Apparatus

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sensors Mode-S transponder

71C044

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

Currently assigned to HL8044 · BOEING 777-200LR

Hex
71C044
Octal
34340104
Decimal
7,454,788
Country
KR
Tail
HL8044
Type
B77L
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
243
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 71C044.

Country allocation

The ICAO 24-bit address 71C044 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
KAL249 Korean Air 18 2026-06-13
KAL277 - 15 2026-07-11
KAL8313 - 14 2026-06-26
KAL313 - 12 2026-07-19
KAL278 - 12 2026-07-11
KAL8231 - 11 2026-06-27
KAL9231 Korean Air 10 2026-07-26
KAL314 - 10 2026-07-19
KAL8314 - 8 2026-06-26
KAL274 - 8 2026-07-06
KAL273 Korean Air 7 2026-07-05
KAL250 Korean Air 7 2026-06-13
KAL8258 Korean Air 6 2026-07-23
KAL282 Korean Air 6 2026-05-19
KAL251 - 6 2026-07-21
KAL8250 Korean Air 5 2026-05-22
KAL9232 - 4 2026-06-28
KAL8284 Korean Air 4 2026-06-02
KAL8283 Korean Air 4 2026-06-02
KAL341 - 4 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL9231 ANC → ORD Jul 26, 16:35 UTCJul 26, 22:10 UTC5h 35m
2026-07-26 KAL9231 ANC → ORD Jul 26, 07:15 UTCJul 26, 15:00 UTC7h 45m
2026-07-25 KAL8204 ICN → LAX Jul 25, 02:45 UTCJul 25, 14:25 UTC11h 40m
2026-07-24 KAL8203 ICN → LAX Jul 24, 14:45 UTCJul 25, 00:35 UTC9h 50m
2026-07-24 KAL8203 ICN → LAX Jul 24, 13:35 UTCJul 24, 13:55 UTC20m
2026-07-24 KAL390 - Jul 24, 00:45 UTCJul 24, 09:40 UTC8h 55m
2026-07-23 KAL389 - Jul 23, 16:25 UTCJul 23, 22:10 UTC5h 45m
2026-07-23 KAL8258 JFK → ICN Jul 23, 04:25 UTCJul 23, 12:55 UTC8h 30m
2026-07-22 KAL8258 JFK → ICN Jul 22, 19:35 UTCJul 23, 03:15 UTC7h 40m
2026-07-22 KAL8258 JFK → ICN Jul 22, 16:45 UTCJul 22, 18:00 UTC1h 15m
2026-07-21 KAL8257 ANC → JFK Jul 21, 23:05 UTCJul 22, 13:45 UTC14h 40m
2026-07-21 KAL252 JFK → ICN Jul 21, 05:45 UTCJul 21, 20:25 UTC14h 40m
2026-07-21 KAL251 - Jul 21, 01:00 UTCJul 21, 03:30 UTC2h 30m
2026-07-20 KAL251 - Jul 20, 15:15 UTCJul 20, 22:40 UTC7h 25m
2026-07-20 KAL251 - Jul 20, 06:15 UTCJul 20, 13:45 UTC7h 30m
2026-07-19 KAL314 - Jul 19, 21:25 UTCJul 19, 22:05 UTC40m
2026-07-19 KAL314 - Jul 19, 19:00 UTCJul 19, 20:25 UTC1h 25m
2026-07-19 KAL313 - Jul 19, 13:25 UTCJul 19, 16:20 UTC2h 55m
2026-07-18 KAL8236 ANC → ICN Jul 18, 22:20 UTCJul 19, 06:25 UTC8h 5m
2026-07-18 KAL8236 ATL → ANC Jul 18, 14:15 UTCJul 18, 21:00 UTC6h 45m
2026-07-18 KAL8235 - Jul 18, 09:55 UTCJul 18, 11:20 UTC1h 25m
2026-07-18 KAL8235 ANC → ORD Jul 18, 02:19 UTCJul 18, 07:40 UTC5h 21m
2026-07-17 KAL8235 ICN → ANC Jul 17, 17:40 UTCJul 18, 01:10 UTC7h 30m
2026-07-17 KAL390 - Jul 17, 00:35 UTCJul 17, 10:20 UTC9h 45m
2026-07-16 KAL389 - Jul 16, 16:00 UTCJul 16, 21:40 UTC5h 40m
2026-07-16 KAL8258 ANC → ICN Jul 16, 04:15 UTCJul 16, 12:05 UTC7h 50m
2026-07-15 KAL8258 - Jul 15, 19:55 UTCJul 16, 03:10 UTC7h 15m
2026-07-15 KAL8258 - Jul 15, 17:00 UTCJul 15, 18:15 UTC1h 15m
2026-07-15 KAL8257 - Jul 15, 08:35 UTCJul 15, 14:35 UTC6h 0m
2026-07-14 KAL8257 - Jul 14, 23:35 UTCJul 15, 07:20 UTC7h 45m
2026-07-14 KAL252 JFK → ICN Jul 14, 07:00 UTCJul 14, 21:15 UTC14h 15m
2026-07-14 KAL251 - Jul 14, 01:55 UTCJul 14, 04:20 UTC2h 25m
2026-07-13 KAL251 - Jul 13, 15:15 UTCJul 13, 22:55 UTC7h 40m
2026-07-13 KAL251 - Jul 13, 06:15 UTCJul 13, 13:55 UTC7h 40m
2026-07-13 KAL362 - Jul 13, 00:20 UTCJul 13, 01:05 UTC45m
2026-07-12 KAL361 - Jul 12, 14:45 UTCJul 12, 15:25 UTC40m
2026-07-11 KAL278 YVR → ICN Jul 11, 22:35 UTCJul 12, 09:00 UTC10h 25m
2026-07-11 KAL278 DFW → YVR Jul 11, 11:25 UTCJul 11, 20:00 UTC8h 35m
2026-07-11 KAL277 ANC → DFW Jul 11, 03:15 UTCJul 11, 09:05 UTC5h 50m
2026-07-10 KAL277 ICN → ANC Jul 10, 18:25 UTCJul 11, 01:55 UTC7h 30m
2026-07-10 KAL232 - Jul 10, 01:45 UTCJul 10, 15:55 UTC14h 10m
2026-07-09 KAL231 ANC → ORD Jul 9, 17:35 UTCJul 9, 23:25 UTC5h 50m
2026-07-09 KAL231 - Jul 9, 08:35 UTCJul 9, 16:15 UTC7h 40m
2026-07-08 KAL314 HKG → ICN Jul 8, 19:30 UTCJul 8, 22:50 UTC3h 20m
2026-07-08 KAL313 - Jul 8, 13:45 UTCJul 8, 16:45 UTC3h 0m
2026-07-08 KAL342 - Jul 8, 06:45 UTCJul 8, 09:20 UTC2h 35m
2026-07-07 KAL341 - Jul 7, 21:55 UTCJul 7, 22:05 UTC10m
2026-07-07 KAL341 - Jul 7, 16:30 UTCJul 7, 18:50 UTC2h 20m
2026-07-06 KAL274 - Jul 6, 23:15 UTCJul 7, 11:25 UTC12h 10m
2026-07-06 KAL274 - Jul 6, 13:10 UTCJul 6, 21:00 UTC7h 50m

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 HL8044 page for operator, model, and routing details .

Mode-S 71C044 frequently asked

What is Mode-S code 71C044?
71C044 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8044.
Where is Mode-S 71C044 registered?
Mode-S code 71C044 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 71C044 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C044, octal 34340104, decimal 7,454,788.
What flights does 71C044 operate?
Mode-S 71C044 has broadcast 20 distinct callsigns, including KAL249, KAL277, KAL8313, KAL313, KAL278.