Apparatus

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sensors Mode-S transponder

71C006

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

Currently assigned to HL8006 · BOEING 777-300ER

Hex
71C006
Octal
34340006
Decimal
7,454,726
Country
KR
Tail
HL8006
Type
B77W
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
190
Distinct callsigns
20
Country
KR
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 71C006.

Country allocation

The ICAO 24-bit address 71C006 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
KAL085 Korean Air 19 2026-07-24
KAL086 Korean Air 18 2026-07-25
KAL036 - 16 2026-07-15
KAL034 Korean Air 15 2026-07-26
KAL094 - 14 2026-07-07
KAL908 Korean Air 12 2026-07-21
KAL035 - 12 2026-07-15
KAL033 Korean Air 12 2026-07-26
KAL907 Korean Air 11 2026-07-21
KAL902 Korean Air 9 2026-07-24
KAL901 Korean Air 9 2026-07-23
KAL646 Korean Air 9 2026-07-22
KAL645 Korean Air 9 2026-07-21
KAL093 - 8 2026-07-07
KAL938 Korean Air 2 2026-04-25
KAL937 Korean Air 2 2026-04-24
KAL006 - 2 2026-07-02
KAL005 - 2 2026-07-01
KAL766 Korean Air 1 2026-07-20
KAL765 - 1 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAL034 ATL → ICN Jul 26, 16:05 UTCJul 26, 21:30 UTC5h 25m
2026-07-26 KAL033 ICN → ATL Jul 26, 00:25 UTCJul 26, 13:35 UTC13h 11m
2026-07-25 KAL086 JFK → ICN Jul 25, 05:15 UTCJul 25, 20:30 UTC15h 15m
2026-07-24 KAL085 ICN → JFK Jul 24, 11:15 UTCJul 25, 00:45 UTC13h 30m
2026-07-24 KAL902 CDG → ICN Jul 24, 06:15 UTCJul 24, 06:30 UTC15m
2026-07-23 KAL902 CDG → ICN Jul 23, 19:15 UTCJul 24, 05:25 UTC10h 10m
2026-07-23 KAL901 ICN → CDG Jul 23, 04:25 UTCJul 23, 12:55 UTC8h 30m
2026-07-23 KAL901 ICN → CDG Jul 23, 03:15 UTCJul 23, 03:35 UTC20m
2026-07-22 KAL646 SIN → ICN Jul 22, 18:20 UTCJul 23, 00:10 UTC5h 50m
2026-07-21 KAL645 PUS → CBO Jul 21, 21:35 UTCJul 22, 16:10 UTC18h 35m
2026-07-21 KAL908 LHR → ICN Jul 21, 19:35 UTCJul 22, 16:10 UTC20h 35m
2026-07-21 KAL908 LHR → ICN Jul 21, 19:20 UTCJul 22, 16:10 UTC20h 50m
2026-07-21 KAL907 ICN → LHR Jul 21, 04:05 UTCJul 21, 16:35 UTC12h 30m
2026-07-21 KAL907 ICN → LHR Jul 21, 02:50 UTCJul 21, 03:15 UTC25m
2026-07-20 KAL766 CTS → ICN Jul 20, 06:20 UTCJul 20, 08:35 UTC2h 15m
2026-07-20 KAL765 ICN → CTS Jul 20, 02:05 UTCJul 20, 04:20 UTC2h 15m
2026-07-19 KAL086 JFK → ICN Jul 19, 06:45 UTCJul 19, 20:50 UTC14h 5m
2026-07-18 KAL085 ICN → JFK Jul 18, 10:45 UTCJul 19, 01:25 UTC14h 40m
2026-07-17 KAL034 ATL → ICN Jul 17, 16:04 UTCJul 18, 06:20 UTC14h 16m
2026-07-17 KAL033 ICN → ATL Jul 17, 00:14 UTCJul 17, 13:40 UTC13h 25m
2026-07-15 KAL036 ATL → ICN Jul 15, 17:55 UTCJul 16, 08:10 UTC14h 15m
2026-07-15 KAL035 ICN → ATL Jul 15, 02:15 UTCJul 15, 15:25 UTC13h 10m
2026-07-14 KAL086 JFK → ICN Jul 14, 05:20 UTCJul 14, 19:55 UTC14h 35m
2026-07-13 KAL085 ICN → JFK Jul 13, 11:15 UTCJul 14, 00:20 UTC13h 5m
2026-07-13 KAL908 - Jul 13, 06:20 UTCJul 13, 06:40 UTC20m
2026-07-12 KAL908 - Jul 12, 19:20 UTCJul 13, 05:31 UTC10h 10m
2026-07-12 KAL907 - Jul 12, 03:30 UTCJul 12, 15:45 UTC12h 15m
2026-07-12 KAL907 - Jul 12, 02:20 UTCJul 12, 02:40 UTC20m
2026-07-10 KAL036 ATL → ICN Jul 10, 18:00 UTCJul 11, 08:15 UTC14h 15m
2026-07-10 KAL035 ICN → ATL Jul 10, 02:10 UTCJul 10, 15:30 UTC13h 20m
2026-07-09 KAL086 JFK → ICN Jul 9, 05:10 UTCJul 9, 18:55 UTC13h 45m
2026-07-08 KAL085 ICN → JFK Jul 8, 11:20 UTCJul 9, 00:45 UTC13h 25m
2026-07-07 KAL094 IAD → ICN Jul 7, 18:15 UTCJul 8, 08:40 UTC14h 25m
2026-07-07 KAL093 ICN → IAD Jul 7, 01:55 UTCJul 7, 15:15 UTC13h 20m
2026-07-05 KAL034 ATL → ICN Jul 5, 16:25 UTCJul 6, 07:25 UTC15h 0m
2026-07-05 KAL033 ICN → ATL Jul 5, 00:10 UTCJul 5, 13:15 UTC13h 5m
2026-07-03 KAL034 ATL → ICN Jul 3, 15:55 UTCJul 4, 06:10 UTC14h 15m
2026-07-03 KAL033 ICN → ATL Jul 3, 00:30 UTCJul 3, 13:40 UTC13h 10m
2026-07-02 KAL006 LAS → ICN Jul 2, 07:10 UTCJul 2, 19:45 UTC12h 35m
2026-07-01 KAL005 ICN → LAS Jul 1, 12:20 UTCJul 1, 22:55 UTC10h 35m
2026-06-30 KAL646 SIN → ICN Jun 30, 21:00 UTCJun 30, 23:50 UTC2h 50m
2026-06-30 KAL646 SIN → ICN Jun 30, 17:55 UTCJun 30, 18:05 UTC10m
2026-06-30 KAL645 - Jun 30, 15:20 UTCJun 30, 15:35 UTC15m
2026-06-30 KAL645 - Jun 30, 10:15 UTCJun 30, 12:45 UTC2h 30m
2026-06-29 KAL034 ATL → ICN Jun 29, 16:10 UTCJun 30, 06:30 UTC14h 21m
2026-06-29 KAL033 ICN → ATL Jun 29, 00:29 UTCJun 29, 13:39 UTC13h 10m
2026-06-27 KAL094 IAD → ICN Jun 27, 17:44 UTCJun 28, 08:19 UTC14h 35m
2026-06-27 KAL093 ICN → IAD Jun 27, 01:49 UTCJun 27, 14:54 UTC13h 5m
2026-06-25 KAL036 ATL → ICN Jun 25, 18:00 UTCJun 26, 08:40 UTC14h 40m
2026-06-25 KAL035 ICN → ATL Jun 25, 02:14 UTCJun 25, 14:50 UTC12h 35m

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 HL8006 page for operator, model, and routing details .

Mode-S 71C006 frequently asked

What is Mode-S code 71C006?
71C006 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8006.
Where is Mode-S 71C006 registered?
Mode-S code 71C006 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 71C006 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C006, octal 34340006, decimal 7,454,726.
What flights does 71C006 operate?
Mode-S 71C006 has broadcast 20 distinct callsigns, including KAL085, KAL086, KAL036, KAL034, KAL094.