Apparatus

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sensors Mode-S transponder

78923F

ICAO 24-bit transponder address · allocated to China

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

Hex
78923F
Octal
36111077
Decimal
7,901,759
Country
CN
Tail
B-LDQ
Type
A333
No current signal · last broadcast 3h ago
Flights observed
87
Distinct callsigns
18
Country
CN
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 78923F.

Country allocation

The ICAO 24-bit address 78923F 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
AHK456 Air Hong Kong 17 2026-05-29
AHK457 Air Hong Kong 16 2026-05-28
AHK681 Air Hong Kong 9 2026-05-28
AHK680 Air Hong Kong 7 2026-05-27
AHK209 Air Hong Kong 6 2026-05-12
AHK208 Air Hong Kong 6 2026-05-29
AHK769 Air Hong Kong 4 2026-05-20
AHK768 Air Hong Kong 3 2026-05-19
AHK562 Air Hong Kong 3 2026-05-11
AHK561 Air Hong Kong 3 2026-05-09
AHK721 Air Hong Kong 2 2026-05-09
AHK720 Air Hong Kong 2 2026-05-07
AHK205 Air Hong Kong 2 2026-05-13
AHK204 Air Hong Kong 2 2026-05-12
AHK119 Air Hong Kong 2 2026-05-02
AHK217 Air Hong Kong 1 2026-04-22
AHK216 Air Hong Kong 1 2026-04-21
AHK128 Air Hong Kong 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AHK208 HKG → NRT May 29, 20:25 UTCMay 30, 00:05 UTC3h 40m
2026-05-29 AHK456 MNL → HKG May 29, 15:50 UTCMay 29, 17:30 UTC1h 40m
2026-05-28 AHK456 MNL → HKG May 28, 23:40 UTCMay 29, 12:45 UTC13h 5m
2026-05-28 AHK457 HKG → MNL May 28, 20:10 UTCMay 28, 22:00 UTC1h 50m
2026-05-28 AHK681 TPE → HKG May 28, 14:50 UTCMay 28, 16:00 UTC1h 10m
2026-05-27 AHK680 HKG → TPE May 27, 21:00 UTCMay 27, 22:25 UTC1h 25m
2026-05-20 AHK769 PEK → HKG May 20, 14:15 UTCMay 20, 17:15 UTC3h 0m
2026-05-19 AHK768 HKG → PEK May 19, 19:40 UTCMay 19, 19:55 UTC15m
2026-05-19 AHK456 MNL → HKG May 19, 15:10 UTCMay 19, 16:50 UTC1h 40m
2026-05-18 AHK456 MNL → HKG May 18, 23:20 UTCMay 19, 12:25 UTC13h 5m
2026-05-18 AHK457 HKG → MNL May 18, 20:10 UTCMay 18, 21:55 UTC1h 45m
2026-05-16 AHK681 TPE → HKG May 16, 14:55 UTCMay 16, 16:20 UTC1h 25m
2026-05-15 AHK680 HKG → TPE May 15, 21:15 UTCMay 15, 22:30 UTC1h 15m
2026-05-15 AHK456 MNL → HKG May 15, 15:05 UTCMay 15, 16:50 UTC1h 45m
2026-05-14 AHK457 HKG → MNL May 14, 23:35 UTCMay 15, 12:50 UTC13h 15m
2026-05-14 AHK457 HKG → MNL May 14, 19:55 UTCMay 14, 21:55 UTC2h 0m
2026-05-14 AHK681 TPE → HKG May 14, 14:45 UTCMay 14, 16:10 UTC1h 25m
2026-05-13 AHK680 HKG → TPE May 13, 20:45 UTCMay 13, 22:05 UTC1h 20m
2026-05-13 AHK205 KIX → HKG May 13, 13:10 UTCMay 13, 16:40 UTC3h 30m
2026-05-12 AHK204 HKG → KIX May 12, 19:35 UTCMay 12, 22:45 UTC3h 10m
2026-05-12 AHK209 NRT → HKG May 12, 16:40 UTCMay 12, 17:00 UTC20m
2026-05-12 AHK209 NRT → HKG May 12, 12:45 UTCMay 12, 16:05 UTC3h 20m
2026-05-11 AHK208 HKG → NRT May 11, 20:00 UTCMay 11, 22:35 UTC2h 34m
2026-05-11 AHK562 SGN → HKG May 11, 17:15 UTCMay 11, 17:20 UTC5m
2026-05-09 AHK561 HKG → SGN May 9, 22:10 UTCMay 9, 22:25 UTC15m
2026-05-09 AHK721 CTU → HKG May 9, 17:30 UTCMay 9, 17:55 UTC25m
2026-05-07 AHK720 HKG → CTU May 7, 20:45 UTCMay 7, 21:00 UTC15m
2026-05-07 AHK209 NRT → HKG May 7, 12:50 UTCMay 7, 16:50 UTC4h 0m
2026-05-06 AHK208 HKG → NRT May 6, 19:45 UTCMay 6, 23:30 UTC3h 45m
2026-05-06 AHK681 TPE → HKG May 6, 14:45 UTCMay 6, 16:05 UTC1h 20m
2026-05-05 AHK680 HKG → TPE May 5, 21:01 UTCMay 5, 22:20 UTC1h 20m
2026-05-05 AHK562 SGN → HKG May 5, 17:10 UTCMay 5, 17:15 UTC5m
2026-05-04 AHK561 HKG → SGN May 4, 20:15 UTCMay 4, 20:35 UTC20m
2026-05-04 AHK456 MNL → HKG May 4, 15:15 UTCMay 4, 16:55 UTC1h 40m
2026-05-04 AHK456 MNL → HKG May 4, 12:30 UTCMay 4, 13:05 UTC35m
2026-05-02 AHK457 HKG → MNL May 2, 23:05 UTCMay 2, 23:35 UTC30m
2026-05-02 AHK457 HKG → MNL May 2, 19:55 UTCMay 2, 21:35 UTC1h 40m
2026-05-02 AHK119 ICN → HKG May 2, 15:20 UTCMay 2, 15:50 UTC30m
2026-05-02 AHK119 ICN → HKG May 2, 12:20 UTCMay 2, 14:45 UTC2h 25m
2026-05-01 AHK128 HKG → ICN May 1, 20:20 UTCMay 1, 23:10 UTC2h 50m
2026-05-01 AHK456 MNL → HKG May 1, 15:00 UTCMay 1, 16:45 UTC1h 45m
2026-04-30 AHK456 MNL → HKG Apr 30, 23:30 UTCMay 1, 12:35 UTC13h 5m
2026-04-30 AHK457 HKG → MNL Apr 30, 20:25 UTCApr 30, 22:00 UTC1h 35m
2026-04-30 AHK456 MNL → HKG Apr 30, 15:15 UTCApr 30, 16:55 UTC1h 40m
2026-04-29 AHK456 MNL → HKG Apr 29, 23:20 UTCApr 30, 12:55 UTC13h 35m
2026-04-29 AHK457 HKG → MNL Apr 29, 20:15 UTCApr 29, 21:45 UTC1h 30m
2026-04-29 AHK769 PEK → HKG Apr 29, 13:55 UTCApr 29, 16:50 UTC2h 55m
2026-04-28 AHK768 HKG → PEK Apr 28, 20:05 UTCApr 28, 20:25 UTC20m
2026-04-28 AHK456 MNL → HKG Apr 28, 15:05 UTCApr 28, 16:50 UTC1h 45m
2026-04-28 AHK457 HKG → MNL Apr 28, 00:05 UTCApr 28, 12:30 UTC12h 25m

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

Mode-S 78923F frequently asked

What is Mode-S code 78923F?
78923F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LDQ.
Where is Mode-S 78923F registered?
Mode-S code 78923F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78923F broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78923F, octal 36111077, decimal 7,901,759.
What flights does 78923F operate?
Mode-S 78923F has broadcast 18 distinct callsigns, including AHK456, AHK457, AHK681, AHK680, AHK209.