Apparatus

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sensors Mode-S transponder

71F895

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

Hex
71F895
Octal
34374225
Decimal
7,469,205
Country
KR
No current signal · last broadcast Jul 24, 04:10 UTC
Flights observed
24
Distinct callsigns
1
Country
KR
Last broadcast
Jul 24, 04:10 UTC

Last known position

Most recent position reported by Mode-S 71F895.

Country allocation

The ICAO 24-bit address 71F895 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 1 distinct

Callsign Airline Flights Last seen
AAAAAAA - 24 2026-07-24

Recent flights last 24

DateFlightRouteTakeoffLandingDuration
2026-07-24 AAAAAAA PUS → PUS Jul 24, 02:35 UTCJul 24, 04:10 UTC1h 35m
2026-07-21 AAAAAAA PUS → PUS Jul 21, 02:15 UTCJul 21, 03:35 UTC1h 20m
2026-07-21 AAAAAAA PUS → PUS Jul 21, 00:25 UTCJul 21, 01:00 UTC35m
2026-07-20 AAAAAAA - Jul 20, 23:15 UTCJul 20, 23:20 UTC5m
2026-07-20 AAAAAAA - Jul 20, 02:55 UTCJul 20, 03:40 UTC45m
2026-07-20 AAAAAAA - Jul 20, 02:05 UTCJul 20, 02:10 UTC5m
2026-07-19 AAAAAAA PUS → PUS Jul 19, 23:05 UTCJul 20, 00:55 UTC1h 50m
2026-07-16 AAAAAAA - Jul 16, 03:10 UTCJul 16, 03:50 UTC40m
2026-07-16 AAAAAAA - Jul 16, 02:10 UTCJul 16, 02:20 UTC10m
2026-07-16 AAAAAAA - Jul 16, 00:15 UTCJul 16, 01:00 UTC45m
2026-07-15 AAAAAAA - Jul 15, 23:25 UTCJul 15, 23:35 UTC10m
2026-07-15 AAAAAAA - Jul 15, 01:05 UTCJul 15, 03:05 UTC2h 0m
2026-07-14 AAAAAAA PUS → PUS Jul 14, 01:55 UTCJul 14, 03:25 UTC1h 30m
2026-07-13 AAAAAAA - Jul 13, 23:50 UTCJul 14, 00:35 UTC45m
2026-07-13 AAAAAAA - Jul 13, 23:00 UTCJul 13, 23:05 UTC5m
2026-07-13 AAAAAAA - Jul 13, 01:55 UTCJul 13, 03:15 UTC1h 20m
2026-07-13 AAAAAAA - Jul 13, 00:10 UTCJul 13, 00:45 UTC35m
2026-07-10 AAAAAAA - Jul 10, 06:25 UTCJul 10, 06:50 UTC25m
2026-07-10 AAAAAAA - Jul 10, 05:20 UTCJul 10, 05:25 UTC5m
2026-07-10 AAAAAAA - Jul 10, 01:35 UTCJul 10, 01:50 UTC15m
2026-07-10 AAAAAAA - Jul 10, 00:30 UTCJul 10, 01:00 UTC30m
2026-07-09 AAAAAAA - Jul 9, 05:00 UTCJul 9, 06:45 UTC1h 45m
2026-07-09 AAAAAAA - Jul 9, 01:10 UTCJul 9, 02:10 UTC1h 0m
2026-07-09 AAAAAAA - Jul 9, 00:05 UTCJul 9, 00:30 UTC25m

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.

Mode-S 71F895 frequently asked

What is Mode-S code 71F895?
71F895 is an ICAO 24-bit transponder address. Allocated to Korea, South.
Where is Mode-S 71F895 registered?
Mode-S code 71F895 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 71F895 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 04:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71F895, octal 34374225, decimal 7,469,205.
What flights does 71F895 operate?
Mode-S 71F895 has broadcast 1 distinct callsign, including AAAAAAA.