Apparatus

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sensors Mode-S transponder

71C319

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

Currently assigned to HL8319 · BOEING 737-800

Hex
71C319
Octal
34341431
Decimal
7,455,513
Country
KR
Tail
HL8319
Type
B738
No current signal · last broadcast 2h ago
Flights observed
120
Distinct callsigns
20
Country
KR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 71C319.

Country allocation

The ICAO 24-bit address 71C319 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
AIH917 Alpine Air Chile 14 2026-06-02
AIH918 - 13 2026-06-02
AIH920 - 10 2026-05-28
AIH919 - 10 2026-05-28
AIH948 - 6 2026-05-13
AIH925 - 5 2026-05-22
AIH181 Alpine Air Chile 5 2026-05-21
AIH947 - 4 2026-05-27
AIH928 - 4 2026-05-14
AIH927 - 4 2026-05-14
AIH914 - 4 2026-04-30
AIH182 - 4 2026-05-21
AIH978 - 3 2026-05-22
AIH977 - 3 2026-05-22
AIH926 - 3 2026-05-22
AIH913 Alpine Air Chile 3 2026-04-23
AIH375 Alpine Air Chile 3 2026-05-18
AIH372 Alpine Air Chile 3 2026-05-06
AIH371 - 3 2026-05-20
AIH973 Alpine Air Chile 2 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 AIH974 HKG → ICN Jun 2, 18:55 UTCJun 2, 22:00 UTC3h 5m
2026-06-02 AIH973 ICN → HKG Jun 2, 17:00 UTCJun 2, 17:15 UTC15m
2026-06-02 AIH973 ICN → HKG Jun 2, 14:15 UTCJun 2, 16:30 UTC2h 15m
2026-06-02 AIH918 - Jun 2, 10:45 UTCJun 2, 11:20 UTC35m
2026-06-02 AIH917 BFS → AGP Jun 2, 03:50 UTCJun 2, 04:05 UTC15m
2026-05-29 AIH0000 ICN → ICN May 29, 00:35 UTCMay 29, 00:45 UTC10m
2026-05-28 AIH920 - May 28, 22:20 UTCMay 28, 22:45 UTC25m
2026-05-28 AIH919 - May 28, 14:30 UTCMay 28, 21:35 UTC7h 5m
2026-05-28 AIH918 - May 28, 10:30 UTCMay 28, 11:10 UTC40m
2026-05-28 AIH917 BFS → AGP May 28, 03:50 UTCMay 28, 04:20 UTC30m
2026-05-27 AIH947 ICN → ICN May 27, 16:10 UTCMay 27, 20:50 UTC4h 40m
2026-05-26 AIH920 - May 26, 22:44 UTCMay 26, 23:05 UTC20m
2026-05-26 AIH919 - May 26, 14:40 UTCMay 26, 21:55 UTC7h 15m
2026-05-26 AIH918 - May 26, 10:39 UTCMay 26, 11:09 UTC30m
2026-05-26 AIH917 BFS → AGP May 26, 04:00 UTCMay 26, 04:30 UTC30m
2026-05-25 AIH918 - May 25, 10:45 UTCMay 25, 11:20 UTC35m
2026-05-25 AIH917 BFS → AGP May 25, 04:00 UTCMay 25, 04:30 UTC30m
2026-05-23 AIH920 - May 23, 22:45 UTCMay 23, 23:10 UTC25m
2026-05-23 AIH919 - May 23, 14:30 UTCMay 23, 14:50 UTC20m
2026-05-23 AIH918 - May 23, 09:30 UTCMay 23, 10:00 UTC30m
2026-05-23 AIH917 BFS → AGP May 23, 03:50 UTCMay 23, 04:05 UTC15m
2026-05-22 AIH978 - May 22, 16:00 UTCMay 22, 16:20 UTC20m
2026-05-22 AIH977 - May 22, 12:20 UTCMay 22, 12:40 UTC20m
2026-05-22 AIH926 - May 22, 06:05 UTCMay 22, 06:30 UTC25m
2026-05-22 AIH925 - May 22, 03:00 UTCMay 22, 03:20 UTC20m
2026-05-21 AIH947 ICN → ICN May 21, 16:01 UTCMay 21, 20:40 UTC4h 40m
2026-05-21 AIH181 KIX → ICN May 21, 11:10 UTCMay 21, 12:40 UTC1h 30m
2026-05-21 AIH182 ICN → KIX May 21, 08:15 UTCMay 21, 09:50 UTC1h 35m
2026-05-21 AIH926 - May 21, 05:30 UTCMay 21, 05:55 UTC25m
2026-05-21 AIH925 - May 21, 02:45 UTCMay 21, 03:05 UTC20m
2026-05-20 AIH371 ICN → ICN May 20, 14:20 UTCMay 20, 23:45 UTC9h 25m
2026-05-20 AIH918 - May 20, 10:55 UTCMay 20, 11:10 UTC15m
2026-05-20 AIH917 BFS → AGP May 20, 03:55 UTCMay 20, 04:25 UTC30m
2026-05-19 AIH920 - May 19, 22:35 UTCMay 19, 23:05 UTC30m
2026-05-19 AIH919 - May 19, 14:20 UTCMay 19, 15:50 UTC1h 30m
2026-05-19 AIH918 - May 19, 10:55 UTCMay 19, 11:30 UTC35m
2026-05-19 AIH917 BFS → AGP May 19, 03:50 UTCMay 19, 04:05 UTC15m
2026-05-19 AIH917 BFS → AGP May 19, 03:20 UTCMay 19, 03:25 UTC5m
2026-05-18 AIH375 ICN → HAN May 18, 14:05 UTCMay 19, 00:10 UTC10h 4m
2026-05-18 AIH926 - May 18, 05:45 UTCMay 18, 06:05 UTC20m
2026-05-18 AIH925 - May 18, 02:45 UTCMay 18, 03:05 UTC20m
2026-05-17 AIH947 ICN → ICN May 17, 16:05 UTCMay 17, 20:50 UTC4h 45m
2026-05-16 AIH920 - May 16, 22:25 UTCMay 16, 22:50 UTC25m
2026-05-16 AIH919 - May 16, 14:35 UTCMay 16, 14:51 UTC15m
2026-05-16 AIH918 - May 16, 09:25 UTCMay 16, 09:56 UTC30m
2026-05-16 AIH917 BFS → AGP May 16, 03:55 UTCMay 16, 04:20 UTC25m
2026-05-15 AIH920 - May 15, 22:25 UTCMay 15, 22:45 UTC20m
2026-05-15 AIH919 - May 15, 14:25 UTCMay 15, 14:40 UTC15m
2026-05-15 AIH918 - May 15, 10:40 UTCMay 15, 11:15 UTC35m
2026-05-15 AIH917 BFS → AGP May 15, 03:55 UTCMay 15, 04:10 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 HL8319 page for operator, model, and routing details .

Mode-S 71C319 frequently asked

What is Mode-S code 71C319?
71C319 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8319.
Where is Mode-S 71C319 registered?
Mode-S code 71C319 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 71C319 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C319, octal 34341431, decimal 7,455,513.
What flights does 71C319 operate?
Mode-S 71C319 has broadcast 20 distinct callsigns, including AIH917, AIH918, AIH920, AIH919, AIH948.