Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 Jul 26, 11:20 UTC
Flights observed
413
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 11:20 UTC

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 31 2026-07-26
ABL8028 Air Busan 30 2026-07-26
ABL8824 Air Busan 20 2026-07-26
ABL8132 Air Busan 17 2026-07-26
ABL8109 Air Busan 17 2026-07-26
ABL8025 Air Busan 17 2026-07-25
ABL8102 Air Busan 15 2026-07-26
ABL337 - 12 2026-07-14
ABL8105 Air Busan 11 2026-07-24
ABL712 Air Busan 10 2026-07-23
ABL126 - 10 2026-06-30
ABL125 - 10 2026-06-30
ABL8811 - 9 2026-07-09
ABL8040 - 8 2026-07-09
ABL321 Air Busan 8 2026-06-04
ABL121 Air Busan 8 2026-06-12
ABL133 Air Busan 7 2026-06-04
ABL8803 - 6 2026-07-17
ABL794 - 6 2026-07-08
ABL111 Air Busan 6 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ABL8824 PUS → GMP Jul 26, 10:35 UTCJul 26, 11:10 UTC35m
2026-07-26 ABL8132 CJU → PUS Jul 26, 09:10 UTCJul 26, 09:30 UTC20m
2026-07-26 ABL8021 GMP → CJU Jul 26, 06:45 UTCJul 26, 07:20 UTC35m
2026-07-26 ABL8028 CJU → GMP Jul 26, 05:00 UTCJul 26, 05:40 UTC40m
2026-07-26 ABL8109 PUS → CJU Jul 26, 02:45 UTCJul 26, 03:05 UTC20m
2026-07-26 ABL8102 CJU → PUS Jul 26, 00:55 UTCJul 26, 01:15 UTC20m
2026-07-25 ABL8025 GMP → CJU Jul 25, 22:25 UTCJul 25, 23:00 UTC35m
2026-07-25 ABL8824 PUS → GMP Jul 25, 10:05 UTCJul 25, 10:55 UTC50m
2026-07-25 ABL8132 CJU → PUS Jul 25, 08:50 UTCJul 25, 09:10 UTC20m
2026-07-25 ABL8021 GMP → CJU Jul 25, 06:50 UTCJul 25, 07:25 UTC35m
2026-07-25 ABL8028 CJU → GMP Jul 25, 04:55 UTCJul 25, 05:40 UTC45m
2026-07-25 ABL8109 PUS → CJU Jul 25, 02:55 UTCJul 25, 03:15 UTC20m
2026-07-25 ABL8102 CJU → PUS Jul 25, 01:30 UTCJul 25, 01:50 UTC20m
2026-07-24 ABL8105 PUS → CJU Jul 24, 23:25 UTCJul 24, 23:40 UTC15m
2026-07-24 ABL382 MFM → PUS Jul 24, 20:50 UTCJul 24, 21:30 UTC40m
2026-07-24 ABL382 MFM → PUS Jul 24, 18:20 UTCJul 24, 19:45 UTC1h 25m
2026-07-24 ABL381 PUS → MFM Jul 24, 14:40 UTCJul 24, 15:55 UTC1h 15m
2026-07-24 ABL381 PUS → MFM Jul 24, 13:10 UTCJul 24, 13:25 UTC15m
2026-07-24 ABL1315 TAK → PUS Jul 24, 10:40 UTCJul 24, 11:45 UTC1h 5m
2026-07-24 ABL1325 PUS → TAK Jul 24, 08:35 UTCJul 24, 09:30 UTC55m
2026-07-24 ABL181 CTS → PUS Jul 24, 04:00 UTCJul 24, 06:15 UTC2h 15m
2026-07-24 ABL182 PUS → CTS Jul 24, 00:30 UTCJul 24, 02:35 UTC2h 5m
2026-07-23 ABL712 CEB → PUS Jul 23, 21:45 UTCJul 23, 22:10 UTC25m
2026-07-23 ABL712 CEB → PUS Jul 23, 13:45 UTCJul 23, 20:30 UTC6h 45m
2026-07-23 ABL711 PUS → CEB Jul 23, 12:35 UTCJul 23, 12:55 UTC20m
2026-07-23 ABL123 KIX → PUS Jul 23, 02:15 UTCJul 23, 03:15 UTC1h 0m
2026-07-22 ABL124 PUS → KIX Jul 22, 23:55 UTCJul 23, 01:00 UTC1h 5m
2026-07-22 ABL342 PUS → PUS Jul 22, 13:15 UTCJul 22, 21:25 UTC8h 10m
2026-07-22 ABL792 TPE → PUS Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-22 ABL111 NRT → PUS Jul 22, 02:15 UTCJul 22, 04:00 UTC1h 45m
2026-07-21 ABL112 PUS → NRT Jul 21, 23:20 UTCJul 22, 00:55 UTC1h 35m
2026-07-21 ABL712 - Jul 21, 20:55 UTCJul 21, 21:35 UTC40m
2026-07-21 ABL712 - Jul 21, 12:45 UTCJul 21, 20:15 UTC7h 30m
2026-07-21 ABL711 PUS → CEB Jul 21, 11:30 UTCJul 21, 11:50 UTC20m
2026-07-21 ABL8132 CJU → PUS Jul 21, 09:35 UTCJul 21, 09:55 UTC20m
2026-07-21 ABL8021 GMP → CJU Jul 21, 07:00 UTCJul 21, 07:45 UTC45m
2026-07-21 ABL8028 CJU → GMP Jul 21, 04:55 UTCJul 21, 05:40 UTC45m
2026-07-21 ABL8109 PUS → CJU Jul 21, 03:00 UTCJul 21, 03:15 UTC15m
2026-07-21 ABL8102 CJU → PUS Jul 21, 01:10 UTCJul 21, 01:35 UTC25m
2026-07-20 ABL8025 GMP → CJU Jul 20, 22:25 UTCJul 20, 23:00 UTC35m
2026-07-20 ABL8826 PUS → GMP Jul 20, 11:25 UTCJul 20, 12:05 UTC40m
2026-07-20 ABL8132 CJU → PUS Jul 20, 09:15 UTCJul 20, 09:30 UTC15m
2026-07-20 ABL8021 GMP → CJU Jul 20, 06:35 UTCJul 20, 07:15 UTC40m
2026-07-20 ABL8028 CJU → GMP Jul 20, 04:45 UTCJul 20, 05:30 UTC45m
2026-07-20 ABL8109 PUS → CJU Jul 20, 02:55 UTCJul 20, 03:15 UTC20m
2026-07-20 ABL8102 CJU → PUS Jul 20, 01:10 UTCJul 20, 01:35 UTC25m
2026-07-19 ABL8105 - Jul 19, 22:40 UTCJul 19, 23:00 UTC20m
2026-07-19 ABL143 FUK → PUS Jul 19, 11:05 UTCJul 19, 11:35 UTC30m
2026-07-19 ABL144 - Jul 19, 09:10 UTCJul 19, 09:40 UTC30m
2026-07-19 ABL145 FUK → PUS Jul 19, 07:15 UTCJul 19, 07:50 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 Jul 26, 11:20 UTC.
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, ABL8132, ABL8109.