Apparatus

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sensors Mode-S transponder

71C365

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

Currently assigned to HL8365 · AIRBUS A-321

Hex
71C365
Octal
34341545
Decimal
7,455,589
Country
KR
Tail
HL8365
Type
A321
No current signal · last broadcast 10h ago
Flights observed
145
Distinct callsigns
20
Country
KR
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 71C365.

Country allocation

The ICAO 24-bit address 71C365 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
ABL8021 Air Busan 10 2026-06-01
ABL8028 Air Busan 9 2026-05-30
ABL8824 Air Busan 8 2026-05-30
ABL8025 Air Busan 7 2026-05-30
ABL321 Air Busan 7 2026-05-20
ABL133 Air Busan 6 2026-05-21
ABL126 Air Busan 6 2026-06-02
ABL125 Air Busan 6 2026-06-02
ABL121 Air Busan 6 2026-06-02
ABL111 Air Busan 5 2026-05-29
ABL8811 Air Busan 4 2026-04-28
ABL8040 Air Busan 4 2026-04-28
ABL7325 Air Busan 4 2026-04-15
ABL712 Air Busan 4 2026-05-29
ABL134 Air Busan 4 2026-05-21
ABL122 Air Busan 4 2026-05-26
ABL112 Air Busan 4 2026-05-28
ABL8823 Air Busan 3 2026-05-13
ABL8820 Air Busan 3 2026-05-13
ABL792 Air Busan 3 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 ABL121 KIX → PUS Jun 2, 10:15 UTCJun 2, 10:45 UTC30m
2026-06-02 ABL125 KIX → PUS Jun 2, 05:25 UTCJun 2, 08:45 UTC3h 20m
2026-06-02 ABL126 PUS → KIX Jun 2, 02:55 UTCJun 2, 03:40 UTC45m
2026-06-01 ABL8021 GMP → CJU Jun 1, 06:40 UTCJun 1, 07:10 UTC30m
2026-05-31 ABL773 PUS → DAD May 31, 13:40 UTCJun 1, 05:30 UTC15h 50m
2026-05-30 ABL8025 GMP → CJU May 30, 22:25 UTCMay 30, 22:45 UTC20m
2026-05-30 ABL8824 PUS → GMP May 30, 10:20 UTCMay 30, 10:55 UTC35m
2026-05-30 ABL8021 GMP → CJU May 30, 06:35 UTCMay 30, 07:00 UTC25m
2026-05-30 ABL8028 CJU → GMP May 30, 04:45 UTCMay 30, 05:20 UTC35m
2026-05-29 ABL712 CEB → PUS May 29, 08:55 UTCMay 29, 18:50 UTC9h 55m
2026-05-29 ABL111 NRT → PUS May 29, 02:20 UTCMay 29, 07:45 UTC5h 25m
2026-05-28 ABL112 PUS → NRT May 28, 06:25 UTCMay 29, 00:40 UTC18h 15m
2026-05-28 ABL795 PUS → KHH May 28, 03:55 UTCMay 28, 04:45 UTC50m
2026-05-26 ABL121 KIX → PUS May 26, 10:14 UTCMay 26, 10:44 UTC30m
2026-05-26 ABL122 PUS → KIX May 26, 08:10 UTCMay 26, 08:50 UTC40m
2026-05-26 ABL125 KIX → PUS May 26, 05:25 UTCMay 26, 05:54 UTC30m
2026-05-26 ABL126 PUS → KIX May 26, 03:09 UTCMay 26, 03:45 UTC35m
2026-05-25 ABL121 KIX → PUS May 25, 10:55 UTCMay 25, 11:30 UTC35m
2026-05-25 ABL122 PUS → KIX May 25, 08:05 UTCMay 25, 08:55 UTC50m
2026-05-25 ABL111 NRT → PUS May 25, 03:00 UTCMay 25, 04:10 UTC1h 10m
2026-05-24 ABL382 MFM → PUS May 24, 18:00 UTCMay 24, 19:30 UTC1h 30m
2026-05-24 ABL381 PUS → MFM May 24, 14:35 UTCMay 24, 16:05 UTC1h 30m
2026-05-23 ABL8803 GMP → PUS May 23, 22:35 UTCMay 23, 23:05 UTC30m
2026-05-23 ABL8824 PUS → GMP May 23, 10:15 UTCMay 23, 10:50 UTC35m
2026-05-22 ABL773 PUS → DAD May 22, 13:45 UTCMay 22, 20:15 UTC6h 30m
2026-05-22 ABL8021 GMP → CJU May 22, 06:45 UTCMay 22, 07:05 UTC20m
2026-05-22 ABL8028 CJU → GMP May 22, 04:50 UTCMay 22, 05:30 UTC40m
2026-05-21 ABL133 MYJ → PUS May 21, 09:40 UTCMay 21, 09:55 UTC15m
2026-05-21 ABL134 PUS → MYJ May 21, 08:00 UTCMay 21, 08:10 UTC10m
2026-05-21 ABL125 KIX → PUS May 21, 05:20 UTCMay 21, 05:55 UTC35m
2026-05-21 ABL126 PUS → KIX May 21, 03:00 UTCMay 21, 03:45 UTC45m
2026-05-20 ABL341 PUS → XIY May 20, 13:10 UTCMay 20, 21:20 UTC8h 10m
2026-05-20 ABL133 MYJ → PUS May 20, 09:35 UTCMay 20, 09:50 UTC15m
2026-05-20 ABL134 PUS → MYJ May 20, 08:15 UTCMay 20, 08:25 UTC10m
2026-05-20 ABL321 PUS → TAO May 20, 01:50 UTCMay 20, 06:00 UTC4h 11m
2026-05-19 ABL133 MYJ → PUS May 19, 09:40 UTCMay 19, 09:55 UTC15m
2026-05-19 ABL321 PUS → TAO May 19, 01:40 UTCMay 19, 06:10 UTC4h 30m
2026-05-18 ABL121 KIX → PUS May 18, 10:15 UTCMay 18, 10:45 UTC30m
2026-05-18 ABL122 PUS → KIX May 18, 07:55 UTCMay 18, 08:50 UTC55m
2026-05-18 ABL321 PUS → TAO May 18, 01:40 UTCMay 18, 05:50 UTC4h 10m
2026-05-17 ABL8021 GMP → CJU May 17, 06:55 UTCMay 17, 07:20 UTC25m
2026-05-17 ABL8028 CJU → GMP May 17, 05:10 UTCMay 17, 05:40 UTC30m
2026-05-16 ABL8025 GMP → CJU May 16, 22:30 UTCMay 16, 22:50 UTC20m
2026-05-16 ABL8824 PUS → GMP May 16, 10:16 UTCMay 16, 10:46 UTC30m
2026-05-16 ABL794 TPE → PUS May 16, 05:35 UTCMay 16, 06:01 UTC26m
2026-05-15 ABL781 PUS → CXR May 15, 12:20 UTCMay 16, 03:55 UTC15h 34m
2026-05-15 ABL8021 GMP → CJU May 15, 06:55 UTCMay 15, 07:20 UTC25m
2026-05-15 ABL8028 CJU → GMP May 15, 05:10 UTCMay 15, 05:45 UTC35m
2026-05-14 ABL321 PUS → TAO May 14, 01:45 UTCMay 14, 06:05 UTC4h 20m
2026-05-13 ABL8823 GMP → PUS May 13, 10:00 UTCMay 13, 10:35 UTC35m

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 HL8365 page for operator, model, and routing details .

Mode-S 71C365 frequently asked

What is Mode-S code 71C365?
71C365 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8365.
Where is Mode-S 71C365 registered?
Mode-S code 71C365 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 71C365 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C365, octal 34341545, decimal 7,455,589.
What flights does 71C365 operate?
Mode-S 71C365 has broadcast 20 distinct callsigns, including ABL8021, ABL8028, ABL8824, ABL8025, ABL321.