Apparatus

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sensors Mode-S transponder

71C352

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

Currently assigned to HL8352 · BOEING 737 MAX 8

Hex
71C352
Octal
34341522
Decimal
7,455,570
Country
KR
Tail
HL8352
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
264
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 71C352.

Country allocation

The ICAO 24-bit address 71C352 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
KAL782 - 19 2026-06-28
KAL781 - 19 2026-06-28
KAL713 - 19 2026-07-13
KAL806 - 18 2026-06-27
KAL805 - 18 2026-07-14
KAL714 - 18 2026-07-13
KAL841 - 15 2026-06-29
KAL842 - 12 2026-06-30
KAL834 - 12 2026-06-29
KAL833 - 10 2026-06-29
KAL8795 Korean Air 7 2026-05-03
KAL796 - 7 2026-07-12
KAL795 - 7 2026-07-12
KAL742 - 7 2026-07-13
KAL741 - 7 2026-07-13
KAL708 - 7 2026-06-30
KAL707 - 7 2026-06-30
KAL8796 Korean Air 6 2026-05-03
KAL2148 - 6 2026-06-24
KAL891 Korean Air 4 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL805 - Jul 14, 00:40 UTCJul 14, 01:05 UTC25m
2026-07-13 KAL714 NRT → ICN Jul 13, 12:20 UTCJul 13, 14:25 UTC2h 5m
2026-07-13 KAL713 - Jul 13, 08:35 UTCJul 13, 10:40 UTC2h 5m
2026-07-13 KAL742 - Jul 13, 05:01 UTCJul 13, 06:25 UTC1h 25m
2026-07-13 KAL741 - Jul 13, 02:01 UTCJul 13, 03:20 UTC1h 20m
2026-07-12 KAL796 - Jul 12, 11:10 UTCJul 12, 12:10 UTC1h 0m
2026-07-12 KAL795 - Jul 12, 08:20 UTCJul 12, 09:05 UTC45m
2026-07-08 KAL200P - Jul 8, 20:00 UTCJul 8, 20:30 UTC30m
2026-07-02 KAL299F - Jul 2, 14:25 UTCJul 2, 15:05 UTC40m
2026-07-02 KAL742 - Jul 2, 05:00 UTCJul 2, 06:35 UTC1h 35m
2026-07-02 KAL741 - Jul 2, 02:05 UTCJul 2, 03:20 UTC1h 15m
2026-06-30 KAL708 - Jun 30, 10:20 UTCJun 30, 12:15 UTC1h 55m
2026-06-30 KAL707 ICN → NRT Jun 30, 06:10 UTCJun 30, 08:10 UTC2h 0m
2026-06-30 KAL842 - Jun 30, 02:50 UTCJun 30, 03:25 UTC35m
2026-06-29 KAL841 - Jun 29, 23:09 UTCJun 29, 23:25 UTC15m
2026-06-29 KAL834 - Jun 29, 09:50 UTCJun 29, 10:15 UTC25m
2026-06-29 KAL833 - Jun 29, 05:50 UTCJun 29, 06:05 UTC15m
2026-06-28 KAL782 - Jun 28, 12:25 UTCJun 28, 13:19 UTC55m
2026-06-28 KAL781 - Jun 28, 10:04 UTCJun 28, 10:50 UTC45m
2026-06-28 KAL804 - Jun 28, 07:54 UTCJun 28, 08:14 UTC20m
2026-06-28 KAL803 - Jun 28, 03:55 UTCJun 28, 04:10 UTC15m
2026-06-27 KAL796 CTS → ICN Jun 27, 10:40 UTCJun 27, 11:39 UTC1h 0m
2026-06-27 KAL795 - Jun 27, 06:54 UTCJun 27, 07:55 UTC1h 0m
2026-06-27 KAL806 - Jun 27, 04:29 UTCJun 27, 04:54 UTC25m
2026-06-27 KAL805 - Jun 27, 00:25 UTCJun 27, 00:44 UTC20m
2026-06-26 KAL708 - Jun 26, 10:39 UTCJun 26, 12:44 UTC2h 5m
2026-06-26 KAL707 ICN → NRT Jun 26, 06:15 UTCJun 26, 08:24 UTC2h 10m
2026-06-26 KAL842 - Jun 26, 02:34 UTCJun 26, 03:05 UTC30m
2026-06-25 KAL841 - Jun 25, 23:05 UTCJun 25, 23:30 UTC25m
2026-06-25 KAL708 - Jun 25, 10:30 UTCJun 25, 12:40 UTC2h 10m
2026-06-25 KAL707 - Jun 25, 06:05 UTCJun 25, 07:59 UTC1h 55m
2026-06-25 KAL842 - Jun 25, 02:30 UTCJun 25, 03:04 UTC35m
2026-06-24 KAL841 - Jun 24, 23:20 UTCJun 24, 23:50 UTC30m
2026-06-24 KAL782 - Jun 24, 12:25 UTCJun 24, 13:14 UTC50m
2026-06-24 KAL781 - Jun 24, 09:59 UTCJun 24, 10:45 UTC45m
2026-06-24 KAL2148 - Jun 24, 00:55 UTCJun 24, 06:29 UTC5h 35m
2026-06-23 KAL782 - Jun 23, 12:15 UTCJun 23, 13:09 UTC55m
2026-06-23 KAL781 - Jun 23, 09:54 UTCJun 23, 10:35 UTC40m
2026-06-23 KAL742 - Jun 23, 04:50 UTCJun 23, 06:19 UTC1h 30m
2026-06-23 KAL741 - Jun 23, 02:04 UTCJun 23, 03:25 UTC1h 20m
2026-06-22 KAL796 CTS → ICN Jun 22, 10:34 UTCJun 22, 11:35 UTC1h 0m
2026-06-22 KAL795 - Jun 22, 06:49 UTCJun 22, 07:30 UTC40m
2026-06-22 KAL806 - Jun 22, 04:44 UTCJun 22, 05:10 UTC25m
2026-06-22 KAL805 - Jun 22, 00:44 UTCJun 22, 01:00 UTC15m
2026-06-21 KAL714 - Jun 21, 12:35 UTCJun 21, 14:30 UTC1h 55m
2026-06-21 KAL713 - Jun 21, 08:40 UTCJun 21, 10:40 UTC2h 0m
2026-06-21 KAL2148 ICN → ICN Jun 21, 01:05 UTCJun 21, 06:24 UTC5h 20m
2026-06-20 KAL782 - Jun 20, 12:59 UTCJun 20, 13:44 UTC45m
2026-06-20 KAL781 - Jun 20, 09:59 UTCJun 20, 11:05 UTC1h 5m
2026-06-20 KAL742 - Jun 20, 04:54 UTCJun 20, 06:29 UTC1h 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 HL8352 page for operator, model, and routing details .

Mode-S 71C352 frequently asked

What is Mode-S code 71C352?
71C352 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8352.
Where is Mode-S 71C352 registered?
Mode-S code 71C352 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 71C352 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 71C352, octal 34341522, decimal 7,455,570.
What flights does 71C352 operate?
Mode-S 71C352 has broadcast 20 distinct callsigns, including KAL782, KAL781, KAL713, KAL806, KAL805.