Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C390

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

Currently assigned to HL8390 · BOEING 787-9 Dreamliner

Hex
71C390
Octal
34341620
Decimal
7,455,632
Country
KR
Tail
HL8390
Type
B789
No current signal · last broadcast 1h ago
Flights observed
97
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 71C390.

Country allocation

The ICAO 24-bit address 71C390 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
KAL480 Korean Air 11 2026-05-20
KAL032 Korean Air 10 2026-05-26
KAL031 Korean Air 10 2026-05-26
KAL498 Korean Air 6 2026-05-22
KAL479 Korean Air 5 2026-05-03
KAL411 Korean Air 5 2026-05-27
KAL647 Korean Air 4 2026-05-23
KAL431 Korean Air 4 2026-05-30
KAL412 Korean Air 4 2026-05-27
KAL914 Korean Air 3 2026-05-20
KAL913 Korean Air 3 2026-05-19
KAL648 Korean Air 3 2026-05-24
KAL497 Korean Air 3 2026-05-22
KAL468 Korean Air 3 2026-05-17
KAL956 Korean Air 2 2026-05-30
KAL955 Korean Air 2 2026-05-29
KAL922 Korean Air 2 2026-05-10
KAL921 Korean Air 2 2026-05-10
KAL887 Korean Air 2 2026-04-15
KAL677 Korean Air 2 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KAL431 ICN → DPS May 30, 07:25 UTCMay 30, 10:00 UTC2h 35m
2026-05-30 KAL956 IST → ICN May 30, 03:50 UTCMay 30, 04:10 UTC20m
2026-05-29 KAL956 IST → ICN May 29, 19:00 UTCMay 29, 20:50 UTC1h 50m
2026-05-29 KAL955 ICN → IST May 29, 16:25 UTCMay 29, 16:45 UTC20m
2026-05-29 KAL955 ICN → IST May 29, 05:35 UTCMay 29, 15:50 UTC10h 15m
2026-05-27 KAL412 AKL → ICN May 27, 23:25 UTCMay 28, 11:15 UTC11h 50m
2026-05-27 KAL411 ICN → AKL May 27, 09:30 UTCMay 27, 20:05 UTC10h 35m
2026-05-26 KAL032 DFW → ICN May 26, 17:09 UTCMay 27, 07:05 UTC13h 56m
2026-05-26 KAL031 ICN → DFW May 26, 00:54 UTCMay 26, 13:19 UTC12h 25m
2026-05-24 KAL412 AKL → ICN May 24, 23:20 UTCMay 25, 10:40 UTC11h 20m
2026-05-24 KAL411 ICN → AKL May 24, 09:20 UTCMay 24, 20:20 UTC11h 0m
2026-05-24 KAL648 SIN → ICN May 24, 02:40 UTCMay 24, 05:40 UTC3h 0m
2026-05-23 KAL647 ICN → SIN May 23, 14:50 UTCMay 23, 20:25 UTC5h 35m
2026-05-23 KAL472 SGN → ICN May 23, 01:05 UTCMay 23, 12:35 UTC11h 30m
2026-05-22 KAL498 DEL → ICN May 22, 19:50 UTCMay 22, 20:15 UTC25m
2026-05-22 KAL498 DEL → ICN May 22, 13:50 UTCMay 22, 15:35 UTC1h 45m
2026-05-22 KAL497 ICN → DEL May 22, 03:45 UTCMay 22, 11:00 UTC7h 15m
2026-05-20 KAL480 SGN → ICN May 20, 11:20 UTCMay 21, 05:40 UTC18h 20m
2026-05-20 KAL914 MAD → ICN May 20, 06:35 UTCMay 20, 07:05 UTC30m
2026-05-19 KAL914 MAD → ICN May 19, 18:35 UTCMay 20, 05:40 UTC11h 6m
2026-05-19 KAL913 ICN → MAD May 19, 02:40 UTCMay 19, 15:45 UTC13h 5m
2026-05-19 KAL913 ICN → MAD May 19, 01:25 UTCMay 19, 01:40 UTC15m
2026-05-18 KAL498 DEL → ICN May 18, 19:30 UTCMay 18, 19:50 UTC20m
2026-05-18 KAL498 DEL → ICN May 18, 13:45 UTCMay 18, 15:30 UTC1h 45m
2026-05-18 KAL497 ICN → DEL May 18, 03:30 UTCMay 18, 10:40 UTC7h 10m
2026-05-17 KAL468 CXR → ICN May 17, 11:30 UTCMay 17, 22:30 UTC11h 0m
2026-05-16 KAL032 DFW → ICN May 16, 17:30 UTCMay 17, 07:35 UTC14h 5m
2026-05-16 KAL031 ICN → DFW May 16, 00:55 UTCMay 16, 13:21 UTC12h 26m
2026-05-12 KAL914 MAD → ICN May 12, 18:50 UTCMay 12, 21:40 UTC2h 50m
2026-05-12 KAL913 ICN → MAD May 12, 07:10 UTCMay 12, 16:20 UTC9h 10m
2026-05-10 KAL922 LIS → ICN May 10, 21:59 UTCMay 11, 02:55 UTC4h 55m
2026-05-10 KAL921 ICN → LIS May 10, 04:09 UTCMay 10, 19:15 UTC15h 5m
2026-05-08 KAL922 LIS → ICN May 8, 22:10 UTCMay 9, 09:25 UTC11h 15m
2026-05-08 KAL921 ICN → LIS May 8, 05:54 UTCMay 8, 19:45 UTC13h 50m
2026-05-06 KAL480 SGN → ICN May 6, 11:20 UTCMay 7, 05:50 UTC18h 29m
2026-05-05 KAL412 AKL → ICN May 5, 00:50 UTCMay 5, 12:05 UTC11h 15m
2026-05-04 KAL411 ICN → AKL May 4, 09:20 UTCMay 4, 20:15 UTC10h 56m
2026-05-03 KAL479 ICN → SGN May 3, 11:55 UTCMay 4, 05:05 UTC17h 10m
2026-05-02 KAL480 SGN → ICN May 2, 11:45 UTCMay 3, 05:20 UTC17h 34m
2026-05-01 KAL032 DFW → ICN May 1, 17:15 UTCMay 2, 07:40 UTC14h 25m
2026-05-01 KAL031 ICN → DFW May 1, 01:05 UTCMay 1, 13:05 UTC12h 0m
2026-04-30 KAL412 AKL → ICN Apr 30, 10:10 UTCApr 30, 11:05 UTC55m
2026-04-29 KAL411 ICN → AKL Apr 29, 19:45 UTCApr 29, 20:05 UTC20m
2026-04-29 KAL411 ICN → AKL Apr 29, 09:25 UTCApr 29, 10:10 UTC45m
2026-04-29 KAL648 SIN → ICN Apr 29, 02:55 UTCApr 29, 05:40 UTC2h 45m
2026-04-28 KAL647 ICN → SIN Apr 28, 20:20 UTCApr 28, 20:45 UTC25m
2026-04-28 KAL647 ICN → SIN Apr 28, 14:55 UTCApr 28, 17:45 UTC2h 50m
2026-04-27 KAL408 BNE → ICN Apr 27, 22:55 UTCApr 28, 08:20 UTC9h 25m
2026-04-27 KAL407 ICN → BNE Apr 27, 11:40 UTCApr 27, 20:25 UTC8h 45m
2026-04-26 KAL032 DFW → ICN Apr 26, 17:05 UTCApr 27, 07:40 UTC14h 35m

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 HL8390 page for operator, model, and routing details .

Mode-S 71C390 frequently asked

What is Mode-S code 71C390?
71C390 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8390.
Where is Mode-S 71C390 registered?
Mode-S code 71C390 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 71C390 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C390, octal 34341620, decimal 7,455,632.
What flights does 71C390 operate?
Mode-S 71C390 has broadcast 20 distinct callsigns, including KAL480, KAL032, KAL031, KAL498, KAL479.