Apparatus

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sensors Mode-S transponder

71C702

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

Currently assigned to HL8702 · BOEING 787-9 Dreamliner

Hex
71C702
Octal
34343402
Decimal
7,456,514
Country
KR
Tail
HL8702
Type
B789
No current signal · last broadcast 6h ago
Flights observed
245
Distinct callsigns
20
Country
KR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 71C702.

Country allocation

The ICAO 24-bit address 71C702 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
APZ732 - 36 2026-07-11
APZ731 - 36 2026-07-11
APZ735 - 23 2026-07-02
APZ602 - 21 2026-07-10
APZ601 - 20 2026-07-10
APZ736 - 19 2026-07-02
APZ151 - 13 2026-07-13
APZ152 - 11 2026-07-14
APZ801 - 9 2026-07-13
APZ112 - 9 2026-07-05
APZ104 - 9 2026-06-16
APZ111 - 8 2026-07-05
APZ103 - 7 2026-06-15
APZ621 - 6 2026-06-28
APZ802 - 5 2026-07-13
APZ733 - 5 2026-07-07
APZ734 - 4 2026-07-07
HL8702 - 1 2026-05-27
APZ622 - 1 2026-04-12
APZ114 - 1 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 APZ152 - Jul 14, 00:40 UTCJul 14, 01:05 UTC25m
2026-07-13 APZ151 - Jul 13, 13:50 UTCJul 13, 22:00 UTC8h 10m
2026-07-13 APZ802 HKG → ICN Jul 13, 06:01 UTCJul 13, 09:10 UTC3h 10m
2026-07-13 APZ801 ICN → HKG Jul 13, 00:45 UTCJul 13, 03:40 UTC2h 55m
2026-07-11 APZ114 - Jul 11, 22:50 UTCJul 12, 10:10 UTC11h 20m
2026-07-11 APZ113 ICN → SFO Jul 11, 09:15 UTCJul 11, 19:50 UTC10h 35m
2026-07-11 APZ732 NRT → ICN Jul 11, 03:50 UTCJul 11, 05:35 UTC1h 45m
2026-07-11 APZ731 ICN → NRT Jul 11, 00:05 UTCJul 11, 01:55 UTC1h 50m
2026-07-10 APZ602 - Jul 10, 17:20 UTCJul 10, 21:10 UTC3h 51m
2026-07-10 APZ602 - Jul 10, 16:10 UTCJul 10, 16:25 UTC15m
2026-07-10 APZ601 ICN → BKK Jul 10, 08:55 UTCJul 10, 13:40 UTC4h 45m
2026-07-10 APZ732 NRT → ICN Jul 10, 04:00 UTCJul 10, 05:55 UTC1h 55m
2026-07-10 APZ731 ICN → NRT Jul 10, 00:05 UTCJul 10, 02:00 UTC1h 55m
2026-07-09 APZ602 - Jul 9, 15:55 UTCJul 9, 20:40 UTC4h 45m
2026-07-09 APZ601 ICN → BKK Jul 9, 08:45 UTCJul 9, 13:35 UTC4h 50m
2026-07-09 APZ732 NRT → ICN Jul 9, 04:05 UTCJul 9, 05:55 UTC1h 50m
2026-07-09 APZ731 ICN → NRT Jul 9, 00:10 UTCJul 9, 02:00 UTC1h 50m
2026-07-07 APZ602 BKK → ICN Jul 7, 16:05 UTCJul 7, 21:00 UTC4h 55m
2026-07-07 APZ601 ICN → BKK Jul 7, 08:25 UTCJul 7, 13:30 UTC5h 5m
2026-07-07 APZ734 NRT → ICN Jul 7, 04:35 UTCJul 7, 06:25 UTC1h 50m
2026-07-07 APZ733 - Jul 7, 00:40 UTCJul 7, 02:35 UTC1h 55m
2026-07-05 APZ112 - Jul 5, 22:50 UTCJul 6, 10:35 UTC11h 45m
2026-07-05 APZ111 ICN → SFO Jul 5, 09:20 UTCJul 5, 19:15 UTC9h 55m
2026-07-04 APZ732 NRT → ICN Jul 4, 03:50 UTCJul 4, 05:45 UTC1h 55m
2026-07-04 APZ731 ICN → NRT Jul 4, 00:15 UTCJul 4, 02:00 UTC1h 45m
2026-07-03 APZ602 - Jul 3, 16:10 UTCJul 3, 21:00 UTC4h 50m
2026-07-03 APZ601 ICN → BKK Jul 3, 08:35 UTCJul 3, 13:30 UTC4h 55m
2026-07-02 APZ736 NRT → ICN Jul 2, 09:00 UTCJul 2, 11:00 UTC2h 0m
2026-07-02 APZ735 - Jul 2, 05:05 UTCJul 2, 07:05 UTC2h 0m
2026-07-01 APZ112 GMP → ICN Jul 1, 08:30 UTCJul 1, 08:55 UTC25m
2026-06-30 APZ112 - Jun 30, 18:55 UTCJul 1, 06:50 UTC11h 55m
2026-06-29 APZ111 - Jun 29, 09:10 UTCJun 29, 19:05 UTC9h 55m
2026-06-29 APZ732 NRT → ICN Jun 29, 03:54 UTCJun 29, 05:50 UTC1h 55m
2026-06-29 APZ731 - Jun 29, 00:00 UTCJun 29, 01:44 UTC1h 45m
2026-06-28 APZ621 ICN → ICN Jun 28, 09:15 UTCJun 28, 20:09 UTC10h 55m
2026-06-28 APZ732 NRT → ICN Jun 28, 03:59 UTCJun 28, 05:49 UTC1h 50m
2026-06-28 APZ731 ICN → NRT Jun 28, 00:09 UTCJun 28, 01:55 UTC1h 45m
2026-06-27 APZ736 NRT → ICN Jun 27, 12:09 UTCJun 27, 14:05 UTC1h 55m
2026-06-27 APZ735 ICN → NRT Jun 27, 08:05 UTCJun 27, 10:00 UTC1h 55m
2026-06-27 APZ732 - Jun 27, 04:00 UTCJun 27, 05:55 UTC1h 55m
2026-06-27 APZ731 ICN → NRT Jun 27, 00:10 UTCJun 27, 01:59 UTC1h 50m
2026-06-26 APZ602 BKK → ICN Jun 26, 17:35 UTCJun 26, 22:19 UTC4h 45m
2026-06-26 APZ601 ICN → BKK Jun 26, 09:10 UTCJun 26, 13:59 UTC4h 50m
2026-06-26 APZ732 NRT → ICN Jun 26, 04:59 UTCJun 26, 06:54 UTC1h 55m
2026-06-26 APZ731 - Jun 26, 00:05 UTCJun 26, 01:54 UTC1h 50m
2026-06-25 APZ736 NRT → ICN Jun 25, 09:05 UTCJun 25, 10:59 UTC1h 55m
2026-06-25 APZ735 ICN → NRT Jun 25, 05:20 UTCJun 25, 07:19 UTC2h 0m
2026-06-24 APZ802 HKG → ICN Jun 24, 05:44 UTCJun 24, 08:49 UTC3h 5m
2026-06-24 APZ801 - Jun 24, 03:29 UTCJun 24, 03:44 UTC15m
2026-06-24 APZ801 - Jun 24, 00:49 UTCJun 24, 02:54 UTC2h 5m

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 HL8702 page for operator, model, and routing details .

Mode-S 71C702 frequently asked

What is Mode-S code 71C702?
71C702 is an ICAO 24-bit transponder address. Allocated to Korea, South. Assigned to HL8702.
Where is Mode-S 71C702 registered?
Mode-S code 71C702 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 71C702 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 71C702, octal 34343402, decimal 7,456,514.
What flights does 71C702 operate?
Mode-S 71C702 has broadcast 20 distinct callsigns, including APZ732, APZ731, APZ735, APZ602, APZ601.