Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C732

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

Currently assigned to HL8732 · BOEING 787-10 Dreamliner

Hex
71C732
Octal
34343462
Decimal
7,456,562
Country
KR
Tail
HL8732
Type
B78X
No current signal · last broadcast 17m ago
Flights observed
219
Distinct callsigns
20
Country
KR
Last broadcast
17m ago

Last known position

Most recent position reported by Mode-S 71C732.

Country allocation

The ICAO 24-bit address 71C732 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
KAL024 - 16 2026-07-11
KAL023 - 14 2026-07-11
KAL053 - 13 2026-07-01
KAL075 - 11 2026-07-04
KAL076 - 10 2026-07-05
KAL054 - 10 2026-07-02
KAL072 - 9 2026-07-12
KAL071 - 9 2026-07-12
KAL970 - 8 2026-07-10
KAL2022 - 8 2026-06-18
KAL2021 - 8 2026-06-18
KAL969 - 6 2026-07-10
KAL928 - 6 2026-06-27
KAL927 - 6 2026-06-26
KAL437 - 6 2026-06-25
KAL448 - 5 2026-07-09
KAL434 - 5 2026-07-06
KAL724 - 4 2026-06-23
KAL723 - 4 2026-07-14
KAL042 - 4 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL723 ICN → KIX Jul 14, 01:05 UTCJul 14, 02:25 UTC1h 20m
2026-07-13 KAL468 - Jul 13, 11:30 UTCJul 13, 22:30 UTC11h 0m
2026-07-12 KAL072 YVR → ICN Jul 12, 22:15 UTCJul 13, 08:30 UTC10h 15m
2026-07-12 KAL071 ICN → YVR Jul 12, 10:25 UTCJul 12, 20:05 UTC9h 40m
2026-07-11 KAL024 - Jul 11, 20:40 UTCJul 12, 08:01 UTC11h 20m
2026-07-11 KAL023 ICN → SFO Jul 11, 07:30 UTCJul 11, 17:50 UTC10h 20m
2026-07-10 KAL970 PRG → ICN Jul 10, 17:15 UTCJul 11, 03:35 UTC10h 20m
2026-07-10 KAL969 - Jul 10, 02:30 UTCJul 10, 14:50 UTC12h 20m
2026-07-09 KAL448 - Jul 9, 19:40 UTCJul 9, 20:20 UTC40m
2026-07-09 KAL447 - Jul 9, 10:45 UTCJul 9, 11:30 UTC45m
2026-07-08 KAL072 - Jul 8, 22:15 UTCJul 9, 08:45 UTC10h 30m
2026-07-08 KAL071 ICN → YVR Jul 8, 10:25 UTCJul 8, 19:45 UTC9h 20m
2026-07-08 KAL918 ZRH → ICN Jul 8, 04:20 UTCJul 8, 04:40 UTC20m
2026-07-07 KAL918 ZRH → ICN Jul 7, 18:05 UTCJul 8, 03:35 UTC9h 30m
2026-07-07 KAL917 - Jul 7, 11:05 UTCJul 7, 15:30 UTC4h 25m
2026-07-07 KAL917 - Jul 7, 02:45 UTCJul 7, 03:05 UTC20m
2026-07-06 KAL434 - Jul 6, 09:25 UTCJul 6, 23:55 UTC14h 30m
2026-07-05 KAL076 YVR → ICN Jul 5, 08:05 UTCJul 5, 18:30 UTC10h 25m
2026-07-04 KAL075 ICN → YVR Jul 4, 14:05 UTCJul 4, 23:20 UTC9h 15m
2026-07-03 KAL042 SEA → ICN Jul 3, 20:35 UTCJul 4, 07:25 UTC10h 50m
2026-07-03 KAL041 ICN → SEA Jul 3, 08:25 UTCJul 3, 17:40 UTC9h 15m
2026-07-02 KAL881 ICN → ICN Jul 2, 23:50 UTCJul 3, 05:10 UTC5h 20m
2026-07-02 KAL054 - Jul 2, 06:25 UTCJul 2, 08:50 UTC2h 25m
2026-07-01 KAL054 - Jul 1, 23:30 UTCJul 1, 23:45 UTC15m
2026-07-01 KAL053 - Jul 1, 12:30 UTCJul 1, 20:20 UTC7h 50m
2026-06-30 KAL072 - Jun 30, 22:15 UTCJul 1, 08:50 UTC10h 35m
2026-06-30 KAL071 ICN → YVR Jun 30, 10:15 UTCJun 30, 19:15 UTC9h 0m
2026-06-30 KAL956 - Jun 30, 03:40 UTCJun 30, 04:00 UTC20m
2026-06-29 KAL956 - Jun 29, 18:55 UTCJun 30, 02:50 UTC7h 56m
2026-06-29 KAL955 - Jun 29, 06:24 UTCJun 29, 15:54 UTC9h 30m
2026-06-29 KAL955 - Jun 29, 05:15 UTCJun 29, 05:30 UTC15m
2026-06-27 KAL054 - Jun 27, 23:25 UTCJun 28, 08:34 UTC9h 10m
2026-06-27 KAL053 - Jun 27, 12:25 UTCJun 27, 14:00 UTC1h 35m
2026-06-27 KAL928 - Jun 27, 06:44 UTCJun 27, 07:10 UTC25m
2026-06-26 KAL928 - Jun 26, 20:29 UTCJun 27, 05:59 UTC9h 30m
2026-06-26 KAL927 - Jun 26, 06:25 UTCJun 26, 17:44 UTC11h 20m
2026-06-26 KAL927 - Jun 26, 05:19 UTCJun 26, 05:30 UTC10m
2026-06-25 KAL438 - Jun 25, 21:05 UTCJun 26, 02:05 UTC5h 0m
2026-06-25 KAL437 - Jun 25, 16:59 UTCJun 25, 17:14 UTC15m
2026-06-25 KAL437 - Jun 25, 11:04 UTCJun 25, 15:44 UTC4h 40m
2026-06-24 KAL072 - Jun 24, 22:10 UTCJun 25, 08:34 UTC10h 25m
2026-06-24 KAL071 ICN → YVR Jun 24, 10:19 UTCJun 24, 19:10 UTC8h 50m
2026-06-23 KAL024 - Jun 23, 20:15 UTCJun 24, 07:44 UTC11h 30m
2026-06-23 KAL023 ICN → SFO Jun 23, 07:45 UTCJun 23, 17:25 UTC9h 40m
2026-06-23 KAL724 - Jun 23, 04:09 UTCJun 23, 05:29 UTC1h 20m
2026-06-23 KAL723 ICN → KIX Jun 23, 01:10 UTCJun 23, 02:24 UTC1h 15m
2026-06-21 KAL054 - Jun 21, 23:30 UTCJun 22, 08:35 UTC9h 5m
2026-06-21 KAL053 - Jun 21, 12:24 UTCJun 21, 14:15 UTC1h 50m
2026-06-20 KAL054 - Jun 20, 23:34 UTCJun 21, 08:49 UTC9h 15m
2026-06-20 KAL053 - Jun 20, 20:20 UTCJun 20, 20:29 UTC10m

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 HL8732 page for operator, model, and routing details .

Mode-S 71C732 frequently asked

What is Mode-S code 71C732?
71C732 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8732.
Where is Mode-S 71C732 registered?
Mode-S code 71C732 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 71C732 broadcasting right now?
No active broadcast right now. Last signal was 17m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C732, octal 34343462, decimal 7,456,562.
What flights does 71C732 operate?
Mode-S 71C732 has broadcast 20 distinct callsigns, including KAL024, KAL023, KAL053, KAL075, KAL076.