Apparatus

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sensors Mode-S transponder

71C009

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

Currently assigned to HL8009 · BOEING 777-300ER

Hex
71C009
Octal
34340011
Decimal
7,454,729
Country
KR
Tail
HL8009
Type
B77W
Broadcasting now · callsign KAL035 · 33,000 ft
Flights observed
174
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Current position

71C009 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C009 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
KAL938 Korean Air 13 2026-06-01
KAL902 Korean Air 12 2026-07-05
KAL035 - 11 2026-07-14
KAL901 - 10 2026-07-04
KAL645 - 10 2026-07-03
KAL036 - 10 2026-07-11
KAL085 - 9 2026-07-12
KAL937 Korean Air 8 2026-05-31
KAL908 - 8 2026-07-03
KAL907 - 8 2026-07-02
KAL086 - 8 2026-07-13
KAL034 Korean Air 8 2026-06-05
KAL033 Korean Air 8 2026-06-05
KAL646 Korean Air 7 2026-07-03
KAL005 - 7 2026-07-07
KAL094 - 6 2026-06-27
KAL006 - 6 2026-07-08
KAL093 - 5 2026-06-26
KAL602 Korean Air 3 2026-05-28
KAL624 Korean Air 2 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAL035 - Jul 14, 02:15 UTCJul 14, 08:15 UTC6h 0m
2026-07-13 KAL086 JFK → ICN Jul 13, 05:15 UTCJul 13, 19:25 UTC14h 10m
2026-07-12 KAL085 ICN → JFK Jul 12, 11:10 UTCJul 13, 00:45 UTC13h 35m
2026-07-11 KAL036 ATL → ICN Jul 11, 18:10 UTCJul 12, 08:20 UTC14h 10m
2026-07-11 KAL035 ICN → ATL Jul 11, 02:00 UTCJul 11, 15:30 UTC13h 30m
2026-07-09 KAL036 ATL → ICN Jul 9, 17:50 UTCJul 10, 08:05 UTC14h 15m
2026-07-09 KAL035 ICN → ATL Jul 9, 02:00 UTCJul 9, 15:15 UTC13h 15m
2026-07-08 KAL006 LAS → ICN Jul 8, 07:05 UTCJul 8, 19:35 UTC12h 30m
2026-07-07 KAL005 ICN → LAS Jul 7, 12:25 UTCJul 7, 23:10 UTC10h 45m
2026-07-06 KAL036 ATL → ICN Jul 6, 18:10 UTCJul 7, 08:40 UTC14h 30m
2026-07-06 KAL035 ICN → ATL Jul 6, 02:25 UTCJul 6, 15:30 UTC13h 5m
2026-07-05 KAL902 CDG → ICN Jul 5, 05:45 UTCJul 5, 06:10 UTC25m
2026-07-04 KAL902 CDG → ICN Jul 4, 18:55 UTCJul 5, 04:55 UTC10h 0m
2026-07-04 KAL901 - Jul 4, 04:05 UTCJul 4, 16:05 UTC12h 0m
2026-07-04 KAL901 - Jul 4, 02:55 UTCJul 4, 03:10 UTC15m
2026-07-03 KAL646 SIN → ICN Jul 3, 17:55 UTCJul 3, 23:45 UTC5h 50m
2026-07-03 KAL645 - Jul 3, 15:25 UTCJul 3, 16:00 UTC35m
2026-07-03 KAL645 - Jul 3, 10:15 UTCJul 3, 12:50 UTC2h 35m
2026-07-03 KAL908 - Jul 3, 06:25 UTCJul 3, 06:55 UTC30m
2026-07-02 KAL908 - Jul 2, 19:05 UTCJul 3, 05:35 UTC10h 30m
2026-07-02 KAL907 - Jul 2, 10:55 UTCJul 2, 16:05 UTC5h 10m
2026-07-02 KAL907 - Jul 2, 02:40 UTCJul 2, 02:55 UTC15m
2026-06-30 KAL036 ATL → ICN Jun 30, 17:50 UTCJul 1, 08:15 UTC14h 25m
2026-06-30 KAL035 ICN → ATL Jun 30, 02:00 UTCJun 30, 15:00 UTC13h 0m
2026-06-29 KAL086 JFK → ICN Jun 29, 05:24 UTCJun 29, 19:39 UTC14h 15m
2026-06-28 KAL085 ICN → JFK Jun 28, 11:25 UTCJun 29, 00:49 UTC13h 25m
2026-06-27 KAL094 - Jun 27, 08:20 UTCJun 27, 08:49 UTC30m
2026-06-26 KAL094 - Jun 26, 17:59 UTCJun 27, 07:49 UTC13h 50m
2026-06-26 KAL093 ICN → IAD Jun 26, 01:54 UTCJun 26, 14:50 UTC12h 55m
2026-06-25 KAL006 LAS → ICN Jun 25, 07:54 UTCJun 25, 20:19 UTC12h 25m
2026-06-24 KAL005 ICN → LAS Jun 24, 12:14 UTCJun 24, 22:35 UTC10h 20m
2026-06-23 KAL036 ATL → ICN Jun 23, 17:50 UTCJun 24, 08:49 UTC15h 0m
2026-06-23 KAL035 ICN → ATL Jun 23, 01:59 UTCJun 23, 14:44 UTC12h 45m
2026-06-22 KAL475 ICN → ICN Jun 22, 10:34 UTCJun 22, 21:59 UTC11h 25m
2026-06-20 KAL094 IAD → ICN Jun 20, 18:14 UTCJun 21, 08:25 UTC14h 10m
2026-06-20 KAL093 ICN → IAD Jun 20, 02:00 UTCJun 20, 15:09 UTC13h 10m
2026-06-19 KAL902 CDG → ICN Jun 19, 07:59 UTCJun 19, 08:20 UTC20m
2026-06-18 KAL902 CDG → ICN Jun 18, 20:15 UTCJun 19, 07:04 UTC10h 49m
2026-06-18 KAL901 - Jun 18, 11:15 UTCJun 18, 16:20 UTC5h 5m
2026-06-18 KAL901 - Jun 18, 02:55 UTCJun 18, 03:05 UTC10m
2026-06-17 KAL646 SIN → ICN Jun 17, 21:05 UTCJun 17, 23:55 UTC2h 50m
2026-06-17 KAL646 SIN → ICN Jun 17, 17:55 UTCJun 17, 18:05 UTC10m
2026-06-17 KAL645 - Jun 17, 10:30 UTCJun 17, 13:10 UTC2h 40m
2026-06-17 KAL166 - Jun 17, 06:20 UTCJun 17, 06:40 UTC20m
2026-06-17 KAL165 - Jun 17, 00:15 UTCJun 17, 00:35 UTC20m
2026-06-15 KAL036 ATL → ICN Jun 15, 17:50 UTCJun 16, 08:44 UTC14h 55m
2026-06-15 KAL035 ICN → ATL Jun 15, 02:10 UTCJun 15, 15:00 UTC12h 50m
2026-06-14 KAL086 JFK → ICN Jun 14, 05:15 UTCJun 14, 19:35 UTC14h 20m
2026-06-13 KAL085 ICN → JFK Jun 13, 11:15 UTCJun 14, 00:40 UTC13h 25m
2026-06-13 KAL622 MNL → ICN Jun 13, 04:50 UTCJun 13, 08:20 UTC3h 30m

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 HL8009 page for operator, model, and routing details .

Mode-S 71C009 frequently asked

What is Mode-S code 71C009?
71C009 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8009.
Where is Mode-S 71C009 registered?
Mode-S code 71C009 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 71C009 broadcasting right now?
Yes. Mode-S 71C009 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C009, octal 34340011, decimal 7,454,729.
What flights does 71C009 operate?
Mode-S 71C009 has broadcast 20 distinct callsigns, including KAL938, KAL902, KAL035, KAL901, KAL645.