Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 1d ago
Flights observed
251
Distinct callsigns
20
Country
KR
Last broadcast
1d 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 - 29 2026-07-10
AIH918 - 28 2026-07-10
AIH919 - 20 2026-07-16
AIH920 - 17 2026-07-17
AIH971 - 14 2026-07-15
AIH925 - 12 2026-07-16
AIH926 - 10 2026-07-16
AIH972 - 9 2026-07-15
AIH374 - 8 2026-07-14
AIH973 - 7 2026-07-09
AIH948 - 7 2026-06-24
AIH371 - 7 2026-07-08
AIH181 - 7 2026-07-11
AIH977 - 6 2026-07-07
AIH947 - 6 2026-06-23
AIH372 - 6 2026-07-08
AIH182 - 6 2026-07-11
AIH978 - 5 2026-07-07
AIH375 - 5 2026-07-13
AIH373 - 5 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 AIH920 - Jul 17, 00:30 UTCJul 17, 00:55 UTC25m
2026-07-16 AIH919 - Jul 16, 14:29 UTCJul 16, 14:55 UTC25m
2026-07-16 AIH926 - Jul 16, 06:00 UTCJul 16, 06:25 UTC25m
2026-07-16 AIH925 - Jul 16, 02:55 UTCJul 16, 03:15 UTC20m
2026-07-15 AIH972 HKG → ICN Jul 15, 19:00 UTCJul 15, 22:25 UTC3h 25m
2026-07-15 AIH971 ICN → HKG Jul 15, 14:15 UTCJul 15, 17:20 UTC3h 5m
2026-07-15 AIH191 KIX → ICN Jul 15, 11:05 UTCJul 15, 12:25 UTC1h 20m
2026-07-15 AIH192 ICN → KIX Jul 15, 08:10 UTCJul 15, 09:45 UTC1h 35m
2026-07-15 AIH926 - Jul 15, 06:05 UTCJul 15, 06:35 UTC30m
2026-07-15 AIH925 - Jul 15, 03:05 UTCJul 15, 03:20 UTC15m
2026-07-14 AIH374 - Jul 14, 20:35 UTCJul 15, 00:30 UTC3h 54m
2026-07-14 AIH373 - Jul 14, 15:15 UTCJul 14, 18:05 UTC2h 50m
2026-07-13 AIH376 - Jul 13, 23:20 UTCJul 14, 00:00 UTC40m
2026-07-13 AIH376 - Jul 13, 20:00 UTCJul 13, 20:15 UTC15m
2026-07-13 AIH375 - Jul 13, 14:20 UTCJul 13, 17:10 UTC2h 50m
2026-07-11 AIH374 - Jul 11, 23:45 UTCJul 12, 00:10 UTC25m
2026-07-11 AIH374 - Jul 11, 20:20 UTCJul 11, 20:30 UTC10m
2026-07-11 AIH373 - Jul 11, 15:05 UTCJul 11, 15:20 UTC15m
2026-07-11 AIH181 KIX → ICN Jul 11, 10:25 UTCJul 11, 11:50 UTC1h 25m
2026-07-11 AIH182 ICN → KIX Jul 11, 07:50 UTCJul 11, 09:20 UTC1h 30m
2026-07-11 AIH926 - Jul 11, 05:55 UTCJul 11, 06:15 UTC20m
2026-07-11 AIH925 - Jul 11, 02:45 UTCJul 11, 03:05 UTC20m
2026-07-10 AIH972 HKG → ICN Jul 10, 20:35 UTCJul 10, 23:45 UTC3h 10m
2026-07-10 AIH971 ICN → HKG Jul 10, 15:10 UTCJul 10, 18:15 UTC3h 5m
2026-07-10 AIH918 - Jul 10, 10:45 UTCJul 10, 11:15 UTC30m
2026-07-10 AIH917 - Jul 10, 03:50 UTCJul 10, 04:05 UTC15m
2026-07-09 AIH974 HKG → ICN Jul 9, 19:25 UTCJul 9, 22:30 UTC3h 5m
2026-07-09 AIH973 ICN → HKG Jul 9, 14:30 UTCJul 9, 17:45 UTC3h 15m
2026-07-09 AIH181 KIX → ICN Jul 9, 10:40 UTCJul 9, 12:05 UTC1h 25m
2026-07-09 AIH182 ICN → KIX Jul 9, 07:45 UTCJul 9, 09:15 UTC1h 30m
2026-07-08 AIH372 - Jul 8, 19:55 UTCJul 9, 00:00 UTC4h 5m
2026-07-08 AIH371 - Jul 8, 18:10 UTCJul 8, 18:20 UTC10m
2026-07-08 AIH371 - Jul 8, 14:25 UTCJul 8, 14:55 UTC30m
2026-07-08 AIH191 KIX → ICN Jul 8, 10:45 UTCJul 8, 12:10 UTC1h 25m
2026-07-08 AIH192 ICN → KIX Jul 8, 07:55 UTCJul 8, 09:30 UTC1h 35m
2026-07-07 AIH920 - Jul 7, 23:45 UTCJul 8, 00:00 UTC15m
2026-07-07 AIH919 - Jul 7, 15:55 UTCJul 7, 22:50 UTC6h 55m
2026-07-07 AIH978 - Jul 7, 12:05 UTCJul 7, 12:20 UTC15m
2026-07-07 AIH977 - Jul 7, 08:15 UTCJul 7, 08:30 UTC15m
2026-07-07 AIH926 - Jul 7, 05:35 UTCJul 7, 05:55 UTC20m
2026-07-07 AIH925 - Jul 7, 02:45 UTCJul 7, 03:05 UTC20m
2026-07-06 AIH972 HKG → ICN Jul 6, 18:45 UTCJul 6, 22:00 UTC3h 15m
2026-07-06 AIH971 ICN → HKG Jul 6, 14:15 UTCJul 6, 17:20 UTC3h 5m
2026-07-04 AIH920 - Jul 4, 22:45 UTCJul 4, 23:05 UTC20m
2026-07-04 AIH919 - Jul 4, 15:00 UTCJul 4, 16:20 UTC1h 20m
2026-07-03 AIH972 - Jul 3, 19:20 UTCJul 3, 22:30 UTC3h 10m
2026-07-03 AIH971 - Jul 3, 17:10 UTCJul 3, 17:45 UTC35m
2026-07-03 AIH971 - Jul 3, 14:20 UTCJul 3, 16:40 UTC2h 20m
2026-07-03 AIH926 - Jul 3, 05:35 UTCJul 3, 05:55 UTC20m
2026-07-03 AIH925 - Jul 3, 02:40 UTCJul 3, 03:00 UTC20m

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 1d 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, AIH919, AIH920, AIH971.