Apparatus

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sensors Mode-S transponder

71C224

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

Currently assigned to HL8224 · BOEING 737-800

Hex
71C224
Octal
34341044
Decimal
7,455,268
Country
KR
Tail
HL8224
Type
B738
No current signal · last broadcast Jul 26, 14:35 UTC
Flights observed
483
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 14:35 UTC

Last known position

Most recent position reported by Mode-S 71C224.

Country allocation

The ICAO 24-bit address 71C224 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
JNA660 - 13 2026-07-19
JNA509 Jin Air 12 2026-07-20
JNA506 Jin Air 11 2026-07-20
JNA512 Jin Air 10 2026-07-20
JNA401 - 10 2026-07-19
JNA672 - 9 2026-07-13
JNA671 Jin Air 9 2026-07-19
JNA253 Jin Air 9 2026-07-23
JNA751 - 8 2026-06-26
JNA402 - 8 2026-07-19
JNA254 Jin Air 8 2026-07-23
JNA516 - 7 2026-06-20
JNA513 - 7 2026-07-07
JNA511 - 7 2026-06-20
JNA454 Jin Air 7 2026-07-20
JNA453 Jin Air 7 2026-07-20
JNA659 Jin Air 6 2026-07-21
JNA515 - 6 2026-06-16
JNA508 - 6 2026-06-20
JNA501 Jin Air 6 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JNA214 NRT → ICN Jul 26, 12:45 UTCJul 26, 14:35 UTC1h 50m
2026-07-26 JNA213 ICN → NRT Jul 26, 08:15 UTCJul 26, 10:10 UTC1h 55m
2026-07-26 JNA234 KIX → ICN Jul 26, 04:30 UTCJul 26, 05:55 UTC1h 25m
2026-07-26 JNA233 ICN → KIX Jul 26, 01:35 UTCJul 26, 03:00 UTC1h 25m
2026-07-25 JNA348 NGO → ICN Jul 25, 11:10 UTCJul 25, 12:40 UTC1h 30m
2026-07-25 JNA347 ICN → NGO Jul 25, 08:30 UTCJul 25, 09:45 UTC1h 15m
2026-07-24 JNA236 KIX → ICN Jul 24, 08:10 UTCJul 24, 09:30 UTC1h 20m
2026-07-24 JNA251 PUS → KIX Jul 24, 05:50 UTCJul 24, 07:00 UTC1h 10m
2026-07-24 JNA292 FUK → PUS Jul 24, 02:30 UTCJul 24, 02:55 UTC25m
2026-07-24 JNA291 PUS → FUK Jul 24, 00:20 UTCJul 24, 00:50 UTC30m
2026-07-23 JNA120 PQC → PUS Jul 23, 22:45 UTCJul 23, 23:05 UTC20m
2026-07-23 JNA119 - Jul 23, 11:35 UTCJul 23, 21:35 UTC10h 0m
2026-07-23 JNA254 KIX → PUS Jul 23, 08:45 UTCJul 23, 09:55 UTC1h 10m
2026-07-23 JNA253 PUS → KIX Jul 23, 06:25 UTCJul 23, 07:25 UTC1h 0m
2026-07-23 JNA222 NRT → PUS Jul 23, 02:15 UTCJul 23, 04:00 UTC1h 45m
2026-07-22 JNA201 ICN → NRT Jul 22, 22:50 UTCJul 23, 00:50 UTC2h 0m
2026-07-22 JNA916 GUM → ICN Jul 22, 10:20 UTCJul 22, 19:00 UTC8h 40m
2026-07-22 JNA233 ICN → KIX Jul 22, 02:00 UTCJul 22, 03:20 UTC1h 20m
2026-07-21 JNA061 PUS → ICN Jul 21, 13:15 UTCJul 21, 22:55 UTC9h 40m
2026-07-21 JNA568 CJU → PUS Jul 21, 10:35 UTCJul 21, 10:55 UTC20m
2026-07-21 JNA467 - Jul 21, 08:55 UTCJul 21, 09:10 UTC15m
2026-07-21 JNA468 CJU → KUV Jul 21, 07:25 UTCJul 21, 07:35 UTC10m
2026-07-21 JNA437 KPO → CJU Jul 21, 05:20 UTCJul 21, 05:30 UTC10m
2026-07-21 JNA436 - Jul 21, 03:50 UTCJul 21, 04:05 UTC15m
2026-07-21 JNA435 KPO → CJU Jul 21, 02:00 UTCJul 21, 02:15 UTC15m
2026-07-21 JNA659 GMP → KPO Jul 21, 00:15 UTCJul 21, 00:40 UTC25m
2026-07-20 JNA512 CJU → GMP Jul 20, 13:10 UTCJul 20, 13:50 UTC40m
2026-07-20 JNA453 KWJ → CJU Jul 20, 08:10 UTCJul 20, 08:20 UTC10m
2026-07-20 JNA454 CJU → KWJ Jul 20, 06:40 UTCJul 20, 07:00 UTC20m
2026-07-20 JNA509 GMP → CJU Jul 20, 04:20 UTCJul 20, 04:55 UTC35m
2026-07-20 JNA506 CJU → GMP Jul 20, 02:35 UTCJul 20, 03:10 UTC35m
2026-07-19 JNA671 GMP → RSU Jul 19, 23:10 UTCJul 19, 23:40 UTC30m
2026-07-19 JNA660 - Jul 19, 11:40 UTCJul 19, 12:05 UTC25m
2026-07-19 JNA438 - Jul 19, 10:00 UTCJul 19, 10:15 UTC15m
2026-07-19 JNA427 TAE → CJU Jul 19, 07:55 UTCJul 19, 08:10 UTC15m
2026-07-19 JNA428 CJU → TAE Jul 19, 05:30 UTCJul 19, 05:55 UTC25m
2026-07-19 JNA401 - Jul 19, 02:40 UTCJul 19, 03:10 UTC30m
2026-07-19 JNA402 - Jul 19, 01:00 UTCJul 19, 01:30 UTC30m
2026-07-18 JNA563 - Jul 18, 22:55 UTCJul 18, 23:10 UTC15m
2026-07-18 JNA922 PUS → PUS Jul 18, 12:15 UTCJul 18, 21:05 UTC8h 50m
2026-07-18 JNA742 - Jul 18, 09:50 UTCJul 18, 10:10 UTC20m
2026-07-18 JNA742 - Jul 18, 08:15 UTCJul 18, 08:40 UTC25m
2026-07-18 JNA741 PUS → RMQ Jul 18, 06:20 UTCJul 18, 06:30 UTC10m
2026-07-18 JNA741 PUS → RMQ Jul 18, 04:45 UTCJul 18, 05:05 UTC20m
2026-07-18 JNA292 - Jul 18, 02:29 UTCJul 18, 03:05 UTC36m
2026-07-18 JNA291 PUS → FUK Jul 18, 00:25 UTCJul 18, 00:45 UTC20m
2026-07-17 JNA120 - Jul 17, 22:49 UTCJul 17, 23:10 UTC20m
2026-07-17 JNA120 - Jul 17, 13:20 UTCJul 17, 21:39 UTC8h 20m
2026-07-17 JNA119 - Jul 17, 11:50 UTCJul 17, 12:10 UTC20m
2026-07-17 JNA564 - Jul 17, 08:15 UTCJul 17, 08:30 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 HL8224 page for operator, model, and routing details .

Mode-S 71C224 frequently asked

What is Mode-S code 71C224?
71C224 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8224.
Where is Mode-S 71C224 registered?
Mode-S code 71C224 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 71C224 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C224, octal 34341044, decimal 7,455,268.
What flights does 71C224 operate?
Mode-S 71C224 has broadcast 20 distinct callsigns, including JNA660, JNA509, JNA506, JNA512, JNA401.