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 4h ago
Flights observed
246
Distinct callsigns
20
Country
KR
Last broadcast
4h ago

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
AAR542 - 12 2026-06-26
AAR541 - 10 2026-06-25
AAR548 - 9 2026-06-15
AAR752 Asiana Airlines 8 2026-06-03
AAR547 - 8 2026-06-14
AAR546 - 8 2026-06-29
AAR751 Asiana Airlines 7 2026-06-03
AAR741 - 7 2026-07-09
AAR742 - 6 2026-07-09
AAR502 Asiana Airlines 6 2026-05-21
AAR204 - 6 2026-07-13
AAR203 - 6 2026-07-14
AAR582 - 4 2026-06-05
AAR545 - 4 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-03 AAR522 - Jul 3, 16:00 UTCJul 4, 02:20 UTC10h 20m
2026-07-03 AAR521 ICN → LHR Jul 3, 00:55 UTCJul 3, 13:15 UTC12h 20m
2026-07-02 AAR521 ICN → LHR Jul 2, 23:40 UTCJul 3, 00:05 UTC25m
2026-07-02 AAR203 LAX → ICN Jul 2, 06:30 UTCJul 2, 19:05 UTC12h 35m
2026-07-01 AAR204 - Jul 1, 13:10 UTCJul 1, 23:30 UTC10h 20m
2026-07-01 AAR512 BCN → ICN Jul 1, 06:40 UTCJul 1, 07:05 UTC25m
2026-06-30 AAR512 BCN → ICN Jun 30, 19:30 UTCJul 1, 05:50 UTC10h 20m
2026-06-30 AAR511 - Jun 30, 04:40 UTCJun 30, 17:10 UTC12h 30m
2026-06-30 AAR511 - Jun 30, 03:30 UTCJun 30, 03:40 UTC10m
2026-06-29 AAR762 - Jun 29, 16:29 UTCJun 29, 21:34 UTC5h 5m
2026-06-29 AAR762 - Jun 29, 14:50 UTCJun 29, 15:00 UTC10m
2026-06-29 AAR761 - Jun 29, 12:34 UTCJun 29, 12:45 UTC10m
2026-06-29 AAR761 - Jun 29, 06:19 UTCJun 29, 11:10 UTC4h 50m
2026-06-29 AAR546 - Jun 29, 03:10 UTCJun 29, 03:29 UTC20m
2026-06-28 AAR546 - Jun 28, 17:19 UTCJun 29, 02:25 UTC9h 5m
2026-06-28 AAR545 - Jun 28, 02:10 UTCJun 28, 14:39 UTC12h 30m
2026-06-27 AAR105 NRT → ICN Jun 27, 12:04 UTCJun 27, 14:05 UTC2h 0m
2026-06-27 AAR106 - Jun 27, 07:34 UTCJun 27, 09:40 UTC2h 5m
2026-06-27 AAR115 - Jun 27, 01:15 UTCJun 27, 02:35 UTC1h 20m
2026-06-26 AAR116 ICN → KIX Jun 26, 11:20 UTCJun 26, 12:44 UTC1h 25m
2026-06-26 AAR542 - Jun 26, 04:30 UTCJun 26, 04:55 UTC25m
2026-06-25 AAR542 - Jun 25, 18:04 UTCJun 26, 03:39 UTC9h 35m
2026-06-25 AAR541 - Jun 25, 03:40 UTCJun 25, 15:29 UTC11h 50m
2026-06-25 AAR541 - Jun 25, 02:25 UTCJun 25, 02:35 UTC10m
2026-06-24 AAR742 - Jun 24, 19:00 UTCJun 24, 23:50 UTC4h 50m
2026-06-24 AAR741 ICN → BKK Jun 24, 11:05 UTCJun 24, 15:59 UTC4h 55m
2026-06-23 AAR201 LAX → ICN Jun 23, 17:34 UTCJun 24, 05:44 UTC12h 10m
2026-06-23 AAR202 ICN → LAX Jun 23, 04:29 UTCJun 23, 14:39 UTC10h 10m
2026-06-23 AAR115 - Jun 23, 00:50 UTCJun 23, 02:15 UTC1h 25m

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 4h ago.
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.