Apparatus

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sensors Mode-S transponder

71C366

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

Currently assigned to HL8366 · AIRBUS A-321neo

Hex
71C366
Octal
34341546
Decimal
7,455,590
Country
KR
Tail
HL8366
Type
A21N
Broadcasting now · callsign ABL8117 · 4,450 ft
Flights observed
356
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 20:15 UTC

Current position

71C366 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C366 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
ABL602 Air Busan 34 2026-07-24
ABL726 Air Busan 31 2026-07-25
ABL601 Air Busan 29 2026-07-26
ABL725 Air Busan 25 2026-07-25
ABL181 Air Busan 22 2026-07-26
ABL1635 Air Busan 15 2026-07-24
ABL182 Air Busan 14 2026-07-26
ABL8803 Air Busan 13 2026-07-21
ABL1645 Air Busan 13 2026-07-24
ABL8012 Air Busan 12 2026-07-21
ABL794 Air Busan 10 2026-07-20
ABL793 Air Busan 10 2026-07-20
ABL773 - 8 2026-07-23
ABL371 Air Busan 8 2026-07-25
ABL372 Air Busan 7 2026-07-25
ABL321 - 7 2026-06-24
ABL8135 Air Busan 6 2026-07-21
ABL792 - 6 2026-07-18
ABL337 - 6 2026-07-15
ABL791 - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ABL601 PUS → DPS Jul 26, 08:15 UTCJul 26, 20:15 UTC12h 0m
2026-07-26 ABL181 CTS → PUS Jul 26, 04:00 UTCJul 26, 06:15 UTC2h 15m
2026-07-26 ABL182 PUS → CTS Jul 26, 00:20 UTCJul 26, 02:30 UTC2h 10m
2026-07-25 ABL726 BKK → PUS Jul 25, 20:50 UTCJul 25, 21:20 UTC30m
2026-07-25 ABL726 BKK → PUS Jul 25, 16:10 UTCJul 25, 17:40 UTC1h 30m
2026-07-25 ABL725 PUS → BKK Jul 25, 09:20 UTCJul 25, 14:25 UTC5h 5m
2026-07-25 ABL372 DYG → PUS Jul 25, 07:10 UTCJul 25, 07:30 UTC20m
2026-07-25 ABL371 PUS → DYG Jul 25, 00:25 UTCJul 25, 00:50 UTC25m
2026-07-24 ABL602 DPS → PUS Jul 24, 22:40 UTCJul 24, 23:05 UTC25m
2026-07-24 ABL602 DPS → PUS Jul 24, 08:25 UTCJul 24, 21:55 UTC13h 30m
2026-07-24 ABL1635 FSZ → PUS Jul 24, 03:15 UTCJul 24, 04:40 UTC1h 25m
2026-07-24 ABL1645 PUS → FSZ Jul 24, 00:20 UTCJul 24, 01:35 UTC1h 15m
2026-07-23 ABL774 DAD → PUS Jul 23, 22:15 UTCJul 23, 22:30 UTC15m
2026-07-23 ABL773 - Jul 23, 13:55 UTCJul 23, 21:00 UTC7h 5m
2026-07-23 ABL773 - Jul 23, 12:20 UTCJul 23, 12:35 UTC15m
2026-07-23 ABL8823 GMP → PUS Jul 23, 10:05 UTCJul 23, 10:45 UTC40m
2026-07-23 ABL8820 PUS → GMP Jul 23, 08:15 UTCJul 23, 09:05 UTC50m
2026-07-23 ABL3175 PUS → YNJ Jul 23, 00:45 UTCJul 23, 06:45 UTC6h 0m
2026-07-22 ABL774 DAD → PUS Jul 22, 21:40 UTCJul 22, 22:05 UTC25m
2026-07-22 ABL773 - Jul 22, 12:25 UTCJul 22, 20:45 UTC8h 20m
2026-07-22 ABL1635 FSZ → PUS Jul 22, 03:10 UTCJul 22, 04:40 UTC1h 30m
2026-07-22 ABL1645 PUS → FSZ Jul 22, 00:40 UTCJul 22, 01:55 UTC1h 15m
2026-07-21 ABL8803 GMP → PUS Jul 21, 22:40 UTCJul 21, 23:25 UTC45m
2026-07-21 ABL8012 CJU → GMP Jul 21, 10:55 UTCJul 21, 11:35 UTC40m
2026-07-21 ABL8135 PUS → CJU Jul 21, 09:05 UTCJul 21, 09:25 UTC20m
2026-07-21 ABL372 DYG → PUS Jul 21, 06:45 UTCJul 21, 07:05 UTC20m
2026-07-21 ABL371 PUS → DYG Jul 21, 00:05 UTCJul 21, 00:30 UTC25m
2026-07-20 ABL726 BKK → PUS Jul 20, 20:45 UTCJul 20, 21:30 UTC45m
2026-07-20 ABL726 BKK → PUS Jul 20, 16:20 UTCJul 20, 19:45 UTC3h 25m
2026-07-20 ABL725 PUS → BKK Jul 20, 09:15 UTCJul 20, 14:20 UTC5h 5m
2026-07-20 ABL794 TPE → PUS Jul 20, 07:10 UTCJul 20, 07:35 UTC25m
2026-07-20 ABL794 TPE → PUS Jul 20, 05:45 UTCJul 20, 06:10 UTC25m
2026-07-20 ABL793 PUS → TPE Jul 20, 03:40 UTCJul 20, 04:05 UTC25m
2026-07-20 ABL793 PUS → TPE Jul 20, 02:10 UTCJul 20, 02:35 UTC25m
2026-07-19 ABL602 DPS → PUS Jul 19, 22:20 UTCJul 19, 22:40 UTC20m
2026-07-19 ABL601 PUS → DPS Jul 19, 08:10 UTCJul 19, 21:30 UTC13h 20m
2026-07-19 ABL181 - Jul 19, 03:50 UTCJul 19, 06:15 UTC2h 25m
2026-07-19 ABL182 - Jul 19, 00:10 UTCJul 19, 02:20 UTC2h 10m
2026-07-18 ABL614 PUS → PUS Jul 18, 12:30 UTCJul 18, 21:35 UTC9h 5m
2026-07-18 ABL792 - Jul 18, 10:20 UTCJul 18, 10:45 UTC25m
2026-07-18 ABL792 - Jul 18, 08:55 UTCJul 18, 09:10 UTC15m
2026-07-18 ABL791 - Jul 18, 07:15 UTCJul 18, 07:35 UTC20m
2026-07-18 ABL791 - Jul 18, 05:40 UTCJul 18, 06:05 UTC25m
2026-07-18 ABL111 - Jul 18, 02:25 UTCJul 18, 03:55 UTC1h 31m
2026-07-17 ABL112 PUS → NRT Jul 17, 23:00 UTCJul 18, 00:39 UTC1h 40m
2026-07-17 ABL382 - Jul 17, 20:55 UTCJul 17, 21:25 UTC30m
2026-07-17 ABL382 - Jul 17, 18:15 UTCJul 17, 19:45 UTC1h 30m
2026-07-17 ABL381 - Jul 17, 13:40 UTCJul 17, 16:24 UTC2h 45m
2026-07-17 ABL792 - Jul 17, 10:25 UTCJul 17, 10:50 UTC25m
2026-07-17 ABL792 - Jul 17, 08:59 UTCJul 17, 09:20 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 HL8366 page for operator, model, and routing details .

Mode-S 71C366 frequently asked

What is Mode-S code 71C366?
71C366 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8366.
Where is Mode-S 71C366 registered?
Mode-S code 71C366 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 71C366 broadcasting right now?
Yes. Mode-S 71C366 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C366, octal 34341546, decimal 7,455,590.
What flights does 71C366 operate?
Mode-S 71C366 has broadcast 20 distinct callsigns, including ABL602, ABL726, ABL601, ABL725, ABL181.