Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C713

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

Currently assigned to HL8713 · AIRBUS A-321neo

Hex
71C713
Octal
34343423
Decimal
7,456,531
Country
KR
Tail
HL8713
Type
A21N
No current signal · last broadcast 4h ago
Flights observed
349
Distinct callsigns
20
Country
KR
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 71C713.

Country allocation

The ICAO 24-bit address 71C713 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
KAL2005 - 16 2026-07-09
KAL852 - 11 2026-07-06
KAL2194 - 10 2026-07-10
KAL2193 - 10 2026-07-10
KAL2006 - 9 2026-07-09
KAL2131 - 8 2026-06-16
KAL1401 - 8 2026-06-23
KAL851 - 7 2026-07-05
KAL725 Korean Air 7 2026-05-20
KAL708 - 7 2026-07-13
KAL707 - 7 2026-07-13
KAL2132 - 7 2026-06-16
KAL2066 - 7 2026-07-06
KAL1406 - 7 2026-06-24
KAL2086 - 6 2026-06-17
KAL2015 - 6 2026-06-29
KAL146 Korean Air 6 2026-06-01
KAL875 Korean Air 5 2026-06-21
KAL792 - 5 2026-07-11
KAL791 - 5 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL2190 - Jul 14, 01:30 UTCJul 14, 02:55 UTC1h 25m
2026-07-13 KAL2189 - Jul 13, 22:50 UTCJul 14, 00:10 UTC1h 20m
2026-07-13 KAL708 NRT → ICN Jul 13, 10:15 UTCJul 13, 12:10 UTC1h 55m
2026-07-13 KAL707 ICN → NRT Jul 13, 06:05 UTCJul 13, 08:20 UTC2h 15m
2026-07-13 KAL2190 - Jul 13, 01:15 UTCJul 13, 02:40 UTC1h 25m
2026-07-12 KAL2189 - Jul 12, 22:50 UTCJul 13, 00:10 UTC1h 20m
2026-07-12 KAL708 - Jul 12, 10:10 UTCJul 12, 11:55 UTC1h 45m
2026-07-12 KAL707 ICN → NRT Jul 12, 06:01 UTCJul 12, 08:01 UTC2h 0m
2026-07-12 KAL2190 - Jul 12, 01:15 UTCJul 12, 02:40 UTC1h 25m
2026-07-11 KAL2189 - Jul 11, 22:45 UTCJul 12, 00:10 UTC1h 25m
2026-07-11 KAL418 ICN → ICN Jul 11, 10:20 UTCJul 11, 20:45 UTC10h 25m
2026-07-11 KAL792 - Jul 11, 06:01 UTCJul 11, 06:55 UTC55m
2026-07-11 KAL791 - Jul 11, 02:25 UTCJul 11, 03:05 UTC40m
2026-07-10 KAL690 - Jul 10, 22:20 UTCJul 10, 22:35 UTC15m
2026-07-10 KAL689 - Jul 10, 10:40 UTCJul 10, 19:00 UTC8h 20m
2026-07-10 KAL2194 - Jul 10, 04:15 UTCJul 10, 06:05 UTC1h 50m
2026-07-10 KAL2193 - Jul 10, 00:20 UTCJul 10, 02:25 UTC2h 5m
2026-07-09 KAL2006 HKG → ICN Jul 9, 10:10 UTCJul 9, 13:25 UTC3h 15m
2026-07-09 KAL2005 - Jul 9, 04:50 UTCJul 9, 07:50 UTC3h 0m
2026-07-08 KAL486 ICN → ICN Jul 8, 10:30 UTCJul 8, 23:10 UTC12h 40m
2026-07-06 KAL852 - Jul 6, 13:00 UTCJul 6, 13:20 UTC20m
2026-07-06 KAL852 - Jul 6, 11:55 UTCJul 6, 12:05 UTC10m
2026-07-06 KAL2065 - Jul 6, 07:05 UTCJul 6, 07:40 UTC35m
2026-07-06 KAL2066 - Jul 6, 04:10 UTCJul 6, 04:45 UTC35m
2026-07-06 KAL2066 - Jul 6, 03:15 UTCJul 6, 03:25 UTC10m
2026-07-05 KAL851 - Jul 5, 23:35 UTCJul 5, 23:55 UTC20m
2026-07-05 KAL162 - Jul 5, 18:55 UTCJul 5, 19:15 UTC20m
2026-07-05 KAL161 - Jul 5, 09:55 UTCJul 5, 10:20 UTC25m
2026-07-05 KAL102 - Jul 5, 06:30 UTCJul 5, 07:10 UTC40m
2026-07-05 KAL101 - Jul 5, 01:50 UTCJul 5, 02:10 UTC20m
2026-07-04 KAL689 ICN → ICN Jul 4, 10:35 UTCJul 4, 22:40 UTC12h 5m
2026-07-04 KAL792 - Jul 4, 06:00 UTCJul 4, 07:00 UTC1h 0m
2026-07-04 KAL791 - Jul 4, 02:25 UTCJul 4, 03:05 UTC40m
2026-07-03 KAL772 - Jul 3, 12:10 UTCJul 3, 14:35 UTC2h 25m
2026-07-03 KAL771 ICN → CTS Jul 3, 08:20 UTCJul 3, 10:40 UTC2h 20m
2026-07-03 KAL2148 - Jul 3, 04:15 UTCJul 3, 06:10 UTC1h 55m
2026-07-03 KAL2147 - Jul 3, 02:15 UTCJul 3, 02:35 UTC20m
2026-07-03 KAL2147 - Jul 3, 00:50 UTCJul 3, 01:25 UTC35m
2026-07-02 KAL626 - Jul 2, 17:25 UTCJul 2, 20:55 UTC3h 30m
2026-07-02 KAL625 ICN → MNL Jul 2, 11:50 UTCJul 2, 15:25 UTC3h 35m
2026-07-02 KAL874 - Jul 2, 07:30 UTCJul 2, 07:55 UTC25m
2026-07-02 KAL873 - Jul 2, 04:35 UTCJul 2, 04:55 UTC20m
2026-07-01 KAL417 ICN → ICN Jul 1, 09:45 UTCJul 1, 20:40 UTC10h 55m
2026-07-01 KAL102 - Jul 1, 06:35 UTCJul 1, 06:55 UTC20m
2026-07-01 KAL101 - Jul 1, 02:00 UTCJul 1, 02:25 UTC25m
2026-06-30 KAL458 ICN → ICN Jun 30, 03:10 UTCJun 30, 13:35 UTC10h 25m
2026-06-30 KAL656 - Jun 30, 00:35 UTCJun 30, 01:04 UTC30m
2026-06-29 KAL656 - Jun 29, 19:54 UTCJun 29, 23:25 UTC3h 30m
2026-06-29 KAL655 ICN → BKK Jun 29, 12:29 UTCJun 29, 17:40 UTC5h 10m
2026-06-29 KAL2016 - Jun 29, 06:29 UTCJun 29, 09:40 UTC3h 10m

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 HL8713 page for operator, model, and routing details .

Mode-S 71C713 frequently asked

What is Mode-S code 71C713?
71C713 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8713.
Where is Mode-S 71C713 registered?
Mode-S code 71C713 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 71C713 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C713, octal 34343423, decimal 7,456,531.
What flights does 71C713 operate?
Mode-S 71C713 has broadcast 20 distinct callsigns, including KAL2005, KAL852, KAL2194, KAL2193, KAL2006.