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 JNA088 · 37,000 ft
Flights observed
343
Distinct callsigns
20
Country
KR
Last broadcast
5h ago

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
JNA238 - 7 2026-06-21
JNA038 Jin Air 7 2026-06-20
JNA505 - 6 2026-06-30
JNA404 - 6 2026-06-25
JNA403 - 6 2026-06-25
JNA237 - 6 2026-06-21
JNA738 - 5 2026-06-14
JNA737 - 5 2026-06-14
JNA410 Jin Air 5 2026-06-16
JNA409 - 5 2026-06-16
JNA251 - 5 2026-07-13
JNA236 - 5 2026-07-13
JNA065 - 5 2026-06-20
JNA735 Jin Air 4 2026-04-19
JNA474 - 4 2026-06-27
JNA473 - 4 2026-06-27
JNA464 - 4 2026-07-01
JNA463 - 4 2026-07-01
JNA402 - 4 2026-06-28
JNA401 - 4 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JNA087 - Jul 14, 12:45 UTCJul 14, 15:30 UTC2h 45m
2026-07-13 JNA132 BKI → ICN Jul 13, 16:45 UTCJul 13, 21:45 UTC5h 0m
2026-07-13 JNA131 - Jul 13, 10:45 UTCJul 13, 15:20 UTC4h 35m
2026-07-13 JNA236 KIX → ICN Jul 13, 07:15 UTCJul 13, 08:45 UTC1h 30m
2026-07-13 JNA251 PUS → KIX Jul 13, 04:45 UTCJul 13, 05:50 UTC1h 5m
2026-07-13 JNA292 - Jul 13, 02:20 UTCJul 13, 03:01 UTC40m
2026-07-13 JNA291 - Jul 13, 00:30 UTCJul 13, 00:50 UTC20m
2026-07-12 JNA364 PUS → PUS Jul 12, 06:01 UTCJul 12, 11:01 UTC5h 0m
2026-07-12 JNA292 - Jul 12, 03:01 UTCJul 12, 03:35 UTC35m
2026-07-12 JNA291 - Jul 12, 01:15 UTCJul 12, 01:30 UTC15m
2026-07-11 JNA062 - Jul 11, 23:35 UTCJul 11, 23:55 UTC20m
2026-07-11 JNA031 - Jul 11, 15:00 UTCJul 11, 22:50 UTC7h 50m
2026-07-10 JNA132 BKI → ICN Jul 10, 17:15 UTCJul 10, 22:10 UTC4h 55m
2026-07-10 JNA131 - Jul 10, 10:50 UTCJul 10, 15:40 UTC4h 50m
2026-07-09 JNA236 KIX → ICN Jul 9, 07:30 UTCJul 9, 08:50 UTC1h 20m
2026-07-09 JNA251 PUS → KIX Jul 9, 04:50 UTCJul 9, 06:00 UTC1h 10m
2026-07-08 JNA031 ICN → PUS Jul 8, 13:55 UTCJul 8, 23:00 UTC9h 5m
2026-07-08 JNA210 - Jul 8, 10:00 UTCJul 8, 11:55 UTC1h 55m
2026-07-08 JNA209 ICN → NRT Jul 8, 06:25 UTCJul 8, 08:20 UTC1h 55m
2026-07-08 JNA346 - Jul 8, 01:40 UTCJul 8, 03:15 UTC1h 35m
2026-07-07 JNA345 - Jul 7, 22:40 UTCJul 8, 00:00 UTC1h 20m
2026-07-07 JNA304 - Jul 7, 10:30 UTCJul 7, 13:00 UTC2h 30m
2026-07-07 JNA303 - Jul 7, 06:40 UTCJul 7, 09:05 UTC2h 25m
2026-07-06 JNA236 KIX → ICN Jul 6, 07:50 UTCJul 6, 09:15 UTC1h 25m
2026-07-06 JNA251 PUS → KIX Jul 6, 05:00 UTCJul 6, 06:05 UTC1h 5m
2026-07-06 JNA376 - Jul 6, 02:20 UTCJul 6, 03:30 UTC1h 10m
2026-07-05 JNA375 - Jul 5, 23:40 UTCJul 6, 00:40 UTC1h 0m
2026-07-05 JNA062 - Jul 5, 13:00 UTCJul 5, 22:15 UTC9h 15m
2026-07-05 JNA236 KIX → ICN Jul 5, 07:30 UTCJul 5, 09:05 UTC1h 35m
2026-07-05 JNA251 PUS → KIX Jul 5, 04:45 UTCJul 5, 05:45 UTC1h 0m
2026-07-04 JNA031 ICN → PUS Jul 4, 13:15 UTCJul 4, 22:40 UTC9h 25m
2026-07-04 JNA210 - Jul 4, 09:45 UTCJul 4, 11:40 UTC1h 55m
2026-07-04 JNA209 ICN → NRT Jul 4, 06:15 UTCJul 4, 08:20 UTC2h 5m
2026-07-03 JNA002 - Jul 3, 18:30 UTCJul 3, 23:30 UTC5h 0m
2026-07-03 JNA001 - Jul 3, 11:25 UTCJul 3, 16:40 UTC5h 15m
2026-07-03 JNA236 KIX → ICN Jul 3, 07:25 UTCJul 3, 08:55 UTC1h 30m
2026-07-03 JNA251 PUS → KIX Jul 3, 04:50 UTCJul 3, 06:00 UTC1h 10m
2026-07-03 JNA292 - Jul 3, 02:40 UTCJul 3, 03:15 UTC35m
2026-07-03 JNA291 - Jul 3, 00:45 UTCJul 3, 01:00 UTC15m
2026-07-02 JNA120 - Jul 2, 23:20 UTCJul 2, 23:40 UTC20m
2026-07-02 JNA119 - Jul 2, 11:50 UTCJul 2, 22:15 UTC10h 25m
2026-07-02 JNA254 KIX → PUS Jul 2, 08:50 UTCJul 2, 09:55 UTC1h 5m
2026-07-02 JNA253 PUS → KIX Jul 2, 06:15 UTCJul 2, 07:20 UTC1h 5m
2026-07-02 JNA372 - Jul 2, 04:00 UTCJul 2, 04:20 UTC20m
2026-07-02 JNA372 - Jul 2, 02:55 UTCJul 2, 03:15 UTC20m
2026-07-02 JNA371 - Jul 2, 00:30 UTCJul 2, 00:50 UTC20m
2026-07-01 JNA371 - Jul 1, 23:20 UTCJul 1, 23:45 UTC25m
2026-07-01 JNA922 PUS → PUS Jul 1, 12:10 UTCJul 1, 21:10 UTC9h 0m
2026-07-01 JNA564 - Jul 1, 08:15 UTCJul 1, 08:35 UTC20m
2026-07-01 JNA567 - Jul 1, 06:05 UTCJul 1, 06:20 UTC15m

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 JNA238, JNA038, JNA505, JNA404, JNA403.