Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

789240

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LDR · AIRBUS A-330-300

Hex
789240
Octal
36111100
Decimal
7,901,760
Country
CN
Tail
B-LDR
Type
A333
No current signal · last broadcast 7h ago
Flights observed
58
Distinct callsigns
15
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 789240.

Country allocation

The ICAO 24-bit address 789240 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 15 distinct

Callsign Airline Flights Last seen
AHK209 Air Hong Kong 8 2026-05-29
AHK208 Air Hong Kong 8 2026-05-28
AHK217 Air Hong Kong 6 2026-05-20
AHK721 Air Hong Kong 5 2026-05-27
AHK720 Air Hong Kong 5 2026-05-26
AHK457 Air Hong Kong 5 2026-05-29
AHK216 Air Hong Kong 5 2026-05-19
AHK456 Air Hong Kong 4 2026-05-16
AHK562 Air Hong Kong 3 2026-05-28
AHK561 Air Hong Kong 3 2026-05-27
AHK680 Air Hong Kong 2 2026-05-21
CPA2015 Cathay Pacific 1 2026-04-29
AHK681 Air Hong Kong 1 2026-05-22
AHK591 Air Hong Kong 1 2026-05-22
AHK572 Air Hong Kong 1 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AHK457 HKG → MNL May 29, 23:35 UTCMay 30, 00:00 UTC25m
2026-05-29 AHK457 HKG → MNL May 29, 20:00 UTCMay 29, 21:35 UTC1h 35m
2026-05-29 AHK209 NRT → HKG May 29, 12:50 UTCMay 29, 17:00 UTC4h 10m
2026-05-28 AHK208 HKG → NRT May 28, 20:05 UTCMay 28, 23:55 UTC3h 50m
2026-05-28 AHK562 SGN → HKG May 28, 17:05 UTCMay 28, 17:20 UTC15m
2026-05-27 AHK561 HKG → SGN May 27, 20:10 UTCMay 27, 20:25 UTC15m
2026-05-27 AHK721 CTU → HKG May 27, 17:25 UTCMay 27, 17:50 UTC25m
2026-05-26 AHK720 HKG → CTU May 26, 20:40 UTCMay 27, 17:50 UTC21h 10m
2026-05-26 AHK721 CTU → HKG May 26, 17:59 UTCMay 26, 18:30 UTC30m
2026-05-25 AHK720 HKG → CTU May 25, 20:34 UTCMay 25, 20:50 UTC15m
2026-05-25 AHK721 CTU → HKG May 25, 17:25 UTCMay 25, 17:50 UTC25m
2026-05-23 AHK720 HKG → CTU May 23, 20:30 UTCMay 23, 20:50 UTC20m
2026-05-23 AHK572 PEN → SGN May 23, 16:15 UTCMay 23, 16:35 UTC20m
2026-05-22 AHK591 HKG → PEN May 22, 20:35 UTCMay 22, 20:55 UTC20m
2026-05-22 AHK681 TPE → HKG May 22, 15:50 UTCMay 22, 17:05 UTC1h 15m
2026-05-21 AHK680 HKG → TPE May 21, 20:40 UTCMay 21, 22:00 UTC1h 20m
2026-05-21 AHK721 CTU → HKG May 21, 17:20 UTCMay 21, 17:55 UTC35m
2026-05-20 AHK720 HKG → CTU May 20, 20:40 UTCMay 21, 17:55 UTC21h 15m
2026-05-20 AHK217 NGO → HKG May 20, 12:55 UTCMay 20, 16:20 UTC3h 25m
2026-05-19 AHK216 HKG → NGO May 19, 20:05 UTCMay 19, 23:15 UTC3h 10m
2026-05-19 AHK209 NRT → HKG May 19, 12:50 UTCMay 19, 16:45 UTC3h 55m
2026-05-18 AHK208 HKG → NRT May 18, 19:50 UTCMay 18, 23:50 UTC4h 0m
2026-05-18 AHK217 NGO → HKG May 18, 13:05 UTCMay 18, 16:30 UTC3h 25m
2026-05-16 AHK216 HKG → NGO May 16, 20:15 UTCMay 16, 23:30 UTC3h 15m
2026-05-16 AHK456 MNL → HKG May 16, 15:35 UTCMay 16, 17:10 UTC1h 35m
2026-05-15 AHK456 MNL → HKG May 15, 23:50 UTCMay 16, 12:16 UTC12h 26m
2026-05-15 AHK457 HKG → MNL May 15, 20:25 UTCMay 15, 22:00 UTC1h 35m
2026-05-15 AHK209 NRT → HKG May 15, 12:45 UTCMay 15, 16:30 UTC3h 44m
2026-05-14 AHK208 HKG → NRT May 14, 20:00 UTCMay 14, 23:45 UTC3h 45m
2026-04-29 CPA2015 TPE → HKG Apr 29, 00:05 UTCApr 29, 01:30 UTC1h 25m
2026-04-28 AHK680 HKG → TPE Apr 28, 20:55 UTCApr 28, 22:15 UTC1h 20m
2026-04-28 AHK721 CTU → HKG Apr 28, 17:35 UTCApr 28, 18:05 UTC30m
2026-04-27 AHK720 HKG → CTU Apr 27, 21:05 UTCApr 28, 18:05 UTC21h 0m
2026-04-27 AHK209 NRT → HKG Apr 27, 12:50 UTCApr 27, 17:15 UTC4h 25m
2026-04-25 AHK208 HKG → NRT Apr 25, 20:25 UTCApr 25, 23:50 UTC3h 25m
2026-04-25 AHK209 NRT → HKG Apr 25, 12:30 UTCApr 25, 17:10 UTC4h 40m
2026-04-24 AHK208 HKG → NRT Apr 24, 20:35 UTCApr 24, 23:50 UTC3h 15m
2026-04-24 AHK562 SGN → HKG Apr 24, 17:45 UTCApr 24, 17:50 UTC5m
2026-04-24 AHK562 SGN → HKG Apr 24, 15:45 UTCApr 24, 15:55 UTC10m
2026-04-23 AHK561 HKG → SGN Apr 23, 20:15 UTCApr 23, 20:30 UTC15m
2026-04-23 AHK209 NRT → HKG Apr 23, 12:50 UTCApr 23, 17:35 UTC4h 45m
2026-04-22 AHK208 HKG → NRT Apr 22, 20:40 UTCApr 23, 00:10 UTC3h 30m
2026-04-22 AHK209 NRT → HKG Apr 22, 12:55 UTCApr 22, 17:15 UTC4h 20m
2026-04-21 AHK208 HKG → NRT Apr 21, 19:55 UTCApr 21, 23:40 UTC3h 45m
2026-04-21 AHK217 NGO → HKG Apr 21, 13:05 UTCApr 21, 16:50 UTC3h 45m
2026-04-20 AHK216 HKG → NGO Apr 20, 20:25 UTCApr 20, 21:45 UTC1h 20m
2026-04-20 AHK209 NRT → HKG Apr 20, 12:45 UTCApr 20, 17:10 UTC4h 25m
2026-04-18 AHK208 HKG → NRT Apr 18, 20:25 UTCApr 18, 23:50 UTC3h 25m
2026-04-18 AHK217 NGO → HKG Apr 18, 14:30 UTCApr 18, 16:25 UTC1h 55m
2026-04-16 AHK216 - Apr 16, 21:14 UTCApr 16, 21:39 UTC25m

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-LDR page for operator, model, and routing details .

Mode-S 789240 frequently asked

What is Mode-S code 789240?
789240 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LDR.
Where is Mode-S 789240 registered?
Mode-S code 789240 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789240 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789240, octal 36111100, decimal 7,901,760.
What flights does 789240 operate?
Mode-S 789240 has broadcast 15 distinct callsigns, including AHK209, AHK208, AHK217, AHK721, AHK720.