sensors Mode-S transponder

71C026

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

Currently assigned to HL8026 · AIRBUS A-330-300

Hex
71C026
Octal
34340046
Decimal
7,454,758
Country
KR
Tail
HL8026
Type
A333
No current signal · last broadcast 12d ago
Flights observed
87
Distinct callsigns
20
Country
KR
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S 71C026.

Country allocation

The ICAO 24-bit address 71C026 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
KAL743 Korean Air 10 2026-05-19
KAL428 Korean Air 8 2026-05-29
KAL744 Korean Air 7 2026-05-20
KAL843 Korean Air 6 2026-05-20
KAL2011 Korean Air 6 2026-05-16
KAL831 Korean Air 4 2026-05-28
KAL427 Korean Air 4 2026-05-29
KAL868 Korean Air 3 2026-05-18
KAL867 Korean Air 3 2026-05-18
KAL844 Korean Air 3 2026-05-20
KAL442 Korean Air 3 2026-05-30
KAL441 Korean Air 3 2026-05-27
KAL2012 Korean Air 3 2026-05-16
KAL166 Korean Air 3 2026-05-17
KAL832 Korean Air 2 2026-05-29
KAL660 Korean Air 2 2026-05-24
KAL659 Korean Air 2 2026-05-23
KAL458 Korean Air 2 2026-05-25
KAL399F Korean Air 2 2026-06-02
KAL142 Korean Air 2 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 KAL399F ICN → SGN Jun 2, 07:40 UTCJun 2, 07:55 UTC15m
2026-06-02 KAL399F ICN → SGN Jun 2, 01:10 UTCJun 2, 06:10 UTC5h 0m
2026-06-01 KAL888 PVG → ICN Jun 1, 02:30 UTCJun 1, 07:35 UTC5h 5m
2026-05-30 KAL442 HAN → ICN May 30, 23:30 UTCMay 31, 09:05 UTC9h 35m
2026-05-30 KAL460 DAD → ICN May 30, 09:45 UTCMay 30, 20:30 UTC10h 45m
2026-05-30 KAL142 XIY → ICN May 30, 07:25 UTCMay 30, 07:45 UTC20m
2026-05-30 KAL141 ICN → XIY May 30, 00:45 UTCMay 30, 06:30 UTC5h 45m
2026-05-29 KAL428 KUL → ICN May 29, 19:05 UTCMay 29, 21:55 UTC2h 50m
2026-05-29 KAL428 KUL → ICN May 29, 16:05 UTCMay 29, 16:15 UTC10m
2026-05-29 KAL427 ICN → KUL May 29, 08:00 UTCMay 29, 13:55 UTC5h 55m
2026-05-29 KAL832 SHE → ICN May 29, 03:30 UTCMay 29, 03:50 UTC20m
2026-05-28 KAL831 ICN → SHE May 28, 23:30 UTCMay 28, 23:55 UTC25m
2026-05-28 KAL442 HAN → ICN May 28, 08:50 UTCMay 28, 09:25 UTC35m
2026-05-28 KAL442 HAN → ICN May 28, 05:30 UTCMay 28, 05:50 UTC20m
2026-05-27 KAL441 ICN → HAN May 27, 23:25 UTCMay 28, 03:05 UTC3h 40m
2026-05-27 KAL658 BKK → ICN May 27, 15:05 UTCMay 27, 20:05 UTC5h 0m
2026-05-27 KAL657 ICN → BKK May 27, 01:29 UTCMay 27, 06:29 UTC5h 0m
2026-05-26 KAL832 SHE → ICN May 26, 03:50 UTCMay 26, 04:10 UTC20m
2026-05-25 KAL831 ICN → SHE May 25, 23:35 UTCMay 26, 00:00 UTC25m
2026-05-25 KAL458 DAD → ICN May 25, 03:10 UTCMay 25, 13:25 UTC10h 15m
2026-05-24 KAL660 BKK → ICN May 24, 03:10 UTCMay 24, 08:30 UTC5h 20m
2026-05-23 KAL659 ICN → BKK May 23, 11:15 UTCMay 23, 16:10 UTC4h 55m
2026-05-22 KAL441 ICN → HAN May 22, 23:30 UTCMay 23, 09:05 UTC9h 34m
2026-05-20 KAL441 ICN → HAN May 20, 23:35 UTCMay 21, 09:10 UTC9h 35m
2026-05-20 KAL844 TAO → ICN May 20, 08:35 UTCMay 20, 09:10 UTC35m
2026-05-20 KAL843 ICN → TAO May 20, 05:20 UTCMay 20, 05:50 UTC30m
2026-05-20 KAL744 NGO → ICN May 20, 00:25 UTCMay 20, 01:55 UTC1h 30m
2026-05-19 KAL743 ICN → NGO May 19, 10:30 UTCMay 19, 11:45 UTC1h 15m
2026-05-19 KAL660 BKK → ICN May 19, 03:20 UTCMay 19, 08:30 UTC5h 10m
2026-05-18 KAL659 ICN → BKK May 18, 11:10 UTCMay 18, 16:10 UTC5h 0m
2026-05-18 KAL868 CAN → ICN May 18, 07:30 UTCMay 18, 08:05 UTC35m
2026-05-18 KAL868 CAN → ICN May 18, 05:05 UTCMay 18, 05:15 UTC10m
2026-05-18 KAL867 ICN → CAN May 18, 00:10 UTCMay 18, 00:35 UTC25m
2026-05-17 KAL166 WUH → ICN May 17, 00:05 UTCMay 17, 06:45 UTC6h 40m
2026-05-16 KAL2012 HKG → ICN May 16, 16:50 UTCMay 16, 19:45 UTC2h 55m
2026-05-16 KAL2011 ICN → HKG May 16, 14:16 UTCMay 16, 14:31 UTC15m
2026-05-16 KAL2011 ICN → HKG May 16, 11:21 UTCMay 16, 13:41 UTC2h 20m
2026-05-16 KAL844 TAO → ICN May 16, 08:11 UTCMay 16, 08:46 UTC35m
2026-05-16 KAL843 ICN → TAO May 16, 04:35 UTCMay 16, 05:00 UTC25m
2026-05-16 KAL744 NGO → ICN May 16, 00:30 UTCMay 16, 01:50 UTC1h 20m
2026-05-15 KAL743 ICN → NGO May 15, 10:25 UTCMay 15, 11:50 UTC1h 25m
2026-05-15 KAL2042 UBN → ICN May 15, 07:45 UTCMay 15, 08:05 UTC20m
2026-05-15 KAL2041 ICN → UBN May 15, 00:20 UTCMay 15, 00:35 UTC15m
2026-05-14 KAL2012 HKG → ICN May 14, 17:10 UTCMay 14, 20:10 UTC3h 0m
2026-05-14 KAL2011 ICN → HKG May 14, 14:25 UTCMay 14, 14:35 UTC10m
2026-05-14 KAL2011 ICN → HKG May 14, 11:15 UTCMay 14, 13:55 UTC2h 40m
2026-05-14 KAL868 CAN → ICN May 14, 08:30 UTCMay 14, 09:10 UTC40m
2026-05-14 KAL867 ICN → CAN May 14, 00:05 UTCMay 14, 00:50 UTC45m
2026-05-13 KAL2012 HKG → ICN May 13, 17:00 UTCMay 13, 20:00 UTC3h 0m
2026-05-13 KAL2011 ICN → HKG May 13, 13:55 UTCMay 13, 14:10 UTC15m

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 HL8026 page for operator, model, and routing details .

Mode-S 71C026 frequently asked

What is Mode-S code 71C026?
71C026 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8026.
Where is Mode-S 71C026 registered?
Mode-S code 71C026 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 71C026 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C026, octal 34340046, decimal 7,454,758.
What flights does 71C026 operate?
Mode-S 71C026 has broadcast 20 distinct callsigns, including KAL743, KAL428, KAL744, KAL843, KAL2011.