Apparatus

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sensors Mode-S transponder

71C572

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

Currently assigned to HL8572 · BOEING 787-10 Dreamliner

Hex
71C572
Octal
34342562
Decimal
7,456,114
Country
KR
Tail
HL8572
Type
B78X
No current signal · last broadcast Jul 26, 21:20 UTC
Flights observed
244
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:20 UTC

Last known position

Most recent position reported by Mode-S 71C572.

Country allocation

The ICAO 24-bit address 71C572 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
KAL072 Korean Air 12 2026-07-16
KAL053 - 12 2026-07-11
KAL023 - 12 2026-07-08
KAL071 - 11 2026-07-16
KAL054 - 10 2026-07-11
KAL076 Korean Air 9 2026-07-21
KAL075 Korean Air 9 2026-07-20
KAL024 - 9 2026-07-08
KAL969 Korean Air 8 2026-07-25
KAL447 Korean Air 8 2026-07-22
KAL041 Korean Air 8 2026-07-26
KAL970 Korean Air 7 2026-07-26
KAL448 Korean Air 7 2026-07-23
KAL434 Korean Air 7 2026-07-24
KAL402 - 7 2026-07-09
KAL042 Korean Air 7 2026-07-26
KAL401 - 6 2026-07-09
KAL2021 Korean Air 6 2026-07-22
KAL964 Korean Air 5 2026-06-05
KAL963 Korean Air 5 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL042 SEA → ICN Jul 26, 20:40 UTCJul 26, 21:20 UTC40m
2026-07-26 KAL041 ICN → SEA Jul 26, 08:20 UTCJul 26, 17:50 UTC9h 30m
2026-07-26 KAL970 PRG → ICN Jul 26, 03:15 UTCJul 26, 03:35 UTC20m
2026-07-25 KAL970 PRG → ICN Jul 25, 17:20 UTCJul 26, 02:25 UTC9h 5m
2026-07-25 KAL969 ICN → PRG Jul 25, 03:55 UTCJul 25, 14:30 UTC10h 35m
2026-07-25 KAL969 ICN → PRG Jul 25, 02:40 UTCJul 25, 03:05 UTC25m
2026-07-24 KAL434 DPS → ICN Jul 24, 09:20 UTCJul 24, 23:55 UTC14h 35m
2026-07-24 KAL704 NRT → ICN Jul 24, 05:15 UTCJul 24, 07:05 UTC1h 50m
2026-07-24 KAL703 ICN → NRT Jul 24, 01:45 UTCJul 24, 03:30 UTC1h 45m
2026-07-23 KAL888 PVG → ICN Jul 23, 02:50 UTCJul 23, 08:45 UTC5h 55m
2026-07-23 KAL448 HAN → ICN Jul 23, 00:10 UTCJul 23, 00:50 UTC40m
2026-07-22 KAL448 HAN → ICN Jul 22, 21:00 UTCJul 22, 21:10 UTC10m
2026-07-22 KAL447 ICN → HAN Jul 22, 18:05 UTCJul 22, 18:25 UTC20m
2026-07-22 KAL447 ICN → HAN Jul 22, 11:15 UTCJul 22, 16:05 UTC4h 50m
2026-07-22 KAL2021 ICN → TPE Jul 22, 03:25 UTCJul 22, 03:50 UTC25m
2026-07-22 KAL2021 ICN → TPE Jul 22, 01:50 UTCJul 22, 02:30 UTC40m
2026-07-21 KAL076 YVR → ICN Jul 21, 08:20 UTCJul 21, 18:45 UTC10h 25m
2026-07-20 KAL075 ICN → YVR Jul 20, 14:05 UTCJul 20, 23:45 UTC9h 40m
2026-07-19 KAL412 AKL → ICN Jul 19, 23:40 UTCJul 20, 10:45 UTC11h 5m
2026-07-19 KAL411 ICN → AKL Jul 19, 19:55 UTCJul 19, 20:35 UTC40m
2026-07-19 KAL411 ICN → AKL Jul 19, 09:20 UTCJul 19, 10:15 UTC55m
2026-07-19 KAL704 - Jul 19, 05:15 UTCJul 19, 07:10 UTC1h 55m
2026-07-19 KAL703 ICN → NRT Jul 19, 01:45 UTCJul 19, 03:40 UTC1h 55m
2026-07-18 KAL076 YVR → ICN Jul 18, 08:10 UTCJul 18, 18:25 UTC10h 15m
2026-07-17 KAL075 ICN → YVR Jul 17, 14:20 UTCJul 17, 23:50 UTC9h 30m
2026-07-16 KAL072 YVR → ICN Jul 16, 22:15 UTCJul 17, 08:20 UTC10h 5m
2026-07-16 KAL071 ICN → YVR Jul 16, 10:10 UTCJul 16, 19:55 UTC9h 45m
2026-07-16 KAL2022 TPE → ICN Jul 16, 05:45 UTCJul 16, 07:45 UTC2h 0m
2026-07-16 KAL2021 - Jul 16, 03:50 UTCJul 16, 04:15 UTC25m
2026-07-16 KAL2021 - Jul 16, 02:10 UTCJul 16, 02:50 UTC40m
2026-07-14 KAL072 - Jul 14, 22:35 UTCJul 15, 08:45 UTC10h 9m
2026-07-14 KAL071 ICN → YVR Jul 14, 10:30 UTCJul 14, 20:20 UTC9h 50m
2026-07-14 KAL2002 HKG → ICN Jul 14, 04:40 UTCJul 14, 07:50 UTC3h 10m
2026-07-13 KAL2001 ICN → HKG Jul 13, 23:20 UTCJul 14, 02:20 UTC3h 0m
2026-07-13 KAL076 YVR → ICN Jul 13, 08:15 UTCJul 13, 18:20 UTC10h 5m
2026-07-12 KAL075 ICN → YVR Jul 12, 14:05 UTCJul 12, 23:30 UTC9h 25m
2026-07-11 KAL054 - Jul 11, 23:25 UTCJul 12, 08:35 UTC9h 10m
2026-07-11 KAL053 - Jul 11, 12:30 UTCJul 11, 20:30 UTC8h 0m
2026-07-10 KAL054 - Jul 10, 23:35 UTCJul 11, 08:30 UTC8h 55m
2026-07-10 KAL053 - Jul 10, 12:30 UTCJul 10, 20:35 UTC8h 5m
2026-07-09 KAL402 SYD → ICN Jul 9, 22:40 UTCJul 10, 08:50 UTC10h 10m
2026-07-09 KAL401 ICN → SYD Jul 9, 11:00 UTCJul 9, 20:30 UTC9h 30m
2026-07-08 KAL024 SFO → ICN Jul 8, 20:50 UTCJul 9, 08:15 UTC11h 25m
2026-07-08 KAL023 ICN → SFO Jul 8, 07:25 UTCJul 8, 17:35 UTC10h 10m
2026-07-07 KAL076 YVR → ICN Jul 7, 08:30 UTCJul 7, 18:45 UTC10h 15m
2026-07-06 KAL075 - Jul 6, 14:30 UTCJul 6, 23:40 UTC9h 10m
2026-07-05 KAL412 - Jul 5, 23:15 UTCJul 6, 11:05 UTC11h 50m
2026-07-05 KAL411 - Jul 5, 09:25 UTCJul 5, 19:55 UTC10h 30m
2026-07-05 KAL918 ZRH → ICN Jul 5, 04:20 UTCJul 5, 04:40 UTC20m
2026-07-04 KAL918 ZRH → ICN Jul 4, 18:05 UTCJul 5, 03:25 UTC9h 20m

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 HL8572 page for operator, model, and routing details .

Mode-S 71C572 frequently asked

What is Mode-S code 71C572?
71C572 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8572.
Where is Mode-S 71C572 registered?
Mode-S code 71C572 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 71C572 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C572, octal 34342562, decimal 7,456,114.
What flights does 71C572 operate?
Mode-S 71C572 has broadcast 20 distinct callsigns, including KAL072, KAL053, KAL023, KAL071, KAL054.