Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C075

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

Currently assigned to HL8075 · BOEING 777-200LR

Hex
71C075
Octal
34340165
Decimal
7,454,837
Country
KR
Tail
HL8075
Type
B77L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
218
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 71C075.

Country allocation

The ICAO 24-bit address 71C075 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
KAL9575 Korean Air 15 2026-05-29
KAL277 Korean Air 14 2026-07-22
KAL278 Korean Air 13 2026-07-22
KAL282 Korean Air 12 2026-06-02
KAL274 Korean Air 11 2026-07-20
KAL231 - 10 2026-06-11
KAL273 Korean Air 9 2026-07-19
KAL8313 - 8 2026-06-17
KAL349 - 8 2026-06-20
KAL239 - 7 2026-04-13
KAL504 Korean Air 6 2026-06-07
KAL341 Korean Air 6 2026-06-10
KAL9576 Korean Air 5 2026-05-29
KAL8517 Korean Air 5 2026-04-17
KAL313 - 5 2026-06-10
KAL257 Korean Air 5 2026-07-25
KAL232 Korean Air 5 2026-06-12
KAL8518 Korean Air 4 2026-04-18
KAL8314 - 4 2026-06-17
KAL314 Korean Air 4 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL258 JFK → ICN Jul 26, 06:50 UTCJul 26, 21:15 UTC14h 25m
2026-07-25 KAL257 ANC → JFK Jul 25, 22:15 UTCJul 26, 04:25 UTC6h 10m
2026-07-25 KAL257 ANC → JFK Jul 25, 13:35 UTCJul 25, 21:05 UTC7h 30m
2026-07-25 KAL558 KKJ → ICN Jul 25, 10:15 UTCJul 25, 11:15 UTC1h 0m
2026-07-25 KAL557 - Jul 25, 06:35 UTCJul 25, 07:25 UTC50m
2026-07-24 KAL252 JFK → ICN Jul 24, 13:35 UTCJul 25, 04:40 UTC15h 5m
2026-07-24 KAL251 MIA → JFK Jul 24, 08:00 UTCJul 24, 10:50 UTC2h 50m
2026-07-23 KAL251 MIA → JFK Jul 23, 22:15 UTCJul 24, 05:25 UTC7h 10m
2026-07-23 KAL251 MIA → JFK Jul 23, 13:15 UTCJul 23, 20:40 UTC7h 25m
2026-07-22 KAL278 YVR → ICN Jul 22, 21:30 UTCJul 23, 08:00 UTC10h 30m
2026-07-22 KAL277 DFW → GDL Jul 22, 01:45 UTCJul 22, 18:15 UTC16h 30m
2026-07-21 KAL277 DFW → GDL Jul 21, 16:55 UTCJul 22, 00:10 UTC7h 15m
2026-07-20 KAL274 LAX → ICN Jul 20, 22:55 UTCJul 21, 11:10 UTC12h 14m
2026-07-20 KAL274 LAX → ICN Jul 20, 13:10 UTCJul 20, 20:40 UTC7h 30m
2026-07-20 KAL274 LAX → ICN Jul 20, 07:00 UTCJul 20, 07:10 UTC10m
2026-07-20 KAL274 LAX → ICN Jul 20, 00:00 UTCJul 20, 02:50 UTC2h 50m
2026-07-19 KAL273 MIA → VCP Jul 19, 14:15 UTCJul 19, 22:00 UTC7h 45m
2026-07-19 KAL273 MIA → VCP Jul 19, 04:15 UTCJul 19, 11:40 UTC7h 25m
2026-07-18 KAL273 MIA → VCP Jul 18, 19:20 UTCJul 19, 02:50 UTC7h 30m
2026-07-18 KAL224 LAX → NRT Jul 18, 11:30 UTCJul 18, 13:15 UTC1h 45m
2026-07-17 KAL224 LAX → NRT Jul 17, 21:10 UTCJul 18, 07:10 UTC10h 1m
2026-07-17 KAL207 ICN → LAX Jul 17, 08:10 UTCJul 17, 19:09 UTC11h 0m
2026-07-16 KAL284 YYZ → ICN Jul 16, 11:05 UTCJul 17, 01:09 UTC14h 5m
2026-07-16 KAL284 - Jul 16, 07:45 UTCJul 16, 08:45 UTC1h 0m
2026-07-16 KAL283 ANC → ORD Jul 16, 00:00 UTCJul 16, 05:15 UTC5h 15m
2026-07-15 KAL283 - Jul 15, 14:55 UTCJul 15, 22:45 UTC7h 50m
2026-07-15 KAL228 - Jul 15, 07:15 UTCJul 15, 08:05 UTC50m
2026-07-14 KAL228 - Jul 14, 17:10 UTCJul 15, 04:15 UTC11h 4m
2026-07-14 KAL207 - Jul 14, 03:50 UTCJul 14, 14:45 UTC10h 55m
2026-07-13 KAL315 ICN → ICN Jul 13, 14:15 UTCJul 13, 21:05 UTC6h 50m
2026-07-13 KAL194P PUS → ICN Jul 13, 07:35 UTCJul 13, 08:20 UTC45m
2026-06-21 KAL197F ICN → PUS Jun 21, 22:04 UTCJun 21, 22:44 UTC40m
2026-06-21 KAL350 - Jun 21, 06:04 UTCJun 21, 08:49 UTC2h 45m
2026-06-20 KAL349 - Jun 20, 22:35 UTCJun 21, 00:25 UTC1h 50m
2026-06-20 KAL349 - Jun 20, 20:00 UTCJun 20, 20:09 UTC10m
2026-06-20 KAL349 - Jun 20, 13:49 UTCJun 20, 18:29 UTC4h 40m
2026-06-19 KAL274 - Jun 19, 22:45 UTCJun 20, 10:44 UTC12h 0m
2026-06-19 KAL274 - Jun 19, 07:09 UTCJun 19, 20:49 UTC13h 40m
2026-06-19 KAL274 - Jun 19, 00:59 UTCJun 19, 03:15 UTC2h 15m
2026-06-18 KAL273 MIA → VCP Jun 18, 15:35 UTCJun 18, 23:10 UTC7h 35m
2026-06-18 KAL273 MIA → VCP Jun 18, 04:15 UTCJun 18, 11:25 UTC7h 10m
2026-06-17 KAL273 MIA → VCP Jun 17, 19:25 UTCJun 18, 02:55 UTC7h 30m
2026-06-17 KAL8314 HKG → ICN Jun 17, 09:50 UTCJun 17, 12:45 UTC2h 55m
2026-06-17 KAL8313 - Jun 17, 06:50 UTCJun 17, 07:10 UTC20m
2026-06-17 KAL8313 - Jun 17, 04:00 UTCJun 17, 06:20 UTC2h 20m
2026-06-16 KAL8232 ORD → ICN Jun 16, 07:50 UTCJun 16, 21:30 UTC13h 41m
2026-06-15 KAL8231 ICN → ORD Jun 15, 23:54 UTCJun 16, 05:05 UTC5h 10m
2026-06-15 KAL8231 ICN → ORD Jun 15, 14:55 UTCJun 15, 22:30 UTC7h 35m
2026-06-14 KAL362 - Jun 14, 21:05 UTCJun 15, 00:45 UTC3h 39m
2026-06-14 KAL361 ICN → HAN Jun 14, 14:45 UTCJun 14, 18:30 UTC3h 45m

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 HL8075 page for operator, model, and routing details .

Mode-S 71C075 frequently asked

What is Mode-S code 71C075?
71C075 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8075.
Where is Mode-S 71C075 registered?
Mode-S code 71C075 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 71C075 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C075, octal 34340165, decimal 7,454,837.
What flights does 71C075 operate?
Mode-S 71C075 has broadcast 20 distinct callsigns, including KAL9575, KAL277, KAL278, KAL282, KAL274.