Apparatus

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sensors Mode-S transponder

71C078

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

Currently assigned to HL8078 · AIRBUS A-350-900

Hex
71C078
Octal
34340170
Decimal
7,454,840
Country
KR
Tail
HL8078
Type
A359
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
271
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 71C078.

Country allocation

The ICAO 24-bit address 71C078 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
AAR546 - 15 2026-06-19
AAR512 Asiana Airlines 14 2026-07-05
AAR761 Asiana Airlines 12 2026-07-23
AAR741 Asiana Airlines 12 2026-07-25
AAR545 - 12 2026-06-18
AAR521 - 12 2026-07-15
AAR742 Asiana Airlines 11 2026-07-25
AAR522 - 11 2026-07-17
AAR548 - 10 2026-07-26
AAR547 - 10 2026-07-26
AAR511 - 10 2026-07-04
AAR762 Asiana Airlines 7 2026-07-23
AAR733 - 7 2026-07-15
AAR211 Asiana Airlines 7 2026-05-16
AAR752 - 6 2026-07-13
AAR751 - 6 2026-07-13
AAR562 Asiana Airlines 6 2026-07-25
AAR542 Asiana Airlines 6 2026-07-22
AAR541 Asiana Airlines 6 2026-07-21
AAR212 Asiana Airlines 6 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAR548 - Jul 26, 18:25 UTCJul 26, 21:10 UTC2h 45m
2026-07-26 AAR547 - Jul 26, 04:15 UTCJul 26, 15:40 UTC11h 26m
2026-07-25 AAR742 BKK → ICN Jul 25, 23:30 UTCJul 25, 23:50 UTC20m
2026-07-25 AAR742 BKK → ICN Jul 25, 18:50 UTCJul 25, 20:25 UTC1h 35m
2026-07-25 AAR741 ICN → BKK Jul 25, 14:35 UTCJul 25, 16:20 UTC1h 45m
2026-07-25 AAR741 ICN → BKK Jul 25, 10:55 UTCJul 25, 11:35 UTC40m
2026-07-25 AAR562 FCO → ICN Jul 25, 06:50 UTCJul 25, 07:10 UTC20m
2026-07-24 AAR562 FCO → ICN Jul 24, 20:45 UTCJul 25, 06:00 UTC9h 15m
2026-07-24 AAR561 ICN → FCO Jul 24, 06:00 UTCJul 24, 18:20 UTC12h 20m
2026-07-23 AAR762 CGK → ICN Jul 23, 16:35 UTCJul 23, 21:35 UTC5h 0m
2026-07-23 AAR761 ICN → CGK Jul 23, 12:55 UTCJul 23, 13:15 UTC20m
2026-07-23 AAR761 ICN → CGK Jul 23, 06:45 UTCJul 23, 11:25 UTC4h 40m
2026-07-22 AAR762 CGK → ICN Jul 22, 16:40 UTCJul 22, 21:40 UTC5h 0m
2026-07-22 AAR761 ICN → CGK Jul 22, 13:10 UTCJul 22, 13:25 UTC15m
2026-07-22 AAR761 ICN → CGK Jul 22, 10:20 UTCJul 22, 11:45 UTC1h 25m
2026-07-22 AAR542 FRA → ICN Jul 22, 04:05 UTCJul 22, 04:30 UTC25m
2026-07-21 AAR542 FRA → ICN Jul 21, 18:00 UTCJul 22, 03:20 UTC9h 20m
2026-07-21 AAR541 ICN → FRA Jul 21, 03:40 UTCJul 21, 15:25 UTC11h 45m
2026-07-21 AAR541 ICN → FRA Jul 21, 02:20 UTCJul 21, 02:45 UTC25m
2026-07-20 AAR742 BKK → ICN Jul 20, 19:30 UTCJul 21, 00:30 UTC4h 59m
2026-07-20 AAR741 ICN → BKK Jul 20, 11:00 UTCJul 20, 15:50 UTC4h 50m
2026-07-20 AAR562 FCO → ICN Jul 20, 05:35 UTCJul 20, 06:00 UTC25m
2026-07-19 AAR562 FCO → ICN Jul 19, 19:50 UTCJul 20, 04:50 UTC9h 0m
2026-07-19 AAR561 - Jul 19, 05:50 UTCJul 19, 17:20 UTC11h 30m
2026-07-19 AAR561 - Jul 19, 04:40 UTCJul 19, 05:00 UTC20m
2026-07-18 AAR742 BKK → ICN Jul 18, 19:35 UTCJul 19, 00:40 UTC5h 5m
2026-07-18 AAR741 - Jul 18, 15:35 UTCJul 18, 15:50 UTC15m
2026-07-18 AAR741 - Jul 18, 11:05 UTCJul 18, 13:45 UTC2h 40m
2026-07-17 AAR762 CGK → ICN Jul 17, 16:29 UTCJul 17, 21:55 UTC5h 25m
2026-07-17 AAR761 - Jul 17, 12:35 UTCJul 17, 12:55 UTC20m
2026-07-17 AAR761 - Jul 17, 06:29 UTCJul 17, 11:10 UTC4h 40m
2026-07-17 AAR522 - Jul 17, 02:59 UTCJul 17, 03:25 UTC25m
2026-07-16 AAR522 - Jul 16, 16:09 UTCJul 17, 02:20 UTC10h 10m
2026-07-15 AAR521 ICN → LHR Jul 15, 23:15 UTCJul 16, 12:49 UTC13h 35m
2026-07-15 AAR734 - Jul 15, 17:00 UTCJul 15, 20:50 UTC3h 50m
2026-07-15 AAR733 - Jul 15, 14:25 UTCJul 15, 14:35 UTC10m
2026-07-15 AAR733 - Jul 15, 11:10 UTCJul 15, 11:50 UTC40m
2026-07-15 AAR562 - Jul 15, 05:55 UTCJul 15, 06:20 UTC25m
2026-07-14 AAR562 - Jul 14, 20:00 UTCJul 15, 05:05 UTC9h 4m
2026-07-14 AAR561 - Jul 14, 06:00 UTCJul 14, 17:20 UTC11h 20m
2026-07-14 AAR561 - Jul 14, 04:50 UTCJul 14, 05:10 UTC20m
2026-07-13 AAR752 - Jul 13, 18:15 UTCJul 13, 21:20 UTC3h 5m
2026-07-13 AAR752 - Jul 13, 15:05 UTCJul 13, 15:15 UTC10m
2026-07-13 AAR751 - Jul 13, 07:35 UTCJul 13, 13:05 UTC5h 30m
2026-07-13 AAR548 - Jul 13, 03:50 UTCJul 13, 04:15 UTC25m
2026-07-12 AAR548 - Jul 12, 18:15 UTCJul 13, 02:55 UTC8h 40m
2026-07-12 AAR547 - Jul 12, 05:10 UTCJul 12, 15:55 UTC10h 45m
2026-07-12 AAR547 - Jul 12, 04:01 UTCJul 12, 04:20 UTC20m
2026-07-11 AAR203 - Jul 11, 06:30 UTCJul 11, 18:35 UTC12h 5m
2026-07-10 AAR204 - Jul 10, 13:10 UTCJul 11, 00:10 UTC11h 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 HL8078 page for operator, model, and routing details .

Mode-S 71C078 frequently asked

What is Mode-S code 71C078?
71C078 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8078.
Where is Mode-S 71C078 registered?
Mode-S code 71C078 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 71C078 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C078, octal 34340170, decimal 7,454,840.
What flights does 71C078 operate?
Mode-S 71C078 has broadcast 20 distinct callsigns, including AAR546, AAR512, AAR761, AAR741, AAR545.