Apparatus

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sensors Mode-S transponder

71C079

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

Currently assigned to HL8079 · AIRBUS A-350-900

Hex
71C079
Octal
34340171
Decimal
7,454,841
Country
KR
Tail
HL8079
Type
A359
No current signal · last broadcast Jul 26, 18:30 UTC
Flights observed
275
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 18:30 UTC

Last known position

Most recent position reported by Mode-S 71C079.

Country allocation

The ICAO 24-bit address 71C079 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 - 18 2026-06-29
AAR522 - 16 2026-07-09
AAR521 Asiana Airlines 16 2026-07-08
AAR762 - 14 2026-06-29
AAR512 - 13 2026-07-11
AAR511 - 13 2026-07-10
AAR502 Asiana Airlines 13 2026-07-24
AAR542 - 12 2026-06-26
AAR501 Asiana Airlines 12 2026-07-24
AAR541 - 10 2026-06-25
AAR752 Asiana Airlines 9 2026-07-23
AAR751 Asiana Airlines 9 2026-07-23
AAR548 - 9 2026-06-15
AAR204 Asiana Airlines 9 2026-07-25
AAR203 Asiana Airlines 9 2026-07-26
AAR547 - 8 2026-06-14
AAR546 - 8 2026-06-29
AAR741 - 7 2026-07-09
AAR742 - 6 2026-07-09
AAR582 - 4 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAR203 LAX → ICN Jul 26, 06:15 UTCJul 26, 18:30 UTC12h 16m
2026-07-25 AAR204 ICN → LAX Jul 25, 14:10 UTCJul 26, 01:10 UTC11h 0m
2026-07-25 AAR366 PVG → ICN Jul 25, 06:50 UTCJul 25, 12:00 UTC5h 10m
2026-07-24 AAR502 CDG → ICN Jul 24, 17:25 UTCJul 25, 04:50 UTC11h 25m
2026-07-24 AAR501 ICN → CDG Jul 24, 02:50 UTCJul 24, 15:00 UTC12h 10m
2026-07-24 AAR501 ICN → CDG Jul 24, 01:40 UTCJul 24, 02:00 UTC20m
2026-07-23 AAR752 SIN → ICN Jul 23, 18:10 UTCJul 23, 21:10 UTC3h 0m
2026-07-23 AAR751 ICN → SIN Jul 23, 12:55 UTCJul 23, 13:20 UTC25m
2026-07-23 AAR751 ICN → SIN Jul 23, 07:35 UTCJul 23, 10:20 UTC2h 45m
2026-07-23 AAR502 CDG → ICN Jul 23, 05:05 UTCJul 23, 05:30 UTC25m
2026-07-22 AAR502 CDG → ICN Jul 22, 18:25 UTCJul 23, 04:15 UTC9h 50m
2026-07-22 AAR501 ICN → CDG Jul 22, 04:00 UTCJul 22, 16:05 UTC12h 5m
2026-07-22 AAR501 ICN → CDG Jul 22, 02:40 UTCJul 22, 03:05 UTC25m
2026-07-21 AAR203 LAX → ICN Jul 21, 06:20 UTCJul 21, 18:05 UTC11h 45m
2026-07-20 AAR204 ICN → LAX Jul 20, 13:15 UTCJul 21, 00:30 UTC11h 14m
2026-07-20 AAR366 PVG → ICN Jul 20, 09:35 UTCJul 20, 10:15 UTC40m
2026-07-20 AAR365 ICN → PVG Jul 20, 05:25 UTCJul 20, 06:05 UTC40m
2026-07-19 AAR105 NRT → ICN Jul 19, 11:00 UTCJul 19, 12:55 UTC1h 55m
2026-07-19 AAR106 ICN → NRT Jul 19, 07:05 UTCJul 19, 09:00 UTC1h 55m
2026-07-19 AAR502 - Jul 19, 04:20 UTCJul 19, 04:50 UTC30m
2026-07-18 AAR502 - Jul 18, 17:40 UTCJul 19, 03:35 UTC9h 55m
2026-07-18 AAR501 ICN → CDG Jul 18, 02:45 UTCJul 18, 14:50 UTC12h 6m
2026-07-18 AAR501 ICN → CDG Jul 18, 01:30 UTCJul 18, 01:54 UTC25m
2026-07-17 AAR203 LAX → ICN Jul 17, 06:20 UTCJul 17, 18:29 UTC12h 10m
2026-07-16 AAR204 ICN → LAX Jul 16, 15:55 UTCJul 17, 03:14 UTC11h 20m
2026-07-16 AAR502 - Jul 16, 04:15 UTCJul 16, 04:40 UTC25m
2026-07-15 AAR502 - Jul 15, 17:50 UTCJul 16, 03:35 UTC9h 45m
2026-07-15 AAR501 - Jul 15, 02:45 UTCJul 15, 15:00 UTC12h 15m
2026-07-15 AAR501 - Jul 15, 01:30 UTCJul 15, 01:50 UTC20m
2026-07-14 AAR203 - Jul 14, 06:25 UTCJul 14, 18:20 UTC11h 55m
2026-07-13 AAR204 - Jul 13, 13:35 UTCJul 14, 00:50 UTC11h 15m
2026-07-13 AAR364 ICN → ICN Jul 13, 02:15 UTCJul 13, 07:30 UTC5h 15m
2026-07-12 AAR203 - Jul 12, 06:15 UTCJul 12, 18:15 UTC12h 0m
2026-07-11 AAR204 ICN → LAX Jul 11, 14:20 UTCJul 12, 01:25 UTC11h 5m
2026-07-11 AAR512 - Jul 11, 06:25 UTCJul 11, 06:45 UTC20m
2026-07-10 AAR512 - Jul 10, 19:40 UTCJul 11, 05:35 UTC9h 55m
2026-07-10 AAR511 ICN → BCN Jul 10, 03:20 UTCJul 10, 17:00 UTC13h 40m
2026-07-09 AAR742 - Jul 9, 19:05 UTCJul 10, 00:00 UTC4h 55m
2026-07-09 AAR741 ICN → BKK Jul 9, 11:15 UTCJul 9, 16:05 UTC4h 50m
2026-07-09 AAR522 - Jul 9, 03:15 UTCJul 9, 03:40 UTC25m
2026-07-08 AAR522 - Jul 8, 16:25 UTCJul 9, 02:30 UTC10h 5m
2026-07-08 AAR521 ICN → LHR Jul 8, 01:45 UTCJul 8, 14:15 UTC12h 30m
2026-07-08 AAR521 ICN → LHR Jul 8, 00:25 UTCJul 8, 00:50 UTC25m
2026-07-07 AAR203 - Jul 7, 06:25 UTCJul 7, 18:20 UTC11h 55m
2026-07-06 AAR204 - Jul 6, 13:00 UTCJul 6, 23:35 UTC10h 35m
2026-07-06 AAR562 FCO → ICN Jul 6, 06:05 UTCJul 6, 06:25 UTC20m
2026-07-05 AAR562 FCO → ICN Jul 5, 20:00 UTCJul 6, 05:15 UTC9h 15m
2026-07-05 AAR561 - Jul 5, 06:25 UTCJul 5, 17:35 UTC11h 10m
2026-07-05 AAR561 - Jul 5, 05:15 UTCJul 5, 05:35 UTC20m
2026-07-04 AAR522 - Jul 4, 03:05 UTCJul 4, 03:30 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 HL8079 page for operator, model, and routing details .

Mode-S 71C079 frequently asked

What is Mode-S code 71C079?
71C079 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8079.
Where is Mode-S 71C079 registered?
Mode-S code 71C079 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 71C079 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C079, octal 34340171, decimal 7,454,841.
What flights does 71C079 operate?
Mode-S 71C079 has broadcast 20 distinct callsigns, including AAR761, AAR522, AAR521, AAR762, AAR512.