sensors Mode-S transponder

71C389

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

Currently assigned to HL8389 · BOEING 787-9 Dreamliner

Hex
71C389
Octal
34341611
Decimal
7,455,625
Country
KR
Tail
HL8389
Type
B789
Broadcasting now · callsign APZ131 · 7,200 ft
Flights observed
72
Distinct callsigns
18
Country
KR
Last broadcast
5h ago

Current position

71C389 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 71C389 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 18 distinct

Callsign Airline Flights Last seen
APZ102 Air Premiea 15 2026-05-26
APZ101 Air Premiea 15 2026-05-26
APZ131 Air Premiea 7 2026-05-29
APZ132 Air Premiea 6 2026-05-25
APZ622 Air Premiea 4 2026-05-14
APZ621 Air Premiea 4 2026-05-14
APZ112 Air Premiea 3 2026-05-27
APZ111 Air Premiea 3 2026-05-27
APZ801 Air Premiea 2 2026-05-04
APZ152 Air Premiea 2 2026-05-14
APZ151 Air Premiea 2 2026-05-13
APZ136 Air Premiea 2 2026-05-01
APZ135 Air Premiea 2 2026-05-01
APZ802 Air Premiea 1 2026-05-04
APZ512F - 1 2026-05-23
APZ511F - 1 2026-05-16
APZ104 Air Premiea 1 2026-04-23
APZ103 Air Premiea 1 2026-04-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 APZ131 ICN → EWR May 29, 12:50 UTCMay 29, 19:45 UTC6h 55m
2026-05-27 APZ112 SFO → ICN May 27, 22:50 UTCMay 28, 10:45 UTC11h 55m
2026-05-27 APZ111 ICN → SFO May 27, 09:00 UTCMay 27, 19:15 UTC10h 15m
2026-05-26 APZ102 LAX → ICN May 26, 18:05 UTCMay 27, 07:00 UTC12h 56m
2026-05-26 APZ101 ICN → LAX May 26, 04:20 UTCMay 26, 14:50 UTC10h 30m
2026-05-25 APZ132 EWR → ICN May 25, 06:00 UTCMay 25, 19:40 UTC13h 39m
2026-05-25 APZ131 ICN → EWR May 25, 01:55 UTCMay 25, 02:00 UTC5m
2026-05-24 APZ131 ICN → EWR May 24, 12:40 UTCMay 24, 23:46 UTC11h 6m
2026-05-23 APZ512F - May 23, 22:10 UTCMay 23, 22:50 UTC40m
2026-05-16 APZ511F - May 16, 18:05 UTCMay 16, 18:30 UTC25m
2026-05-15 APZ102 LAX → ICN May 15, 18:10 UTCMay 16, 06:35 UTC12h 26m
2026-05-15 APZ101 ICN → LAX May 15, 04:10 UTCMay 15, 14:40 UTC10h 30m
2026-05-14 APZ622 DAD → ICN May 14, 21:20 UTCMay 14, 21:55 UTC35m
2026-05-14 APZ621 ICN → DAD May 14, 11:50 UTCMay 14, 20:10 UTC8h 20m
2026-05-14 APZ152 HNL → ICN May 14, 07:40 UTCMay 14, 09:45 UTC2h 5m
2026-05-14 APZ152 HNL → ICN May 14, 00:40 UTCMay 14, 01:00 UTC20m
2026-05-13 APZ151 ICN → HNL May 13, 21:15 UTCMay 13, 21:40 UTC25m
2026-05-13 APZ151 ICN → HNL May 13, 13:35 UTCMay 13, 15:30 UTC1h 55m
2026-05-12 APZ102 LAX → ICN May 12, 18:10 UTCMay 13, 06:10 UTC12h 0m
2026-05-12 APZ101 ICN → LAX May 12, 04:10 UTCMay 12, 14:40 UTC10h 30m
2026-05-11 APZ132 EWR → ICN May 11, 05:15 UTCMay 11, 19:20 UTC14h 5m
2026-05-10 APZ131 ICN → EWR May 10, 12:59 UTCMay 11, 02:05 UTC13h 5m
2026-05-09 APZ621 ICN → DAD May 9, 09:15 UTCMay 9, 19:49 UTC10h 35m
2026-05-08 APZ102 LAX → ICN May 8, 18:00 UTCMay 9, 06:45 UTC12h 45m
2026-05-08 APZ101 ICN → LAX May 8, 04:25 UTCMay 8, 14:55 UTC10h 30m
2026-05-06 APZ112 SFO → ICN May 6, 22:55 UTCMay 7, 10:45 UTC11h 50m
2026-05-06 APZ111 ICN → SFO May 6, 09:25 UTCMay 6, 19:40 UTC10h 14m
2026-05-05 APZ102 LAX → ICN May 5, 18:10 UTCMay 6, 06:25 UTC12h 14m
2026-05-05 APZ101 ICN → LAX May 5, 04:20 UTCMay 5, 15:05 UTC10h 45m
2026-05-04 APZ802 HKG → ICN May 4, 05:45 UTCMay 4, 08:35 UTC2h 50m
2026-05-04 APZ801 ICN → HKG May 4, 03:30 UTCMay 4, 03:54 UTC25m
2026-05-04 APZ801 ICN → HKG May 4, 00:30 UTCMay 4, 02:54 UTC2h 25m
2026-05-03 APZ132 EWR → ICN May 3, 05:50 UTCMay 3, 20:30 UTC14h 40m
2026-05-02 APZ131 ICN → EWR May 2, 12:45 UTCMay 3, 01:40 UTC12h 55m
2026-05-01 APZ136 IAD → ICN May 1, 17:30 UTCMay 2, 08:40 UTC15h 10m
2026-05-01 APZ135 ICN → IAD May 1, 01:15 UTCMay 1, 14:30 UTC13h 15m
2026-04-29 APZ112 SFO → ICN Apr 29, 22:50 UTCApr 30, 10:55 UTC12h 4m
2026-04-29 APZ111 ICN → SFO Apr 29, 09:25 UTCApr 29, 19:15 UTC9h 50m
2026-04-28 APZ102 LAX → ICN Apr 28, 18:00 UTCApr 29, 06:49 UTC12h 50m
2026-04-28 APZ101 ICN → LAX Apr 28, 04:15 UTCApr 28, 14:35 UTC10h 20m
2026-04-27 APZ132 EWR → ICN Apr 27, 05:15 UTCApr 27, 20:00 UTC14h 45m
2026-04-26 APZ131 ICN → EWR Apr 26, 12:45 UTCApr 27, 02:10 UTC13h 25m
2026-04-24 APZ136 IAD → ICN Apr 24, 17:50 UTCApr 25, 08:05 UTC14h 15m
2026-04-24 APZ135 ICN → IAD Apr 24, 01:20 UTCApr 24, 14:30 UTC13h 10m
2026-04-23 APZ104 LAX → ICN Apr 23, 06:45 UTCApr 23, 19:15 UTC12h 29m
2026-04-22 APZ103 ICN → LAX Apr 22, 13:35 UTCApr 22, 23:50 UTC10h 15m
2026-04-20 APZ102 LAX → ICN Apr 20, 18:05 UTCApr 21, 06:35 UTC12h 30m
2026-04-20 APZ101 ICN → LAX Apr 20, 04:10 UTCApr 20, 14:55 UTC10h 45m
2026-04-19 APZ132 EWR → ICN Apr 19, 05:25 UTCApr 19, 19:40 UTC14h 15m
2026-04-18 APZ131 ICN → EWR Apr 18, 12:55 UTCApr 19, 01:50 UTC12h 55m

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 HL8389 page for operator, model, and routing details .

Mode-S 71C389 frequently asked

What is Mode-S code 71C389?
71C389 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8389.
Where is Mode-S 71C389 registered?
Mode-S code 71C389 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 71C389 broadcasting right now?
Yes. Mode-S 71C389 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C389, octal 34341611, decimal 7,455,625.
What flights does 71C389 operate?
Mode-S 71C389 has broadcast 18 distinct callsigns, including APZ102, APZ101, APZ131, APZ132, APZ622.