Apparatus

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sensors Mode-S transponder

789239

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LDP · AIRBUS A-330-200

Hex
789239
Octal
36111071
Decimal
7,901,753
Country
CN
Tail
B-LDP
Type
A332
No current signal · last broadcast 1h ago
Flights observed
199
Distinct callsigns
18
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 789239.

Country allocation

The ICAO 24-bit address 789239 falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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
AHK783 - 53 2026-07-10
AHK831 - 26 2026-07-10
AHK782 - 24 2026-07-14
AHK842 - 23 2026-07-11
AHK327 - 16 2026-07-08
AHK326 - 14 2026-07-09
AHK129 Air Hong Kong 10 2026-06-11
AHK128 Air Hong Kong 10 2026-06-10
AHK842D Air Hong Kong 5 2026-06-05
AHK316 Air Hong Kong 4 2026-06-26
AHK769 - 3 2026-07-01
AHK768 - 3 2026-06-30
CPA2015 Cathay Pacific 2 2026-04-24
AHK317 Air Hong Kong 2 2026-05-29
CPA2026 Cathay Pacific 1 2026-04-24
AHK681 Air Hong Kong 1 2026-05-12
AHK680 Air Hong Kong 1 2026-05-11
AHK119 Air Hong Kong 1 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AHK782 - Jul 14, 20:05 UTCJul 14, 20:15 UTC10m
2026-07-13 AHK782 - Jul 13, 20:40 UTCJul 14, 16:45 UTC20h 5m
2026-07-13 AHK782 HKG → HKG Jul 13, 10:00 UTCJul 13, 17:05 UTC7h 5m
2026-07-12 AHK782 HKG → HKG Jul 12, 20:25 UTCJul 13, 03:50 UTC7h 25m
2026-07-11 AHK842 - Jul 11, 16:50 UTCJul 11, 17:10 UTC20m
2026-07-11 AHK842 - Jul 11, 14:50 UTCJul 11, 15:00 UTC10m
2026-07-10 AHK831 - Jul 10, 22:35 UTCJul 10, 23:00 UTC25m
2026-07-10 AHK831 - Jul 10, 20:45 UTCJul 10, 20:55 UTC10m
2026-07-10 AHK783 - Jul 10, 15:25 UTCJul 10, 16:50 UTC1h 25m
2026-07-09 AHK783 - Jul 9, 20:20 UTCJul 10, 16:50 UTC20h 30m
2026-07-09 AHK782 HKG → HKG Jul 9, 20:10 UTCJul 10, 16:50 UTC20h 40m
2026-07-09 AHK326 - Jul 9, 16:55 UTCJul 9, 17:10 UTC15m
2026-07-09 AHK326 - Jul 9, 13:50 UTCJul 9, 14:15 UTC25m
2026-07-08 AHK327 - Jul 8, 23:10 UTCJul 8, 23:40 UTC30m
2026-07-08 AHK327 - Jul 8, 20:40 UTCJul 8, 20:55 UTC15m
2026-07-08 AHK783 - Jul 8, 15:40 UTCJul 8, 17:00 UTC1h 20m
2026-07-07 AHK782 - Jul 7, 20:15 UTCJul 7, 21:45 UTC1h 30m
2026-07-07 AHK783 - Jul 7, 15:40 UTCJul 7, 17:05 UTC1h 25m
2026-07-06 AHK782 - Jul 6, 20:20 UTCJul 6, 21:50 UTC1h 30m
2026-07-06 AHK783 - Jul 6, 15:35 UTCJul 6, 16:55 UTC1h 20m
2026-07-04 AHK782 - Jul 4, 20:45 UTCJul 4, 21:00 UTC15m
2026-07-03 AHK783 - Jul 3, 22:25 UTCJul 4, 17:10 UTC18h 45m
2026-07-03 AHK782 - Jul 3, 21:35 UTCJul 4, 17:10 UTC19h 35m
2026-07-03 AHK783 - Jul 3, 18:55 UTCJul 3, 19:05 UTC10m
2026-07-03 AHK783 - Jul 3, 17:50 UTCJul 3, 18:20 UTC30m
2026-07-02 AHK782 - Jul 2, 20:35 UTCJul 3, 18:20 UTC21h 45m
2026-07-02 AHK783 - Jul 2, 16:40 UTCJul 2, 17:00 UTC20m
2026-07-01 AHK782 - Jul 1, 20:30 UTCJul 2, 16:10 UTC19h 40m
2026-07-01 AHK769 - Jul 1, 13:45 UTCJul 1, 16:35 UTC2h 50m
2026-06-30 AHK768 - Jun 30, 19:45 UTCJun 30, 20:05 UTC20m
2026-06-30 AHK783 - Jun 30, 17:15 UTCJun 30, 17:30 UTC15m
2026-06-30 AHK783 - Jun 30, 16:10 UTCJun 30, 16:45 UTC35m
2026-06-29 AHK782 - Jun 29, 20:19 UTCJun 30, 16:45 UTC20h 25m
2026-06-27 AHK783 - Jun 27, 15:39 UTCJun 27, 17:09 UTC1h 30m
2026-06-26 AHK783 - Jun 26, 20:40 UTCJun 27, 17:09 UTC20h 30m
2026-06-26 AHK316 SIN → HKG Jun 26, 17:59 UTCJun 26, 18:20 UTC20m
2026-06-26 AHK316 SIN → HKG Jun 26, 14:50 UTCJun 26, 15:20 UTC30m
2026-06-25 AHK327 - Jun 25, 20:30 UTCJun 25, 23:30 UTC3h 0m
2026-06-25 AHK783 - Jun 25, 15:29 UTCJun 25, 16:55 UTC1h 25m
2026-06-24 AHK783 - Jun 24, 20:20 UTCJun 25, 16:55 UTC20h 35m
2026-06-24 AHK783 HKG → HKG Jun 24, 19:59 UTCJun 25, 16:55 UTC20h 55m
2026-06-24 AHK842 - Jun 24, 17:14 UTCJun 24, 17:29 UTC15m
2026-06-24 AHK842 - Jun 24, 15:05 UTCJun 24, 16:40 UTC1h 35m
2026-06-23 AHK831 HKG → BKK Jun 23, 20:10 UTCJun 23, 22:29 UTC2h 20m
2026-06-23 AHK783 - Jun 23, 15:55 UTCJun 23, 17:15 UTC1h 20m
2026-06-22 AHK783 HKG → HKG Jun 22, 20:34 UTCJun 23, 17:15 UTC20h 40m
2026-06-22 AHK783 - Jun 22, 15:45 UTCJun 22, 17:04 UTC1h 20m
2026-06-20 AHK782 - Jun 20, 20:55 UTCJun 20, 22:00 UTC1h 5m
2026-06-20 AHK783 - Jun 20, 15:19 UTCJun 20, 16:39 UTC1h 20m
2026-06-19 AHK783 HKG → HKG Jun 19, 20:40 UTCJun 20, 16:39 UTC20h 0m

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 B-LDP page for operator, model, and routing details .

Mode-S 789239 frequently asked

What is Mode-S code 789239?
789239 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LDP.
Where is Mode-S 789239 registered?
Mode-S code 789239 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789239 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789239, octal 36111071, decimal 7,901,753.
What flights does 789239 operate?
Mode-S 789239 has broadcast 18 distinct callsigns, including AHK783, AHK831, AHK782, AHK842, AHK327.