Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

789231

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LXK · AIRBUS A-350-1000

Hex
789231
Octal
36111061
Decimal
7,901,745
Country
CN
Tail
B-LXK
Type
A35K
No current signal · last broadcast Jul 26, 17:05 UTC
Flights observed
196
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 17:05 UTC

Last known position

Most recent position reported by Mode-S 789231.

Country allocation

The ICAO 24-bit address 789231 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
CPA595 - 14 2026-07-07
CPA271 - 13 2026-06-25
CPA257 - 13 2026-07-19
CPA829 Cathay Pacific 11 2026-07-18
CPA828 - 11 2026-07-15
CPA270 - 11 2026-06-25
CPA238 Cathay Pacific 11 2026-07-19
CPA876 - 10 2026-07-08
CPA826 Cathay Pacific 10 2026-07-26
CPA805 - 10 2026-07-16
CPA596 - 10 2026-07-07
CPA843 - 9 2026-06-23
CPA820 Cathay Pacific 9 2026-05-03
CPA875 - 8 2026-07-09
CPA840 - 7 2026-06-22
CPA261 Cathay Pacific 6 2026-07-21
CPA801 Cathay Pacific 4 2026-07-23
CPA260 Cathay Pacific 4 2026-07-22
CPA821 Cathay Pacific 3 2026-05-04
CPA811 Cathay Pacific 3 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA826 HKG → YYZ Jul 26, 13:10 UTCJul 26, 17:05 UTC3h 55m
2026-07-26 CPA831 JFK → HKG Jul 26, 10:35 UTCJul 26, 10:45 UTC10m
2026-07-25 CPA831 JFK → HKG Jul 25, 19:40 UTCJul 26, 10:05 UTC14h 26m
2026-07-24 CPA844 HKG → JFK Jul 24, 18:40 UTCJul 25, 09:50 UTC15h 10m
2026-07-23 CPA801 ORD → HKG Jul 23, 21:20 UTCJul 24, 12:35 UTC15h 15m
2026-07-23 CPA806 HKG → ORD Jul 23, 04:35 UTCJul 23, 18:40 UTC14h 5m
2026-07-22 CPA260 CDG → HKG Jul 22, 21:00 UTCJul 22, 21:20 UTC20m
2026-07-21 CPA261 HKG → CDG Jul 21, 23:10 UTCJul 22, 13:10 UTC14h 0m
2026-07-21 CPA261 HKG → CDG Jul 21, 18:10 UTCJul 21, 18:30 UTC20m
2026-07-21 CPA801 ORD → HKG Jul 21, 15:20 UTCJul 21, 15:45 UTC25m
2026-07-21 CPA801 ORD → HKG Jul 21, 00:35 UTCJul 21, 13:10 UTC12h 35m
2026-07-20 CPA806 HKG → ORD Jul 20, 07:05 UTCJul 20, 21:45 UTC14h 40m
2026-07-19 CPA238 LHR → HKG Jul 19, 17:05 UTCJul 20, 04:45 UTC11h 40m
2026-07-19 CPA257 HKG → LHR Jul 19, 09:45 UTCJul 19, 14:50 UTC5h 5m
2026-07-19 CPA257 - Jul 19, 00:35 UTCJul 19, 00:55 UTC20m
2026-07-18 CPA829 YYZ → HKG Jul 18, 07:05 UTCJul 18, 21:55 UTC14h 50m
2026-07-17 CPA826 HKG → YYZ Jul 17, 14:20 UTCJul 18, 04:55 UTC14h 36m
2026-07-16 CPA805 - Jul 16, 10:55 UTCJul 16, 11:25 UTC30m
2026-07-15 CPA805 - Jul 15, 20:30 UTCJul 16, 09:00 UTC12h 30m
2026-07-15 CPA828 HKG → YYZ Jul 15, 03:35 UTCJul 15, 18:00 UTC14h 25m
2026-07-14 CPA829 YYZ → HKG Jul 14, 06:15 UTCJul 14, 21:05 UTC14h 50m
2026-07-13 CPA826 HKG → YYZ Jul 13, 13:20 UTCJul 14, 03:50 UTC14h 30m
2026-07-13 CPA443 - Jul 13, 08:40 UTCJul 13, 10:05 UTC1h 25m
2026-07-13 CPA400 HKG → TPE Jul 13, 06:01 UTCJul 13, 07:20 UTC1h 20m
2026-07-10 CPA828 - Jul 10, 05:45 UTCJul 10, 06:05 UTC20m
2026-07-10 CPA828 - Jul 10, 03:30 UTCJul 10, 04:50 UTC1h 20m
2026-07-09 CPA875 DFW → HKG Jul 9, 04:35 UTCJul 9, 19:55 UTC15h 20m
2026-07-08 CPA876 HKG → DFW Jul 8, 08:50 UTCJul 8, 22:50 UTC14h 0m
2026-07-07 CPA595 KIX → HKG Jul 7, 09:55 UTCJul 7, 13:20 UTC3h 25m
2026-07-07 CPA596 HKG → KIX Jul 7, 01:00 UTCJul 7, 04:15 UTC3h 15m
2026-07-06 CPA829 YYZ → HKG Jul 6, 06:10 UTCJul 6, 20:50 UTC14h 40m
2026-07-05 CPA826 HKG → YYZ Jul 5, 13:20 UTCJul 6, 03:35 UTC14h 15m
2026-07-04 CPA805 YYZ → HKG Jul 4, 20:30 UTCJul 5, 11:05 UTC14h 35m
2026-07-04 CPA828 HKG → YYZ Jul 4, 03:40 UTCJul 4, 18:00 UTC14h 20m
2026-07-02 CPA829 YYZ → HKG Jul 2, 06:35 UTCJul 2, 21:10 UTC14h 35m
2026-07-01 CPA826 HKG → YYZ Jul 1, 12:10 UTCJul 2, 02:30 UTC14h 20m
2026-06-30 CPA875 DFW → HKG Jun 30, 04:20 UTCJun 30, 19:55 UTC15h 35m
2026-06-29 CPA876 - Jun 29, 09:25 UTCJun 29, 22:39 UTC13h 15m
2026-06-29 CPA876 - Jun 29, 08:35 UTCJun 29, 08:54 UTC20m
2026-06-29 CPA238 - Jun 29, 03:39 UTCJun 29, 04:14 UTC35m
2026-06-28 CPA238 - Jun 28, 16:45 UTCJun 28, 21:04 UTC4h 20m
2026-06-28 CPA257 - Jun 28, 08:50 UTCJun 28, 13:45 UTC4h 55m
2026-06-28 CPA257 - Jun 28, 00:30 UTCJun 28, 00:45 UTC15m
2026-06-27 CPA829 - Jun 27, 20:04 UTCJun 27, 20:34 UTC30m
2026-06-27 CPA829 - Jun 27, 06:05 UTCJun 27, 17:55 UTC11h 50m
2026-06-26 CPA826 HKG → YYZ Jun 26, 12:29 UTCJun 27, 02:50 UTC14h 20m
2026-06-25 CPA270 AMS → HKG Jun 25, 11:30 UTCJun 25, 22:29 UTC11h 0m
2026-06-25 CPA271 - Jun 25, 03:04 UTCJun 25, 04:54 UTC1h 50m
2026-06-24 CPA271 - Jun 24, 15:44 UTCJun 24, 16:05 UTC20m
2026-06-24 CPA595 - Jun 24, 09:55 UTCJun 24, 13:05 UTC3h 10m

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

Mode-S 789231 frequently asked

What is Mode-S code 789231?
789231 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LXK.
Where is Mode-S 789231 registered?
Mode-S code 789231 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 789231 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 789231, octal 36111061, decimal 7,901,745.
What flights does 789231 operate?
Mode-S 789231 has broadcast 20 distinct callsigns, including CPA595, CPA271, CPA257, CPA829, CPA828.