Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C570

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

Currently assigned to HL8570 · BOEING 787-10 Dreamliner

Hex
71C570
Octal
34342560
Decimal
7,456,112
Country
KR
Tail
HL8570
Type
B78X
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
224
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 71C570.

Country allocation

The ICAO 24-bit address 71C570 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
KAL2021 - 16 2026-06-25
KAL072 Korean Air 15 2026-07-24
KAL2022 - 12 2026-06-25
KAL071 Korean Air 12 2026-07-24
KAL053 Korean Air 12 2026-07-21
KAL401 - 11 2026-06-20
KAL041 Korean Air 11 2026-07-23
KAL434 Korean Air 10 2026-07-26
KAL042 Korean Air 10 2026-07-23
KAL402 - 9 2026-06-20
KAL054 Korean Air 9 2026-07-21
KAL964 Korean Air 7 2026-05-12
KAL963 Korean Air 7 2026-05-11
KAL448 - 6 2026-06-21
KAL970 - 5 2026-06-30
KAL969 - 5 2026-06-29
KAL928 Korean Air 5 2026-06-08
KAL927 Korean Air 5 2026-06-07
KAL447 - 5 2026-06-21
KAL888 Korean Air 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL434 DPS → ICN Jul 26, 09:30 UTCJul 26, 21:15 UTC11h 45m
2026-07-26 KAL704 NRT → ICN Jul 26, 05:20 UTCJul 26, 07:20 UTC2h 1m
2026-07-26 KAL703 ICN → NRT Jul 26, 01:25 UTCJul 26, 03:20 UTC1h 55m
2026-07-24 KAL072 YVR → ICN Jul 24, 22:25 UTCJul 25, 09:00 UTC10h 35m
2026-07-24 KAL071 ICN → YVR Jul 24, 10:20 UTCJul 24, 19:55 UTC9h 35m
2026-07-23 KAL042 SEA → ICN Jul 23, 20:45 UTCJul 24, 07:05 UTC10h 20m
2026-07-23 KAL041 ICN → SEA Jul 23, 08:10 UTCJul 23, 17:50 UTC9h 40m
2026-07-23 KAL724 KIX → ICN Jul 23, 04:15 UTCJul 23, 05:35 UTC1h 20m
2026-07-23 KAL723 ICN → KIX Jul 23, 01:10 UTCJul 23, 02:30 UTC1h 20m
2026-07-21 KAL054 HNL → ICN Jul 21, 23:45 UTCJul 22, 00:10 UTC25m
2026-07-21 KAL053 ICN → HNL Jul 21, 20:40 UTCJul 21, 20:50 UTC10m
2026-07-21 KAL053 ICN → HNL Jul 21, 12:30 UTCJul 21, 14:25 UTC1h 55m
2026-07-20 KAL042 SEA → ICN Jul 20, 20:50 UTCJul 21, 07:30 UTC10h 40m
2026-07-20 KAL041 ICN → SEA Jul 20, 08:05 UTCJul 20, 18:00 UTC9h 55m
2026-07-20 KAL881 ICN → PVG Jul 20, 00:05 UTCJul 20, 05:20 UTC5h 15m
2026-07-19 KAL196P PUS → ICN Jul 19, 08:00 UTCJul 19, 08:35 UTC35m
2026-07-06 KAL195F ICN → PUS Jul 6, 22:10 UTCJul 6, 22:55 UTC45m
2026-07-05 KAL054 - Jul 5, 23:30 UTCJul 6, 08:55 UTC9h 25m
2026-07-05 KAL053 - Jul 5, 20:20 UTCJul 5, 20:30 UTC10m
2026-07-05 KAL053 - Jul 5, 12:25 UTCJul 5, 14:05 UTC1h 40m
2026-07-04 KAL072 YVR → ICN Jul 4, 22:20 UTCJul 5, 09:10 UTC10h 50m
2026-07-04 KAL071 ICN → YVR Jul 4, 10:10 UTCJul 4, 19:30 UTC9h 20m
2026-07-03 KAL076 YVR → ICN Jul 3, 08:30 UTCJul 3, 19:40 UTC11h 10m
2026-07-02 KAL075 ICN → YVR Jul 2, 14:40 UTCJul 2, 23:25 UTC8h 45m
2026-07-01 KAL072 YVR → ICN Jul 1, 22:10 UTCJul 2, 08:50 UTC10h 40m
2026-07-01 KAL071 ICN → YVR Jul 1, 10:20 UTCJul 1, 19:25 UTC9h 5m
2026-06-30 KAL042 SEA → ICN Jun 30, 20:35 UTCJul 1, 07:40 UTC11h 5m
2026-06-30 KAL041 ICN → SEA Jun 30, 08:20 UTCJun 30, 17:40 UTC9h 20m
2026-06-30 KAL970 - Jun 30, 03:35 UTCJun 30, 04:00 UTC25m
2026-06-29 KAL970 - Jun 29, 17:30 UTCJun 30, 02:45 UTC9h 16m
2026-06-29 KAL969 - Jun 29, 03:49 UTCJun 29, 15:00 UTC11h 10m
2026-06-29 KAL969 - Jun 29, 02:39 UTCJun 29, 02:54 UTC15m
2026-06-28 KAL434 ICN → ICN Jun 28, 09:55 UTCJun 29, 00:24 UTC14h 30m
2026-06-28 KAL704 - Jun 28, 05:20 UTCJun 28, 07:20 UTC2h 0m
2026-06-28 KAL703 - Jun 28, 01:44 UTCJun 28, 03:40 UTC1h 55m
2026-06-27 KAL054 - Jun 27, 06:30 UTCJun 27, 08:49 UTC2h 20m
2026-06-26 KAL054 - Jun 26, 23:39 UTCJun 26, 23:49 UTC10m
2026-06-26 KAL053 - Jun 26, 12:29 UTCJun 26, 20:10 UTC7h 40m
2026-06-25 KAL072 YVR → ICN Jun 25, 22:14 UTCJun 26, 08:45 UTC10h 30m
2026-06-25 KAL071 ICN → YVR Jun 25, 10:20 UTCJun 25, 19:15 UTC8h 55m
2026-06-25 KAL2022 TPE → ICN Jun 25, 05:39 UTCJun 25, 07:39 UTC2h 0m
2026-06-25 KAL2021 - Jun 25, 03:44 UTCJun 25, 03:59 UTC15m
2026-06-25 KAL2021 - Jun 25, 01:54 UTCJun 25, 02:30 UTC35m
2026-06-23 KAL072 - Jun 23, 22:10 UTCJun 24, 08:45 UTC10h 35m
2026-06-23 KAL071 ICN → YVR Jun 23, 10:10 UTCJun 23, 19:10 UTC9h 0m
2026-06-23 KAL938 - Jun 23, 02:29 UTCJun 23, 02:49 UTC20m
2026-06-22 KAL938 - Jun 22, 16:54 UTCJun 23, 01:40 UTC8h 45m
2026-06-22 KAL937 - Jun 22, 03:19 UTCJun 22, 14:24 UTC11h 5m
2026-06-22 KAL937 - Jun 22, 02:04 UTCJun 22, 02:19 UTC15m
2026-06-21 KAL448 - Jun 21, 17:35 UTCJun 21, 21:10 UTC3h 35m

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 HL8570 page for operator, model, and routing details .

Mode-S 71C570 frequently asked

What is Mode-S code 71C570?
71C570 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8570.
Where is Mode-S 71C570 registered?
Mode-S code 71C570 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 71C570 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C570, octal 34342560, decimal 7,456,112.
What flights does 71C570 operate?
Mode-S 71C570 has broadcast 20 distinct callsigns, including KAL2021, KAL072, KAL2022, KAL071, KAL053.