Apparatus

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sensors Mode-S transponder

71C567

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

Currently assigned to HL8567 · BOEING 737 MAX 8

Hex
71C567
Octal
34342547
Decimal
7,456,103
Country
KR
Tail
HL8567
Type
B38M
No current signal · last broadcast Jul 26, 11:40 UTC
Flights observed
353
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 11:40 UTC

Last known position

Most recent position reported by Mode-S 71C567.

Country allocation

The ICAO 24-bit address 71C567 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
KAL842 Korean Air 32 2026-07-23
KAL841 Korean Air 30 2026-07-22
KAL782 - 29 2026-07-13
KAL781 - 29 2026-07-13
KAL714 - 15 2026-07-15
KAL713 - 14 2026-07-15
KAL804 Korean Air 13 2026-07-26
KAL803 Korean Air 13 2026-07-26
KAL708 - 13 2026-07-14
KAL707 - 13 2026-07-14
KAL805 Korean Air 12 2026-07-25
KAL834 Korean Air 10 2026-07-23
KAL721 Korean Air 10 2026-07-26
KAL833 Korean Air 9 2026-07-23
KAL806 Korean Air 9 2026-07-25
KAL742 Korean Air 9 2026-07-19
KAL741 Korean Air 9 2026-07-19
KAL722 Korean Air 9 2026-07-26
KAL1432 Korean Air 7 2026-07-18
KAL1431 - 7 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL721 ICN → KIX Jul 26, 10:10 UTCJul 26, 11:35 UTC1h 25m
2026-07-26 KAL804 TSN → ICN Jul 26, 07:50 UTCJul 26, 08:10 UTC20m
2026-07-26 KAL803 ICN → TSN Jul 26, 03:50 UTCJul 26, 04:15 UTC25m
2026-07-26 KAL722 KIX → ICN Jul 26, 00:25 UTCJul 26, 01:50 UTC1h 25m
2026-07-25 KAL721 ICN → KIX Jul 25, 10:05 UTCJul 25, 11:25 UTC1h 20m
2026-07-25 KAL806 TSN → ICN Jul 25, 05:15 UTCJul 25, 05:45 UTC30m
2026-07-25 KAL805 ICN → TSN Jul 25, 01:15 UTCJul 25, 01:40 UTC25m
2026-07-24 KAL2198 KIJ → ICN Jul 24, 11:45 UTCJul 24, 13:20 UTC1h 35m
2026-07-24 KAL2197 ICN → KIJ Jul 24, 08:35 UTCJul 24, 10:00 UTC1h 25m
2026-07-24 KAL806 TSN → ICN Jul 24, 04:40 UTCJul 24, 05:05 UTC25m
2026-07-24 KAL805 ICN → TSN Jul 24, 00:40 UTCJul 24, 01:05 UTC25m
2026-07-23 KAL834 SHE → ICN Jul 23, 09:45 UTCJul 23, 10:25 UTC40m
2026-07-23 KAL833 ICN → SHE Jul 23, 05:55 UTCJul 23, 06:35 UTC40m
2026-07-23 KAL842 TAO → ICN Jul 23, 02:55 UTCJul 23, 03:15 UTC20m
2026-07-22 KAL841 ICN → TAO Jul 22, 23:10 UTCJul 22, 23:30 UTC20m
2026-07-22 KAL726 KIX → ICN Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-22 KAL842 TAO → ICN Jul 22, 02:35 UTCJul 22, 03:00 UTC25m
2026-07-21 KAL841 ICN → TAO Jul 21, 23:10 UTCJul 21, 23:40 UTC30m
2026-07-21 KAL738 KIX → ICN Jul 21, 17:35 UTCJul 21, 19:00 UTC1h 25m
2026-07-21 KAL737 ICN → KIX Jul 21, 12:10 UTCJul 21, 13:35 UTC1h 25m
2026-07-21 KAL722 KIX → ICN Jul 21, 00:35 UTCJul 21, 01:55 UTC1h 20m
2026-07-20 KAL721 ICN → KIX Jul 20, 10:05 UTCJul 20, 11:35 UTC1h 30m
2026-07-20 KAL842 - Jul 20, 02:45 UTCJul 20, 03:10 UTC25m
2026-07-19 KAL841 ICN → TAO Jul 19, 23:15 UTCJul 19, 23:45 UTC30m
2026-07-19 KAL876 - Jul 19, 13:00 UTCJul 19, 13:20 UTC20m
2026-07-19 KAL875 PUS → PVG Jul 19, 09:55 UTCJul 19, 10:20 UTC25m
2026-07-19 KAL742 NGO → ICN Jul 19, 05:10 UTCJul 19, 06:35 UTC1h 25m
2026-07-19 KAL741 ICN → NGO Jul 19, 02:05 UTCJul 19, 03:25 UTC1h 20m
2026-07-18 KAL1432 TAE → ICN Jul 18, 23:00 UTCJul 18, 23:35 UTC35m
2026-07-18 KAL1431 - Jul 18, 10:20 UTCJul 18, 10:55 UTC35m
2026-07-18 KAL804 - Jul 18, 07:50 UTCJul 18, 08:10 UTC20m
2026-07-18 KAL803 - Jul 18, 03:55 UTCJul 18, 04:15 UTC20m
2026-07-18 KAL722 KIX → ICN Jul 18, 00:19 UTCJul 18, 01:39 UTC1h 20m
2026-07-17 KAL721 ICN → KIX Jul 17, 10:05 UTCJul 17, 11:35 UTC1h 30m
2026-07-17 KAL804 - Jul 17, 07:50 UTCJul 17, 08:10 UTC20m
2026-07-17 KAL803 - Jul 17, 04:04 UTCJul 17, 04:25 UTC20m
2026-07-17 KAL722 KIX → ICN Jul 17, 00:25 UTCJul 17, 01:39 UTC1h 15m
2026-07-16 KAL721 ICN → KIX Jul 16, 10:15 UTCJul 16, 11:34 UTC1h 20m
2026-07-16 KAL804 - Jul 16, 08:05 UTCJul 16, 08:30 UTC25m
2026-07-16 KAL803 - Jul 16, 04:10 UTCJul 16, 04:30 UTC20m
2026-07-15 KAL714 - Jul 15, 12:15 UTCJul 15, 14:15 UTC2h 0m
2026-07-15 KAL713 ICN → NRT Jul 15, 08:40 UTCJul 15, 10:30 UTC1h 50m
2026-07-15 KAL742 - Jul 15, 05:10 UTCJul 15, 06:35 UTC1h 25m
2026-07-15 KAL741 - Jul 15, 02:00 UTCJul 15, 03:15 UTC1h 15m
2026-07-14 KAL708 - Jul 14, 10:15 UTCJul 14, 12:55 UTC2h 40m
2026-07-14 KAL707 - Jul 14, 06:00 UTCJul 14, 07:55 UTC1h 55m
2026-07-14 KAL842 - Jul 14, 02:50 UTCJul 14, 03:05 UTC15m
2026-07-13 KAL841 - Jul 13, 23:05 UTCJul 13, 23:25 UTC20m
2026-07-13 KAL782 - Jul 13, 12:25 UTCJul 13, 13:25 UTC1h 0m
2026-07-13 KAL781 - Jul 13, 09:55 UTCJul 13, 10:35 UTC40m

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 HL8567 page for operator, model, and routing details .

Mode-S 71C567 frequently asked

What is Mode-S code 71C567?
71C567 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8567.
Where is Mode-S 71C567 registered?
Mode-S code 71C567 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 71C567 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C567, octal 34342547, decimal 7,456,103.
What flights does 71C567 operate?
Mode-S 71C567 has broadcast 20 distinct callsigns, including KAL842, KAL841, KAL782, KAL781, KAL714.