Apparatus

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sensors Mode-S transponder

71C393

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

Currently assigned to HL8393 · BOEING 787-9 Dreamliner

Hex
71C393
Octal
34341623
Decimal
7,455,635
Country
KR
Tail
HL8393
Type
B789
Broadcasting now · callsign KAL032 · 39,975 ft
Flights observed
188
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 12:15 UTC

Current position

71C393 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C393 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
KAL964 Korean Air 12 2026-07-26
KAL963 Korean Air 12 2026-07-25
KAL956 - 8 2026-07-14
KAL480 - 8 2026-07-10
KAL955 - 7 2026-07-13
KAL677 - 7 2026-07-11
KAL922 Korean Air 6 2026-05-16
KAL921 Korean Air 6 2026-05-15
KAL498 Korean Air 6 2026-05-25
KAL032 - 6 2026-07-18
KAL031 Korean Air 6 2026-07-18
KAL647 Korean Air 5 2026-05-09
KAL479 - 5 2026-06-27
KAL472 Korean Air 5 2026-07-17
KAL432 Korean Air 5 2026-07-24
KAL874 - 4 2026-06-24
KAL696 - 4 2026-07-04
KAL678 - 4 2026-07-11
KAL648 Korean Air 4 2026-05-10
KAL468 - 4 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL705 ICN → NRT Jul 26, 10:00 UTCJul 26, 12:15 UTC2h 15m
2026-07-26 KAL964 BUD → ICN Jul 26, 04:15 UTCJul 26, 04:40 UTC25m
2026-07-25 KAL964 BUD → ICN Jul 25, 18:45 UTCJul 26, 03:30 UTC8h 45m
2026-07-25 KAL963 ICN → BUD Jul 25, 04:30 UTCJul 25, 15:55 UTC11h 25m
2026-07-24 KAL432 DPS → ICN Jul 24, 07:55 UTCJul 24, 22:50 UTC14h 55m
2026-07-24 KAL964 BUD → ICN Jul 24, 04:20 UTCJul 24, 04:35 UTC15m
2026-07-23 KAL964 BUD → ICN Jul 23, 18:40 UTCJul 24, 03:30 UTC8h 50m
2026-07-23 KAL963 ICN → BUD Jul 23, 05:55 UTCJul 23, 16:15 UTC10h 20m
2026-07-23 KAL963 ICN → BUD Jul 23, 04:40 UTCJul 23, 05:00 UTC20m
2026-07-22 KAL468 - Jul 22, 11:35 UTCJul 22, 21:50 UTC10h 15m
2026-07-22 KAL964 BUD → ICN Jul 22, 04:20 UTCJul 22, 04:35 UTC15m
2026-07-21 KAL964 BUD → ICN Jul 21, 18:55 UTCJul 22, 03:30 UTC8h 35m
2026-07-21 KAL963 ICN → BUD Jul 21, 05:55 UTCJul 21, 16:35 UTC10h 40m
2026-07-21 KAL963 ICN → BUD Jul 21, 04:40 UTCJul 21, 05:00 UTC20m
2026-07-20 KAL471 ICN → SGN Jul 20, 00:50 UTCJul 20, 11:55 UTC11h 5m
2026-07-19 KAL467 - Jul 19, 11:30 UTCJul 19, 22:15 UTC10h 45m
2026-07-18 KAL032 DFW → ICN Jul 18, 17:30 UTCJul 19, 07:10 UTC13h 40m
2026-07-18 KAL031 ICN → DFW Jul 18, 01:00 UTCJul 18, 13:40 UTC12h 41m
2026-07-17 KAL472 SGN → ICN Jul 17, 11:35 UTCJul 17, 12:15 UTC40m
2026-07-17 KAL471 - Jul 17, 00:55 UTCJul 17, 10:20 UTC9h 25m
2026-07-16 KAL468 ICN → ICN Jul 16, 11:15 UTCJul 16, 22:05 UTC10h 50m
2026-07-15 KAL408 - Jul 15, 23:00 UTCJul 16, 08:15 UTC9h 15m
2026-07-15 KAL407 - Jul 15, 11:40 UTCJul 15, 20:35 UTC8h 55m
2026-07-14 KAL492 - Jul 14, 15:15 UTCJul 14, 20:25 UTC5h 10m
2026-07-14 KAL491 - Jul 14, 07:05 UTCJul 14, 12:00 UTC4h 55m
2026-07-14 KAL956 - Jul 14, 03:10 UTCJul 14, 03:30 UTC20m
2026-07-13 KAL956 - Jul 13, 18:40 UTCJul 14, 02:25 UTC7h 45m
2026-07-13 KAL955 - Jul 13, 15:30 UTCJul 13, 16:00 UTC30m
2026-07-13 KAL955 - Jul 13, 06:10 UTCJul 13, 15:00 UTC8h 50m
2026-07-13 KAL955 - Jul 13, 05:01 UTCJul 13, 05:20 UTC20m
2026-07-13 KAL938 - Jul 13, 02:35 UTCJul 13, 02:55 UTC20m
2026-07-12 KAL938 - Jul 12, 16:45 UTCJul 13, 01:45 UTC9h 0m
2026-07-12 KAL937 - Jul 12, 03:05 UTCJul 12, 13:55 UTC10h 50m
2026-07-12 KAL937 - Jul 12, 01:55 UTCJul 12, 02:10 UTC15m
2026-07-11 KAL678 - Jul 11, 22:20 UTCJul 11, 22:40 UTC20m
2026-07-11 KAL677 - Jul 11, 09:45 UTCJul 11, 19:15 UTC9h 30m
2026-07-10 KAL480 - Jul 10, 12:10 UTCJul 11, 06:10 UTC18h 1m
2026-07-09 KAL032 DFW → ICN Jul 9, 17:40 UTCJul 10, 07:30 UTC13h 50m
2026-07-09 KAL031 ICN → DFW Jul 9, 00:50 UTCJul 9, 13:00 UTC12h 10m
2026-07-07 KAL480 - Jul 7, 11:15 UTCJul 8, 05:40 UTC18h 25m
2026-07-07 KAL2022 TPE → ICN Jul 7, 05:45 UTCJul 7, 07:50 UTC2h 5m
2026-07-07 KAL2021 - Jul 7, 01:55 UTCJul 7, 03:50 UTC1h 55m
2026-07-06 KAL677 - Jul 6, 09:20 UTCJul 6, 22:30 UTC13h 10m
2026-07-06 KAL956 - Jul 6, 04:15 UTCJul 6, 04:35 UTC20m
2026-07-05 KAL956 - Jul 5, 19:25 UTCJul 6, 03:20 UTC7h 55m
2026-07-05 KAL2901 - Jul 5, 16:35 UTCJul 5, 16:55 UTC20m
2026-07-05 KAL2901 - Jul 5, 07:30 UTCJul 5, 15:55 UTC8h 25m
2026-07-05 KAL2901 - Jul 5, 06:20 UTCJul 5, 06:35 UTC15m
2026-07-05 KAL788 - Jul 5, 02:05 UTCJul 5, 03:05 UTC1h 0m
2026-07-04 KAL787 ICN → FUK Jul 4, 23:25 UTCJul 5, 00:05 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 HL8393 page for operator, model, and routing details .

Mode-S 71C393 frequently asked

What is Mode-S code 71C393?
71C393 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8393.
Where is Mode-S 71C393 registered?
Mode-S code 71C393 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 71C393 broadcasting right now?
Yes. Mode-S 71C393 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C393, octal 34341623, decimal 7,455,635.
What flights does 71C393 operate?
Mode-S 71C393 has broadcast 20 distinct callsigns, including KAL964, KAL963, KAL956, KAL480, KAL955.