Apparatus

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sensors Mode-S transponder

789266

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-HPP · AIRBUS A-321neo

Hex
789266
Octal
36111146
Decimal
7,901,798
Country
CN
Tail
B-HPP
Type
A21N
Transponder active on ground
Flights observed
10
Distinct callsigns
6
Country
CN
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 789266.

Country allocation

The ICAO 24-bit address 789266 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 6 distinct

Callsign Airline Flights Last seen
CPA775 - 2 2026-04-13
CPA733 - 2 2026-04-13
CPA732 Cathay Pacific 2 2026-04-13
CPA706 - 2 2026-04-13
CPA955 - 1 2026-04-14
CPA786 Cathay Pacific 1 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 CPA955 - Apr 14, 08:15 UTCApr 14, 08:45 UTC30m
2026-04-13 CPA732 KUL → HKG Apr 13, 22:35 UTCApr 13, 22:50 UTC15m
2026-04-13 CPA732 KUL → HKG Apr 13, 19:20 UTCApr 13, 19:35 UTC15m
2026-04-13 CPA733 - Apr 13, 16:55 UTCApr 13, 17:35 UTC40m
2026-04-13 CPA733 - Apr 13, 14:00 UTCApr 13, 14:20 UTC20m
2026-04-13 CPA706 - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m
2026-04-13 CPA706 - Apr 13, 09:50 UTCApr 13, 10:05 UTC15m
2026-04-13 CPA775 - Apr 13, 08:10 UTCApr 13, 08:20 UTC10m
2026-04-13 CPA775 - Apr 13, 05:55 UTCApr 13, 06:10 UTC15m
2026-04-13 CPA786 SGN → HKG Apr 13, 02:35 UTCApr 13, 02:45 UTC10m

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

Mode-S 789266 frequently asked

What is Mode-S code 789266?
789266 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HPP.
Where is Mode-S 789266 registered?
Mode-S code 789266 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789266 broadcasting right now?
Mode-S 789266 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789266, octal 36111146, decimal 7,901,798.
What flights does 789266 operate?
Mode-S 789266 has broadcast 6 distinct callsigns, including CPA775, CPA733, CPA732, CPA706, CPA955.