sensors Mode-S transponder

789265

ICAO 24-bit transponder address · allocated to China

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

Hex
789265
Octal
36111145
Decimal
7,901,797
Country
CN
Tail
B-HPO
Type
A21N
No current signal · last broadcast 16h ago
Flights observed
5
Distinct callsigns
4
Country
CN
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 789265.

Country allocation

The ICAO 24-bit address 789265 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 4 distinct

Callsign Airline Flights Last seen
CPA304 - 2 2026-04-13
CPA956 Cathay Pacific 1 2026-04-13
CPA955 - 1 2026-04-13
CPA598 - 1 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 CPA598 - Apr 14, 05:30 UTCApr 14, 06:45 UTC1h 15m
2026-04-13 CPA304 - Apr 13, 12:35 UTCApr 13, 12:50 UTC15m
2026-04-13 CPA304 - Apr 13, 11:50 UTCApr 13, 12:15 UTC25m
2026-04-13 CPA955 - Apr 13, 08:20 UTCApr 13, 08:45 UTC25m
2026-04-13 CPA956 HKG → NGB Apr 13, 03:20 UTCApr 13, 04:10 UTC50m

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

Mode-S 789265 frequently asked

What is Mode-S code 789265?
789265 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HPO.
Where is Mode-S 789265 registered?
Mode-S code 789265 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789265 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789265, octal 36111145, decimal 7,901,797.
What flights does 789265 operate?
Mode-S 789265 has broadcast 4 distinct callsigns, including CPA304, CPA956, CPA955, CPA598.