Apparatus

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sensors Mode-S transponder

71C353

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

Currently assigned to HL8353 · BOEING 737 MAX 8

Hex
71C353
Octal
34341523
Decimal
7,455,571
Country
KR
Tail
HL8353
Type
B38M
No current signal · last broadcast Jul 26, 20:25 UTC
Flights observed
377
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 20:25 UTC

Last known position

Most recent position reported by Mode-S 71C353.

Country allocation

The ICAO 24-bit address 71C353 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
JNA350 - 14 2026-07-19
JNA262 Jin Air 14 2026-07-23
JNA261 Jin Air 14 2026-07-22
JNA044 - 14 2026-07-19
JNA263 Jin Air 13 2026-07-23
JNA349 - 12 2026-07-19
JNA736 Jin Air 11 2026-07-19
JNA735 Jin Air 11 2026-07-18
JNA345 - 11 2026-06-11
JNA264 Jin Air 11 2026-07-23
JNA362 Jin Air 10 2026-07-26
JNA347 Jin Air 9 2026-07-20
JNA091 Jin Air 9 2026-07-26
JNA088 - 9 2026-07-15
JNA360 Jin Air 8 2026-07-17
JNA358 Jin Air 8 2026-07-20
JNA348 - 8 2026-07-20
JNA346 Jin Air 8 2026-06-12
JNA361 Jin Air 7 2026-06-08
JNA359 - 7 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JNA091 ICN → PQC Jul 26, 08:40 UTCJul 26, 20:25 UTC11h 45m
2026-07-26 JNA362 ISG → ICN Jul 26, 00:35 UTCJul 26, 06:50 UTC6h 16m
2026-07-25 JNA038 CRK → ICN Jul 25, 17:40 UTCJul 25, 21:25 UTC3h 45m
2026-07-25 JNA065 PUS → CRK Jul 25, 13:15 UTCJul 25, 16:20 UTC3h 5m
2026-07-25 JNA224 NRT → PUS Jul 25, 08:25 UTCJul 25, 10:05 UTC1h 40m
2026-07-25 JNA223 PUS → NRT Jul 25, 05:30 UTCJul 25, 07:10 UTC1h 40m
2026-07-25 JNA222 NRT → PUS Jul 25, 02:20 UTCJul 25, 03:55 UTC1h 35m
2026-07-24 JNA201 ICN → NRT Jul 24, 22:55 UTCJul 25, 00:50 UTC1h 55m
2026-07-24 JNA214 NRT → ICN Jul 24, 12:20 UTCJul 24, 14:25 UTC2h 5m
2026-07-24 JNA213 ICN → NRT Jul 24, 08:50 UTCJul 24, 10:55 UTC2h 5m
2026-07-24 JNA242 KIX → ICN Jul 24, 02:35 UTCJul 24, 03:55 UTC1h 20m
2026-07-23 JNA241 ICN → KIX Jul 23, 23:35 UTCJul 24, 01:00 UTC1h 25m
2026-07-23 JNA010 CNX → ICN Jul 23, 14:55 UTCJul 23, 19:50 UTC4h 55m
2026-07-23 JNA009 - Jul 23, 08:40 UTCJul 23, 13:20 UTC4h 40m
2026-07-23 JNA264 FUK → ICN Jul 23, 06:05 UTCJul 23, 07:00 UTC55m
2026-07-23 JNA263 ICN → FUK Jul 23, 03:35 UTCJul 23, 04:35 UTC1h 0m
2026-07-23 JNA262 FUK → ICN Jul 23, 01:00 UTCJul 23, 02:00 UTC1h 0m
2026-07-22 JNA261 ICN → FUK Jul 22, 22:40 UTCJul 22, 23:25 UTC45m
2026-07-22 JNA010 CNX → ICN Jul 22, 15:05 UTCJul 22, 20:00 UTC4h 55m
2026-07-22 JNA009 - Jul 22, 11:35 UTCJul 22, 13:40 UTC2h 5m
2026-07-22 JNA263 ICN → FUK Jul 22, 03:40 UTCJul 22, 04:40 UTC1h 0m
2026-07-22 JNA262 FUK → ICN Jul 22, 01:05 UTCJul 22, 02:05 UTC1h 0m
2026-07-21 JNA261 ICN → FUK Jul 21, 22:35 UTCJul 21, 23:15 UTC40m
2026-07-21 JNA010 - Jul 21, 15:50 UTCJul 21, 20:45 UTC4h 55m
2026-07-21 JNA009 - Jul 21, 09:40 UTCJul 21, 14:25 UTC4h 45m
2026-07-21 JNA264 FUK → ICN Jul 21, 06:05 UTCJul 21, 07:05 UTC1h 0m
2026-07-21 JNA263 ICN → FUK Jul 21, 03:50 UTCJul 21, 04:45 UTC55m
2026-07-20 JNA918 GUM → ICN Jul 20, 13:50 UTCJul 20, 23:15 UTC9h 25m
2026-07-20 JNA348 - Jul 20, 10:30 UTCJul 20, 12:00 UTC1h 30m
2026-07-20 JNA347 ICN → NGO Jul 20, 07:30 UTCJul 20, 08:50 UTC1h 20m
2026-07-20 JNA358 SHI → ICN Jul 20, 00:00 UTCJul 20, 05:30 UTC5h 30m
2026-07-19 JNA044 ICN → ICN Jul 19, 12:25 UTCJul 19, 22:10 UTC9h 45m
2026-07-19 JNA350 - Jul 19, 09:25 UTCJul 19, 10:20 UTC55m
2026-07-19 JNA349 - Jul 19, 07:00 UTCJul 19, 07:50 UTC50m
2026-07-19 JNA736 RMQ → ICN Jul 19, 03:05 UTCJul 19, 05:20 UTC2h 15m
2026-07-18 JNA735 ICN → RMQ Jul 18, 23:30 UTCJul 19, 01:35 UTC2h 5m
2026-07-18 JNA010 - Jul 18, 14:40 UTCJul 18, 19:35 UTC4h 55m
2026-07-18 JNA009 - Jul 18, 08:50 UTCJul 18, 13:20 UTC4h 30m
2026-07-18 JNA264 - Jul 18, 06:05 UTCJul 18, 07:15 UTC1h 10m
2026-07-18 JNA263 - Jul 18, 03:35 UTCJul 18, 04:20 UTC45m
2026-07-17 JNA002 - Jul 17, 23:35 UTCJul 18, 00:15 UTC40m
2026-07-17 JNA002 - Jul 17, 21:15 UTCJul 17, 22:20 UTC1h 5m
2026-07-17 JNA002 - Jul 17, 19:00 UTCJul 17, 19:09 UTC10m
2026-07-17 JNA001 - Jul 17, 16:24 UTCJul 17, 16:34 UTC10m
2026-07-17 JNA001 - Jul 17, 11:25 UTCJul 17, 14:20 UTC2h 55m
2026-07-17 JNA360 TAK → ICN Jul 17, 08:40 UTCJul 17, 09:50 UTC1h 10m
2026-07-17 JNA359 - Jul 17, 06:00 UTCJul 17, 07:05 UTC1h 5m
2026-07-17 JNA262 - Jul 17, 01:09 UTCJul 17, 02:10 UTC1h 0m
2026-07-16 JNA261 - Jul 16, 22:35 UTCJul 16, 23:20 UTC45m
2026-07-16 JNA272 - Jul 16, 11:10 UTCJul 16, 12:09 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 HL8353 page for operator, model, and routing details .

Mode-S 71C353 frequently asked

What is Mode-S code 71C353?
71C353 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8353.
Where is Mode-S 71C353 registered?
Mode-S code 71C353 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 71C353 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C353, octal 34341523, decimal 7,455,571.
What flights does 71C353 operate?
Mode-S 71C353 has broadcast 20 distinct callsigns, including JNA350, JNA262, JNA261, JNA044, JNA263.