Apparatus

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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 Jul 26, 19:30 UTC
Flights observed
341
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 19:30 UTC

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
KAL738 - 10 2026-07-19
KAL737 Korean Air 10 2026-07-19
KAL770 - 9 2026-07-19
KAL769 - 8 2026-07-19
KAL485 Korean Air 8 2026-05-08
KAL2016 Korean Air 8 2026-07-24
KAL626 Korean Air 7 2026-07-24
KAL625 Korean Air 7 2026-07-24
KAL486 Korean Air 7 2026-07-25
KAL2086 - 7 2026-07-14
KAL2005 - 7 2026-07-02
KAL1406 - 7 2026-07-18
KAL864 Korean Air 6 2026-07-26
KAL705 - 6 2026-06-22
KAL2198 - 6 2026-06-21
KAL2173 - 6 2026-07-15
KAL2172 - 6 2026-07-15
KAL1407 - 6 2026-07-13
KAL1401 Korean Air 6 2026-07-18
KAL712 - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL864 PEK → ICN Jul 26, 18:50 UTCJul 26, 19:25 UTC35m
2026-07-26 KAL864 PEK → ICN Jul 26, 17:50 UTCJul 26, 18:00 UTC10m
2026-07-26 KAL863 ICN → PEK Jul 26, 11:15 UTCJul 26, 11:45 UTC30m
2026-07-26 KAL855 ICN → PEK Jul 26, 02:00 UTCJul 26, 08:00 UTC6h 1m
2026-07-25 KAL486 PQC → ICN Jul 25, 11:10 UTCJul 25, 23:25 UTC12h 15m
2026-07-24 KAL626 CGK → ICN Jul 24, 17:25 UTCJul 24, 21:10 UTC3h 45m
2026-07-24 KAL625 ICN → CGK Jul 24, 11:55 UTCJul 24, 15:30 UTC3h 35m
2026-07-24 KAL2016 MFM → ICN Jul 24, 06:35 UTCJul 24, 09:50 UTC3h 15m
2026-07-24 KAL2015 ICN → MFM Jul 24, 01:35 UTCJul 24, 04:40 UTC3h 5m
2026-07-23 KAL486 PQC → ICN Jul 23, 10:35 UTCJul 23, 23:10 UTC12h 35m
2026-07-23 KAL2194 AOJ → ICN Jul 23, 04:30 UTCJul 23, 06:15 UTC1h 45m
2026-07-23 KAL2193 ICN → AOJ Jul 23, 00:40 UTCJul 23, 02:40 UTC2h 0m
2026-07-22 KAL714 NRT → ICN Jul 22, 12:25 UTCJul 22, 14:25 UTC2h 0m
2026-07-21 KAL690 PNH → ICN Jul 21, 10:20 UTCJul 21, 21:45 UTC11h 25m
2026-07-21 KAL142 XIY → ICN Jul 21, 07:20 UTCJul 21, 07:40 UTC20m
2026-07-21 KAL141 - Jul 21, 00:50 UTCJul 21, 06:35 UTC5h 45m
2026-07-20 KAL876 - Jul 20, 13:05 UTCJul 20, 13:45 UTC40m
2026-07-20 KAL875 PUS → PVG Jul 20, 09:50 UTCJul 20, 10:15 UTC25m
2026-07-20 KAL856 - Jul 20, 07:10 UTCJul 20, 07:35 UTC25m
2026-07-20 KAL856 - Jul 20, 06:00 UTCJul 20, 06:20 UTC20m
2026-07-20 KAL855 - Jul 20, 02:10 UTCJul 20, 02:40 UTC30m
2026-07-19 KAL738 KIX → ICN Jul 19, 17:25 UTCJul 19, 18:40 UTC1h 15m
2026-07-19 KAL737 ICN → KIX Jul 19, 12:10 UTCJul 19, 13:35 UTC1h 25m
2026-07-19 KAL770 - Jul 19, 07:50 UTCJul 19, 10:15 UTC2h 25m
2026-07-19 KAL769 - Jul 19, 03:55 UTCJul 19, 06:25 UTC2h 30m
2026-07-18 KAL1406 PUS → ICN Jul 18, 23:45 UTCJul 19, 00:30 UTC45m
2026-07-18 KAL1401 ICN → PUS Jul 18, 21:50 UTCJul 18, 22:30 UTC40m
2026-07-18 KAL738 KIX → ICN Jul 18, 17:20 UTCJul 18, 18:45 UTC1h 25m
2026-07-18 KAL737 ICN → KIX Jul 18, 12:00 UTCJul 18, 13:25 UTC1h 25m
2026-07-18 KAL712 - Jul 18, 08:35 UTCJul 18, 10:35 UTC2h 0m
2026-07-18 KAL711 ICN → NRT Jul 18, 04:15 UTCJul 18, 06:10 UTC1h 55m
2026-07-17 KAL486 PQC → ICN Jul 17, 10:35 UTCJul 17, 23:25 UTC12h 50m
2026-07-16 KAL2180 - Jul 16, 10:59 UTCJul 16, 11:54 UTC55m
2026-07-16 KAL2179 - Jul 16, 08:10 UTCJul 16, 09:05 UTC55m
2026-07-16 KAL2148 - Jul 16, 04:35 UTCJul 16, 06:20 UTC1h 45m
2026-07-16 KAL2147 - Jul 16, 01:15 UTCJul 16, 02:50 UTC1h 35m
2026-07-15 KAL2174 UKB → ICN Jul 15, 10:00 UTCJul 15, 11:20 UTC1h 20m
2026-07-15 KAL2173 ICN → UKB Jul 15, 07:10 UTCJul 15, 08:20 UTC1h 10m
2026-07-15 KAL2172 UKB → ICN Jul 15, 03:00 UTCJul 15, 04:15 UTC1h 15m
2026-07-15 KAL2171 ICN → UKB Jul 15, 00:20 UTCJul 15, 01:40 UTC1h 20m
2026-07-14 KAL864 - Jul 14, 18:40 UTCJul 14, 19:05 UTC25m
2026-07-14 KAL864 - Jul 14, 17:45 UTCJul 14, 17:55 UTC10m
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

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 Jul 26, 19:30 UTC.
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 KAL738, KAL737, KAL770, KAL769, KAL485.