Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C576

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

Currently assigned to HL8576 · BOEING 787-10 Dreamliner

Hex
71C576
Octal
34342566
Decimal
7,456,118
Country
KR
Tail
HL8576
Type
B78X
No current signal · last broadcast Jul 26, 05:25 UTC
Flights observed
250
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 05:25 UTC

Last known position

Most recent position reported by Mode-S 71C576.

Country allocation

The ICAO 24-bit address 71C576 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
KAL071 Korean Air 15 2026-07-23
KAL072 Korean Air 14 2026-07-23
KAL928 Korean Air 12 2026-07-23
KAL024 Korean Air 11 2026-07-19
KAL023 Korean Air 11 2026-07-19
KAL927 Korean Air 10 2026-07-22
KAL053 - 10 2026-07-15
KAL437 - 8 2026-06-28
KAL402 - 8 2026-06-25
KAL401 - 8 2026-06-25
KAL054 - 8 2026-07-15
KAL881 - 7 2026-07-16
KAL647 Korean Air 7 2026-05-31
KAL2021 Korean Air 7 2026-05-30
KAL076 Korean Air 7 2026-07-25
KAL724 Korean Air 6 2026-07-26
KAL648 Korean Air 6 2026-06-01
KAL2022 Korean Air 6 2026-05-30
KAL075 Korean Air 6 2026-07-24
KAL041 - 6 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL724 KIX → ICN Jul 26, 03:55 UTCJul 26, 05:25 UTC1h 30m
2026-07-26 KAL723 ICN → KIX Jul 26, 00:55 UTCJul 26, 02:10 UTC1h 15m
2026-07-25 KAL076 YVR → ICN Jul 25, 08:10 UTCJul 25, 18:35 UTC10h 25m
2026-07-24 KAL075 ICN → YVR Jul 24, 14:05 UTCJul 24, 23:40 UTC9h 35m
2026-07-23 KAL072 YVR → ICN Jul 23, 22:15 UTCJul 24, 08:30 UTC10h 15m
2026-07-23 KAL071 ICN → YVR Jul 23, 10:25 UTCJul 23, 19:50 UTC9h 25m
2026-07-23 KAL928 MXP → ICN Jul 23, 07:15 UTCJul 23, 07:35 UTC20m
2026-07-22 KAL928 MXP → ICN Jul 22, 21:10 UTCJul 23, 06:35 UTC9h 25m
2026-07-22 KAL927 ICN → MXP Jul 22, 14:25 UTCJul 22, 18:45 UTC4h 20m
2026-07-22 KAL788 FUK → ICN Jul 22, 02:05 UTCJul 22, 03:05 UTC1h 0m
2026-07-21 KAL787 - Jul 21, 23:20 UTCJul 22, 00:05 UTC45m
2026-07-20 KAL072 YVR → ICN Jul 20, 22:45 UTCJul 21, 09:10 UTC10h 24m
2026-07-20 KAL071 ICN → YVR Jul 20, 10:30 UTCJul 20, 20:15 UTC9h 45m
2026-07-19 KAL024 SFO → ICN Jul 19, 20:45 UTCJul 20, 07:55 UTC11h 10m
2026-07-19 KAL023 ICN → SFO Jul 19, 07:35 UTCJul 19, 18:00 UTC10h 25m
2026-07-19 KAL918 - Jul 19, 04:50 UTCJul 19, 05:10 UTC20m
2026-07-18 KAL918 - Jul 18, 18:20 UTCJul 19, 04:05 UTC9h 45m
2026-07-18 KAL917 - Jul 18, 03:45 UTCJul 18, 15:20 UTC11h 35m
2026-07-18 KAL917 - Jul 18, 02:35 UTCJul 18, 02:55 UTC21m
2026-07-17 KAL434 DPS → ICN Jul 17, 09:25 UTCJul 18, 00:04 UTC14h 40m
2026-07-16 KAL881 ICN → ICN Jul 16, 23:55 UTCJul 17, 05:30 UTC5h 35m
2026-07-16 KAL881 ICN → ICN Jul 16, 23:40 UTCJul 16, 23:44 UTC5m
2026-07-15 KAL054 - Jul 15, 23:35 UTCJul 16, 08:30 UTC8h 55m
2026-07-15 KAL053 - Jul 15, 20:10 UTCJul 15, 20:35 UTC25m
2026-07-15 KAL053 - Jul 15, 12:30 UTCJul 15, 14:15 UTC1h 45m
2026-07-14 KAL054 - Jul 14, 23:30 UTCJul 15, 08:40 UTC9h 10m
2026-07-14 KAL053 - Jul 14, 13:00 UTCJul 14, 21:10 UTC8h 10m
2026-07-13 KAL072 - Jul 13, 22:10 UTCJul 14, 08:35 UTC10h 25m
2026-07-13 KAL071 ICN → YVR Jul 13, 10:10 UTCJul 13, 19:45 UTC9h 35m
2026-07-13 KAL928 - Jul 13, 06:30 UTCJul 13, 06:50 UTC20m
2026-07-12 KAL928 - Jul 12, 20:30 UTCJul 13, 05:45 UTC9h 15m
2026-07-12 KAL927 - Jul 12, 06:05 UTCJul 12, 17:35 UTC11h 30m
2026-07-12 KAL927 - Jul 12, 04:55 UTCJul 12, 05:15 UTC20m
2026-07-11 KAL076 YVR → ICN Jul 11, 08:25 UTCJul 11, 18:30 UTC10h 5m
2026-07-10 KAL075 - Jul 10, 14:10 UTCJul 11, 00:20 UTC10h 10m
2026-07-09 KAL072 YVR → ICN Jul 9, 22:05 UTCJul 10, 08:35 UTC10h 30m
2026-07-09 KAL071 ICN → YVR Jul 9, 10:10 UTCJul 9, 19:30 UTC9h 20m
2026-07-08 KAL042 SEA → ICN Jul 8, 20:45 UTCJul 9, 07:20 UTC10h 35m
2026-07-08 KAL041 ICN → SEA Jul 8, 08:00 UTCJul 8, 17:30 UTC9h 30m
2026-07-08 KAL724 KIX → ICN Jul 8, 04:00 UTCJul 8, 05:20 UTC1h 20m
2026-07-08 KAL723 - Jul 8, 01:05 UTCJul 8, 02:25 UTC1h 20m
2026-07-06 KAL072 - Jul 6, 22:15 UTCJul 7, 08:25 UTC10h 10m
2026-07-06 KAL071 ICN → YVR Jul 6, 10:15 UTCJul 6, 19:35 UTC9h 20m
2026-07-06 KAL928 - Jul 6, 06:50 UTCJul 6, 07:15 UTC25m
2026-07-05 KAL928 - Jul 5, 20:25 UTCJul 6, 06:05 UTC9h 40m
2026-07-05 KAL927 - Jul 5, 06:45 UTCJul 5, 18:05 UTC11h 20m
2026-07-05 KAL927 - Jul 5, 05:35 UTCJul 5, 05:50 UTC15m
2026-07-04 KAL448 - Jul 4, 19:30 UTCJul 4, 20:10 UTC40m
2026-07-04 KAL448 - Jul 4, 16:35 UTCJul 4, 16:50 UTC15m
2026-07-04 KAL447 - Jul 4, 14:05 UTCJul 4, 14:40 UTC35m

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 HL8576 page for operator, model, and routing details .

Mode-S 71C576 frequently asked

What is Mode-S code 71C576?
71C576 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8576.
Where is Mode-S 71C576 registered?
Mode-S code 71C576 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 71C576 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 05:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C576, octal 34342566, decimal 7,456,118.
What flights does 71C576 operate?
Mode-S 71C576 has broadcast 20 distinct callsigns, including KAL071, KAL072, KAL928, KAL024, KAL023.