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sensors Mode-S transponder

71C071

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

Currently assigned to HL8071 · AIRBUS A-321

Hex
71C071
Octal
34340161
Decimal
7,454,833
Country
KR
Tail
HL8071
Type
A321
Broadcasting now · callsign AAR8921 · 15,575 ft
Flights observed
399
Distinct callsigns
20
Country
KR
Last broadcast
12m ago

Current position

71C071 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C071 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
AAR339 Asiana Airlines 13 2026-05-29
AAR151 Asiana Airlines 13 2026-06-10
AAR8921 - 12 2026-07-14
AAR8900 - 11 2026-07-14
AAR340 Asiana Airlines 11 2026-05-29
AAR8985 - 10 2026-07-11
AAR8936 - 10 2026-07-11
AAR8708 - 10 2026-07-11
AAR8707 - 10 2026-07-11
AAR351 Asiana Airlines 10 2026-06-08
AAR152 Asiana Airlines 9 2026-06-10
AAR352 Asiana Airlines 7 2026-06-08
AAR8993 - 6 2026-07-13
AAR8949 - 6 2026-07-12
AAR8948 - 6 2026-07-13
AAR8927 - 6 2026-07-12
AAR8920 - 6 2026-07-12
AAR8902 - 6 2026-07-12
AAR8736 - 6 2026-07-13
AAR8735 - 6 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAR8921 - Jul 14, 23:50 UTCJul 15, 00:15 UTC25m
2026-07-14 AAR8900 - Jul 14, 21:50 UTCJul 14, 22:25 UTC35m
2026-07-14 AAR8995 - Jul 14, 12:35 UTCJul 14, 13:10 UTC35m
2026-07-14 AAR8986 - Jul 14, 11:00 UTCJul 14, 11:35 UTC35m
2026-07-14 AAR8981 - Jul 14, 09:00 UTCJul 14, 09:35 UTC35m
2026-07-14 AAR8956 - Jul 14, 07:25 UTCJul 14, 08:00 UTC35m
2026-07-14 AAR8233 - Jul 14, 04:40 UTCJul 14, 05:10 UTC30m
2026-07-14 AAR8232 - Jul 14, 03:10 UTCJul 14, 03:40 UTC30m
2026-07-14 AAR8123 - Jul 14, 00:55 UTCJul 14, 01:15 UTC20m
2026-07-13 AAR8122 - Jul 13, 23:25 UTCJul 13, 23:45 UTC20m
2026-07-13 AAR8993 - Jul 13, 12:05 UTCJul 13, 12:40 UTC35m
2026-07-13 AAR8736 - Jul 13, 10:25 UTCJul 13, 11:05 UTC40m
2026-07-13 AAR8735 - Jul 13, 08:55 UTCJul 13, 09:20 UTC25m
2026-07-13 AAR8948 - Jul 13, 07:01 UTCJul 13, 07:40 UTC40m
2026-07-13 AAR8143 - Jul 13, 04:55 UTCJul 13, 05:05 UTC10m
2026-07-13 AAR8142 - Jul 13, 03:40 UTCJul 13, 04:00 UTC20m
2026-07-13 AAR8413 - Jul 13, 01:20 UTCJul 13, 01:55 UTC35m
2026-07-12 AAR8913 - Jul 12, 23:30 UTCJul 13, 00:15 UTC45m
2026-07-12 AAR8913 - Jul 12, 21:55 UTCJul 12, 22:30 UTC35m
2026-07-12 AAR8994 - Jul 12, 13:25 UTCJul 12, 13:55 UTC30m
2026-07-12 AAR8147 - Jul 12, 11:40 UTCJul 12, 11:55 UTC15m
2026-07-12 AAR8146 - Jul 12, 10:40 UTCJul 12, 10:50 UTC10m
2026-07-12 AAR8949 - Jul 12, 08:10 UTCJul 12, 08:50 UTC40m
2026-07-12 AAR8920 - Jul 12, 06:15 UTCJul 12, 06:55 UTC40m
2026-07-12 AAR8927 - Jul 12, 03:55 UTCJul 12, 04:30 UTC35m
2026-07-12 AAR8902 - Jul 12, 01:30 UTCJul 12, 02:15 UTC45m
2026-07-11 AAR8985 - Jul 11, 10:40 UTCJul 11, 11:20 UTC40m
2026-07-11 AAR8708 - Jul 11, 08:20 UTCJul 11, 08:50 UTC30m
2026-07-11 AAR8707 - Jul 11, 06:45 UTCJul 11, 07:15 UTC30m
2026-07-11 AAR8936 - Jul 11, 05:20 UTCJul 11, 05:55 UTC35m
2026-07-10 AAR8921 - Jul 10, 23:45 UTCJul 11, 00:20 UTC35m
2026-07-10 AAR8900 - Jul 10, 21:50 UTCJul 10, 22:30 UTC40m
2026-07-10 AAR8985 - Jul 10, 10:20 UTCJul 10, 10:55 UTC35m
2026-07-10 AAR8708 - Jul 10, 08:20 UTCJul 10, 09:05 UTC45m
2026-07-10 AAR8707 - Jul 10, 06:55 UTCJul 10, 07:20 UTC25m
2026-07-10 AAR8936 - Jul 10, 05:10 UTCJul 10, 05:55 UTC45m
2026-07-09 AAR8921 - Jul 9, 23:35 UTCJul 10, 00:15 UTC40m
2026-07-09 AAR8900 - Jul 9, 21:45 UTCJul 9, 22:25 UTC40m
2026-07-09 AAR8985 - Jul 9, 10:25 UTCJul 9, 11:00 UTC35m
2026-07-09 AAR8708 KWJ → GMP Jul 9, 08:20 UTCJul 9, 09:05 UTC45m
2026-07-09 AAR8707 - Jul 9, 06:55 UTCJul 9, 07:20 UTC25m
2026-07-09 AAR8936 - Jul 9, 05:05 UTCJul 9, 05:50 UTC45m
2026-07-08 AAR8921 - Jul 8, 23:50 UTCJul 9, 00:30 UTC40m
2026-07-08 AAR8900 - Jul 8, 21:50 UTCJul 8, 22:35 UTC45m
2026-07-08 AAR8985 - Jul 8, 10:25 UTCJul 8, 11:00 UTC35m
2026-07-08 AAR8708 - Jul 8, 08:25 UTCJul 8, 09:05 UTC40m
2026-07-08 AAR8707 - Jul 8, 06:55 UTCJul 8, 07:35 UTC40m
2026-07-08 AAR8936 - Jul 8, 05:10 UTCJul 8, 05:45 UTC35m
2026-07-07 AAR8921 GMP → CJU Jul 7, 23:50 UTCJul 8, 00:25 UTC35m
2026-07-07 AAR8900 - Jul 7, 21:50 UTCJul 7, 22:45 UTC55m

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 HL8071 page for operator, model, and routing details .

Mode-S 71C071 frequently asked

What is Mode-S code 71C071?
71C071 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8071.
Where is Mode-S 71C071 registered?
Mode-S code 71C071 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 71C071 broadcasting right now?
Yes. Mode-S 71C071 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C071, octal 34340161, decimal 7,454,833.
What flights does 71C071 operate?
Mode-S 71C071 has broadcast 20 distinct callsigns, including AAR339, AAR151, AAR8921, AAR8900, AAR340.