Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C530

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

Currently assigned to HL8530 · AIRBUS A-321neo

Hex
71C530
Octal
34342460
Decimal
7,456,048
Country
KR
Tail
HL8530
Type
A21N
No current signal · last broadcast 2h ago
Flights observed
299
Distinct callsigns
20
Country
KR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 71C530.

Country allocation

The ICAO 24-bit address 71C530 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
KAL770 Korean Air 8 2026-06-05
KAL738 Korean Air 8 2026-06-15
KAL737 Korean Air 8 2026-06-15
KAL485 Korean Air 8 2026-05-08
KAL769 Korean Air 7 2026-06-05
KAL2086 - 7 2026-07-14
KAL2016 - 7 2026-07-07
KAL2005 - 7 2026-07-02
KAL705 - 6 2026-06-22
KAL626 - 6 2026-07-12
KAL625 - 6 2026-07-12
KAL2198 - 6 2026-06-21
KAL1407 - 6 2026-07-13
KAL1406 - 6 2026-07-04
KAL708 - 5 2026-05-23
KAL707 - 5 2026-05-23
KAL706 - 5 2026-06-23
KAL656 - 5 2026-06-26
KAL655 - 5 2026-06-26
KAL2197 - 5 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL863 - Jul 14, 11:15 UTCJul 14, 11:40 UTC25m
2026-07-14 KAL1410 PUS → ICN Jul 14, 07:35 UTCJul 14, 08:25 UTC50m
2026-07-14 KAL2086 - Jul 14, 05:35 UTCJul 14, 05:55 UTC20m
2026-07-14 KAL2086 - Jul 14, 04:10 UTCJul 14, 04:35 UTC25m
2026-07-14 KAL2085 PUS → TPE Jul 14, 00:25 UTCJul 14, 02:20 UTC1h 55m
2026-07-13 KAL1407 ICN → PUS Jul 13, 09:50 UTCJul 13, 10:30 UTC40m
2026-07-13 KAL1408 PUS → ICN Jul 13, 01:55 UTCJul 13, 02:40 UTC45m
2026-07-12 KAL1403 ICN → PUS Jul 12, 23:35 UTCJul 13, 00:15 UTC40m
2026-07-12 KAL626 - Jul 12, 17:40 UTCJul 12, 21:15 UTC3h 35m
2026-07-12 KAL625 ICN → MNL Jul 12, 12:01 UTCJul 12, 15:45 UTC3h 45m
2026-07-12 KAL1410 PUS → ICN Jul 12, 07:45 UTCJul 12, 08:25 UTC40m
2026-07-12 KAL2086 - Jul 12, 05:50 UTCJul 12, 06:10 UTC20m
2026-07-12 KAL2086 - Jul 12, 04:15 UTCJul 12, 04:40 UTC25m
2026-07-12 KAL2085 PUS → TPE Jul 12, 00:10 UTCJul 12, 02:10 UTC2h 0m
2026-07-11 KAL1407 ICN → PUS Jul 11, 09:35 UTCJul 11, 10:20 UTC45m
2026-07-10 KAL458 - Jul 10, 12:55 UTCJul 10, 13:25 UTC30m
2026-07-10 KAL457 - Jul 10, 03:05 UTCJul 10, 10:35 UTC7h 30m
2026-07-09 KAL726 KIX → ICN Jul 9, 09:30 UTCJul 9, 10:55 UTC1h 25m
2026-07-09 KAL725 ICN → KIX Jul 9, 06:25 UTCJul 9, 07:50 UTC1h 25m
2026-07-09 KAL2190 - Jul 9, 01:25 UTCJul 9, 03:00 UTC1h 35m
2026-07-08 KAL2189 - Jul 8, 22:45 UTCJul 9, 00:10 UTC1h 25m
2026-07-08 KAL2174 UKB → ICN Jul 8, 09:55 UTCJul 8, 11:20 UTC1h 25m
2026-07-08 KAL2173 ICN → UKB Jul 8, 07:00 UTCJul 8, 08:25 UTC1h 25m
2026-07-08 KAL2172 UKB → ICN Jul 8, 03:00 UTCJul 8, 04:20 UTC1h 20m
2026-07-08 KAL2171 ICN → UKB Jul 8, 00:25 UTCJul 8, 01:45 UTC1h 20m
2026-07-07 KAL626 - Jul 7, 17:30 UTCJul 7, 21:10 UTC3h 40m
2026-07-07 KAL625 - Jul 7, 11:45 UTCJul 7, 15:15 UTC3h 30m
2026-07-07 KAL2016 - Jul 7, 07:05 UTCJul 7, 10:00 UTC2h 55m
2026-07-07 KAL2015 - Jul 7, 01:30 UTCJul 7, 04:40 UTC3h 10m
2026-07-06 KAL690 - Jul 6, 10:30 UTCJul 6, 22:20 UTC11h 50m
2026-07-06 KAL856 - Jul 6, 08:15 UTCJul 6, 08:35 UTC20m
2026-07-06 KAL855 - Jul 6, 03:30 UTCJul 6, 03:55 UTC25m
2026-07-04 KAL2180 - Jul 4, 10:15 UTCJul 4, 11:10 UTC55m
2026-07-04 KAL2179 - Jul 4, 07:35 UTCJul 4, 08:35 UTC1h 0m
2026-07-04 KAL1406 PUS → ICN Jul 4, 00:00 UTCJul 4, 00:45 UTC45m
2026-07-03 KAL1407 ICN → PUS Jul 3, 09:40 UTCJul 3, 10:25 UTC45m
2026-07-03 KAL2190 - Jul 3, 01:25 UTCJul 3, 03:00 UTC1h 35m
2026-07-02 KAL2189 - Jul 2, 22:55 UTCJul 3, 00:05 UTC1h 10m
2026-07-02 KAL2006 - Jul 2, 10:15 UTCJul 2, 13:15 UTC3h 0m
2026-07-02 KAL2005 ICN → HKG Jul 2, 05:05 UTCJul 2, 08:15 UTC3h 10m
2026-07-02 KAL744 - Jul 2, 00:35 UTCJul 2, 02:15 UTC1h 40m
2026-07-01 KAL743 - Jul 1, 10:30 UTCJul 1, 11:45 UTC1h 15m
2026-07-01 KAL1408 PUS → ICN Jul 1, 01:45 UTCJul 1, 02:25 UTC40m
2026-06-30 KAL1403 ICN → PUS Jun 30, 23:45 UTCJul 1, 00:25 UTC40m
2026-06-29 KAL626 MNL → ICN Jun 29, 17:19 UTCJun 29, 20:54 UTC3h 35m
2026-06-29 KAL625 - Jun 29, 11:45 UTCJun 29, 15:09 UTC3h 25m
2026-06-28 KAL2174 UKB → ICN Jun 28, 10:04 UTCJun 28, 11:25 UTC1h 20m
2026-06-28 KAL2173 ICN → UKB Jun 28, 07:09 UTCJun 28, 08:34 UTC1h 25m
2026-06-28 KAL2172 UKB → ICN Jun 28, 03:05 UTCJun 28, 04:25 UTC1h 20m
2026-06-28 KAL2171 ICN → UKB Jun 28, 00:25 UTCJun 28, 01:40 UTC1h 15m

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 HL8530 page for operator, model, and routing details .

Mode-S 71C530 frequently asked

What is Mode-S code 71C530?
71C530 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8530.
Where is Mode-S 71C530 registered?
Mode-S code 71C530 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 71C530 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C530, octal 34342460, decimal 7,456,048.
What flights does 71C530 operate?
Mode-S 71C530 has broadcast 20 distinct callsigns, including KAL770, KAL738, KAL737, KAL485, KAL769.