Apparatus

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sensors Mode-S transponder

71C359

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

Currently assigned to HL8359 · AIRBUS A-350-900

Hex
71C359
Octal
34341531
Decimal
7,455,577
Country
KR
Tail
HL8359
Type
A359
Broadcasting now · callsign AAR211 · 19,675 ft
Flights observed
245
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:35 UTC

Current position

71C359 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C359 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
AAR761 Asiana Airlines 16 2026-07-25
AAR521 - 16 2026-07-15
AAR522 - 14 2026-07-16
AAR512 - 14 2026-07-23
AAR511 Asiana Airlines 13 2026-07-22
AAR762 Asiana Airlines 11 2026-07-25
AAR742 - 11 2026-07-12
AAR741 - 11 2026-07-12
AAR221 Asiana Airlines 10 2026-07-17
AAR502 Asiana Airlines 8 2026-07-26
AAR222 Asiana Airlines 8 2026-07-17
AAR581 - 7 2026-07-11
AAR501 Asiana Airlines 7 2026-07-26
AAR734 Asiana Airlines 6 2026-07-23
AAR582 - 6 2026-07-12
AAR541 - 6 2026-07-07
AAR752 Asiana Airlines 5 2026-06-06
AAR542 - 5 2026-07-08
AAR212 - 5 2026-07-13
AAR211 - 5 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAR502 CDG → ICN Jul 26, 17:30 UTCJul 26, 21:35 UTC4h 5m
2026-07-26 AAR501 ICN → CDG Jul 26, 01:30 UTCJul 26, 14:25 UTC12h 56m
2026-07-25 AAR762 CGK → ICN Jul 25, 16:35 UTCJul 25, 21:45 UTC5h 10m
2026-07-25 AAR761 ICN → CGK Jul 25, 12:30 UTCJul 25, 12:50 UTC20m
2026-07-25 AAR761 ICN → CGK Jul 25, 06:35 UTCJul 25, 11:10 UTC4h 35m
2026-07-25 AAR548 - Jul 25, 04:10 UTCJul 25, 04:40 UTC30m
2026-07-24 AAR548 - Jul 24, 18:40 UTCJul 25, 03:20 UTC8h 40m
2026-07-24 AAR547 - Jul 24, 06:15 UTCJul 24, 16:50 UTC10h 35m
2026-07-24 AAR547 - Jul 24, 05:05 UTCJul 24, 05:25 UTC20m
2026-07-23 AAR734 HAN → ICN Jul 23, 16:45 UTCJul 23, 20:40 UTC3h 55m
2026-07-23 - - Jul 23, 14:30 UTCJul 23, 14:40 UTC10m
2026-07-23 AAR733 - Jul 23, 11:10 UTCJul 23, 11:50 UTC40m
2026-07-23 AAR512 - Jul 23, 06:35 UTCJul 23, 06:55 UTC20m
2026-07-22 AAR512 - Jul 22, 19:35 UTCJul 22, 23:30 UTC3h 55m
2026-07-22 AAR511 ICN → BCN Jul 22, 04:35 UTCJul 22, 16:50 UTC12h 15m
2026-07-22 AAR511 ICN → BCN Jul 22, 03:30 UTCJul 22, 03:50 UTC20m
2026-07-17 AAR221 JFK → ICN Jul 17, 22:45 UTCJul 18, 06:40 UTC7h 56m
2026-07-17 AAR221 JFK → ICN Jul 17, 16:10 UTCJul 17, 20:10 UTC4h 0m
2026-07-17 AAR222 ICN → JFK Jul 17, 00:14 UTCJul 17, 13:40 UTC13h 25m
2026-07-16 AAR762 - Jul 16, 16:25 UTCJul 16, 21:30 UTC5h 5m
2026-07-16 AAR761 - Jul 16, 12:44 UTCJul 16, 13:05 UTC20m
2026-07-16 AAR761 - Jul 16, 06:40 UTCJul 16, 11:25 UTC4h 45m
2026-07-16 AAR522 - Jul 16, 03:30 UTCJul 16, 03:50 UTC20m
2026-07-15 AAR522 - Jul 15, 16:25 UTCJul 16, 02:45 UTC10h 20m
2026-07-15 AAR521 - Jul 15, 00:50 UTCJul 15, 13:15 UTC12h 25m
2026-07-14 AAR521 - Jul 14, 23:35 UTCJul 14, 23:50 UTC15m
2026-07-14 AAR211 SFO → ICN Jul 14, 07:00 UTCJul 14, 18:30 UTC11h 30m
2026-07-13 AAR212 - Jul 13, 12:25 UTCJul 13, 23:15 UTC10h 50m
2026-07-12 AAR742 - Jul 12, 21:10 UTCJul 13, 00:01 UTC2h 50m
2026-07-12 AAR742 - Jul 12, 19:01 UTCJul 12, 19:10 UTC10m
2026-07-12 AAR741 - Jul 12, 15:35 UTCJul 12, 15:50 UTC15m
2026-07-12 AAR741 - Jul 12, 11:01 UTCJul 12, 13:25 UTC2h 25m
2026-07-12 AAR582 - Jul 12, 06:55 UTCJul 12, 07:15 UTC20m
2026-07-11 AAR582 - Jul 11, 20:25 UTCJul 12, 06:01 UTC9h 35m
2026-07-11 AAR581 - Jul 11, 06:15 UTCJul 11, 17:30 UTC11h 15m
2026-07-11 AAR581 - Jul 11, 05:05 UTCJul 11, 05:20 UTC15m
2026-07-10 AAR211 - Jul 10, 07:25 UTCJul 10, 18:55 UTC11h 30m
2026-07-08 AAR212 - Jul 8, 13:10 UTCJul 8, 23:15 UTC10h 5m
2026-07-08 AAR542 - Jul 8, 04:15 UTCJul 8, 04:35 UTC20m
2026-07-07 AAR542 - Jul 7, 17:55 UTCJul 8, 03:25 UTC9h 30m
2026-07-07 AAR541 - Jul 7, 03:50 UTCJul 7, 15:25 UTC11h 35m
2026-07-07 AAR541 - Jul 7, 02:30 UTCJul 7, 02:50 UTC20m
2026-07-05 AAR203 - Jul 5, 06:30 UTCJul 5, 18:40 UTC12h 10m
2026-07-04 AAR204 - Jul 4, 13:05 UTCJul 4, 23:50 UTC10h 45m
2026-07-03 AAR221 JFK → ICN Jul 3, 16:15 UTCJul 4, 06:35 UTC14h 20m
2026-07-03 AAR222 - Jul 3, 00:00 UTCJul 3, 13:20 UTC13h 20m
2026-07-02 AAR762 - Jul 2, 16:25 UTCJul 2, 21:45 UTC5h 20m
2026-07-02 AAR761 - Jul 2, 12:30 UTCJul 2, 12:45 UTC15m
2026-07-02 AAR761 - Jul 2, 06:15 UTCJul 2, 11:10 UTC4h 55m
2026-07-01 AAR762 - Jul 1, 16:50 UTCJul 1, 21:55 UTC5h 5m

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 HL8359 page for operator, model, and routing details .

Mode-S 71C359 frequently asked

What is Mode-S code 71C359?
71C359 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8359.
Where is Mode-S 71C359 registered?
Mode-S code 71C359 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 71C359 broadcasting right now?
Yes. Mode-S 71C359 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C359, octal 34341531, decimal 7,455,577.
What flights does 71C359 operate?
Mode-S 71C359 has broadcast 20 distinct callsigns, including AAR761, AAR521, AAR522, AAR512, AAR511.