05-22 AAR174 ICN → CTS May 22, 01:35 UTCMay 22, 04:00 UTC2h 25m
2026-05-21 AAR352 YNJ → ICN May 21, 12:00 UTCMay 21, 12:20 UTC20m
2026-05-21 AAR351 ICN → YNJ May 21, 06:45 UTCMay 21, 07:10 UTC25m
2026-05-21 AAR332 PEK → ICN May 21, 04:00 UTCMay 21, 04:20 UTC20m
2026-05-20 AAR331 ICN → PEK May 20, 23:55 UTCMay 21, 00:15 UTC20m
2026-05-20 AAR354 CKG → ICN May 20, 21:10 UTCMay 20, 21:35 UTC25m
2026-05-20 AAR353 ICN → CKG May 20, 13:25 UTCMay 20, 20:20 UTC6h 55m
2026-05-20 AAR115 KIX → ICN May 20, 00:50 UTCMay 20, 02:10 UTC1h 20m
2026-05-19 AAR116 ICN → KIX May 19, 11:00 UTCMay 19, 12:30 UTC1h 30m
2026-05-19 AAR349 ICN → NKG May 19, 04:20 UTCMay 19, 09:10 UTC4h 50m
2026-05-18 AAR368 PVG → ICN May 18, 11:35 UTCMay 19, 02:25 UTC14h 49m
2026-05-18 AAR173 CTS → ICN May 18, 05:45 UTCMay 18, 08:15 UTC2h 30m
2026-05-18 AAR174 ICN → CTS May 18, 01:35 UTCMay 18, 04:05 UTC2h 30m
2026-05-17 AAR354 CKG → ICN May 17, 13:10 UTCMay 17, 21:30 UTC8h 20m
2026-05-17 AAR336 PEK → ICN May 17, 10:25 UTCMay 17, 10:45 UTC20m
2026-05-17 AAR336 PEK → ICN May 17, 09:20 UTCMay 17, 09:35 UTC15m
2026-05-17 AAR335 ICN → PEK May 17, 06:05 UTCMay 17, 06:25 UTC20m

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 HL8586 page for operator, model, and routing details .

Mode-S 71C586 frequently asked

What is Mode-S code 71C586?
71C586 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8586.
Where is Mode-S 71C586 registered?
Mode-S code 71C586 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 71C586 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C586, octal 34342606, decimal 7,456,134.
What flights does 71C586 operate?
Mode-S 71C586 has broadcast 20 distinct callsigns, including AAR173, AAR174, AAR739, AAR352, AAR354.