Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C208

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

Currently assigned to HL8208 · BOEING 777-300ER

Hex
71C208
Octal
34341010
Decimal
7,455,240
Country
KR
Tail
HL8208
Type
B77W
No current signal · last broadcast 8h ago
Flights observed
191
Distinct callsigns
20
Country
KR
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 71C208.

Country allocation

The ICAO 24-bit address 71C208 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
KAL926 - 19 2026-07-12
KAL091 - 14 2026-06-30
KAL092 Korean Air 13 2026-06-30
KAL925 - 11 2026-07-11
KAL476 - 11 2026-06-21
KAL437 - 10 2026-07-13
KAL651 - 9 2026-06-29
KAL652 - 8 2026-06-29
KAL475 - 8 2026-06-24
KAL038 Korean Air 7 2026-07-02
KAL946 - 6 2026-06-29
KAL438 - 6 2026-07-13
KAL945 - 5 2026-06-28
KAL874 - 5 2026-07-13
KAL873 - 5 2026-07-13
KAL623 Korean Air 5 2026-06-02
KAL037 - 5 2026-07-02
KAL646 Korean Air 4 2026-06-27
KAL624 Korean Air 4 2026-06-02
KAL622 Korean Air 4 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 KAL438 - Jul 13, 21:05 UTCJul 14, 02:20 UTC5h 15m
2026-07-13 KAL438 - Jul 13, 19:25 UTCJul 13, 19:35 UTC10m
2026-07-13 KAL437 - Jul 13, 16:55 UTCJul 13, 17:10 UTC15m
2026-07-13 KAL437 - Jul 13, 11:00 UTCJul 13, 15:35 UTC4h 35m
2026-07-13 KAL874 - Jul 13, 07:35 UTCJul 13, 08:05 UTC30m
2026-07-13 KAL873 - Jul 13, 04:20 UTCJul 13, 04:50 UTC30m
2026-07-12 KAL438 - Jul 12, 21:05 UTCJul 13, 02:10 UTC5h 5m
2026-07-12 KAL437 - Jul 12, 17:10 UTCJul 12, 17:25 UTC15m
2026-07-12 KAL437 - Jul 12, 11:01 UTCJul 12, 15:50 UTC4h 50m
2026-07-12 KAL926 - Jul 12, 06:45 UTCJul 12, 07:10 UTC25m
2026-07-11 KAL926 - Jul 11, 19:55 UTCJul 12, 06:05 UTC10h 10m
2026-07-11 KAL925 - Jul 11, 04:30 UTCJul 11, 16:35 UTC12h 5m
2026-07-11 KAL925 - Jul 11, 03:15 UTCJul 11, 03:40 UTC25m
2026-07-10 KAL874 - Jul 10, 07:55 UTCJul 10, 08:25 UTC30m
2026-07-10 KAL873 - Jul 10, 04:15 UTCJul 10, 05:00 UTC45m
2026-07-09 KAL438 - Jul 9, 21:10 UTCJul 10, 02:15 UTC5h 5m
2026-07-09 KAL437 - Jul 9, 17:25 UTCJul 9, 17:45 UTC20m
2026-07-09 KAL437 - Jul 9, 11:20 UTCJul 9, 16:05 UTC4h 45m
2026-07-09 KAL902 CDG → ICN Jul 9, 06:05 UTCJul 9, 06:30 UTC25m
2026-07-08 KAL902 CDG → ICN Jul 8, 19:15 UTCJul 9, 05:10 UTC9h 55m
2026-07-08 KAL901 - Jul 8, 04:40 UTCJul 8, 16:55 UTC12h 15m
2026-07-08 KAL901 - Jul 8, 03:25 UTCJul 8, 03:50 UTC25m
2026-07-07 KAL006 LAS → ICN Jul 7, 07:05 UTCJul 7, 19:40 UTC12h 35m
2026-07-06 KAL005 ICN → LAS Jul 6, 12:15 UTCJul 6, 23:20 UTC11h 5m
2026-07-05 KAL438 - Jul 5, 21:15 UTCJul 6, 02:10 UTC4h 55m
2026-07-05 KAL437 - Jul 5, 17:25 UTCJul 5, 17:45 UTC20m
2026-07-05 KAL437 - Jul 5, 11:10 UTCJul 5, 16:00 UTC4h 50m
2026-07-05 KAL874 - Jul 5, 07:35 UTCJul 5, 07:55 UTC20m
2026-07-05 KAL873 - Jul 5, 04:35 UTCJul 5, 04:55 UTC20m
2026-07-04 KAL874 - Jul 4, 07:40 UTCJul 4, 08:05 UTC25m
2026-07-04 KAL873 - Jul 4, 04:15 UTCJul 4, 04:40 UTC25m
2026-07-03 KAL438 - Jul 3, 21:10 UTCJul 4, 02:15 UTC5h 5m
2026-07-03 KAL437 - Jul 3, 17:10 UTCJul 3, 17:20 UTC10m
2026-07-03 KAL437 - Jul 3, 11:10 UTCJul 3, 15:50 UTC4h 40m
2026-07-02 KAL038 ORD → ICN Jul 2, 17:45 UTCJul 3, 07:15 UTC13h 30m
2026-07-02 KAL037 ICN → ORD Jul 2, 02:10 UTCJul 2, 14:20 UTC12h 10m
2026-07-01 KAL602 ICN → ICN Jul 1, 11:15 UTCJul 1, 21:15 UTC10h 0m
2026-06-30 KAL092 BOS → ICN Jun 30, 17:30 UTCJul 1, 07:50 UTC14h 20m
2026-06-30 KAL091 ICN → BOS Jun 30, 00:55 UTCJun 30, 14:20 UTC13h 26m
2026-06-29 KAL652 - Jun 29, 16:59 UTCJun 29, 21:50 UTC4h 50m
2026-06-29 KAL651 - Jun 29, 09:14 UTCJun 29, 14:14 UTC5h 0m
2026-06-29 KAL946 - Jun 29, 04:45 UTCJun 29, 05:04 UTC20m
2026-06-28 KAL946 - Jun 28, 17:50 UTCJun 29, 03:54 UTC10h 5m
2026-06-28 KAL945 - Jun 28, 03:40 UTCJun 28, 15:05 UTC11h 25m
2026-06-28 KAL945 - Jun 28, 02:29 UTCJun 28, 02:44 UTC15m
2026-06-27 KAL646 SIN → ICN Jun 27, 21:04 UTCJun 27, 23:55 UTC2h 50m
2026-06-27 KAL646 SIN → ICN Jun 27, 17:59 UTCJun 27, 18:09 UTC10m
2026-06-27 KAL645 - Jun 27, 15:34 UTCJun 27, 16:00 UTC25m
2026-06-27 KAL645 - Jun 27, 10:05 UTCJun 27, 13:04 UTC3h 0m
2026-06-27 KAL946 - Jun 27, 05:10 UTCJun 27, 05:29 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 HL8208 page for operator, model, and routing details .

Mode-S 71C208 frequently asked

What is Mode-S code 71C208?
71C208 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8208.
Where is Mode-S 71C208 registered?
Mode-S code 71C208 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 71C208 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C208, octal 34341010, decimal 7,455,240.
What flights does 71C208 operate?
Mode-S 71C208 has broadcast 20 distinct callsigns, including KAL926, KAL091, KAL092, KAL925, KAL476.