Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C055

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

Currently assigned to HL8055 · AIRBUS A-320

Hex
71C055
Octal
34340125
Decimal
7,454,805
Country
KR
Tail
HL8055
Type
A320
No current signal · last broadcast 48m ago
Flights observed
171
Distinct callsigns
20
Country
KR
Last broadcast
48m ago

Last known position

Most recent position reported by Mode-S 71C055.

Country allocation

The ICAO 24-bit address 71C055 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
ABL8024 Air Busan 12 2026-05-27
ABL8827 Air Busan 10 2026-05-28
ABL8807 Air Busan 10 2026-05-30
ABL8802 Air Busan 10 2026-05-29
ABL8822 Air Busan 9 2026-05-28
ABL8821 Air Busan 9 2026-05-28
ABL8818 Air Busan 9 2026-05-27
ABL8816 Air Busan 9 2026-05-28
ABL8813 Air Busan 9 2026-05-29
ABL8806 Air Busan 9 2026-05-29
ABL8019 Air Busan 9 2026-05-27
ABL8817 Air Busan 8 2026-05-26
ABL8809 Air Busan 8 2026-05-26
ABL8808 Air Busan 8 2026-05-26
ABL8804 Air Busan 7 2026-05-26
ABL8025 Air Busan 6 2026-05-27
ABL8013 Air Busan 6 2026-05-19
ABL8803 Air Busan 2 2026-05-22
ABL773 Air Busan 2 2026-04-29
ABL322 Air Busan 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ABL8807 GMP → PUS May 30, 00:25 UTCMay 30, 00:50 UTC25m
2026-05-29 ABL8802 PUS → GMP May 29, 22:40 UTCMay 29, 23:20 UTC40m
2026-05-29 ABL8813 GMP → PUS May 29, 03:55 UTCMay 29, 04:20 UTC25m
2026-05-29 ABL8806 PUS → GMP May 29, 02:10 UTCMay 29, 02:40 UTC30m
2026-05-29 ABL8807 GMP → PUS May 29, 00:15 UTCMay 29, 00:40 UTC25m
2026-05-28 ABL8802 PUS → GMP May 28, 22:40 UTCMay 28, 23:10 UTC30m
2026-05-28 ABL8827 GMP → PUS May 28, 11:45 UTCMay 28, 12:15 UTC30m
2026-05-28 ABL8822 PUS → GMP May 28, 10:10 UTCMay 28, 10:45 UTC35m
2026-05-28 ABL8821 GMP → PUS May 28, 08:25 UTCMay 28, 08:50 UTC25m
2026-05-28 ABL8816 PUS → GMP May 28, 06:50 UTCMay 28, 07:25 UTC35m
2026-05-27 ABL8025 GMP → CJU May 27, 22:25 UTCMay 27, 22:50 UTC25m
2026-05-27 ABL8024 CJU → GMP May 27, 12:10 UTCMay 27, 12:40 UTC30m
2026-05-27 ABL8019 GMP → CJU May 27, 09:15 UTCMay 27, 09:40 UTC25m
2026-05-27 ABL8818 PUS → GMP May 27, 07:35 UTCMay 27, 08:10 UTC35m
2026-05-26 ABL8019 GMP → CJU May 26, 08:54 UTCMay 26, 09:19 UTC25m
2026-05-26 ABL8818 PUS → GMP May 26, 07:19 UTCMay 26, 07:55 UTC35m
2026-05-26 ABL8817 GMP → PUS May 26, 05:34 UTCMay 26, 06:04 UTC30m
2026-05-26 ABL8808 PUS → GMP May 26, 04:04 UTCMay 26, 04:39 UTC35m
2026-05-26 ABL8809 GMP → PUS May 26, 01:55 UTCMay 26, 02:24 UTC30m
2026-05-26 ABL8804 PUS → GMP May 26, 00:04 UTCMay 26, 00:39 UTC35m
2026-05-25 ABL8019 GMP → CJU May 25, 09:05 UTCMay 25, 09:30 UTC25m
2026-05-25 ABL8818 PUS → GMP May 25, 07:40 UTCMay 25, 08:10 UTC30m
2026-05-25 ABL8817 GMP → PUS May 25, 05:40 UTCMay 25, 06:10 UTC30m
2026-05-25 ABL8808 PUS → GMP May 25, 03:55 UTCMay 25, 04:35 UTC40m
2026-05-25 ABL8809 GMP → PUS May 25, 01:55 UTCMay 25, 02:20 UTC25m
2026-05-23 ABL337 PUS → YNJ May 23, 00:55 UTCMay 23, 06:35 UTC5h 40m
2026-05-22 ABL8803 GMP → PUS May 22, 22:45 UTCMay 22, 23:10 UTC25m
2026-05-22 ABL8024 CJU → GMP May 22, 11:35 UTCMay 22, 12:00 UTC25m
2026-05-22 ABL8019 GMP → CJU May 22, 09:10 UTCMay 22, 09:40 UTC30m
2026-05-22 ABL8818 PUS → GMP May 22, 07:35 UTCMay 22, 08:10 UTC35m
2026-05-22 ABL8817 GMP → PUS May 22, 05:50 UTCMay 22, 06:20 UTC30m
2026-05-22 ABL8808 PUS → GMP May 22, 04:05 UTCMay 22, 04:40 UTC35m
2026-05-22 ABL8809 GMP → PUS May 22, 01:55 UTCMay 22, 02:20 UTC25m
2026-05-22 ABL8804 PUS → GMP May 22, 00:10 UTCMay 22, 00:45 UTC35m
2026-05-21 ABL144 PUS → FUK May 21, 09:35 UTCMay 21, 09:45 UTC10m
2026-05-21 ABL146 PUS → FUK May 21, 05:50 UTCMay 21, 06:00 UTC10m
2026-05-21 ABL8803 GMP → PUS May 21, 00:05 UTCMay 21, 00:35 UTC30m
2026-05-20 ABL8824 PUS → GMP May 20, 10:20 UTCMay 20, 10:55 UTC35m
2026-05-19 ABL8013 GMP → CJU May 19, 22:40 UTCMay 19, 23:05 UTC25m
2026-05-19 ABL8024 CJU → GMP May 19, 11:55 UTCMay 19, 12:25 UTC30m
2026-05-19 ABL8813 GMP → PUS May 19, 03:55 UTCMay 19, 04:25 UTC30m
2026-05-19 ABL8806 PUS → GMP May 19, 02:15 UTCMay 19, 02:55 UTC40m
2026-05-19 ABL8807 GMP → PUS May 19, 00:20 UTCMay 19, 00:45 UTC25m
2026-05-18 ABL8802 PUS → GMP May 18, 22:40 UTCMay 18, 23:15 UTC35m
2026-05-16 ABL1615 TOY → PUS May 16, 08:20 UTCMay 16, 08:55 UTC35m
2026-05-16 ABL111 NRT → PUS May 16, 02:40 UTCMay 16, 06:50 UTC4h 11m
2026-05-15 ABL112 PUS → NRT May 15, 23:40 UTCMay 16, 01:10 UTC1h 30m
2026-05-15 ABL411 PUS → UBN May 15, 13:20 UTCMay 15, 20:35 UTC7h 14m
2026-05-15 ABL8813 GMP → PUS May 15, 03:55 UTCMay 15, 04:25 UTC30m
2026-05-15 ABL8806 PUS → GMP May 15, 02:10 UTCMay 15, 02:40 UTC30m

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 HL8055 page for operator, model, and routing details .

Mode-S 71C055 frequently asked

What is Mode-S code 71C055?
71C055 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8055.
Where is Mode-S 71C055 registered?
Mode-S code 71C055 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 71C055 broadcasting right now?
No active broadcast right now. Last signal was 48m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C055, octal 34340125, decimal 7,454,805.
What flights does 71C055 operate?
Mode-S 71C055 has broadcast 20 distinct callsigns, including ABL8024, ABL8827, ABL8807, ABL8802, ABL8822.