Apparatus

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sensors Mode-S transponder

71C225

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

Currently assigned to HL8225 · BOEING 737-800

Hex
71C225
Octal
34341045
Decimal
7,455,269
Country
KR
Tail
HL8225
Type
B738
No current signal · last broadcast Jul 26, 19:30 UTC
Flights observed
504
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 19:30 UTC

Last known position

Most recent position reported by Mode-S 71C225.

Country allocation

The ICAO 24-bit address 71C225 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
JNA223 Jin Air 12 2026-07-24
JNA751 Jin Air 9 2026-07-24
JNA231 - 9 2026-07-16
JNA132 Jin Air 9 2026-07-21
JNA131 - 9 2026-07-21
JNA713 - 8 2026-07-05
JNA474 - 8 2026-07-16
JNA473 - 8 2026-07-16
JNA472 - 8 2026-07-18
JNA471 - 8 2026-07-18
JNA224 Jin Air 8 2026-07-24
JNA752 Jin Air 7 2026-07-24
JNA672 - 7 2026-07-03
JNA660 - 7 2026-07-11
JNA505 - 7 2026-07-12
JNA221 Jin Air 7 2026-07-24
JNA202 Jin Air 7 2026-07-25
JNA742 - 6 2026-07-17
JNA516 - 6 2026-07-18
JNA511 - 6 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JNA916 GUM → ICN Jul 26, 09:40 UTCJul 26, 19:25 UTC9h 45m
2026-07-26 JNA206 NRT → ICN Jul 26, 04:55 UTCJul 26, 06:50 UTC1h 56m
2026-07-26 JNA205 ICN → NRT Jul 26, 01:20 UTCJul 26, 03:15 UTC1h 55m
2026-07-25 JNA087 ICN → CXR Jul 25, 12:50 UTCJul 25, 23:30 UTC10h 40m
2026-07-25 JNA266 FUK → ICN Jul 25, 09:20 UTCJul 25, 10:15 UTC55m
2026-07-25 JNA265 ICN → FUK Jul 25, 06:50 UTCJul 25, 07:55 UTC1h 5m
2026-07-25 JNA202 NRT → ICN Jul 25, 02:35 UTCJul 25, 04:35 UTC2h 0m
2026-07-24 JNA221 ICN → FUK Jul 24, 23:10 UTCJul 25, 01:00 UTC1h 50m
2026-07-24 JNA752 TPE → PUS Jul 24, 19:10 UTCJul 24, 21:15 UTC2h 5m
2026-07-24 JNA751 PUS → TPE Jul 24, 15:10 UTCJul 24, 15:55 UTC45m
2026-07-24 JNA751 PUS → TPE Jul 24, 13:35 UTCJul 24, 13:55 UTC20m
2026-07-24 JNA224 NRT → PUS Jul 24, 08:40 UTCJul 24, 10:25 UTC1h 45m
2026-07-24 JNA223 PUS → NRT Jul 24, 05:35 UTCJul 24, 07:20 UTC1h 45m
2026-07-24 JNA222 NRT → PUS Jul 24, 02:30 UTCJul 24, 04:15 UTC1h 45m
2026-07-23 JNA201 ICN → NRT Jul 23, 22:55 UTCJul 24, 00:50 UTC1h 55m
2026-07-23 JNA214 NRT → ICN Jul 23, 11:45 UTCJul 23, 13:45 UTC2h 0m
2026-07-23 JNA213 ICN → NRT Jul 23, 08:15 UTCJul 23, 10:10 UTC1h 55m
2026-07-23 JNA346 NGO → ICN Jul 23, 01:35 UTCJul 23, 03:05 UTC1h 30m
2026-07-22 JNA345 ICN → NGO Jul 22, 22:50 UTCJul 23, 00:10 UTC1h 20m
2026-07-22 JNA272 - Jul 22, 11:10 UTCJul 22, 12:00 UTC50m
2026-07-22 JNA342 OKA → ICN Jul 22, 04:55 UTCJul 22, 05:05 UTC10m
2026-07-22 JNA341 ICN → OKA Jul 22, 01:15 UTCJul 22, 03:00 UTC1h 45m
2026-07-21 JNA132 BKI → ICN Jul 21, 17:10 UTCJul 21, 22:15 UTC5h 5m
2026-07-21 JNA131 - Jul 21, 10:45 UTCJul 21, 15:45 UTC5h 0m
2026-07-21 JNA342 OKA → ICN Jul 21, 05:05 UTCJul 21, 06:50 UTC1h 45m
2026-07-21 JNA341 - Jul 21, 01:15 UTCJul 21, 02:55 UTC1h 40m
2026-07-20 JNA132 BKI → ICN Jul 20, 17:00 UTCJul 20, 21:55 UTC4h 55m
2026-07-20 JNA131 - Jul 20, 10:35 UTCJul 20, 15:15 UTC4h 40m
2026-07-20 JNA234 KIX → ICN Jul 20, 04:35 UTCJul 20, 06:00 UTC1h 25m
2026-07-20 JNA233 ICN → KIX Jul 20, 01:40 UTCJul 20, 03:25 UTC1h 45m
2026-07-19 JNA032 PUS → ICN Jul 19, 13:10 UTCJul 19, 22:35 UTC9h 25m
2026-07-19 JNA568 CJU → PUS Jul 19, 10:55 UTCJul 19, 11:15 UTC20m
2026-07-19 JNA467 - Jul 19, 08:55 UTCJul 19, 09:05 UTC10m
2026-07-19 JNA468 - Jul 19, 07:30 UTCJul 19, 07:40 UTC10m
2026-07-19 JNA695F PUS → CJU Jul 19, 05:10 UTCJul 19, 05:25 UTC15m
2026-07-19 JNA482 - Jul 19, 03:50 UTCJul 19, 04:15 UTC25m
2026-07-19 JNA693F GMP → CJU Jul 19, 01:20 UTCJul 19, 01:55 UTC35m
2026-07-18 JNA514 CJU → GMP Jul 18, 12:45 UTCJul 18, 13:20 UTC35m
2026-07-18 JNA515 - Jul 18, 10:35 UTCJul 18, 11:05 UTC30m
2026-07-18 JNA516 - Jul 18, 08:40 UTCJul 18, 09:25 UTC45m
2026-07-18 JNA511 - Jul 18, 06:35 UTCJul 18, 07:10 UTC35m
2026-07-18 JNA508 - Jul 18, 04:45 UTCJul 18, 05:30 UTC45m
2026-07-18 JNA471 - Jul 18, 02:29 UTCJul 18, 03:05 UTC36m
2026-07-18 JNA472 - Jul 18, 00:25 UTCJul 18, 01:00 UTC35m
2026-07-17 JNA561 - Jul 17, 22:40 UTCJul 17, 22:55 UTC15m
2026-07-17 JNA782 UBN → PUS Jul 17, 12:50 UTCJul 17, 21:20 UTC8h 30m
2026-07-17 JNA742 - Jul 17, 09:30 UTCJul 17, 09:55 UTC25m
2026-07-17 JNA742 - Jul 17, 08:00 UTCJul 17, 08:25 UTC25m
2026-07-17 JNA741 PUS → RMQ Jul 17, 04:49 UTCJul 17, 06:40 UTC1h 50m
2026-07-17 JNA252 - Jul 17, 01:55 UTCJul 17, 02:54 UTC1h 0m

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 HL8225 page for operator, model, and routing details .

Mode-S 71C225 frequently asked

What is Mode-S code 71C225?
71C225 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8225.
Where is Mode-S 71C225 registered?
Mode-S code 71C225 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 71C225 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 71C225, octal 34341045, decimal 7,455,269.
What flights does 71C225 operate?
Mode-S 71C225 has broadcast 20 distinct callsigns, including JNA223, JNA751, JNA231, JNA132, JNA131.