sensors Mode-S transponder

71C565

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

Currently assigned to HL8565 · BOEING 737-800

Hex
71C565
Octal
34342545
Decimal
7,456,101
Country
KR
Tail
HL8565
Type
B738
No current signal · last broadcast 57m ago
Flights observed
175
Distinct callsigns
20
Country
KR
Last broadcast
57m ago

Last known position

Most recent position reported by Mode-S 71C565.

Country allocation

The ICAO 24-bit address 71C565 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
TWB288 Tway Airlines 7 2026-05-27
TWB287 Tway Airlines 7 2026-05-26
TWB672 Tway Airlines 6 2026-05-27
TWB671 Tway Airlines 6 2026-05-27
TWB328 Tway Airlines 6 2026-05-06
TWB243 Tway Airlines 6 2026-05-28
TWB225 Tway Airlines 6 2026-05-05
TWB013 Tway Airlines 6 2026-05-22
TWB643 Tway Airlines 5 2026-05-30
TWB327 Tway Airlines 5 2026-05-06
TWB244 Tway Airlines 5 2026-05-28
TWB226 Tway Airlines 5 2026-05-05
TWB045 Tway Airlines 5 2026-05-05
TWB014 Tway Airlines 4 2026-04-17
TWB717 Tway Airlines 3 2026-05-12
TWB707 Tway Airlines 3 2026-05-13
TWB670 Tway Airlines 3 2026-05-26
TWB669 Tway Airlines 3 2026-05-26
TWB644 Tway Airlines 3 2026-05-30
TWB264 Tway Airlines 3 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 TWB644 HKG → ICN May 30, 05:30 UTCMay 30, 06:55 UTC1h 25m
2026-05-30 TWB643 ICN → HKG May 30, 00:00 UTCMay 30, 03:15 UTC3h 15m
2026-05-29 TWB034 CXR → ICN May 29, 10:15 UTCMay 29, 21:10 UTC10h 55m
2026-05-29 TWB644 HKG → ICN May 29, 05:30 UTCMay 29, 08:35 UTC3h 5m
2026-05-29 TWB643 ICN → HKG May 29, 00:00 UTCMay 29, 03:05 UTC3h 5m
2026-05-28 TWB034 CXR → ICN May 28, 11:10 UTCMay 28, 21:35 UTC10h 25m
2026-05-28 TWB244 NRT → ICN May 28, 05:40 UTCMay 28, 07:40 UTC2h 0m
2026-05-28 TWB243 ICN → NRT May 28, 01:45 UTCMay 28, 03:35 UTC1h 50m
2026-05-27 TWB672 KHH → ICN May 27, 08:10 UTCMay 27, 10:40 UTC2h 30m
2026-05-27 TWB671 ICN → KHH May 27, 04:34 UTCMay 27, 07:00 UTC2h 26m
2026-05-27 TWB288 KMJ → ICN May 27, 01:44 UTCMay 27, 02:44 UTC1h 0m
2026-05-26 TWB287 ICN → KMJ May 26, 23:14 UTCMay 26, 23:39 UTC25m
2026-05-26 TWB670 RMQ → ICN May 26, 09:59 UTCMay 26, 12:20 UTC2h 20m
2026-05-26 TWB669 ICN → RMQ May 26, 05:20 UTCMay 26, 07:29 UTC2h 10m
2026-05-26 TWB288 KMJ → ICN May 26, 01:40 UTCMay 26, 02:39 UTC1h 0m
2026-05-25 TWB287 ICN → KMJ May 25, 23:10 UTCMay 26, 00:14 UTC1h 5m
2026-05-25 TWB208 FUK → ICN May 25, 11:40 UTCMay 25, 12:35 UTC55m
2026-05-25 TWB207 ICN → FUK May 25, 09:10 UTCMay 25, 09:40 UTC30m
2026-05-25 TWB244 NRT → ICN May 25, 05:45 UTCMay 25, 07:40 UTC1h 55m
2026-05-25 TWB243 ICN → NRT May 25, 02:00 UTCMay 25, 03:30 UTC1h 30m
2026-05-24 TWB302 KIX → ICN May 24, 03:00 UTCMay 24, 04:20 UTC1h 20m
2026-05-23 TWB301 ICN → KIX May 23, 23:15 UTCMay 24, 00:30 UTC1h 15m
2026-05-23 TWB034 CXR → ICN May 23, 10:05 UTCMay 23, 21:15 UTC11h 10m
2026-05-23 TWB244 NRT → ICN May 23, 05:55 UTCMay 23, 08:00 UTC2h 5m
2026-05-23 TWB243 ICN → NRT May 23, 01:50 UTCMay 23, 03:45 UTC1h 55m
2026-05-22 TWB013 ICN → DAD May 22, 13:00 UTCMay 22, 22:45 UTC9h 45m
2026-05-22 TWB672 KHH → ICN May 22, 08:20 UTCMay 22, 10:45 UTC2h 25m
2026-05-22 TWB671 ICN → KHH May 22, 04:30 UTCMay 22, 07:05 UTC2h 35m
2026-05-22 TWB288 KMJ → ICN May 22, 01:30 UTCMay 22, 02:35 UTC1h 5m
2026-05-21 TWB287 ICN → KMJ May 21, 23:10 UTCMay 21, 23:35 UTC25m
2026-05-19 TWB264 CTS → ICN May 19, 05:40 UTCMay 19, 08:10 UTC2h 30m
2026-05-19 TWB263 ICN → CTS May 19, 01:25 UTCMay 19, 03:45 UTC2h 20m
2026-05-17 TWB644 HKG → ICN May 17, 05:25 UTCMay 17, 08:40 UTC3h 15m
2026-05-17 TWB643 ICN → HKG May 17, 02:50 UTCMay 17, 03:10 UTC20m
2026-05-17 TWB643 ICN → HKG May 17, 00:05 UTCMay 17, 02:20 UTC2h 15m
2026-05-16 TWB643 ICN → HKG May 16, 23:45 UTCMay 16, 23:50 UTC5m
2026-05-16 TWB670 RMQ → ICN May 16, 09:06 UTCMay 16, 11:21 UTC2h 15m
2026-05-16 TWB669 ICN → RMQ May 16, 05:00 UTCMay 16, 07:16 UTC2h 16m
2026-05-15 TWB013 ICN → DAD May 15, 12:55 UTCMay 15, 23:00 UTC10h 4m
2026-05-15 TWB672 KHH → ICN May 15, 08:15 UTCMay 15, 10:45 UTC2h 30m
2026-05-15 TWB671 ICN → KHH May 15, 04:20 UTCMay 15, 06:50 UTC2h 30m
2026-05-15 TWB288 KMJ → ICN May 15, 01:45 UTCMay 15, 02:40 UTC55m
2026-05-14 TWB287 ICN → KMJ May 14, 23:10 UTCMay 15, 00:10 UTC1h 0m
2026-05-14 TWB670 RMQ → ICN May 14, 09:30 UTCMay 14, 11:45 UTC2h 15m
2026-05-14 TWB669 ICN → RMQ May 14, 05:10 UTCMay 14, 07:30 UTC2h 20m
2026-05-14 TWB288 KMJ → ICN May 14, 01:40 UTCMay 14, 02:40 UTC1h 0m
2026-05-13 TWB287 ICN → KMJ May 13, 23:05 UTCMay 13, 23:40 UTC35m
2026-05-13 TWB306 KIX → ICN May 13, 11:15 UTCMay 13, 12:35 UTC1h 20m
2026-05-13 TWB313 TAE → KIX May 13, 08:25 UTCMay 13, 09:05 UTC40m
2026-05-13 TWB214 FUK → TAE May 13, 06:40 UTCMay 13, 06:50 UTC10m

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 HL8565 page for operator, model, and routing details .

Mode-S 71C565 frequently asked

What is Mode-S code 71C565?
71C565 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8565.
Where is Mode-S 71C565 registered?
Mode-S code 71C565 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 71C565 broadcasting right now?
No active broadcast right now. Last signal was 57m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C565, octal 34342545, decimal 7,456,101.
What flights does 71C565 operate?
Mode-S 71C565 has broadcast 20 distinct callsigns, including TWB288, TWB287, TWB672, TWB671, TWB328.