Apparatus

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sensors Mode-S transponder

71C245

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

Currently assigned to HL8245 · BOEING 737-800

Hex
71C245
Octal
34341105
Decimal
7,455,301
Country
KR
Tail
HL8245
Type
B738
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
480
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 71C245.

Country allocation

The ICAO 24-bit address 71C245 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
JNA671 Jin Air 11 2026-07-24
JNA509 Jin Air 11 2026-07-25
JNA506 Jin Air 11 2026-07-25
JNA224 Jin Air 11 2026-07-23
JNA223 Jin Air 10 2026-07-23
JNA201 Jin Air 9 2026-06-23
JNA752 - 7 2026-07-06
JNA672 - 7 2026-07-04
JNA660 Jin Air 7 2026-07-25
JNA376 Jin Air 7 2026-07-23
JNA252 - 7 2026-07-14
JNA236 - 7 2026-07-12
JNA231 - 7 2026-07-13
JNA222 - 7 2026-06-24
JNA221 - 7 2026-07-15
JNA202 - 7 2026-07-16
JNA751 - 6 2026-07-06
JNA428 Jin Air 6 2026-07-24
JNA375 Jin Air 6 2026-07-22
JNA111 Jin Air 6 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JNA022 BKK → PUS Jul 26, 17:45 UTCJul 26, 21:10 UTC3h 25m
2026-07-26 JNA021 PUS → BKK Jul 26, 10:50 UTCJul 26, 15:55 UTC5h 5m
2026-07-26 JNA564 CJU → PUS Jul 26, 08:35 UTCJul 26, 08:50 UTC15m
2026-07-26 JNA567 - Jul 26, 06:15 UTCJul 26, 06:30 UTC15m
2026-07-26 JNA562 CJU → PUS Jul 26, 04:25 UTCJul 26, 04:45 UTC20m
2026-07-26 JN463 - Jul 26, 02:20 UTCJul 26, 02:35 UTC15m
2026-07-26 JNA464 CJU → KUV Jul 26, 00:50 UTCJul 26, 01:05 UTC15m
2026-07-25 JNA505 GMP → CJU Jul 25, 22:45 UTCJul 25, 23:20 UTC35m
2026-07-25 JNA660 KPO → GMP Jul 25, 11:20 UTCJul 25, 11:50 UTC30m
2026-07-25 JNA438 CJU → KPO Jul 25, 10:00 UTCJul 25, 10:15 UTC15m
2026-07-25 JNA453 KWJ → CJU Jul 25, 08:15 UTCJul 25, 08:30 UTC15m
2026-07-25 JNA454 CJU → KWJ Jul 25, 07:05 UTCJul 25, 07:20 UTC15m
2026-07-25 JNA509 GMP → CJU Jul 25, 04:25 UTCJul 25, 05:00 UTC35m
2026-07-25 JNA506 CJU → GMP Jul 25, 02:40 UTCJul 25, 03:20 UTC40m
2026-07-24 JNA671 GMP → RSU Jul 24, 23:05 UTCJul 24, 23:40 UTC35m
2026-07-24 JNA510 - Jul 24, 12:55 UTCJul 24, 13:35 UTC40m
2026-07-24 JNA569 PUS → CJU Jul 24, 10:50 UTCJul 24, 11:10 UTC20m
2026-07-24 JNA566 CJU → PUS Jul 24, 09:30 UTCJul 24, 09:50 UTC20m
2026-07-24 JNA427 TAE → CJU Jul 24, 07:00 UTCJul 24, 07:20 UTC20m
2026-07-24 JNA428 CJU → TAE Jul 24, 05:35 UTCJul 24, 05:55 UTC20m
2026-07-24 JNA401 CJJ → CJU Jul 24, 02:50 UTCJul 24, 03:20 UTC30m
2026-07-24 JNA402 CJU → CJJ Jul 24, 01:15 UTCJul 24, 01:45 UTC30m
2026-07-23 JNA563 PUS → CJU Jul 23, 23:05 UTCJul 23, 23:20 UTC15m
2026-07-23 JNA922 GUM → PUS Jul 23, 11:50 UTCJul 23, 21:15 UTC9h 25m
2026-07-23 JNA224 NRT → PUS Jul 23, 08:30 UTCJul 23, 10:15 UTC1h 45m
2026-07-23 JNA223 PUS → NRT Jul 23, 05:25 UTCJul 23, 07:10 UTC1h 45m
2026-07-23 JNA376 NGO → PUS Jul 23, 02:15 UTCJul 23, 03:20 UTC1h 5m
2026-07-22 JNA375 PUS → NGO Jul 22, 23:45 UTCJul 23, 00:45 UTC1h 0m
2026-07-22 JNA022 BKK → PUS Jul 22, 17:25 UTCJul 22, 22:15 UTC4h 50m
2026-07-22 JNA021 PUS → BKK Jul 22, 11:10 UTCJul 22, 15:30 UTC4h 20m
2026-07-22 JNA562 CJU → PUS Jul 22, 04:35 UTCJul 22, 04:50 UTC15m
2026-07-22 JNA463 KUV → CJU Jul 22, 02:35 UTCJul 22, 02:50 UTC15m
2026-07-22 JNA464 CJU → KUV Jul 22, 00:55 UTCJul 22, 01:10 UTC15m
2026-07-21 JNA563 PUS → CJU Jul 21, 23:05 UTCJul 21, 23:20 UTC15m
2026-07-21 JNA224 NRT → PUS Jul 21, 08:45 UTCJul 21, 10:30 UTC1h 45m
2026-07-21 JNA223 PUS → NRT Jul 21, 05:20 UTCJul 21, 07:05 UTC1h 45m
2026-07-21 JNA376 NGO → PUS Jul 21, 02:10 UTCJul 21, 03:25 UTC1h 15m
2026-07-20 JNA375 PUS → NGO Jul 20, 23:50 UTCJul 21, 00:50 UTC1h 0m
2026-07-20 JNA111 PUS → DAD Jul 20, 13:05 UTCJul 20, 22:40 UTC9h 35m
2026-07-20 JNA224 - Jul 20, 08:25 UTCJul 20, 10:05 UTC1h 40m
2026-07-20 JNA223 PUS → NRT Jul 20, 05:20 UTCJul 20, 07:00 UTC1h 40m
2026-07-20 JNA376 NGO → PUS Jul 20, 02:20 UTCJul 20, 03:30 UTC1h 10m
2026-07-19 JNA375 PUS → NGO Jul 19, 23:55 UTCJul 20, 00:55 UTC1h 0m
2026-07-19 JNA062 ICN → PUS Jul 19, 13:05 UTCJul 19, 22:25 UTC9h 20m
2026-07-19 JNA210 NRT → ICN Jul 19, 09:40 UTCJul 19, 11:30 UTC1h 50m
2026-07-19 JNA209 ICN → NRT Jul 19, 06:25 UTCJul 19, 08:20 UTC1h 55m
2026-07-19 JNA346 - Jul 19, 01:40 UTCJul 19, 03:10 UTC1h 30m
2026-07-18 JNA345 ICN → NGO Jul 18, 22:55 UTCJul 19, 00:10 UTC1h 15m
2026-07-18 JNA916 GUM → ICN Jul 18, 09:40 UTCJul 18, 19:30 UTC9h 50m
2026-07-18 JNA206 - Jul 18, 04:35 UTCJul 18, 06:30 UTC1h 55m

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 HL8245 page for operator, model, and routing details .

Mode-S 71C245 frequently asked

What is Mode-S code 71C245?
71C245 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8245.
Where is Mode-S 71C245 registered?
Mode-S code 71C245 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 71C245 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C245, octal 34341105, decimal 7,455,301.
What flights does 71C245 operate?
Mode-S 71C245 has broadcast 20 distinct callsigns, including JNA671, JNA509, JNA506, JNA224, JNA223.