Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C279

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

Currently assigned to HL8279 · AIRBUS A-321

Hex
71C279
Octal
34341171
Decimal
7,455,353
Country
KR
Tail
HL8279
Type
A321
No current signal · last broadcast Jul 26, 12:45 UTC
Flights observed
639
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 12:45 UTC

Last known position

Most recent position reported by Mode-S 71C279.

Country allocation

The ICAO 24-bit address 71C279 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
AAR8733 Asiana Airlines 27 2026-07-23
AAR8734 Asiana Airlines 25 2026-07-23
AAR8994 Asiana Airlines 23 2026-07-24
AAR8147 Asiana Airlines 22 2026-07-24
AAR8145 Asiana Airlines 22 2026-07-24
AAR8935 Asiana Airlines 21 2026-07-24
AAR8144 Asiana Airlines 19 2026-07-24
AAR8146 Asiana Airlines 18 2026-07-24
AAR8985 - 15 2026-07-14
AAR8936 - 15 2026-07-14
AAR8707 - 15 2026-07-14
AAR8995 - 14 2026-07-06
AAR8927 - 14 2026-07-16
AAR8920 - 14 2026-07-17
AAR8233 - 14 2026-07-04
AAR8986 - 13 2026-07-06
AAR8948 Asiana Airlines 13 2026-07-25
AAR8921 - 13 2026-07-13
AAR8736 Asiana Airlines 13 2026-07-25
AAR8735 Asiana Airlines 13 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAR8239 CJJ → CJU Jul 26, 12:20 UTCJul 26, 12:45 UTC25m
2026-07-26 AAR8238 CJU → CJJ Jul 26, 10:40 UTCJul 26, 11:10 UTC30m
2026-07-26 AAR8235 CJJ → CJU Jul 26, 08:30 UTCJul 26, 08:55 UTC25m
2026-07-26 AAR8234 CJU → CJJ Jul 26, 06:55 UTCJul 26, 07:25 UTC30m
2026-07-26 AAR8953 GMP → CJU Jul 26, 04:40 UTCJul 26, 05:10 UTC30m
2026-07-26 AAR8704 KWJ → GMP Jul 26, 02:10 UTCJul 26, 02:55 UTC45m
2026-07-26 AAR8703 GMP → KWJ Jul 26, 00:45 UTCJul 26, 01:10 UTC25m
2026-07-25 AAR8904 CJU → GMP Jul 25, 22:30 UTCJul 25, 23:10 UTC40m
2026-07-25 AAR8993 GMP → CJU Jul 25, 12:25 UTCJul 25, 13:00 UTC35m
2026-07-25 AAR8736 RSU → GMP Jul 25, 09:40 UTCJul 25, 10:20 UTC40m
2026-07-25 AAR8735 GMP → RSU Jul 25, 08:00 UTCJul 25, 08:25 UTC25m
2026-07-25 AAR8948 CJU → GMP Jul 25, 06:00 UTCJul 25, 06:45 UTC45m
2026-07-25 AAR8143 KWJ → CJU Jul 25, 04:15 UTCJul 25, 04:30 UTC15m
2026-07-25 AAR8142 CJU → KWJ Jul 25, 03:10 UTCJul 25, 03:25 UTC15m
2026-07-25 AAR8141 KWJ → CJU Jul 25, 01:25 UTCJul 25, 01:40 UTC15m
2026-07-25 AAR8140 CJU → KWJ Jul 25, 00:15 UTCJul 25, 00:25 UTC10m
2026-07-24 AAR8913 GMP → CJU Jul 24, 22:00 UTCJul 24, 22:35 UTC35m
2026-07-24 AAR8994 CJU → GMP Jul 24, 12:25 UTCJul 24, 13:15 UTC50m
2026-07-24 AAR8147 KWJ → CJU Jul 24, 09:20 UTCJul 24, 09:35 UTC15m
2026-07-24 AAR8146 CJU → KWJ Jul 24, 08:15 UTCJul 24, 08:30 UTC15m
2026-07-24 AAR8145 KWJ → CJU Jul 24, 05:55 UTCJul 24, 06:05 UTC10m
2026-07-24 AAR8144 CJU → KWJ Jul 24, 04:40 UTCJul 24, 04:55 UTC15m
2026-07-24 AAR8935 GMP → CJU Jul 24, 02:00 UTCJul 24, 02:35 UTC35m
2026-07-23 AAR8734 RSU → GMP Jul 23, 23:50 UTCJul 24, 00:35 UTC45m
2026-07-23 AAR8733 GMP → RSU Jul 23, 22:15 UTCJul 23, 22:50 UTC35m
2026-07-23 AAR801A ICN → GMP Jul 23, 20:50 UTCJul 23, 21:05 UTC15m
2026-07-18 AAR802A GMP → ICN Jul 18, 13:15 UTCJul 18, 13:30 UTC15m
2026-07-18 AAR3365 - Jul 18, 11:20 UTCJul 18, 11:45 UTC25m
2026-07-18 AAR3355 - Jul 18, 06:20 UTCJul 18, 06:55 UTC35m
2026-07-18 AAR1135 KIX → GMP Jul 18, 02:29 UTCJul 18, 03:50 UTC1h 21m
2026-07-17 AAR1145 GMP → KIX Jul 17, 23:30 UTCJul 18, 00:55 UTC1h 25m
2026-07-17 AAR8996 CJU → GMP Jul 17, 12:19 UTCJul 17, 13:00 UTC40m
2026-07-17 AAR8127 - Jul 17, 10:20 UTCJul 17, 10:35 UTC15m
2026-07-17 AAR8126 - Jul 17, 08:54 UTCJul 17, 09:15 UTC20m
2026-07-17 AAR8949 - Jul 17, 03:39 UTCJul 17, 04:10 UTC30m
2026-07-17 AAR8920 - Jul 17, 01:49 UTCJul 17, 02:25 UTC35m
2026-07-16 AAR8927 - Jul 16, 23:44 UTCJul 17, 00:20 UTC35m
2026-07-16 AAR8902 - Jul 16, 22:00 UTCJul 16, 22:35 UTC35m
2026-07-16 AAR8239 - Jul 16, 12:25 UTCJul 16, 12:49 UTC25m
2026-07-16 AAR8238 - Jul 16, 10:35 UTCJul 16, 11:05 UTC30m
2026-07-16 AAR8235 - Jul 16, 08:45 UTCJul 16, 09:05 UTC20m
2026-07-16 AAR8234 - Jul 16, 06:40 UTCJul 16, 07:10 UTC30m
2026-07-16 AAR8953 - Jul 16, 04:35 UTCJul 16, 05:15 UTC40m
2026-07-16 AAR8704 - Jul 16, 02:15 UTCJul 16, 02:55 UTC40m
2026-07-16 AAR8703 - Jul 16, 00:40 UTCJul 16, 01:20 UTC40m
2026-07-15 AAR8904 - Jul 15, 22:30 UTCJul 15, 23:15 UTC45m
2026-07-15 AAR8993 - Jul 15, 12:00 UTCJul 15, 12:30 UTC30m
2026-07-15 AAR8736 - Jul 15, 09:30 UTCJul 15, 10:00 UTC30m
2026-07-15 AAR8735 - Jul 15, 07:50 UTCJul 15, 08:25 UTC35m
2026-07-15 AAR8948 - Jul 15, 06:15 UTCJul 15, 06:50 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 HL8279 page for operator, model, and routing details .

Mode-S 71C279 frequently asked

What is Mode-S code 71C279?
71C279 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8279.
Where is Mode-S 71C279 registered?
Mode-S code 71C279 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 71C279 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C279, octal 34341171, decimal 7,455,353.
What flights does 71C279 operate?
Mode-S 71C279 has broadcast 20 distinct callsigns, including AAR8733, AAR8734, AAR8994, AAR8147, AAR8145.