Apparatus

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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
Broadcasting now · callsign ABL8806 · 7,775 ft
Flights observed
441
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Current position

71C055 is currently broadcasting. Map zoomed to live position.

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 - 20 2026-07-08
ABL8813 - 18 2026-07-01
ABL8806 - 18 2026-07-01
ABL8827 - 17 2026-07-09
ABL8822 - 16 2026-07-09
ABL8821 - 16 2026-07-09
ABL8816 - 16 2026-07-09
ABL8807 - 16 2026-07-14
ABL8802 - 16 2026-07-13
ABL8139 - 16 2026-07-13
ABL8113 - 16 2026-07-13
ABL8112 - 16 2026-07-13
ABL8818 - 15 2026-06-22
ABL8809 - 15 2026-06-27
ABL8019 - 15 2026-06-22
ABL8804 - 14 2026-06-27
ABL8138 - 14 2026-07-13
ABL8182 - 13 2026-07-13
ABL8817 - 12 2026-06-14
ABL8808 - 12 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ABL8807 GMP → PUS Jul 14, 00:25 UTCJul 14, 01:05 UTC40m
2026-07-13 ABL8802 PUS → GMP Jul 13, 22:30 UTCJul 13, 23:10 UTC40m
2026-07-13 ABL8138 - Jul 13, 11:50 UTCJul 13, 12:15 UTC25m
2026-07-13 ABL8139 - Jul 13, 10:00 UTCJul 13, 10:15 UTC15m
2026-07-13 ABL8112 - Jul 13, 08:45 UTCJul 13, 09:00 UTC15m
2026-07-13 ABL8113 - Jul 13, 06:30 UTCJul 13, 07:10 UTC40m
2026-07-13 ABL8182 - Jul 13, 05:01 UTCJul 13, 05:20 UTC20m
2026-07-13 ABL8183 - Jul 13, 03:10 UTCJul 13, 03:30 UTC20m
2026-07-13 ABL8136 - Jul 13, 01:50 UTCJul 13, 02:10 UTC20m
2026-07-12 ABL8133 - Jul 12, 23:35 UTCJul 12, 23:50 UTC15m
2026-07-12 ABL8138 - Jul 12, 11:50 UTCJul 12, 12:10 UTC20m
2026-07-12 ABL8139 - Jul 12, 10:01 UTCJul 12, 10:20 UTC20m
2026-07-12 ABL8112 - Jul 12, 08:40 UTCJul 12, 08:55 UTC15m
2026-07-12 ABL8113 - Jul 12, 06:25 UTCJul 12, 06:40 UTC15m
2026-07-12 ABL8182 - Jul 12, 05:01 UTCJul 12, 05:20 UTC20m
2026-07-12 ABL8183 - Jul 12, 02:50 UTCJul 12, 03:10 UTC20m
2026-07-11 ABL8138 - Jul 11, 12:55 UTCJul 11, 13:20 UTC25m
2026-07-11 ABL8139 - Jul 11, 10:25 UTCJul 11, 10:35 UTC10m
2026-07-11 ABL8112 - Jul 11, 09:05 UTCJul 11, 09:25 UTC20m
2026-07-11 ABL8113 - Jul 11, 06:20 UTCJul 11, 06:30 UTC10m
2026-07-11 ABL141 - Jul 11, 03:01 UTCJul 11, 03:30 UTC30m
2026-07-11 ABL142 - Jul 11, 01:20 UTCJul 11, 01:40 UTC20m
2026-07-10 ABL8138 - Jul 10, 11:25 UTCJul 10, 11:40 UTC15m
2026-07-10 ABL8139 - Jul 10, 09:35 UTCJul 10, 09:50 UTC15m
2026-07-10 ABL8112 - Jul 10, 08:05 UTCJul 10, 08:25 UTC20m
2026-07-10 ABL8113 - Jul 10, 06:15 UTCJul 10, 06:35 UTC20m
2026-07-10 ABL8182 - Jul 10, 04:35 UTCJul 10, 05:05 UTC30m
2026-07-10 ABL8183 - Jul 10, 02:40 UTCJul 10, 03:00 UTC20m
2026-07-10 ABL8136 - Jul 10, 01:15 UTCJul 10, 01:30 UTC15m
2026-07-09 ABL8133 - Jul 9, 23:10 UTCJul 9, 23:30 UTC20m
2026-07-09 ABL8827 GMP → PUS Jul 9, 11:55 UTCJul 9, 12:35 UTC40m
2026-07-09 ABL8822 PUS → GMP Jul 9, 10:15 UTCJul 9, 10:55 UTC40m
2026-07-09 ABL8821 GMP → PUS Jul 9, 08:35 UTCJul 9, 09:20 UTC45m
2026-07-09 ABL8816 PUS → GMP Jul 9, 06:50 UTCJul 9, 07:35 UTC45m
2026-07-09 ABL8108 - Jul 9, 04:55 UTCJul 9, 05:25 UTC30m
2026-07-09 ABL8301 - Jul 9, 02:50 UTCJul 9, 03:05 UTC15m
2026-07-09 ABL8300 - Jul 9, 01:10 UTCJul 9, 01:30 UTC20m
2026-07-08 ABL8025 - Jul 8, 22:25 UTCJul 8, 23:10 UTC45m
2026-07-08 ABL8024 - Jul 8, 12:05 UTCJul 8, 12:45 UTC40m
2026-07-08 ABL8139 - Jul 8, 09:35 UTCJul 8, 09:50 UTC15m
2026-07-08 ABL8112 - Jul 8, 08:25 UTCJul 8, 08:40 UTC15m
2026-07-08 ABL8113 - Jul 8, 06:30 UTCJul 8, 06:50 UTC20m
2026-07-08 ABL8182 - Jul 8, 04:50 UTCJul 8, 05:10 UTC20m
2026-07-08 ABL8183 - Jul 8, 02:55 UTCJul 8, 03:15 UTC20m
2026-07-08 ABL8136 - Jul 8, 01:30 UTCJul 8, 01:50 UTC20m
2026-07-07 ABL8133 - Jul 7, 23:10 UTCJul 7, 23:25 UTC15m
2026-07-07 ABL8138 - Jul 7, 11:40 UTCJul 7, 11:55 UTC15m
2026-07-07 ABL8139 - Jul 7, 09:30 UTCJul 7, 09:45 UTC15m
2026-07-07 ABL8112 - Jul 7, 08:15 UTCJul 7, 08:35 UTC20m
2026-07-07 ABL8113 - Jul 7, 06:30 UTCJul 7, 06:45 UTC15m

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?
Yes. Mode-S 71C055 is currently airborne.
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, ABL8813, ABL8806, ABL8827, ABL8822.