Apparatus

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sensors Mode-S transponder

71C038

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

Currently assigned to HL8038 · AIRBUS A-321

Hex
71C038
Octal
34340070
Decimal
7,454,776
Country
KR
Tail
HL8038
Type
A321
No current signal · last broadcast 1h ago
Flights observed
311
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 71C038.

Country allocation

The ICAO 24-bit address 71C038 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
AAR3365 Asiana Airlines 33 2026-05-12
AAR1135 Asiana Airlines 28 2026-05-12
AAR1145 Asiana Airlines 26 2026-05-10
AAR3355 Asiana Airlines 25 2026-05-12
AAR117 - 15 2026-07-12
AAR118 - 14 2026-07-12
AAR151 - 12 2026-06-24
AAR152 - 10 2026-06-24
AAR114 - 6 2026-07-14
AAR113 - 6 2026-07-14
AAR112 - 5 2026-07-09
AAR111 - 5 2026-07-10
AAR334 - 4 2026-07-12
AAR304 - 4 2026-07-09
AAR303 - 4 2026-07-09
AAR714 Asiana Airlines 3 2026-06-11
AAR365 - 3 2026-06-28
AAR340 - 3 2026-06-25
AAR339 - 3 2026-06-25
AAR333 - 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAR113 - Jul 14, 11:05 UTCJul 14, 12:00 UTC55m
2026-07-14 AAR114 ICN → KIX Jul 14, 08:05 UTCJul 14, 09:25 UTC1h 20m
2026-07-14 AAR338 - Jul 14, 04:40 UTCJul 14, 05:05 UTC25m
2026-07-14 AAR337 - Jul 14, 01:00 UTCJul 14, 01:40 UTC40m
2026-07-13 AAR368 ICN → ICN Jul 13, 11:25 UTCJul 13, 18:45 UTC7h 20m
2026-07-13 AAR133 - Jul 13, 07:35 UTCJul 13, 08:35 UTC1h 0m
2026-07-13 AAR134 - Jul 13, 05:05 UTCJul 13, 05:50 UTC45m
2026-07-12 AAR117 KIX → ICN Jul 12, 15:30 UTCJul 12, 16:50 UTC1h 20m
2026-07-12 AAR118 ICN → KIX Jul 12, 12:05 UTCJul 12, 13:20 UTC1h 15m
2026-07-12 AAR334 - Jul 12, 09:15 UTCJul 12, 09:40 UTC25m
2026-07-12 AAR334 - Jul 12, 08:10 UTCJul 12, 08:20 UTC10m
2026-07-12 AAR333 - Jul 12, 04:20 UTCJul 12, 04:40 UTC20m
2026-07-11 AAR117 KIX → ICN Jul 11, 15:20 UTCJul 11, 16:35 UTC1h 15m
2026-07-11 AAR118 ICN → KIX Jul 11, 11:50 UTCJul 11, 13:15 UTC1h 25m
2026-07-10 AAR123 - Jul 10, 10:25 UTCJul 10, 11:55 UTC1h 30m
2026-07-10 AAR124 - Jul 10, 07:25 UTCJul 10, 08:45 UTC1h 20m
2026-07-10 AAR111 KIX → ICN Jul 10, 01:55 UTCJul 10, 03:30 UTC1h 35m
2026-07-09 AAR112 ICN → KIX Jul 9, 22:10 UTCJul 9, 23:35 UTC1h 25m
2026-07-09 AAR123 - Jul 9, 10:25 UTCJul 9, 11:50 UTC1h 25m
2026-07-09 AAR124 - Jul 9, 07:40 UTCJul 9, 09:00 UTC1h 20m
2026-07-09 AAR304 - Jul 9, 05:30 UTCJul 9, 05:50 UTC20m
2026-07-09 AAR303 - Jul 9, 00:30 UTCJul 9, 00:50 UTC20m
2026-07-08 AAR105 - Jul 8, 11:05 UTCJul 8, 13:10 UTC2h 5m
2026-07-08 AAR106 - Jul 8, 06:55 UTCJul 8, 08:55 UTC2h 0m
2026-07-08 AAR115 - Jul 8, 00:50 UTCJul 8, 02:15 UTC1h 25m
2026-07-07 AAR116 - Jul 7, 11:00 UTCJul 7, 12:25 UTC1h 25m
2026-07-06 AAR105 - Jul 6, 11:00 UTCJul 6, 13:15 UTC2h 15m
2026-07-06 AAR106 ICN → NRT Jul 6, 07:00 UTCJul 6, 08:55 UTC1h 55m
2026-07-06 AAR121 - Jul 6, 03:55 UTCJul 6, 05:35 UTC1h 40m
2026-07-06 AAR122 - Jul 6, 01:00 UTCJul 6, 02:25 UTC1h 25m
2026-07-05 AAR117 KIX → ICN Jul 5, 15:30 UTCJul 5, 17:00 UTC1h 30m
2026-07-05 AAR118 ICN → KIX Jul 5, 12:00 UTCJul 5, 13:25 UTC1h 25m
2026-07-04 AAR378 - Jul 4, 13:00 UTCJul 4, 13:20 UTC20m
2026-07-04 AAR377 - Jul 4, 10:20 UTCJul 4, 10:40 UTC20m
2026-07-04 AAR115 - Jul 4, 00:55 UTCJul 4, 02:20 UTC1h 25m
2026-07-03 AAR116 ICN → KIX Jul 3, 11:00 UTCJul 3, 12:20 UTC1h 20m
2026-07-03 AAR133 - Jul 3, 07:45 UTCJul 3, 08:45 UTC1h 0m
2026-07-03 AAR134 - Jul 3, 05:15 UTCJul 3, 06:05 UTC50m
2026-07-03 AAR115 - Jul 3, 00:50 UTCJul 3, 02:15 UTC1h 25m
2026-07-02 AAR116 ICN → KIX Jul 2, 10:55 UTCJul 2, 12:10 UTC1h 15m
2026-07-02 AAR350 - Jul 2, 04:15 UTCJul 2, 09:15 UTC5h 0m
2026-07-01 AAR380 CGQ → ICN Jul 1, 10:45 UTCJul 1, 11:10 UTC25m
2026-07-01 AAR379 ICN → CGQ Jul 1, 06:35 UTCJul 1, 07:00 UTC25m
2026-07-01 AAR332 - Jul 1, 03:55 UTCJul 1, 04:15 UTC20m
2026-07-01 AAR332 - Jul 1, 02:55 UTCJul 1, 03:05 UTC10m
2026-06-30 AAR331 - Jun 30, 23:50 UTCJul 1, 00:10 UTC20m
2026-06-30 AAR103 - Jun 30, 07:55 UTCJun 30, 09:55 UTC2h 0m
2026-06-30 AAR104 ICN → NRT Jun 30, 03:50 UTCJun 30, 05:50 UTC2h 0m
2026-06-28 AAR324 - Jun 28, 19:34 UTCJun 28, 19:59 UTC25m
2026-06-28 AAR323 - Jun 28, 11:55 UTCJun 28, 12:15 UTC20m

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 HL8038 page for operator, model, and routing details .

Mode-S 71C038 frequently asked

What is Mode-S code 71C038?
71C038 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8038.
Where is Mode-S 71C038 registered?
Mode-S code 71C038 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 71C038 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C038, octal 34340070, decimal 7,454,776.
What flights does 71C038 operate?
Mode-S 71C038 has broadcast 20 distinct callsigns, including AAR3365, AAR1135, AAR1145, AAR3355, AAR117.