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 1h ago
Flights observed
170
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

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
JNA201 Jin Air 6 2026-05-29
JNA671 Jin Air 5 2026-05-20
JNA509 Jin Air 5 2026-05-21
JNA506 Jin Air 5 2026-05-21
JNA221 Jin Air 5 2026-05-26
JNA202 Jin Air 5 2026-05-27
JNA660 Jin Air 4 2026-05-18
JNA659 Jin Air 4 2026-05-24
JNA516 Jin Air 4 2026-05-17
JNA508 Jin Air 4 2026-05-17
JNA672 Jin Air 3 2026-05-21
JNA515 Jin Air 3 2026-05-17
JNA511 Jin Air 3 2026-05-17
JNA510 Jin Air 3 2026-05-23
JNA472 Jin Air 3 2026-05-17
JNA471 Jin Air 3 2026-05-17
JNA453 Jin Air 3 2026-04-24
JNA348 Jin Air 3 2026-05-27
JNA347 Jin Air 3 2026-05-27
JNA224 Jin Air 3 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JNA201 ICN → NRT May 29, 22:50 UTCMay 29, 23:15 UTC25m
2026-05-29 JNA236 KIX → ICN May 29, 07:25 UTCMay 29, 09:00 UTC1h 35m
2026-05-29 JNA256 KIX → PUS May 29, 02:25 UTCMay 29, 05:55 UTC3h 30m
2026-05-28 JNA255 PUS → KIX May 28, 18:15 UTCMay 29, 00:50 UTC6h 35m
2026-05-28 JNA037 ICN → CRK May 28, 13:15 UTCMay 28, 16:35 UTC3h 20m
2026-05-28 JNA264 FUK → ICN May 28, 06:25 UTCMay 28, 07:10 UTC45m
2026-05-28 JNA263 ICN → FUK May 28, 03:45 UTCMay 28, 04:50 UTC1h 5m
2026-05-28 JNA262 FUK → ICN May 28, 01:10 UTCMay 28, 02:10 UTC1h 0m
2026-05-27 JNA261 ICN → FUK May 27, 22:35 UTCMay 27, 23:05 UTC30m
2026-05-27 JNA348 NGO → ICN May 27, 10:30 UTCMay 27, 11:55 UTC1h 25m
2026-05-27 JNA347 ICN → NGO May 27, 07:35 UTCMay 27, 08:55 UTC1h 20m
2026-05-27 JNA202 NRT → ICN May 27, 02:29 UTCMay 27, 04:39 UTC2h 10m
2026-05-26 JNA221 ICN → FUK May 26, 23:29 UTCMay 27, 00:49 UTC1h 20m
2026-05-26 JNA221 ICN → FUK May 26, 02:24 UTCMay 27, 00:49 UTC22h 25m
2026-05-25 JNA201 ICN → NRT May 25, 22:55 UTCMay 26, 00:49 UTC1h 55m
2026-05-25 JNA348 NGO → ICN May 25, 10:20 UTCMay 25, 11:45 UTC1h 25m
2026-05-25 JNA347 ICN → NGO May 25, 07:20 UTCMay 25, 08:40 UTC1h 20m
2026-05-25 JNA202 NRT → ICN May 25, 02:25 UTCMay 25, 04:30 UTC2h 5m
2026-05-24 JNA752 TPE → PUS May 24, 18:50 UTCMay 24, 23:46 UTC4h 56m
2026-05-24 JNA751 PUS → TPE May 24, 14:55 UTCMay 24, 15:25 UTC30m
2026-05-24 JNA659 GMP → KPO May 24, 00:10 UTCMay 24, 00:35 UTC25m
2026-05-23 JNA510 CJU → GMP May 23, 12:50 UTCMay 23, 13:20 UTC30m
2026-05-23 JNA428 CJU → TAE May 23, 05:40 UTCMay 23, 05:55 UTC15m
2026-05-23 JNA401 CJJ → CJU May 23, 03:05 UTCMay 23, 03:25 UTC20m
2026-05-23 JNA402 CJU → CJJ May 23, 01:25 UTCMay 23, 01:55 UTC30m
2026-05-22 JNA659 GMP → KPO May 22, 00:10 UTCMay 22, 00:35 UTC25m
2026-05-21 JNA672 RSU → GMP May 21, 08:25 UTCMay 21, 08:55 UTC30m
2026-05-21 JNA509 GMP → CJU May 21, 04:20 UTCMay 21, 04:45 UTC25m
2026-05-21 JNA506 CJU → GMP May 21, 02:40 UTCMay 21, 03:15 UTC35m
2026-05-20 JNA671 GMP → RSU May 20, 22:55 UTCMay 20, 23:20 UTC25m
2026-05-20 JNA694F PUS → ICN May 20, 12:50 UTCMay 20, 13:25 UTC35m
2026-05-20 JNA509 GMP → CJU May 20, 04:10 UTCMay 20, 04:35 UTC25m
2026-05-18 JNA660 KPO → GMP May 18, 11:05 UTCMay 18, 11:30 UTC25m
2026-05-18 JNA509 GMP → CJU May 18, 04:11 UTCMay 18, 04:30 UTC20m
2026-05-18 JNA506 CJU → GMP May 18, 02:35 UTCMay 18, 03:10 UTC35m
2026-05-17 JNA671 GMP → RSU May 17, 23:00 UTCMay 17, 23:25 UTC25m
2026-05-17 JNA510 CJU → GMP May 17, 13:01 UTCMay 17, 13:31 UTC30m
2026-05-17 JNA515 GMP → CJU May 17, 10:40 UTCMay 17, 11:05 UTC25m
2026-05-17 JNA516 CJU → GMP May 17, 09:10 UTCMay 17, 09:40 UTC30m
2026-05-17 JNA511 GMP → CJU May 17, 07:00 UTCMay 17, 07:25 UTC25m
2026-05-17 JNA508 CJU → GMP May 17, 05:20 UTCMay 17, 05:50 UTC30m
2026-05-17 JNA471 WJU → CJU May 17, 02:35 UTCMay 17, 02:55 UTC20m
2026-05-17 JNA472 CJU → WJU May 17, 00:50 UTCMay 17, 01:15 UTC25m
2026-05-16 JNA473 WJU → CJU May 16, 08:26 UTCMay 16, 08:51 UTC25m
2026-05-16 JNA474 CJU → WJU May 16, 06:50 UTCMay 16, 07:20 UTC30m
2026-05-16 JNA252 KIX → PUS May 16, 01:45 UTCMay 16, 02:20 UTC35m
2026-05-15 JNA231 ICN → CTS May 15, 23:00 UTCMay 16, 00:25 UTC1h 25m
2026-05-15 JNA238 KIX → ICN May 15, 08:45 UTCMay 15, 09:55 UTC1h 10m
2026-05-15 JNA237 ICN → KIX May 15, 06:00 UTCMay 15, 07:35 UTC1h 35m
2026-05-15 JNA270 FUK → ICN May 15, 02:45 UTCMay 15, 03:40 UTC55m

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 1h ago.
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 JNA201, JNA671, JNA509, JNA506, JNA221.