Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

71C328

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

Currently assigned to HL8328 · AIRBUS A-320

Hex
71C328
Octal
34341450
Decimal
7,455,528
Country
KR
Tail
HL8328
Type
A320
Transponder active on ground
Flights observed
420
Distinct callsigns
20
Country
KR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 71C328.

Country allocation

The ICAO 24-bit address 71C328 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
ABL8019 - 31 2026-07-13
ABL8818 - 30 2026-07-13
ABL8817 - 25 2026-07-13
ABL8808 - 25 2026-07-13
ABL8804 - 25 2026-07-14
ABL8809 - 24 2026-07-13
ABL133 - 14 2026-07-05
ABL8827 - 13 2026-07-11
ABL8822 - 13 2026-07-11
ABL8821 - 13 2026-07-11
ABL8816 - 13 2026-07-11
ABL134 - 13 2026-07-05
ABL8024 - 12 2026-07-10
ABL8013 - 11 2026-07-10
ABL321 - 11 2026-07-12
ABL8301 - 7 2026-07-11
ABL8300 - 7 2026-07-11
ABL8108 - 7 2026-07-11
ABL8813 - 6 2026-07-07
ABL8806 - 6 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ABL8804 PUS → GMP Jul 14, 00:10 UTCJul 14, 00:50 UTC40m
2026-07-13 ABL8114 - Jul 13, 11:25 UTCJul 13, 11:45 UTC20m
2026-07-13 ABL8019 - Jul 13, 09:10 UTCJul 13, 09:45 UTC35m
2026-07-13 ABL8818 PUS → GMP Jul 13, 07:20 UTCJul 13, 08:05 UTC45m
2026-07-13 ABL8817 GMP → PUS Jul 13, 05:40 UTCJul 13, 06:20 UTC40m
2026-07-13 ABL8808 PUS → GMP Jul 13, 03:55 UTCJul 13, 04:40 UTC45m
2026-07-13 ABL8809 GMP → PUS Jul 13, 01:55 UTCJul 13, 02:40 UTC45m
2026-07-13 ABL8804 PUS → GMP Jul 13, 00:10 UTCJul 13, 00:55 UTC45m
2026-07-12 ABL8114 - Jul 12, 11:15 UTCJul 12, 11:35 UTC20m
2026-07-12 ABL8019 - Jul 12, 09:10 UTCJul 12, 09:50 UTC40m
2026-07-12 ABL8818 PUS → GMP Jul 12, 07:25 UTCJul 12, 08:10 UTC45m
2026-07-12 ABL321 PUS → PUS Jul 12, 01:45 UTCJul 12, 06:15 UTC4h 30m
2026-07-11 ABL8827 GMP → PUS Jul 11, 11:10 UTCJul 11, 12:00 UTC50m
2026-07-11 ABL8822 PUS → GMP Jul 11, 09:30 UTCJul 11, 10:10 UTC40m
2026-07-11 ABL8821 GMP → PUS Jul 11, 08:01 UTCJul 11, 08:45 UTC45m
2026-07-11 ABL8816 PUS → GMP Jul 11, 06:25 UTCJul 11, 07:05 UTC40m
2026-07-11 ABL8108 - Jul 11, 05:10 UTCJul 11, 05:35 UTC25m
2026-07-11 ABL8301 - Jul 11, 03:01 UTCJul 11, 03:15 UTC15m
2026-07-11 ABL8300 - Jul 11, 00:50 UTCJul 11, 01:10 UTC20m
2026-07-10 ABL8013 - Jul 10, 22:25 UTCJul 10, 23:00 UTC35m
2026-07-10 ABL8024 - Jul 10, 12:00 UTCJul 10, 12:45 UTC45m
2026-07-10 ABL8019 - Jul 10, 10:00 UTCJul 10, 10:35 UTC35m
2026-07-10 ABL8818 PUS → GMP Jul 10, 08:05 UTCJul 10, 08:55 UTC50m
2026-07-10 ABL8817 GMP → PUS Jul 10, 06:10 UTCJul 10, 07:00 UTC50m
2026-07-10 ABL8808 PUS → GMP Jul 10, 04:05 UTCJul 10, 04:50 UTC45m
2026-07-10 ABL8809 - Jul 10, 01:55 UTCJul 10, 03:00 UTC1h 5m
2026-07-10 ABL8804 PUS → GMP Jul 10, 00:05 UTCJul 10, 00:50 UTC45m
2026-07-09 ABL8114 - Jul 9, 11:25 UTCJul 9, 12:00 UTC35m
2026-07-09 ABL8019 - Jul 9, 09:20 UTCJul 9, 10:05 UTC45m
2026-07-09 ABL8818 PUS → GMP Jul 9, 07:35 UTCJul 9, 08:20 UTC45m
2026-07-09 ABL8817 GMP → PUS Jul 9, 05:50 UTCJul 9, 06:35 UTC45m
2026-07-09 ABL8808 PUS → GMP Jul 9, 04:10 UTCJul 9, 04:55 UTC45m
2026-07-09 ABL8809 GMP → PUS Jul 9, 02:15 UTCJul 9, 03:10 UTC55m
2026-07-09 ABL8804 PUS → GMP Jul 9, 00:10 UTCJul 9, 01:00 UTC50m
2026-07-08 ABL8827 GMP → PUS Jul 8, 11:20 UTCJul 8, 12:10 UTC50m
2026-07-08 ABL8822 PUS → GMP Jul 8, 09:40 UTCJul 8, 10:30 UTC50m
2026-07-08 ABL8821 GMP → PUS Jul 8, 08:00 UTCJul 8, 08:45 UTC45m
2026-07-08 ABL8816 PUS → GMP Jul 8, 06:25 UTCJul 8, 07:10 UTC45m
2026-07-08 ABL8108 - Jul 8, 05:00 UTCJul 8, 05:15 UTC15m
2026-07-08 ABL8301 - Jul 8, 03:10 UTCJul 8, 03:25 UTC15m
2026-07-08 ABL8300 - Jul 8, 01:45 UTCJul 8, 02:05 UTC20m
2026-07-07 ABL8013 - Jul 7, 22:50 UTCJul 7, 23:30 UTC40m
2026-07-07 ABL8024 - Jul 7, 11:40 UTCJul 7, 12:20 UTC40m
2026-07-07 ABL8305 - Jul 7, 09:05 UTCJul 7, 09:20 UTC15m
2026-07-07 ABL8304 - Jul 7, 07:45 UTCJul 7, 07:55 UTC10m
2026-07-07 ABL8115 - Jul 7, 05:45 UTCJul 7, 06:05 UTC20m
2026-07-07 ABL8813 GMP → PUS Jul 7, 03:55 UTCJul 7, 04:40 UTC45m
2026-07-07 ABL8806 PUS → GMP Jul 7, 02:05 UTCJul 7, 02:55 UTC50m
2026-07-07 ABL8807 GMP → PUS Jul 7, 00:20 UTCJul 7, 01:05 UTC45m
2026-07-06 ABL8802 PUS → GMP Jul 6, 22:30 UTCJul 6, 23:15 UTC45m

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 HL8328 page for operator, model, and routing details .

Mode-S 71C328 frequently asked

What is Mode-S code 71C328?
71C328 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8328.
Where is Mode-S 71C328 registered?
Mode-S code 71C328 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 71C328 broadcasting right now?
Mode-S 71C328 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C328, octal 34341450, decimal 7,455,528.
What flights does 71C328 operate?
Mode-S 71C328 has broadcast 20 distinct callsigns, including ABL8019, ABL8818, ABL8817, ABL8808, ABL8804.