sensors Mode-S transponder

780A9B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-LRA · AIRBUS A-350-900

Hex
780A9B
Octal
36005233
Decimal
7,867,035
Country
CN
Tail
B-LRA
Type
A359
No current signal · last broadcast Jul 26, 16:15 UTC
Flights observed
308
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 16:15 UTC

Last known position

Most recent position reported by Mode-S 780A9B.

Country allocation

The ICAO 24-bit address 780A9B 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
CPA170 - 14 2026-07-21
CPA383 Cathay Pacific 13 2026-07-24
CPA301 - 10 2026-06-25
CPA239 - 10 2026-07-10
CPA162 Cathay Pacific 10 2026-07-18
CPA636 Cathay Pacific 8 2026-06-12
CPA382 Cathay Pacific 8 2026-07-24
CPA161 Cathay Pacific 8 2026-07-17
CPA539 - 7 2026-07-16
CPA256 - 7 2026-07-10
CPA171 Cathay Pacific 7 2026-07-21
CPA461 - 6 2026-07-03
CPA293 - 6 2026-07-09
CPA134 - 6 2026-06-18
CPA113 Cathay Pacific 6 2026-07-22
CPA841 Cathay Pacific 5 2026-07-20
CPA694 - 5 2026-06-20
CPA679 Cathay Pacific 5 2026-06-19
CPA635 Cathay Pacific 5 2026-06-12
CPA536 - 5 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CPA237 HKG → LHR Jul 26, 16:00 UTCJul 26, 16:15 UTC15m
2026-07-26 CPA853 SEA → HKG Jul 26, 13:45 UTCJul 26, 13:55 UTC10m
2026-07-26 CPA853 SEA → HKG Jul 26, 00:50 UTCJul 26, 13:10 UTC12h 21m
2026-07-25 CPA852 HKG → SEA Jul 25, 10:40 UTCJul 25, 22:25 UTC11h 45m
2026-07-25 CPA608 PNH → HKG Jul 25, 06:50 UTCJul 25, 07:10 UTC20m
2026-07-25 CPA607 HKG → PNH Jul 25, 01:05 UTCJul 25, 01:20 UTC15m
2026-07-24 CPA382 ZRH → HKG Jul 24, 12:30 UTCJul 24, 23:10 UTC10h 40m
2026-07-24 CPA383 HKG → ZRH Jul 24, 05:10 UTCJul 24, 09:30 UTC4h 20m
2026-07-23 CPA383 HKG → ZRH Jul 23, 21:05 UTCJul 23, 21:25 UTC20m
2026-07-23 CPA198 AKL → HKG Jul 23, 02:05 UTCJul 23, 12:50 UTC10h 45m
2026-07-22 CPA113 HKG → AKL Jul 22, 13:40 UTCJul 22, 23:55 UTC10h 15m
2026-07-21 CPA170 - Jul 21, 23:30 UTCJul 21, 23:50 UTC20m
2026-07-21 CPA170 - Jul 21, 16:35 UTCJul 21, 21:40 UTC5h 5m
2026-07-21 CPA171 HKG → PER Jul 21, 07:55 UTCJul 21, 14:55 UTC7h 0m
2026-07-20 CPA841 JFK → HKG Jul 20, 14:35 UTCJul 21, 06:10 UTC15h 34m
2026-07-19 CPA844 HKG → JFK Jul 19, 18:20 UTCJul 20, 09:35 UTC15h 15m
2026-07-19 CPA198 AKL → HKG Jul 19, 01:50 UTCJul 19, 12:40 UTC10h 50m
2026-07-18 CPA113 HKG → AKL Jul 18, 23:35 UTCJul 18, 23:55 UTC20m
2026-07-18 CPA113 HKG → AKL Jul 18, 13:50 UTCJul 18, 21:45 UTC7h 55m
2026-07-18 CPA162 SYD → HKG Jul 18, 01:05 UTCJul 18, 09:45 UTC8h 41m
2026-07-17 CPA161 HKG → SYD Jul 17, 14:24 UTCJul 17, 23:10 UTC8h 45m
2026-07-17 CPA162 SYD → HKG Jul 17, 01:15 UTCJul 17, 09:45 UTC8h 30m
2026-07-16 CPA161 HKG → SYD Jul 16, 14:29 UTCJul 16, 23:20 UTC8h 50m
2026-07-16 CPA539 - Jul 16, 08:35 UTCJul 16, 11:40 UTC3h 5m
2026-07-16 CPA536 - Jul 16, 03:25 UTCJul 16, 06:50 UTC3h 25m
2026-07-16 CPA170 - Jul 16, 00:40 UTCJul 16, 01:00 UTC20m
2026-07-15 CPA170 - Jul 15, 18:00 UTCJul 15, 22:50 UTC4h 50m
2026-07-15 CPA171 HKG → PER Jul 15, 08:15 UTCJul 15, 15:40 UTC7h 25m
2026-07-14 CPA256D - Jul 14, 00:20 UTCJul 14, 00:50 UTC30m
2026-07-13 CPA256D - Jul 13, 13:15 UTCJul 13, 17:30 UTC4h 15m
2026-07-12 CPA237 - Jul 12, 03:35 UTCJul 12, 05:25 UTC1h 50m
2026-07-11 CPA237 - Jul 11, 16:00 UTCJul 11, 16:20 UTC20m
2026-07-10 CPA256 - Jul 10, 19:50 UTCJul 11, 07:20 UTC11h 30m
2026-07-10 CPA239 - Jul 10, 11:35 UTCJul 10, 16:55 UTC5h 20m
2026-07-10 CPA239 - Jul 10, 03:30 UTCJul 10, 03:50 UTC20m
2026-07-09 CPA292 - Jul 9, 21:20 UTCJul 9, 21:40 UTC20m
2026-07-09 CPA292 - Jul 9, 11:20 UTCJul 9, 13:10 UTC1h 50m
2026-07-09 CPA293 - Jul 9, 04:15 UTCJul 9, 05:30 UTC1h 15m
2026-07-08 CPA293 - Jul 8, 17:15 UTCJul 8, 17:35 UTC20m
2026-07-08 CPA479 TPE → HKG Jul 8, 13:35 UTCJul 8, 14:55 UTC1h 20m
2026-07-08 CPA402 - Jul 8, 10:55 UTCJul 8, 12:25 UTC1h 30m
2026-07-07 CPA853 SEA → HKG Jul 7, 20:25 UTCJul 8, 09:05 UTC12h 40m
2026-07-07 CPA852 HKG → SEA Jul 7, 05:55 UTCJul 7, 17:50 UTC11h 55m
2026-07-06 CPA382 ZRH → HKG Jul 6, 12:50 UTCJul 6, 23:50 UTC11h 0m
2026-07-06 CPA383 HKG → ZRH Jul 6, 00:55 UTCJul 6, 05:20 UTC4h 25m
2026-07-05 CPA383 HKG → ZRH Jul 5, 16:40 UTCJul 5, 16:55 UTC15m
2026-07-04 CPA377 - Jul 4, 09:35 UTCJul 4, 10:30 UTC55m
2026-07-04 CPA376 - Jul 4, 04:00 UTCJul 4, 08:45 UTC4h 45m
2026-07-04 CPA376 - Jul 4, 03:00 UTCJul 4, 03:15 UTC15m
2026-07-04 CPA170 PER → HKG Jul 4, 00:35 UTCJul 4, 00:50 UTC15m

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

Mode-S 780A9B frequently asked

What is Mode-S code 780A9B?
780A9B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LRA.
Where is Mode-S 780A9B registered?
Mode-S code 780A9B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A9B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A9B, octal 36005233, decimal 7,867,035.
What flights does 780A9B operate?
Mode-S 780A9B has broadcast 20 distinct callsigns, including CPA170, CPA383, CPA301, CPA239, CPA162.