Apparatus

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sensors Mode-S transponder

71C364

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

Currently assigned to HL8364 · AIRBUS A-321neo

Hex
71C364
Octal
34341544
Decimal
7,455,588
Country
KR
Tail
HL8364
Type
A21N
No current signal · last broadcast 7h ago
Flights observed
214
Distinct callsigns
20
Country
KR
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 71C364.

Country allocation

The ICAO 24-bit address 71C364 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
AAR106 Asiana Airlines 9 2026-04-28
AAR708 Asiana Airlines 8 2026-05-14
AAR105 Asiana Airlines 8 2026-04-28
AAR104 Asiana Airlines 8 2026-05-27
AAR103 Asiana Airlines 8 2026-05-27
AAR721 Asiana Airlines 7 2026-05-23
AAR707 Asiana Airlines 7 2026-05-14
AAR567 Asiana Airlines 7 2026-05-27
AAR151 Asiana Airlines 7 2026-05-22
AAR739 Asiana Airlines 6 2026-05-24
AAR347 Asiana Airlines 6 2026-05-28
AAR172 Asiana Airlines 6 2026-05-17
AAR171 Asiana Airlines 6 2026-05-17
AAR152 Asiana Airlines 6 2026-05-22
AAR722 Asiana Airlines 5 2026-05-23
AAR354 Asiana Airlines 5 2026-05-16
AAR353 Asiana Airlines 5 2026-05-16
AAR334 Asiana Airlines 5 2026-05-30
AAR327 Asiana Airlines 5 2026-05-17
AAR173 Asiana Airlines 5 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AAR116 ICN → KIX May 30, 11:00 UTCMay 30, 12:25 UTC1h 25m
2026-05-30 AAR334 PEK → ICN May 30, 08:55 UTCMay 30, 09:20 UTC25m
2026-05-30 AAR333 ICN → PEK May 30, 04:10 UTCMay 30, 04:35 UTC25m
2026-05-29 AAR350 NKG → ICN May 29, 09:15 UTCMay 29, 09:35 UTC20m
2026-05-29 AAR349 ICN → NKG May 29, 05:00 UTCMay 29, 05:20 UTC20m
2026-05-29 AAR368 PVG → ICN May 29, 02:20 UTCMay 29, 02:45 UTC25m
2026-05-28 AAR367 ICN → PVG May 28, 11:30 UTCMay 28, 11:55 UTC25m
2026-05-28 AAR348 XIY → ICN May 28, 07:40 UTCMay 28, 08:00 UTC20m
2026-05-28 AAR347 ICN → XIY May 28, 02:55 UTCMay 28, 06:55 UTC4h 0m
2026-05-28 AAR347 ICN → XIY May 28, 01:30 UTCMay 28, 01:45 UTC15m
2026-05-27 AAR568 UBN → ICN May 27, 19:15 UTCMay 27, 19:40 UTC25m
2026-05-27 AAR567 ICN → UBN May 27, 13:15 UTCMay 27, 13:35 UTC20m
2026-05-27 AAR567 ICN → UBN May 27, 11:55 UTCMay 27, 12:15 UTC20m
2026-05-27 AAR567 ICN → UBN May 27, 11:35 UTCMay 27, 11:40 UTC5m
2026-05-27 AAR103 NRT → ICN May 27, 07:45 UTCMay 27, 09:40 UTC1h 55m
2026-05-27 AAR104 ICN → NRT May 27, 03:39 UTCMay 27, 05:29 UTC1h 50m
2026-05-27 AAR131 FUK → ICN May 27, 00:59 UTCMay 27, 02:09 UTC1h 10m
2026-05-26 AAR132 ICN → FUK May 26, 21:44 UTCMay 26, 22:15 UTC30m
2026-05-26 AAR117 KIX → ICN May 26, 15:35 UTCMay 26, 16:59 UTC1h 25m
2026-05-26 AAR118 ICN → KIX May 26, 12:05 UTCMay 26, 13:29 UTC1h 25m
2026-05-26 AAR103 NRT → ICN May 26, 07:55 UTCMay 26, 09:49 UTC1h 55m
2026-05-26 AAR104 ICN → NRT May 26, 03:40 UTCMay 26, 05:30 UTC1h 50m
2026-05-25 AAR568 UBN → ICN May 25, 18:50 UTCMay 25, 19:15 UTC25m
2026-05-25 AAR567 ICN → UBN May 25, 13:10 UTCMay 25, 13:35 UTC25m
2026-05-25 AAR567 ICN → UBN May 25, 12:00 UTCMay 25, 12:10 UTC10m
2026-05-25 AAR173 CTS → ICN May 25, 05:40 UTCMay 25, 08:05 UTC2h 25m
2026-05-25 AAR174 ICN → CTS May 25, 01:55 UTCMay 25, 04:10 UTC2h 15m
2026-05-24 AAR740 PNH → ICN May 24, 21:25 UTCMay 24, 21:50 UTC25m
2026-05-24 AAR739 ICN → PNH May 24, 10:05 UTCMay 24, 20:15 UTC10h 10m
2026-05-24 AAR348 XIY → ICN May 24, 07:35 UTCMay 24, 07:55 UTC20m
2026-05-24 AAR347 ICN → XIY May 24, 01:15 UTCMay 24, 01:40 UTC25m
2026-05-23 AAR378 - May 23, 13:35 UTCMay 23, 14:00 UTC25m
2026-05-23 AAR377 - May 23, 10:50 UTCMay 23, 11:10 UTC20m
2026-05-23 AAR722 HKG → ICN May 23, 08:40 UTCMay 23, 09:10 UTC30m
2026-05-23 AAR722 HKG → ICN May 23, 05:55 UTCMay 23, 07:25 UTC1h 30m
2026-05-23 AAR721 ICN → HKG May 23, 04:00 UTCMay 23, 04:10 UTC10m
2026-05-23 AAR721 ICN → HKG May 23, 01:00 UTCMay 23, 03:20 UTC2h 19m
2026-05-22 AAR3523 YNJ → ICN May 22, 12:30 UTCMay 22, 12:50 UTC20m
2026-05-22 AAR3513 ICN → YNJ May 22, 07:50 UTCMay 22, 08:05 UTC15m
2026-05-22 AAR151 SDJ → ICN May 22, 04:05 UTCMay 22, 06:00 UTC1h 55m
2026-05-22 AAR152 ICN → SDJ May 22, 00:50 UTCMay 22, 02:25 UTC1h 35m
2026-05-21 AAR324 TFU → ICN May 21, 19:25 UTCMay 21, 19:50 UTC25m
2026-05-21 AAR323 ICN → TFU May 21, 11:35 UTCMay 21, 18:35 UTC7h 0m
2026-05-21 AAR372 SZX → ICN May 21, 09:25 UTCMay 21, 10:05 UTC40m
2026-05-21 AAR372 SZX → ICN May 21, 07:05 UTCMay 21, 07:15 UTC10m
2026-05-21 AAR371 ICN → SZX May 21, 01:35 UTCMay 21, 02:00 UTC25m
2026-05-20 AAR350 NKG → ICN May 20, 08:25 UTCMay 20, 08:50 UTC25m
2026-05-20 AAR349 ICN → NKG May 20, 03:55 UTCMay 20, 04:25 UTC30m
2026-05-19 AAR368 PVG → ICN May 19, 11:35 UTCMay 20, 02:20 UTC14h 45m
2026-05-19 AAR334 PEK → ICN May 19, 08:55 UTCMay 19, 09:20 UTC25m

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 HL8364 page for operator, model, and routing details .

Mode-S 71C364 frequently asked

What is Mode-S code 71C364?
71C364 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8364.
Where is Mode-S 71C364 registered?
Mode-S code 71C364 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 71C364 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C364, octal 34341544, decimal 7,455,588.
What flights does 71C364 operate?
Mode-S 71C364 has broadcast 20 distinct callsigns, including AAR106, AAR708, AAR105, AAR104, AAR103.