sensors Mode-S transponder

7892A3

ICAO 24-bit transponder address · allocated to China

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

Hex
7892A3
Octal
36111243
Decimal
7,901,859
Country
CN
Tail
B-KKN
Type
A21N
No current signal · last broadcast 15h ago
Flights observed
15
Distinct callsigns
7
Country
CN
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 7892A3.

Country allocation

The ICAO 24-bit address 7892A3 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 7 distinct

Callsign Airline Flights Last seen
HKE843 - 3 2026-04-13
HKE651 - 3 2026-04-13
HKE650 - 3 2026-04-13
HKE698 - 2 2026-04-13
HKE669 - 2 2026-04-14
HKE842 Hong Kong Express Airways 1 2026-04-12
HKE653 - 1 2026-04-12

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 HKE669 - Apr 14, 09:15 UTCApr 14, 10:55 UTC1h 40m
2026-04-14 HKE669 - Apr 14, 07:40 UTCApr 14, 07:50 UTC10m
2026-04-13 HKE698 - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 HKE698 - Apr 13, 18:50 UTCApr 13, 20:10 UTC1h 20m
2026-04-13 HKE651 - Apr 13, 15:50 UTCApr 13, 16:15 UTC25m
2026-04-13 HKE651 - Apr 13, 12:20 UTCApr 13, 15:20 UTC3h 0m
2026-04-13 HKE651 - Apr 13, 11:50 UTCApr 13, 12:15 UTC25m
2026-04-13 HKE650 - Apr 13, 09:40 UTCApr 13, 10:25 UTC45m
2026-04-13 HKE650 - Apr 13, 07:55 UTCApr 13, 10:25 UTC2h 30m
2026-04-13 HKE650 - Apr 13, 06:40 UTCApr 13, 08:00 UTC1h 20m
2026-04-13 HKE843 - Apr 13, 04:35 UTCApr 13, 05:00 UTC25m
2026-04-13 HKE843 - Apr 13, 03:55 UTCApr 13, 05:00 UTC1h 5m
2026-04-13 HKE843 - Apr 13, 03:35 UTCApr 13, 04:10 UTC35m
2026-04-12 HKE842 HKG → OKA Apr 12, 23:55 UTCApr 13, 00:10 UTC15m
2026-04-12 HKE653 - Apr 12, 17:15 UTCApr 12, 17:25 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-KKN page for operator, model, and routing details .

Mode-S 7892A3 frequently asked

What is Mode-S code 7892A3?
7892A3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KKN.
Where is Mode-S 7892A3 registered?
Mode-S code 7892A3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7892A3 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7892A3, octal 36111243, decimal 7,901,859.
What flights does 7892A3 operate?
Mode-S 7892A3 has broadcast 7 distinct callsigns, including HKE843, HKE651, HKE650, HKE698, HKE669.