Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C338

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

Currently assigned to HL8338 · BOEING 737-800

Hex
71C338
Octal
34341470
Decimal
7,455,544
Country
KR
Tail
HL8338
Type
B738
No current signal · last broadcast Jul 25, 23:10 UTC
Flights observed
244
Distinct callsigns
20
Country
KR
Last broadcast
Jul 25, 23:10 UTC

Last known position

Most recent position reported by Mode-S 71C338.

Country allocation

The ICAO 24-bit address 71C338 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
AIH925 - 21 2026-07-22
AIH926 - 19 2026-07-21
AIH919 - 19 2026-07-25
AIH920 - 18 2026-07-25
AIH947 - 15 2026-07-15
AIH917 Alpine Air Chile 14 2026-07-25
AIH918 - 13 2026-07-25
AIH182 - 11 2026-07-04
AIH914 - 10 2026-04-29
AIH181 - 10 2026-07-04
AIH948 - 9 2026-07-21
AIH192 - 9 2026-06-24
AIH191 - 9 2026-07-22
AIH977 - 8 2026-07-21
AIH913 Alpine Air Chile 8 2026-04-29
AIH978 - 6 2026-07-14
AIH374 - 6 2026-07-04
AIH373 - 6 2026-07-04
AIH376 - 5 2026-07-06
AIH375 Alpine Air Chile 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AIH920 - Jul 25, 22:50 UTCJul 25, 23:10 UTC20m
2026-07-25 AIH919 - Jul 25, 14:55 UTCJul 25, 21:55 UTC7h 0m
2026-07-25 AIH918 - Jul 25, 09:30 UTCJul 25, 10:00 UTC30m
2026-07-25 AIH917 BFS → AGP Jul 25, 03:55 UTCJul 25, 04:25 UTC30m
2026-07-24 AIH920 - Jul 24, 22:50 UTCJul 24, 23:10 UTC20m
2026-07-24 AIH919 - Jul 24, 14:25 UTCJul 24, 21:55 UTC7h 30m
2026-07-24 AIH918 - Jul 24, 10:50 UTCJul 24, 11:20 UTC30m
2026-07-24 AIH917 BFS → AGP Jul 24, 03:55 UTCJul 24, 04:10 UTC15m
2026-07-23 AIH919 ICN → ICN Jul 23, 14:35 UTCJul 23, 22:50 UTC8h 15m
2026-07-22 AIH191 - Jul 22, 11:15 UTCJul 22, 12:40 UTC1h 25m
2026-07-22 AIH925 - Jul 22, 03:20 UTCJul 22, 03:40 UTC20m
2026-07-21 AIH948 ICN → ICN Jul 21, 16:15 UTCJul 21, 22:15 UTC6h 0m
2026-07-21 AIH977 ICN → ICN Jul 21, 08:05 UTCJul 21, 12:10 UTC4h 5m
2026-07-21 AIH926 - Jul 21, 06:00 UTCJul 21, 06:20 UTC20m
2026-07-21 AIH925 - Jul 21, 03:00 UTCJul 21, 03:25 UTC25m
2026-07-20 AIH918 - Jul 20, 10:35 UTCJul 20, 11:10 UTC35m
2026-07-20 AIH917 BFS → AGP Jul 20, 04:20 UTCJul 20, 04:45 UTC25m
2026-07-17 AIH920 - Jul 17, 22:45 UTCJul 17, 23:10 UTC25m
2026-07-17 AIH919 - Jul 17, 14:44 UTCJul 17, 22:00 UTC7h 15m
2026-07-17 AIH918 - Jul 17, 10:44 UTCJul 17, 11:10 UTC25m
2026-07-17 AIH917 - Jul 17, 04:14 UTCJul 17, 04:35 UTC20m
2026-07-16 AIH974 HKG → ICN Jul 16, 18:59 UTCJul 16, 22:15 UTC3h 15m
2026-07-16 AIH973 ICN → HKG Jul 16, 14:15 UTCJul 16, 17:20 UTC3h 5m
2026-07-16 AIH918 - Jul 16, 10:50 UTCJul 16, 11:20 UTC30m
2026-07-16 AIH917 - Jul 16, 03:45 UTCJul 16, 04:15 UTC30m
2026-07-15 AIH947 ICN → ICN Jul 15, 16:05 UTCJul 15, 20:40 UTC4h 35m
2026-07-15 AIH918 - Jul 15, 11:10 UTCJul 15, 11:35 UTC25m
2026-07-15 AIH917 - Jul 15, 03:45 UTCJul 15, 04:05 UTC20m
2026-07-14 AIH947 ICN → ICN Jul 14, 16:15 UTCJul 14, 21:20 UTC5h 5m
2026-07-14 AIH978 - Jul 14, 11:50 UTCJul 14, 13:00 UTC1h 10m
2026-07-14 AIH977 - Jul 14, 08:00 UTCJul 14, 08:20 UTC20m
2026-07-14 AIH926 - Jul 14, 06:10 UTCJul 14, 06:30 UTC20m
2026-07-14 AIH925 - Jul 14, 02:40 UTCJul 14, 03:00 UTC20m
2026-07-13 AIH926 - Jul 13, 05:55 UTCJul 13, 06:15 UTC20m
2026-07-13 AIH925 - Jul 13, 03:05 UTCJul 13, 03:25 UTC20m
2026-07-11 AIH920 - Jul 11, 22:25 UTCJul 11, 22:45 UTC20m
2026-07-11 AIH919 - Jul 11, 14:45 UTCJul 11, 21:30 UTC6h 45m
2026-07-10 AIH920 - Jul 10, 22:25 UTCJul 10, 22:45 UTC20m
2026-07-10 AIH919 - Jul 10, 14:25 UTCJul 10, 15:50 UTC1h 25m
2026-07-09 AIH920 - Jul 9, 23:05 UTCJul 9, 23:30 UTC25m
2026-07-09 AIH919 - Jul 9, 15:15 UTCJul 9, 15:35 UTC20m
2026-07-08 AIH948 - Jul 8, 22:00 UTCJul 8, 22:40 UTC40m
2026-07-08 AIH947 - Jul 8, 16:15 UTCJul 8, 16:40 UTC25m
2026-07-07 AIH947 ICN → ICN Jul 7, 16:15 UTCJul 7, 20:55 UTC4h 40m
2026-07-06 AIH376 - Jul 6, 23:20 UTCJul 7, 00:05 UTC45m
2026-07-06 AIH376 - Jul 6, 20:05 UTCJul 6, 20:15 UTC10m
2026-07-06 AIH375 ICN → HAN Jul 6, 14:05 UTCJul 6, 14:45 UTC40m
2026-07-06 AIH918 - Jul 6, 10:40 UTCJul 6, 11:10 UTC30m
2026-07-06 AIH917 - Jul 6, 04:40 UTCJul 6, 04:55 UTC15m
2026-07-04 AIH374 - Jul 4, 23:00 UTCJul 4, 23:40 UTC40m

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 HL8338 page for operator, model, and routing details .

Mode-S 71C338 frequently asked

What is Mode-S code 71C338?
71C338 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8338.
Where is Mode-S 71C338 registered?
Mode-S code 71C338 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 71C338 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 23:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C338, octal 34341470, decimal 7,455,544.
What flights does 71C338 operate?
Mode-S 71C338 has broadcast 20 distinct callsigns, including AIH925, AIH926, AIH919, AIH920, AIH947.