Apparatus

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sensors Mode-S transponder

71C522

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

Currently assigned to HL8522 · AIRBUS A-350-900

Hex
71C522
Octal
34342442
Decimal
7,456,034
Country
KR
Tail
HL8522
Type
A359
No current signal · last broadcast 5h ago
Flights observed
126
Distinct callsigns
20
Country
KR
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 71C522.

Country allocation

The ICAO 24-bit address 71C522 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
AAR502 Asiana Airlines 11 2026-05-18
AAR501 Asiana Airlines 10 2026-05-17
AAR752 Asiana Airlines 8 2026-05-27
AAR212 Asiana Airlines 8 2026-05-05
AAR762 Asiana Airlines 7 2026-05-29
AAR751 Asiana Airlines 7 2026-05-27
AAR546 Asiana Airlines 6 2026-05-27
AAR545 Asiana Airlines 6 2026-05-26
AAR522 Asiana Airlines 6 2026-05-29
AAR761 Asiana Airlines 5 2026-05-29
AAR521 Asiana Airlines 5 2026-05-28
AAR211 Asiana Airlines 5 2026-05-06
AAR113 Asiana Airlines 5 2026-05-16
AAR512 Asiana Airlines 4 2026-05-20
AAR114 Asiana Airlines 4 2026-05-16
AAR582 - 3 2026-05-22
AAR542 Asiana Airlines 3 2026-04-14
AAR541 Asiana Airlines 3 2026-04-14
AAR511 Asiana Airlines 3 2026-05-19
AAR115 Asiana Airlines 3 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AAR762 CGK → ICN May 29, 16:55 UTCMay 29, 21:40 UTC4h 45m
2026-05-29 AAR762 CGK → ICN May 29, 14:55 UTCMay 29, 15:05 UTC10m
2026-05-29 AAR761 ICN → CGK May 29, 06:35 UTCMay 29, 11:15 UTC4h 40m
2026-05-29 AAR522 LHR → ICN May 29, 03:10 UTCMay 29, 03:30 UTC20m
2026-05-28 AAR522 LHR → ICN May 28, 16:05 UTCMay 29, 02:25 UTC10h 20m
2026-05-28 AAR521 ICN → LHR May 28, 00:55 UTCMay 28, 13:55 UTC13h 0m
2026-05-27 AAR521 ICN → LHR May 27, 23:40 UTCMay 27, 23:55 UTC15m
2026-05-27 AAR752 SIN → ICN May 27, 18:00 UTCMay 27, 21:10 UTC3h 10m
2026-05-27 AAR751 ICN → SIN May 27, 07:40 UTCMay 27, 09:55 UTC2h 15m
2026-05-27 AAR546 PRG → ICN May 27, 03:09 UTCMay 27, 03:29 UTC20m
2026-05-26 AAR546 PRG → ICN May 26, 17:04 UTCMay 27, 02:29 UTC9h 25m
2026-05-26 AAR545 ICN → PRG May 26, 03:19 UTCMay 26, 14:30 UTC11h 10m
2026-05-26 AAR545 ICN → PRG May 26, 02:04 UTCMay 26, 02:24 UTC20m
2026-05-25 AAR752 SIN → ICN May 25, 18:15 UTCMay 25, 21:24 UTC3h 10m
2026-05-25 AAR751 ICN → SIN May 25, 07:25 UTCMay 25, 13:00 UTC5h 35m
2026-05-25 AAR522 LHR → ICN May 25, 03:55 UTCMay 25, 04:15 UTC20m
2026-05-24 AAR522 LHR → ICN May 24, 16:30 UTCMay 24, 21:05 UTC4h 35m
2026-05-23 AAR521 ICN → LHR May 23, 23:20 UTCMay 24, 13:05 UTC13h 45m
2026-05-23 AAR7543 - May 23, 13:30 UTCMay 23, 19:10 UTC5h 41m
2026-05-23 AAR7533 - May 23, 10:45 UTCMay 23, 11:20 UTC35m
2026-05-23 AAR7533 - May 23, 05:25 UTCMay 23, 08:00 UTC2h 35m
2026-05-23 AAR115 KIX → ICN May 23, 00:50 UTCMay 23, 02:20 UTC1h 30m
2026-05-22 AAR116 ICN → KIX May 22, 10:55 UTCMay 22, 12:15 UTC1h 20m
2026-05-22 AAR582 - May 22, 07:10 UTCMay 22, 07:35 UTC25m
2026-05-21 AAR582 - May 21, 20:20 UTCMay 22, 00:15 UTC3h 55m
2026-05-21 AAR581 ICN → MXP May 21, 05:20 UTCMay 21, 18:10 UTC12h 50m
2026-05-20 AAR734 HAN → ICN May 20, 11:10 UTCMay 20, 20:35 UTC9h 25m
2026-05-20 AAR512 BCN → ICN May 20, 06:45 UTCMay 20, 07:20 UTC35m
2026-05-19 AAR512 BCN → ICN May 19, 19:20 UTCMay 20, 05:50 UTC10h 31m
2026-05-19 AAR511 ICN → BCN May 19, 03:40 UTCMay 19, 17:20 UTC13h 40m
2026-05-18 AAR752 SIN → ICN May 18, 18:05 UTCMay 18, 21:15 UTC3h 9m
2026-05-18 AAR751 ICN → SIN May 18, 07:35 UTCMay 18, 13:05 UTC5h 30m
2026-05-18 AAR502 CDG → ICN May 18, 04:40 UTCMay 18, 05:00 UTC20m
2026-05-17 AAR502 CDG → ICN May 17, 17:30 UTCMay 18, 03:50 UTC10h 20m
2026-05-17 AAR501 ICN → CDG May 17, 10:00 UTCMay 17, 14:40 UTC4h 40m
2026-05-17 AAR501 ICN → CDG May 17, 01:35 UTCMay 17, 01:50 UTC15m
2026-05-16 AAR113 KIX → ICN May 16, 11:16 UTCMay 16, 12:31 UTC1h 15m
2026-05-16 AAR114 ICN → KIX May 16, 08:01 UTCMay 16, 09:25 UTC1h 25m
2026-05-16 AAR502 CDG → ICN May 16, 04:45 UTCMay 16, 05:05 UTC20m
2026-05-15 AAR502 CDG → ICN May 15, 17:25 UTCMay 15, 21:35 UTC4h 10m
2026-05-15 AAR501 ICN → CDG May 15, 10:20 UTCMay 15, 15:00 UTC4h 39m
2026-05-15 AAR501 ICN → CDG May 15, 01:45 UTCMay 15, 02:00 UTC15m
2026-05-14 AAR752 SIN → ICN May 14, 18:25 UTCMay 14, 21:20 UTC2h 55m
2026-05-14 AAR752 SIN → ICN May 14, 15:15 UTCMay 14, 15:25 UTC10m
2026-05-14 AAR751 ICN → SIN May 14, 07:30 UTCMay 14, 10:25 UTC2h 55m
2026-05-14 AAR502 CDG → ICN May 14, 04:55 UTCMay 14, 05:20 UTC25m
2026-05-13 AAR502 CDG → ICN May 13, 17:30 UTCMay 13, 21:35 UTC4h 5m
2026-05-13 AAR501 ICN → CDG May 13, 09:50 UTCMay 13, 14:40 UTC4h 50m
2026-05-13 AAR501 ICN → CDG May 13, 01:35 UTCMay 13, 01:45 UTC10m
2026-05-12 AAR762 CGK → ICN May 12, 16:15 UTCMay 12, 21:15 UTC5h 0m

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 HL8522 page for operator, model, and routing details .

Mode-S 71C522 frequently asked

What is Mode-S code 71C522?
71C522 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8522.
Where is Mode-S 71C522 registered?
Mode-S code 71C522 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 71C522 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C522, octal 34342442, decimal 7,456,034.
What flights does 71C522 operate?
Mode-S 71C522 has broadcast 20 distinct callsigns, including AAR502, AAR501, AAR752, AAR212, AAR762.