Apparatus

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sensors Mode-S transponder

71C361

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

Currently assigned to HL8361 · AIRBUS A-350-900

Hex
71C361
Octal
34341541
Decimal
7,455,585
Country
KR
Tail
HL8361
Type
A359
No current signal · last broadcast 2h ago
Flights observed
111
Distinct callsigns
20
Country
KR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 71C361.

Country allocation

The ICAO 24-bit address 71C361 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
AAR762 Asiana Airlines 9 2026-05-20
AAR761 Asiana Airlines 7 2026-05-20
AAR522 Asiana Airlines 7 2026-05-19
AAR521 Asiana Airlines 7 2026-05-18
AAR222 Asiana Airlines 7 2026-06-01
AAR221 Asiana Airlines 7 2026-06-01
AAR752 Asiana Airlines 5 2026-06-04
AAR751 Asiana Airlines 5 2026-06-04
AAR734 Asiana Airlines 5 2026-05-31
AAR502 Asiana Airlines 5 2026-06-04
AAR501 Asiana Airlines 5 2026-06-03
AAR548 - 4 2026-05-18
AAR114 Asiana Airlines 4 2026-05-18
AAR113 Asiana Airlines 4 2026-05-18
AAR547 - 3 2026-05-17
AAR742 Asiana Airlines 2 2026-06-02
AAR741 Asiana Airlines 2 2026-06-02
AAR733 Asiana Airlines 2 2026-05-31
AAR546 Asiana Airlines 2 2026-05-01
AAR542 Asiana Airlines 2 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 AAR752 SIN → ICN Jun 4, 18:15 UTCJun 4, 19:25 UTC1h 10m
2026-06-04 AAR752 SIN → ICN Jun 4, 15:10 UTCJun 4, 15:20 UTC10m
2026-06-04 AAR751 ICN → SIN Jun 4, 07:45 UTCJun 4, 10:35 UTC2h 50m
2026-06-04 AAR502 CDG → ICN Jun 4, 04:45 UTCJun 4, 05:10 UTC25m
2026-06-03 AAR502 CDG → ICN Jun 3, 17:50 UTCJun 4, 03:55 UTC10h 5m
2026-06-03 AAR501 ICN → CDG Jun 3, 03:10 UTCJun 3, 15:35 UTC12h 25m
2026-06-03 AAR501 ICN → CDG Jun 3, 01:55 UTCJun 3, 02:10 UTC15m
2026-06-02 AAR742 BKK → ICN Jun 2, 18:35 UTCJun 2, 23:30 UTC4h 55m
2026-06-02 AAR741 ICN → BKK Jun 2, 11:10 UTCJun 2, 16:05 UTC4h 55m
2026-06-01 AAR221 JFK → ICN Jun 1, 16:45 UTCJun 2, 07:00 UTC14h 15m
2026-06-01 AAR222 ICN → JFK Jun 1, 00:35 UTCJun 1, 14:25 UTC13h 50m
2026-05-31 AAR734 HAN → ICN May 31, 17:00 UTCMay 31, 20:35 UTC3h 35m
2026-05-31 AAR733 ICN → HAN May 31, 10:55 UTCMay 31, 14:25 UTC3h 30m
2026-05-30 AAR221 JFK → ICN May 30, 16:25 UTCMay 30, 23:45 UTC7h 20m
2026-05-30 AAR222 ICN → JFK May 30, 00:20 UTCMay 30, 13:15 UTC12h 55m
2026-05-29 AAR714 TPE → ICN May 29, 09:25 UTCMay 29, 11:30 UTC2h 5m
2026-05-29 AAR713 ICN → TPE May 29, 05:25 UTCMay 29, 07:35 UTC2h 10m
2026-05-29 AAR111 KIX → ICN May 29, 01:55 UTCMay 29, 03:20 UTC1h 25m
2026-05-28 AAR112 ICN → KIX May 28, 22:10 UTCMay 28, 23:30 UTC1h 20m
2026-05-28 AAR211 SFO → ICN May 28, 07:05 UTCMay 28, 18:55 UTC11h 50m
2026-05-27 AAR212 ICN → SFO May 27, 12:25 UTCMay 27, 22:35 UTC10h 10m
2026-05-26 AAR221 JFK → ICN May 26, 17:55 UTCMay 27, 08:35 UTC14h 41m
2026-05-26 AAR222 ICN → JFK May 26, 01:49 UTCMay 26, 15:24 UTC13h 35m
2026-05-24 AAR221 JFK → ICN May 24, 18:55 UTCMay 25, 08:45 UTC13h 50m
2026-05-24 AAR222 ICN → JFK May 24, 01:20 UTCMay 24, 14:35 UTC13h 15m
2026-05-23 AAR752 SIN → ICN May 23, 20:00 UTCMay 23, 23:05 UTC3h 5m
2026-05-23 AAR751 ICN → SIN May 23, 14:20 UTCMay 23, 14:50 UTC30m
2026-05-23 AAR751 ICN → SIN May 23, 09:15 UTCMay 23, 11:55 UTC2h 40m
2026-05-23 AAR512 BCN → ICN May 23, 06:45 UTCMay 23, 07:10 UTC25m
2026-05-22 AAR512 BCN → ICN May 22, 19:25 UTCMay 23, 00:05 UTC4h 40m
2026-05-22 AAR511 ICN → BCN May 22, 12:20 UTCMay 22, 17:00 UTC4h 40m
2026-05-22 AAR511 ICN → BCN May 22, 03:35 UTCMay 22, 03:55 UTC20m
2026-05-21 AAR742 BKK → ICN May 21, 18:40 UTCMay 21, 23:40 UTC5h 0m
2026-05-21 AAR741 ICN → BKK May 21, 11:00 UTCMay 21, 15:55 UTC4h 55m
2026-05-21 AAR364 PVG → ICN May 21, 02:10 UTCMay 21, 07:10 UTC5h 0m
2026-05-20 AAR762 CGK → ICN May 20, 16:20 UTCMay 20, 21:20 UTC5h 0m
2026-05-20 AAR762 CGK → ICN May 20, 14:45 UTCMay 20, 14:55 UTC10m
2026-05-20 AAR761 ICN → CGK May 20, 06:30 UTCMay 20, 11:15 UTC4h 45m
2026-05-19 AAR522 LHR → ICN May 19, 16:05 UTCMay 19, 18:55 UTC2h 50m
2026-05-18 AAR521 ICN → LHR May 18, 23:15 UTCMay 19, 13:00 UTC13h 45m
2026-05-18 AAR113 KIX → ICN May 18, 11:45 UTCMay 18, 13:00 UTC1h 15m
2026-05-18 AAR114 ICN → KIX May 18, 08:30 UTCMay 18, 10:05 UTC1h 35m
2026-05-18 AAR548 - May 18, 06:05 UTCMay 18, 06:35 UTC30m
2026-05-17 AAR548 - May 17, 20:25 UTCMay 18, 05:20 UTC8h 55m
2026-05-17 AAR547 - May 17, 15:15 UTCMay 17, 18:30 UTC3h 15m
2026-05-17 AAR547 - May 17, 06:30 UTCMay 17, 06:50 UTC20m
2026-05-17 AAR522 LHR → ICN May 17, 04:00 UTCMay 17, 04:25 UTC25m
2026-05-16 AAR522 LHR → ICN May 16, 16:25 UTCMay 16, 21:00 UTC4h 35m
2026-05-16 AAR521 ICN → LHR May 16, 07:35 UTCMay 16, 12:40 UTC5h 5m
2026-05-15 AAR521 ICN → LHR May 15, 23:15 UTCMay 15, 23:30 UTC15m

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 HL8361 page for operator, model, and routing details .

Mode-S 71C361 frequently asked

What is Mode-S code 71C361?
71C361 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8361.
Where is Mode-S 71C361 registered?
Mode-S code 71C361 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 71C361 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C361, octal 34341541, decimal 7,455,585.
What flights does 71C361 operate?
Mode-S 71C361 has broadcast 20 distinct callsigns, including AAR762, AAR761, AAR522, AAR521, AAR222.