Apparatus

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sensors Mode-S transponder

71C017

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

Currently assigned to HL8017 · BOEING 737-800

Hex
71C017
Octal
34340027
Decimal
7,454,743
Country
KR
Tail
HL8017
Type
B738
Broadcasting now · callsign JNA737 · 17,425 ft
Flights observed
413
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:35 UTC

Current position

71C017 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C017 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
JNA038 Jin Air 9 2026-07-26
JNA737 Jin Air 7 2026-07-25
JNA372 Jin Air 7 2026-07-23
JNA371 Jin Air 7 2026-07-22
JNA238 - 7 2026-06-21
JNA065 Jin Air 7 2026-07-26
JNA738 Jin Air 6 2026-07-25
JNA505 - 6 2026-06-30
JNA474 Jin Air 6 2026-07-21
JNA473 Jin Air 6 2026-07-21
JNA404 - 6 2026-06-25
JNA403 - 6 2026-06-25
JNA292 Jin Air 6 2026-07-26
JNA291 Jin Air 6 2026-07-26
JNA237 - 6 2026-06-21
JNA410 Jin Air 5 2026-06-16
JNA409 - 5 2026-06-16
JNA402 - 5 2026-07-20
JNA401 - 5 2026-07-20
JNA251 - 5 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JNA038 CRK → ICN Jul 26, 17:45 UTCJul 26, 21:35 UTC3h 50m
2026-07-26 JNA065 PUS → CRK Jul 26, 13:25 UTCJul 26, 16:25 UTC3h 0m
2026-07-26 JNA312 CTS → PUS Jul 26, 08:40 UTCJul 26, 10:50 UTC2h 10m
2026-07-26 JNA311 PUS → CTS Jul 26, 05:25 UTCJul 26, 07:25 UTC2h 1m
2026-07-26 JNA292 FUK → PUS Jul 26, 02:20 UTCJul 26, 02:50 UTC30m
2026-07-26 JNA291 PUS → FUK Jul 26, 00:20 UTCJul 26, 01:00 UTC40m
2026-07-25 JNA062 CEB → PUS Jul 25, 22:50 UTCJul 25, 23:10 UTC20m
2026-07-25 JNA031 ICN → CEB Jul 25, 14:15 UTCJul 25, 22:00 UTC7h 45m
2026-07-25 JNA738 RMQ → ICN Jul 25, 10:05 UTCJul 25, 12:20 UTC2h 15m
2026-07-25 JNA737 ICN → RMQ Jul 25, 08:00 UTCJul 25, 08:35 UTC35m
2026-07-25 JNA737 ICN → RMQ Jul 25, 06:15 UTCJul 25, 07:00 UTC45m
2026-07-25 JNA274 FUK → ICN Jul 25, 03:45 UTCJul 25, 04:50 UTC1h 5m
2026-07-25 JNA273 ICN → FUK Jul 25, 01:05 UTCJul 25, 01:55 UTC50m
2026-07-24 JNA044 - Jul 24, 13:25 UTCJul 24, 23:05 UTC9h 40m
2026-07-24 JNA348 NGO → ICN Jul 24, 10:30 UTCJul 24, 11:55 UTC1h 25m
2026-07-24 JNA347 ICN → NGO Jul 24, 07:40 UTCJul 24, 09:00 UTC1h 20m
2026-07-24 JNA234 KIX → ICN Jul 24, 04:35 UTCJul 24, 05:55 UTC1h 20m
2026-07-24 JNA233 ICN → KIX Jul 24, 01:40 UTCJul 24, 03:05 UTC1h 25m
2026-07-23 JNA038 CRK → ICN Jul 23, 18:45 UTCJul 23, 22:20 UTC3h 35m
2026-07-23 JNA065 PUS → CRK Jul 23, 13:50 UTCJul 23, 17:00 UTC3h 10m
2026-07-23 JNA364 SHI → PUS Jul 23, 10:45 UTCJul 23, 11:15 UTC30m
2026-07-23 JNA363 - Jul 23, 06:00 UTCJul 23, 09:50 UTC3h 50m
2026-07-23 JNA372 OKA → PUS Jul 23, 04:00 UTCJul 23, 04:15 UTC15m
2026-07-23 JNA372 OKA → PUS Jul 23, 02:55 UTCJul 23, 03:05 UTC10m
2026-07-22 JNA371 PUS → OKA Jul 22, 23:40 UTCJul 23, 01:35 UTC1h 55m
2026-07-22 JNA116 CXR → PUS Jul 22, 11:15 UTCJul 22, 21:45 UTC10h 30m
2026-07-22 JNA372 OKA → PUS Jul 22, 04:00 UTCJul 22, 04:20 UTC20m
2026-07-22 JNA372 OKA → PUS Jul 22, 03:00 UTCJul 22, 03:10 UTC10m
2026-07-21 JNA371 PUS → OKA Jul 21, 23:30 UTCJul 22, 01:00 UTC1h 30m
2026-07-21 JNA570 CJU → PUS Jul 21, 11:30 UTCJul 21, 11:50 UTC20m
2026-07-21 JNA473 WJU → CJU Jul 21, 08:35 UTCJul 21, 09:10 UTC35m
2026-07-21 JNA474 CJU → WJU Jul 21, 07:00 UTCJul 21, 07:35 UTC35m
2026-07-21 JNA425 - Jul 21, 04:55 UTCJul 21, 05:10 UTC15m
2026-07-21 JNA426 - Jul 21, 03:30 UTCJul 21, 04:05 UTC35m
2026-07-21 JNA421 - Jul 21, 01:20 UTCJul 21, 01:30 UTC10m
2026-07-20 JNA422 CJU → TAE Jul 20, 23:50 UTCJul 21, 00:20 UTC30m
2026-07-20 JNA501 GMP → CJU Jul 20, 21:35 UTCJul 20, 22:10 UTC35m
2026-07-20 JNA516 - Jul 20, 09:30 UTCJul 20, 10:10 UTC40m
2026-07-20 JNA427 TAE → CJU Jul 20, 07:00 UTCJul 20, 07:10 UTC10m
2026-07-20 JNA428 CJU → TAE Jul 20, 05:30 UTCJul 20, 05:55 UTC25m
2026-07-20 JNA401 - Jul 20, 03:00 UTCJul 20, 03:30 UTC30m
2026-07-20 JNA402 - Jul 20, 00:45 UTCJul 20, 01:15 UTC30m
2026-07-19 JNA561 - Jul 19, 22:45 UTCJul 19, 22:55 UTC10m
2026-07-19 JNA570 - Jul 19, 11:05 UTCJul 19, 11:25 UTC20m
2026-07-19 JNA473 - Jul 19, 08:35 UTCJul 19, 09:10 UTC35m
2026-07-19 JNA474 - Jul 19, 06:50 UTCJul 19, 07:25 UTC35m
2026-07-19 JNA565 PUS → CJU Jul 19, 04:50 UTCJul 19, 05:05 UTC15m
2026-07-19 JNA292 - Jul 19, 02:15 UTCJul 19, 02:50 UTC35m
2026-07-19 JNA291 PUS → FUK Jul 19, 00:05 UTCJul 19, 00:30 UTC25m
2026-07-18 JNA112 DAD → PUS Jul 18, 14:05 UTCJul 18, 22:50 UTC8h 45m

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 HL8017 page for operator, model, and routing details .

Mode-S 71C017 frequently asked

What is Mode-S code 71C017?
71C017 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8017.
Where is Mode-S 71C017 registered?
Mode-S code 71C017 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 71C017 broadcasting right now?
Yes. Mode-S 71C017 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C017, octal 34340027, decimal 7,454,743.
What flights does 71C017 operate?
Mode-S 71C017 has broadcast 20 distinct callsigns, including JNA038, JNA737, JNA372, JNA371, JNA238.