Apparatus

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sensors Mode-S transponder

71C005

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

Currently assigned to HL8005 · BOEING 777-200LR

Hex
71C005
Octal
34340005
Decimal
7,454,725
Country
KR
Tail
HL8005
Type
B77L
No current signal · last broadcast Jul 26, 17:40 UTC
Flights observed
267
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 17:40 UTC

Last known position

Most recent position reported by Mode-S 71C005.

Country allocation

The ICAO 24-bit address 71C005 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
KAL249 Korean Air 21 2026-06-04
KAL8250 Korean Air 11 2026-06-05
KAL567 - 9 2026-07-05
KAL542 Korean Air 9 2026-07-22
KAL251 - 9 2026-07-03
KAL541 Korean Air 8 2026-07-21
KAL504 Korean Air 8 2026-07-23
KAL231 - 8 2026-07-20
KAL8258 Korean Air 7 2026-05-21
KAL9232 - 6 2026-04-13
KAL285 - 6 2026-06-27
KAL278 - 6 2026-07-16
KAL277 - 6 2026-07-16
KAL257 - 6 2026-07-12
KAL568 - 5 2026-07-06
KAL503 - 5 2026-07-23
KAL313 - 5 2026-07-04
KAL9575 - 4 2026-06-19
KAL8313 Korean Air 4 2026-05-06
KAL8257 Korean Air 4 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL239 ICN → DFW Jul 26, 17:15 UTCJul 26, 17:40 UTC25m
2026-07-25 KAL8236 ORD → ANC Jul 25, 22:25 UTCJul 26, 07:10 UTC8h 46m
2026-07-25 KAL8236 ORD → ANC Jul 25, 14:00 UTCJul 25, 21:05 UTC7h 5m
2026-07-25 KAL8235 LAX → ORD Jul 25, 10:05 UTCJul 25, 11:30 UTC1h 25m
2026-07-25 KAL8235 LAX → ORD Jul 25, 02:20 UTCJul 25, 07:35 UTC5h 15m
2026-07-24 KAL8235 LAX → ORD Jul 24, 17:35 UTCJul 25, 01:05 UTC7h 30m
2026-07-23 KAL504 LHR → ICN Jul 23, 23:40 UTCJul 24, 10:55 UTC11h 15m
2026-07-23 KAL504 LHR → ICN Jul 23, 20:25 UTCJul 23, 21:05 UTC40m
2026-07-23 KAL503 ICN → LHR Jul 23, 05:15 UTCJul 23, 17:05 UTC11h 50m
2026-07-23 KAL503 - Jul 23, 04:05 UTCJul 23, 04:25 UTC20m
2026-07-22 KAL542 OSL → ICN Jul 22, 11:15 UTCJul 22, 23:05 UTC11h 50m
2026-07-21 KAL541 ICN → VIE Jul 21, 18:10 UTCJul 22, 05:00 UTC10h 50m
2026-07-21 KAL541 ICN → VIE Jul 21, 17:05 UTCJul 21, 17:20 UTC15m
2026-07-21 KAL232 ORD → ANC Jul 21, 00:05 UTCJul 21, 14:05 UTC14h 0m
2026-07-20 KAL231 - Jul 20, 17:15 UTCJul 20, 21:40 UTC4h 25m
2026-07-20 KAL231 - Jul 20, 16:10 UTCJul 20, 17:10 UTC1h 0m
2026-07-20 KAL231 - Jul 20, 07:35 UTCJul 20, 15:00 UTC7h 25m
2026-07-19 KAL320 CAN → ICN Jul 19, 22:55 UTCJul 19, 23:35 UTC40m
2026-07-19 KAL319 ICN → CAN Jul 19, 15:30 UTCJul 19, 16:10 UTC40m
2026-07-18 KAL8204 ICN → LAX Jul 18, 04:20 UTCJul 18, 15:50 UTC11h 30m
2026-07-17 KAL8203 ICN → LAX Jul 17, 13:55 UTCJul 18, 01:00 UTC11h 5m
2026-07-16 KAL278 YVR → ICN Jul 16, 20:55 UTCJul 17, 07:14 UTC10h 20m
2026-07-16 KAL278 DFW → YVR Jul 16, 10:00 UTCJul 16, 18:34 UTC8h 35m
2026-07-16 KAL277 - Jul 16, 01:55 UTCJul 16, 07:50 UTC5h 55m
2026-07-15 KAL277 ICN → ANC Jul 15, 17:10 UTCJul 16, 00:45 UTC7h 35m
2026-07-14 KAL8284 YYZ → ICN Jul 14, 23:55 UTCJul 15, 14:20 UTC14h 25m
2026-07-14 KAL8284 - Jul 14, 20:35 UTCJul 14, 21:45 UTC1h 10m
2026-07-14 KAL8283 ANC → ORD Jul 14, 12:10 UTCJul 14, 17:30 UTC5h 20m
2026-07-14 KAL8283 ICN → ANC Jul 14, 03:20 UTCJul 14, 10:55 UTC7h 35m
2026-07-13 KAL319 ICN → ICN Jul 13, 15:20 UTCJul 13, 23:30 UTC8h 10m
2026-07-13 KAL9552 - Jul 13, 10:00 UTCJul 13, 11:50 UTC1h 50m
2026-07-13 KAL9551 - Jul 13, 05:40 UTCJul 13, 07:40 UTC2h 0m
2026-07-12 KAL258 - Jul 12, 09:45 UTCJul 13, 00:15 UTC14h 30m
2026-07-12 KAL257 - Jul 12, 00:40 UTCJul 12, 07:01 UTC6h 20m
2026-07-11 KAL257 ICN → ANC Jul 11, 15:30 UTCJul 11, 23:10 UTC7h 40m
2026-07-11 KAL224 - Jul 11, 10:35 UTCJul 11, 12:30 UTC1h 55m
2026-07-10 KAL224 - Jul 10, 21:30 UTCJul 11, 08:25 UTC10h 55m
2026-07-10 KAL207 - Jul 10, 08:10 UTCJul 10, 18:55 UTC10h 45m
2026-07-09 KAL284 YYZ → ICN Jul 9, 11:15 UTCJul 10, 00:50 UTC13h 35m
2026-07-09 KAL284 - Jul 9, 07:50 UTCJul 9, 08:55 UTC1h 5m
2026-07-09 KAL283 ANC → ORD Jul 9, 00:20 UTCJul 9, 05:55 UTC5h 35m
2026-07-08 KAL283 ICN → ANC Jul 8, 15:00 UTCJul 8, 23:00 UTC8h 0m
2026-07-08 KAL228 - Jul 8, 07:10 UTCJul 8, 08:10 UTC1h 0m
2026-07-07 KAL228 - Jul 7, 16:50 UTCJul 8, 04:35 UTC11h 45m
2026-07-07 KAL207 - Jul 7, 03:45 UTCJul 7, 14:45 UTC11h 0m
2026-07-06 KAL316 - Jul 6, 14:25 UTCJul 6, 21:55 UTC7h 30m
2026-07-06 KAL568 - Jul 6, 05:45 UTCJul 6, 06:05 UTC20m
2026-07-05 KAL568 - Jul 5, 19:05 UTCJul 6, 04:50 UTC9h 45m
2026-07-05 KAL567 VIE → ZRH Jul 5, 15:30 UTCJul 5, 16:35 UTC1h 5m
2026-07-05 KAL567 - Jul 5, 02:35 UTCJul 5, 13:05 UTC10h 30m

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 HL8005 page for operator, model, and routing details .

Mode-S 71C005 frequently asked

What is Mode-S code 71C005?
71C005 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8005.
Where is Mode-S 71C005 registered?
Mode-S code 71C005 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 71C005 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C005, octal 34340005, decimal 7,454,725.
What flights does 71C005 operate?
Mode-S 71C005 has broadcast 20 distinct callsigns, including KAL249, KAL8250, KAL567, KAL542, KAL251.