Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C396

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

Currently assigned to HL8396 · AIRBUS A-321neo

Hex
71C396
Octal
34341626
Decimal
7,455,638
Country
KR
Tail
HL8396
Type
A21N
No current signal · last broadcast 46m ago
Flights observed
366
Distinct callsigns
20
Country
KR
Last broadcast
46m ago

Last known position

Most recent position reported by Mode-S 71C396.

Country allocation

The ICAO 24-bit address 71C396 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
ABL725 - 20 2026-06-23
ABL774 - 16 2026-07-02
ABL791 - 15 2026-06-30
ABL796 - 14 2026-07-02
ABL792 - 14 2026-06-30
ABL726 - 13 2026-06-23
ABL793 - 12 2026-06-26
ABL773 - 12 2026-07-02
ABL781 - 11 2026-06-28
ABL111 - 11 2026-06-30
ABL795 - 10 2026-07-02
ABL782 - 10 2026-06-28
ABL112 Air Busan 10 2026-06-29
ABL8012 - 9 2026-07-03
ABL794 - 9 2026-06-26
ABL712 Air Busan 9 2026-05-31
ABL8823 - 8 2026-06-29
ABL8820 - 8 2026-06-29
ABL8819 - 8 2026-06-29
ABL8812 - 8 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 ABL158 - Jul 15, 02:50 UTCJul 15, 03:30 UTC40m
2026-07-14 ABL165 - Jul 14, 11:20 UTCJul 14, 13:20 UTC2h 0m
2026-07-14 ABL166 - Jul 14, 07:35 UTCJul 14, 09:30 UTC1h 55m
2026-07-14 ABL171 - Jul 14, 04:15 UTCJul 14, 05:35 UTC1h 20m
2026-07-14 ABL172 - Jul 14, 00:55 UTCJul 14, 02:15 UTC1h 20m
2026-07-13 ABL788 - Jul 13, 08:55 UTCJul 13, 19:30 UTC10h 35m
2026-07-13 ABL157 - Jul 13, 05:15 UTCJul 13, 06:10 UTC55m
2026-07-13 ABL158 - Jul 13, 02:40 UTCJul 13, 03:45 UTC1h 5m
2026-07-12 ABL7485 CNX → ICN Jul 12, 17:35 UTCJul 12, 22:40 UTC5h 5m
2026-07-12 ABL7475 - Jul 12, 11:20 UTCJul 12, 16:01 UTC4h 40m
2026-07-12 ABL173 - Jul 12, 07:25 UTCJul 12, 08:45 UTC1h 20m
2026-07-12 ABL174 - Jul 12, 04:10 UTCJul 12, 05:35 UTC1h 25m
2026-07-12 ABL155 - Jul 12, 01:20 UTCJul 12, 02:20 UTC1h 0m
2026-07-11 ABL156 - Jul 11, 22:35 UTCJul 11, 23:20 UTC45m
2026-07-11 ABL173 KIX → ICN Jul 11, 07:30 UTCJul 11, 08:50 UTC1h 20m
2026-07-11 ABL174 ICN → KIX Jul 11, 04:15 UTCJul 11, 05:40 UTC1h 25m
2026-07-11 ABL155 - Jul 11, 01:10 UTCJul 11, 02:15 UTC1h 5m
2026-07-10 ABL156 - Jul 10, 22:40 UTCJul 10, 23:25 UTC45m
2026-07-10 ABL788 - Jul 10, 08:35 UTCJul 10, 19:40 UTC11h 5m
2026-07-10 ABL157 - Jul 10, 05:15 UTCJul 10, 06:15 UTC1h 0m
2026-07-10 ABL158 - Jul 10, 02:45 UTCJul 10, 03:30 UTC45m
2026-07-09 ABL7485 - Jul 9, 18:00 UTCJul 9, 22:55 UTC4h 55m
2026-07-09 ABL7475 - Jul 9, 11:30 UTCJul 9, 16:25 UTC4h 55m
2026-07-09 ABL173 KIX → ICN Jul 9, 07:15 UTCJul 9, 08:40 UTC1h 25m
2026-07-09 ABL174 - Jul 9, 04:15 UTCJul 9, 05:40 UTC1h 25m
2026-07-09 ABL155 - Jul 9, 01:15 UTCJul 9, 02:20 UTC1h 5m
2026-07-08 ABL156 - Jul 8, 23:05 UTCJul 9, 00:00 UTC55m
2026-07-08 ABL173 KIX → ICN Jul 8, 07:20 UTCJul 8, 08:45 UTC1h 25m
2026-07-08 ABL174 - Jul 8, 04:15 UTCJul 8, 05:45 UTC1h 30m
2026-07-08 ABL155 - Jul 8, 01:05 UTCJul 8, 02:05 UTC1h 0m
2026-07-07 ABL156 - Jul 7, 22:35 UTCJul 7, 23:20 UTC45m
2026-07-07 ABL787 ICN → ICN Jul 7, 08:30 UTCJul 7, 19:35 UTC11h 5m
2026-07-07 ABL157 - Jul 7, 05:15 UTCJul 7, 06:15 UTC1h 0m
2026-07-07 ABL158 - Jul 7, 02:40 UTCJul 7, 03:20 UTC40m
2026-07-06 ABL173 - Jul 6, 07:25 UTCJul 6, 08:55 UTC1h 30m
2026-07-06 ABL174 - Jul 6, 04:20 UTCJul 6, 05:40 UTC1h 20m
2026-07-06 ABL155 - Jul 6, 01:15 UTCJul 6, 02:20 UTC1h 5m
2026-07-05 ABL156 - Jul 5, 22:50 UTCJul 5, 23:45 UTC55m
2026-07-05 ABL788 - Jul 5, 08:30 UTCJul 5, 19:25 UTC10h 55m
2026-07-05 ABL157 - Jul 5, 05:15 UTCJul 5, 06:15 UTC1h 0m
2026-07-05 ABL158 - Jul 5, 02:40 UTCJul 5, 03:25 UTC45m
2026-07-04 ABL788 - Jul 4, 08:55 UTCJul 4, 19:35 UTC10h 40m
2026-07-04 ABL157 - Jul 4, 05:20 UTCJul 4, 06:20 UTC1h 0m
2026-07-04 ABL158 - Jul 4, 02:50 UTCJul 4, 03:30 UTC40m
2026-07-04 ABL802F CJU → GMP Jul 4, 00:00 UTCJul 4, 00:20 UTC20m
2026-07-03 ABL8012 - Jul 3, 11:30 UTCJul 3, 12:05 UTC35m
2026-07-03 ABL8135 - Jul 3, 09:00 UTCJul 3, 09:20 UTC20m
2026-07-03 ABL181 - Jul 3, 04:00 UTCJul 3, 06:20 UTC2h 20m
2026-07-03 ABL182 PUS → CTS Jul 3, 00:25 UTCJul 3, 02:20 UTC1h 55m
2026-07-02 ABL774 - Jul 2, 21:55 UTCJul 2, 22:25 UTC30m

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 HL8396 page for operator, model, and routing details .

Mode-S 71C396 frequently asked

What is Mode-S code 71C396?
71C396 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8396.
Where is Mode-S 71C396 registered?
Mode-S code 71C396 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 71C396 broadcasting right now?
No active broadcast right now. Last signal was 46m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C396, octal 34341626, decimal 7,455,638.
What flights does 71C396 operate?
Mode-S 71C396 has broadcast 20 distinct callsigns, including ABL725, ABL774, ABL791, ABL796, ABL792.