sensors Mode-S transponder

71C395

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

Currently assigned to HL8395 · AIRBUS A-321neo

Hex
71C395
Octal
34341625
Decimal
7,455,637
Country
KR
Tail
HL8395
Type
A21N
Broadcasting now · callsign ABL795 · 12,025 ft
Flights observed
8
Distinct callsigns
6
Country
KR
Last broadcast
16h ago

Current position

71C395 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C395 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 6 distinct

Callsign Airline Flights Last seen
ABL725 - 3 2026-04-13
ABL8823 - 1 2026-04-14
ABL8820 - 1 2026-04-14
ABL8819 - 1 2026-04-14
ABL8812 Air Busan 1 2026-04-14
ABL726 Air Busan 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 ABL8823 - Apr 14, 10:00 UTCApr 14, 10:30 UTC30m
2026-04-14 ABL8820 - Apr 14, 08:30 UTCApr 14, 09:00 UTC30m
2026-04-14 ABL8819 - Apr 14, 06:45 UTCApr 14, 07:10 UTC25m
2026-04-14 ABL8812 PUS → GMP Apr 14, 05:15 UTCApr 14, 05:35 UTC20m
2026-04-13 ABL726 BKK → PUS Apr 13, 16:20 UTCApr 13, 19:35 UTC3h 15m
2026-04-13 ABL725 - Apr 13, 14:15 UTCApr 13, 14:35 UTC20m
2026-04-13 ABL725 - Apr 13, 11:55 UTCApr 13, 12:10 UTC15m
2026-04-13 ABL725 - Apr 13, 09:35 UTCApr 13, 12:10 UTC2h 35m

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 HL8395 page for operator, model, and routing details .

Mode-S 71C395 frequently asked

What is Mode-S code 71C395?
71C395 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8395.
Where is Mode-S 71C395 registered?
Mode-S code 71C395 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 71C395 broadcasting right now?
Yes. Mode-S 71C395 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C395, octal 34341625, decimal 7,455,637.
What flights does 71C395 operate?
Mode-S 71C395 has broadcast 6 distinct callsigns, including ABL725, ABL8823, ABL8820, ABL8819, ABL8812.