Apparatus

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sensors Mode-S transponder

71C012

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

Currently assigned to HL8012 · BOEING 737-800

Hex
71C012
Octal
34340022
Decimal
7,454,738
Country
KR
Tail
HL8012
Type
B738
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
480
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 71C012.

Country allocation

The ICAO 24-bit address 71C012 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
JNA752 Jin Air 12 2026-07-26
JNA751 Jin Air 9 2026-07-26
JNA474 - 9 2026-07-07
JNA222 Jin Air 9 2026-07-21
JNA201 - 9 2026-07-20
JNA111 Jin Air 9 2026-07-25
JNA738 Jin Air 8 2026-06-02
JNA737 Jin Air 8 2026-06-02
JNA473 - 8 2026-07-07
JNA376 Jin Air 8 2026-07-24
JNA221 - 8 2026-07-17
JNA202 - 8 2026-07-18
JNA375 Jin Air 7 2026-07-24
JNA274 Jin Air 7 2026-06-02
JNA224 - 7 2026-07-17
JNA112 Jin Air 7 2026-07-25
JNA372 Jin Air 6 2026-07-26
JNA312 Jin Air 6 2026-07-25
JNA256 Jin Air 6 2026-07-25
JNA251 Jin Air 6 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JNA752 TPE → PUS Jul 26, 20:20 UTCJul 26, 21:10 UTC50m
2026-07-26 JNA752 TPE → PUS Jul 26, 18:45 UTCJul 26, 19:05 UTC20m
2026-07-26 JNA751 PUS → TPE Jul 26, 13:20 UTCJul 26, 15:10 UTC1h 50m
2026-07-26 JNA363 PUS → PUS Jul 26, 05:55 UTCJul 26, 11:05 UTC5h 11m
2026-07-26 JNA372 OKA → PUS Jul 26, 03:20 UTCJul 26, 03:50 UTC30m
2026-07-26 JNA372 OKA → PUS Jul 26, 02:20 UTCJul 26, 02:30 UTC10m
2026-07-25 JNA371 PUS → OKA Jul 25, 23:35 UTCJul 26, 01:00 UTC1h 25m
2026-07-25 JNA112 DAD → PUS Jul 25, 21:45 UTCJul 25, 22:05 UTC20m
2026-07-25 JNA111 PUS → DAD Jul 25, 13:00 UTCJul 25, 20:35 UTC7h 35m
2026-07-25 JNA312 CTS → PUS Jul 25, 08:45 UTCJul 25, 10:55 UTC2h 10m
2026-07-25 JNA311 PUS → CTS Jul 25, 05:20 UTCJul 25, 07:25 UTC2h 5m
2026-07-25 JNA256 KIX → PUS Jul 25, 02:20 UTCJul 25, 03:15 UTC55m
2026-07-24 JNA255 PUS → KIX Jul 24, 23:35 UTCJul 25, 00:45 UTC1h 10m
2026-07-24 JNA112 DAD → PUS Jul 24, 14:20 UTCJul 24, 22:15 UTC7h 55m
2026-07-24 JNA111 PUS → DAD Jul 24, 12:50 UTCJul 24, 13:00 UTC10m
2026-07-24 JNA312 CTS → PUS Jul 24, 08:40 UTCJul 24, 10:45 UTC2h 5m
2026-07-24 JNA311 PUS → CTS Jul 24, 05:20 UTCJul 24, 07:30 UTC2h 10m
2026-07-24 JNA376 NGO → PUS Jul 24, 02:30 UTCJul 24, 03:40 UTC1h 10m
2026-07-24 JNA375 PUS → NGO Jul 24, 00:00 UTCJul 24, 01:05 UTC1h 5m
2026-07-23 JNA062 CEB → PUS Jul 23, 22:15 UTCJul 23, 22:50 UTC35m
2026-07-23 JNA031 ICN → CEB Jul 23, 13:25 UTCJul 23, 21:05 UTC7h 40m
2026-07-23 JNA210 NRT → ICN Jul 23, 09:50 UTCJul 23, 11:45 UTC1h 55m
2026-07-23 JNA209 ICN → NRT Jul 23, 06:25 UTCJul 23, 08:25 UTC2h 0m
2026-07-22 JNA002 - Jul 22, 18:50 UTCJul 22, 23:50 UTC5h 0m
2026-07-22 JNA001 - Jul 22, 11:35 UTCJul 22, 16:45 UTC5h 10m
2026-07-22 JNA251 PUS → KIX Jul 22, 04:50 UTCJul 22, 05:25 UTC35m
2026-07-22 JNA256 KIX → PUS Jul 22, 02:15 UTCJul 22, 03:15 UTC1h 0m
2026-07-21 JNA255 PUS → KIX Jul 21, 23:40 UTCJul 22, 00:45 UTC1h 5m
2026-07-21 JNA312 - Jul 21, 08:45 UTCJul 21, 10:50 UTC2h 5m
2026-07-21 JNA311 - Jul 21, 05:15 UTCJul 21, 07:15 UTC2h 0m
2026-07-21 JNA222 NRT → PUS Jul 21, 02:10 UTCJul 21, 03:55 UTC1h 45m
2026-07-20 JNA201 - Jul 20, 22:55 UTCJul 21, 00:45 UTC1h 49m
2026-07-20 JNA916 GUM → ICN Jul 20, 09:55 UTCJul 20, 19:30 UTC9h 35m
2026-07-20 JNA206 NRT → ICN Jul 20, 04:35 UTCJul 20, 06:40 UTC2h 5m
2026-07-20 JNA205 ICN → NRT Jul 20, 01:30 UTCJul 20, 03:20 UTC1h 50m
2026-07-19 JNA002 - Jul 19, 23:05 UTCJul 19, 23:40 UTC35m
2026-07-19 JNA002 - Jul 19, 20:45 UTCJul 19, 22:00 UTC1h 15m
2026-07-19 JNA002 - Jul 19, 18:35 UTCJul 19, 18:50 UTC15m
2026-07-19 JNA001 - Jul 19, 11:35 UTCJul 19, 14:25 UTC2h 50m
2026-07-19 JNA236 KIX → ICN Jul 19, 07:15 UTCJul 19, 08:40 UTC1h 25m
2026-07-19 JNA251 PUS → KIX Jul 19, 04:50 UTCJul 19, 06:00 UTC1h 10m
2026-07-19 JNA256 KIX → PUS Jul 19, 02:10 UTCJul 19, 03:10 UTC1h 0m
2026-07-18 JNA255 PUS → KIX Jul 18, 23:40 UTCJul 19, 00:45 UTC1h 5m
2026-07-18 JNA062 - Jul 18, 21:50 UTCJul 18, 22:15 UTC25m
2026-07-18 JNA031 - Jul 18, 13:05 UTCJul 18, 21:05 UTC8h 0m
2026-07-18 JNA210 NRT → ICN Jul 18, 11:05 UTCJul 18, 11:30 UTC25m
2026-07-18 JNA210 NRT → ICN Jul 18, 09:35 UTCJul 18, 10:35 UTC1h 0m
2026-07-18 JNA209 ICN → NRT Jul 18, 06:05 UTCJul 18, 08:00 UTC1h 55m
2026-07-18 JNA202 - Jul 18, 02:25 UTCJul 18, 04:15 UTC1h 51m
2026-07-17 JNA221 PUS → NRT Jul 17, 23:14 UTCJul 18, 00:55 UTC1h 40m

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 HL8012 page for operator, model, and routing details .

Mode-S 71C012 frequently asked

What is Mode-S code 71C012?
71C012 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8012.
Where is Mode-S 71C012 registered?
Mode-S code 71C012 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 71C012 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C012, octal 34340022, decimal 7,454,738.
What flights does 71C012 operate?
Mode-S 71C012 has broadcast 20 distinct callsigns, including JNA752, JNA751, JNA474, JNA222, JNA201.