Apparatus

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sensors Mode-S transponder

789279

ICAO 24-bit transponder address · allocated to China

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

Hex
789279
Octal
36111171
Decimal
7,901,817
Country
CN
Tail
B-LDZ
Type
A333
No current signal · last broadcast Jul 26, 01:10 UTC
Flights observed
184
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 01:10 UTC

Last known position

Most recent position reported by Mode-S 789279.

Country allocation

The ICAO 24-bit address 789279 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 20 distinct

Callsign Airline Flights Last seen
AHK209 - 16 2026-07-15
AHK208 - 16 2026-07-14
AHK562 - 14 2026-07-20
AHK561 Air Hong Kong 14 2026-07-18
AHK681 - 13 2026-07-03
AHK768 Air Hong Kong 12 2026-07-23
AHK769 Air Hong Kong 11 2026-07-25
AHK721 Air Hong Kong 9 2026-07-21
AHK720 Air Hong Kong 8 2026-07-20
AHK680 - 8 2026-07-02
AHK205 - 8 2026-06-18
AHK128 Air Hong Kong 7 2026-07-25
AHK204 - 5 2026-06-17
AHK129 - 5 2026-07-14
AHK457 Air Hong Kong 4 2026-06-10
AHK456 Air Hong Kong 4 2026-06-11
AHK217 - 4 2026-06-30
CPA3073 Cathay Pacific 3 2026-06-20
AHK842 Air Hong Kong 3 2026-07-22
AHK831 Air Hong Kong 3 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 AHK128 HKG → ICN Jul 25, 21:55 UTCJul 26, 01:10 UTC3h 15m
2026-07-25 AHK769 PEK → HKG Jul 25, 13:55 UTCJul 25, 17:00 UTC3h 5m
2026-07-23 AHK768 HKG → PEK Jul 23, 20:20 UTCJul 23, 20:45 UTC25m
2026-07-22 AHK842 BKK → HKG Jul 22, 17:25 UTCJul 22, 17:35 UTC10m
2026-07-22 AHK842 BKK → HKG Jul 22, 15:20 UTCJul 22, 15:45 UTC25m
2026-07-21 AHK831 HKG → BKK Jul 21, 21:45 UTCJul 21, 22:15 UTC30m
2026-07-21 AHK831 HKG → BKK Jul 21, 20:00 UTCJul 21, 20:15 UTC15m
2026-07-21 AHK721 CTU → HKG Jul 21, 17:30 UTCJul 21, 17:50 UTC20m
2026-07-20 AHK720 HKG → CTU Jul 20, 20:15 UTCJul 20, 20:40 UTC25m
2026-07-20 AHK562 - Jul 20, 17:10 UTCJul 20, 17:30 UTC20m
2026-07-18 AHK561 HKG → SGN Jul 18, 21:20 UTCJul 18, 21:35 UTC15m
2026-07-18 AHK721 - Jul 18, 17:30 UTCJul 18, 17:50 UTC20m
2026-07-16 AHK720 HKG → CTU Jul 16, 21:05 UTCJul 16, 21:25 UTC20m
2026-07-16 AHK721 - Jul 16, 17:45 UTCJul 16, 18:10 UTC25m
2026-07-15 AHK720 - Jul 15, 20:50 UTCJul 15, 21:10 UTC20m
2026-07-15 AHK209 - Jul 15, 12:55 UTCJul 15, 16:35 UTC3h 40m
2026-07-14 AHK208 HKG → NRT Jul 14, 19:55 UTCJul 14, 23:55 UTC3h 59m
2026-07-14 AHK129 - Jul 14, 13:40 UTCJul 14, 16:30 UTC2h 50m
2026-07-13 AHK128 - Jul 13, 20:00 UTCJul 13, 23:05 UTC3h 5m
2026-07-13 AHK129 ICN → HKG Jul 13, 13:05 UTCJul 13, 16:05 UTC3h 0m
2026-07-11 AHK128 HKG → ICN Jul 11, 21:10 UTCJul 12, 00:15 UTC3h 5m
2026-07-11 AHK572 - Jul 11, 16:20 UTCJul 11, 16:30 UTC10m
2026-07-10 AHK591 - Jul 10, 23:00 UTCJul 10, 23:15 UTC15m
2026-07-10 AHK591 - Jul 10, 20:10 UTCJul 10, 20:25 UTC15m
2026-07-10 AHK209 - Jul 10, 12:40 UTCJul 10, 16:45 UTC4h 5m
2026-07-09 AHK208 - Jul 9, 19:50 UTCJul 9, 23:40 UTC3h 50m
2026-07-09 AHK769 - Jul 9, 14:00 UTCJul 9, 16:40 UTC2h 40m
2026-07-08 AHK768 - Jul 8, 20:00 UTCJul 8, 20:15 UTC15m
2026-07-08 AHK562 - Jul 8, 17:15 UTCJul 8, 17:25 UTC10m
2026-07-07 AHK561 - Jul 7, 20:10 UTCJul 7, 20:25 UTC15m
2026-07-07 AHK769 - Jul 7, 14:30 UTCJul 7, 17:20 UTC2h 50m
2026-07-06 AHK768 - Jul 6, 19:35 UTCJul 6, 19:55 UTC20m
2026-07-06 AHK769 - Jul 6, 13:55 UTCJul 6, 17:00 UTC3h 5m
2026-07-04 AHK768 - Jul 4, 20:15 UTCJul 4, 20:40 UTC25m
2026-07-04 AHK209 - Jul 4, 12:55 UTCJul 4, 17:20 UTC4h 25m
2026-07-03 AHK208 - Jul 3, 20:30 UTCJul 4, 00:25 UTC3h 55m
2026-07-03 AHK681 - Jul 3, 16:45 UTCJul 3, 17:20 UTC35m
2026-07-03 AHK681 - Jul 3, 15:45 UTCJul 3, 16:10 UTC25m
2026-07-02 AHK680 HKG → TPE Jul 2, 20:55 UTCJul 2, 22:15 UTC1h 20m
2026-07-02 AHK681 - Jul 2, 15:35 UTCJul 2, 15:55 UTC20m
2026-07-02 AHK681 - Jul 2, 14:35 UTCJul 2, 15:00 UTC25m
2026-07-01 AHK680 HKG → TPE Jul 1, 21:00 UTCJul 1, 22:25 UTC1h 25m
2026-07-01 AHK326 - Jul 1, 16:55 UTCJul 1, 17:20 UTC25m
2026-07-01 AHK326 - Jul 1, 13:55 UTCJul 1, 14:20 UTC25m
2026-06-30 AHK327 - Jun 30, 22:30 UTCJun 30, 23:00 UTC30m
2026-06-30 AHK327 - Jun 30, 19:50 UTCJun 30, 20:05 UTC15m
2026-06-30 AHK217 - Jun 30, 16:25 UTCJun 30, 16:40 UTC15m
2026-06-30 AHK217 - Jun 30, 13:15 UTCJun 30, 15:50 UTC2h 35m
2026-06-29 AHK216 - Jun 29, 20:00 UTCJun 29, 23:14 UTC3h 15m
2026-06-29 AHK129 ICN → HKG Jun 29, 13:14 UTCJun 29, 16:19 UTC3h 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 B-LDZ page for operator, model, and routing details .

Mode-S 789279 frequently asked

What is Mode-S code 789279?
789279 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LDZ.
Where is Mode-S 789279 registered?
Mode-S code 789279 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789279 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 01:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789279, octal 36111171, decimal 7,901,817.
What flights does 789279 operate?
Mode-S 789279 has broadcast 20 distinct callsigns, including AHK209, AHK208, AHK562, AHK561, AHK681.