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 1h ago
Flights observed
211
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

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
KAL053 - 12 2026-07-11
KAL023 - 12 2026-07-08
KAL072 Korean Air 10 2026-05-22
KAL054 - 10 2026-07-11
KAL071 Korean Air 9 2026-05-22
KAL024 - 9 2026-07-08
KAL402 - 7 2026-07-09
KAL076 - 7 2026-07-13
KAL075 - 7 2026-07-12
KAL041 - 7 2026-06-27
KAL969 - 6 2026-06-20
KAL447 Korean Air 6 2026-06-02
KAL434 - 6 2026-06-22
KAL401 - 6 2026-07-09
KAL042 - 6 2026-06-27
KAL970 - 5 2026-06-21
KAL964 Korean Air 5 2026-06-05
KAL963 Korean Air 5 2026-06-04
KAL724 - 5 2026-06-30
KAL723 - 5 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-04 KAL917 - Jul 4, 03:45 UTCJul 4, 15:15 UTC11h 30m
2026-07-04 KAL917 - Jul 4, 02:40 UTCJul 4, 02:55 UTC15m
2026-07-03 KAL433 ICN → ICN Jul 3, 09:30 UTCJul 3, 23:50 UTC14h 20m
2026-06-30 KAL724 KIX → ICN Jun 30, 04:10 UTCJun 30, 05:30 UTC1h 20m
2026-06-30 KAL723 ICN → KIX Jun 30, 01:00 UTCJun 30, 02:15 UTC1h 16m
2026-06-28 KAL402 SYD → ICN Jun 28, 22:39 UTCJun 29, 08:35 UTC9h 55m
2026-06-28 KAL401 ICN → SYD Jun 28, 10:39 UTCJun 28, 20:19 UTC9h 40m
2026-06-27 KAL042 SEA → ICN Jun 27, 21:19 UTCJun 28, 08:19 UTC11h 0m
2026-06-27 KAL041 ICN → SEA Jun 27, 08:14 UTCJun 27, 17:25 UTC9h 10m
2026-06-27 KAL938 - Jun 27, 02:29 UTCJun 27, 02:55 UTC25m
2026-06-26 KAL938 - Jun 26, 16:44 UTCJun 27, 01:35 UTC8h 50m
2026-06-26 KAL937 - Jun 26, 03:15 UTCJun 26, 14:05 UTC10h 50m
2026-06-26 KAL937 - Jun 26, 02:05 UTCJun 26, 02:20 UTC15m
2026-06-24 KAL024 - Jun 24, 20:30 UTCJun 25, 08:50 UTC12h 20m
2026-06-24 KAL023 ICN → SFO Jun 24, 07:20 UTCJun 24, 16:59 UTC9h 40m
2026-06-24 KAL918 ZRH → ICN Jun 24, 04:15 UTCJun 24, 04:39 UTC25m
2026-06-23 KAL918 ZRH → ICN Jun 23, 18:04 UTCJun 24, 03:24 UTC9h 20m
2026-06-23 KAL917 - Jun 23, 04:05 UTCJun 23, 15:44 UTC11h 40m
2026-06-23 KAL917 - Jun 23, 02:45 UTCJun 23, 03:04 UTC20m
2026-06-22 KAL434 ICN → ICN Jun 22, 09:19 UTCJun 22, 23:45 UTC14h 25m
2026-06-21 KAL881 ICN → ICN Jun 21, 23:50 UTCJun 22, 05:15 UTC5h 25m
2026-06-21 KAL970 - Jun 21, 03:30 UTCJun 21, 03:59 UTC30m
2026-06-20 KAL970 - Jun 20, 17:39 UTCJun 21, 02:45 UTC9h 5m
2026-06-20 KAL969 - Jun 20, 03:49 UTCJun 20, 15:04 UTC11h 15m
2026-06-20 KAL969 - Jun 20, 02:35 UTCJun 20, 02:49 UTC15m
2026-06-19 KAL434 ICN → ICN Jun 19, 09:24 UTCJun 19, 23:44 UTC14h 20m
2026-06-19 KAL704 - Jun 19, 05:14 UTCJun 19, 07:09 UTC1h 55m
2026-06-19 KAL703 ICN → NRT Jun 19, 01:39 UTCJun 19, 03:34 UTC1h 55m
2026-06-18 KAL677 - Jun 18, 09:00 UTCJun 18, 22:20 UTC13h 20m
2026-06-18 KAL970 - Jun 18, 04:00 UTCJun 18, 04:20 UTC20m
2026-06-17 KAL970 - Jun 17, 17:40 UTCJun 17, 19:30 UTC1h 50m
2026-06-17 KAL969 - Jun 17, 08:20 UTCJun 17, 15:20 UTC7h 0m
2026-06-17 KAL969 - Jun 17, 03:05 UTCJun 17, 03:20 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 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 1h ago.
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 KAL053, KAL023, KAL072, KAL054, KAL071.