Apparatus

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sensors Mode-S transponder

71C069

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

Currently assigned to HL8069 · BOEING 737-800

Hex
71C069
Octal
34340151
Decimal
7,454,825
Country
KR
Tail
HL8069
Type
B738
No current signal · last broadcast 7h ago
Flights observed
353
Distinct callsigns
20
Country
KR
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 71C069.

Country allocation

The ICAO 24-bit address 71C069 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
TWB728 - 9 2026-07-06
TWB725 - 8 2026-05-19
TWB332 - 8 2026-07-12
TWB806 - 6 2026-07-05
TWB735 - 6 2026-07-06
TWB720 Tway Airlines 6 2026-05-19
TWB707 - 6 2026-07-06
TWB643 - 6 2026-06-19
TWB319 - 6 2026-07-12
TWB314 - 6 2026-06-20
TWB907 Tway Airlines 5 2026-05-12
TWB906 Tway Airlines 5 2026-05-12
TWB850 - 5 2026-07-14
TWB736 - 5 2026-07-06
TWB722 - 5 2026-06-25
TWB702 - 5 2026-07-05
TWB667 - 5 2026-07-10
TWB640 - 5 2026-07-11
TWB331 - 5 2026-07-07
TWB320 - 5 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TWB850 - Jul 14, 13:10 UTCJul 14, 13:45 UTC35m
2026-07-14 TWB849 - Jul 14, 11:05 UTCJul 14, 11:40 UTC35m
2026-07-14 TWB844 - Jul 14, 09:40 UTCJul 14, 10:10 UTC30m
2026-07-14 TWB690 - Jul 14, 05:50 UTCJul 14, 06:35 UTC45m
2026-07-14 TWB689 - Jul 14, 03:15 UTCJul 14, 04:15 UTC1h 0m
2026-07-14 TWB843 - Jul 14, 00:05 UTCJul 14, 00:35 UTC30m
2026-07-13 TWB850 - Jul 13, 13:10 UTCJul 13, 13:40 UTC30m
2026-07-13 TWB849 - Jul 13, 11:15 UTCJul 13, 11:45 UTC30m
2026-07-13 TWB686 - Jul 13, 08:10 UTCJul 13, 08:45 UTC35m
2026-07-13 TWB685 - Jul 13, 03:30 UTCJul 13, 04:05 UTC35m
2026-07-13 TWB842 - Jul 13, 01:30 UTCJul 13, 02:05 UTC35m
2026-07-12 TWB743 - Jul 12, 09:05 UTCJul 12, 09:35 UTC30m
2026-07-12 TWB742 - Jul 12, 07:25 UTCJul 12, 08:05 UTC40m
2026-07-12 TWB332 - Jul 12, 03:20 UTCJul 12, 04:20 UTC1h 0m
2026-07-12 TWB319 PUS → KIX Jul 12, 00:40 UTCJul 12, 01:40 UTC1h 0m
2026-07-11 TWB640 - Jul 11, 20:50 UTCJul 11, 21:15 UTC25m
2026-07-11 TWB640 - Jul 11, 18:00 UTCJul 11, 20:05 UTC2h 5m
2026-07-11 TWB639 PUS → HKG Jul 11, 13:05 UTCJul 11, 16:05 UTC3h 0m
2026-07-11 TWB927 GMP → PUS Jul 11, 10:00 UTCJul 11, 10:45 UTC45m
2026-07-11 TWB926 PUS → GMP Jul 11, 08:10 UTCJul 11, 08:50 UTC40m
2026-07-11 TWB925 GMP → PUS Jul 11, 06:10 UTCJul 11, 06:50 UTC40m
2026-07-11 TWB924 PUS → GMP Jul 11, 03:55 UTCJul 11, 04:35 UTC40m
2026-07-11 TWB923 GMP → PUS Jul 11, 02:00 UTCJul 11, 02:40 UTC40m
2026-07-11 TWB706 - Jul 11, 00:15 UTCJul 11, 01:00 UTC45m
2026-07-10 TWB703 - Jul 10, 22:05 UTCJul 10, 22:50 UTC45m
2026-07-10 TWB734 - Jul 10, 12:05 UTCJul 10, 12:50 UTC45m
2026-07-10 TWB733 - Jul 10, 10:00 UTCJul 10, 10:35 UTC35m
2026-07-10 TWB668 TSA → GMP Jul 10, 06:00 UTCJul 10, 08:15 UTC2h 15m
2026-07-10 TWB667 GMP → TSA Jul 10, 02:35 UTCJul 10, 04:45 UTC2h 10m
2026-07-09 TWB922 PUS → GMP Jul 9, 21:45 UTCJul 9, 22:25 UTC40m
2026-07-09 TWB676 - Jul 9, 12:05 UTCJul 9, 12:35 UTC30m
2026-07-09 TWB676 - Jul 9, 10:20 UTCJul 9, 11:05 UTC45m
2026-07-09 TWB675 PUS → KHH Jul 9, 06:45 UTCJul 9, 09:00 UTC2h 15m
2026-07-09 TWB270 - Jul 9, 02:45 UTCJul 9, 05:05 UTC2h 20m
2026-07-08 TWB269 - Jul 8, 23:25 UTCJul 9, 01:30 UTC2h 5m
2026-07-08 TWB640 HKG → PUS Jul 8, 18:00 UTCJul 8, 21:10 UTC3h 10m
2026-07-08 TWB639 PUS → HKG Jul 8, 12:50 UTCJul 8, 16:00 UTC3h 10m
2026-07-08 TWB236 - Jul 8, 11:15 UTCJul 8, 11:45 UTC30m
2026-07-08 TWB235 - Jul 8, 09:15 UTCJul 8, 09:45 UTC30m
2026-07-08 TWB322 KIX → PUS Jul 8, 06:50 UTCJul 8, 07:55 UTC1h 5m
2026-07-08 TWB321 PUS → KIX Jul 8, 04:10 UTCJul 8, 05:20 UTC1h 10m
2026-07-08 TWB232 - Jul 8, 02:05 UTCJul 8, 02:55 UTC50m
2026-07-08 TWB231 - Jul 8, 00:40 UTCJul 8, 00:55 UTC15m
2026-07-07 TWB320 KIX → PUS Jul 7, 10:10 UTCJul 7, 11:10 UTC1h 0m
2026-07-07 TWB331 - Jul 7, 07:45 UTCJul 7, 08:50 UTC1h 5m
2026-07-07 TWB717 - Jul 7, 05:15 UTCJul 7, 05:50 UTC35m
2026-07-07 TWB718 - Jul 7, 03:30 UTCJul 7, 04:10 UTC40m
2026-07-07 TWB809 - Jul 7, 01:25 UTCJul 7, 01:40 UTC15m
2026-07-06 TWB804 - Jul 6, 23:45 UTCJul 7, 00:00 UTC15m
2026-07-06 TWB701 - Jul 6, 21:40 UTCJul 6, 22:20 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 HL8069 page for operator, model, and routing details .

Mode-S 71C069 frequently asked

What is Mode-S code 71C069?
71C069 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8069.
Where is Mode-S 71C069 registered?
Mode-S code 71C069 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 71C069 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C069, octal 34340151, decimal 7,454,825.
What flights does 71C069 operate?
Mode-S 71C069 has broadcast 20 distinct callsigns, including TWB728, TWB725, TWB332, TWB806, TWB735.