Apparatus

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sensors Mode-S transponder

780AA4

ICAO 24-bit transponder address · allocated to China

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

Hex
780AA4
Octal
36005244
Decimal
7,867,044
Country
CN
Tail
B-LRD
Type
A359
No current signal · last broadcast 2h ago
Flights observed
281
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 780AA4.

Country allocation

The ICAO 24-bit address 780AA4 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
CPA275 - 14 2026-07-05
CPA294 Cathay Pacific 13 2026-07-06
CPA293 - 13 2026-06-16
CPA292 Cathay Pacific 9 2026-06-17
CPA758 Cathay Pacific 8 2026-06-05
CPA679 Cathay Pacific 8 2026-06-12
CPA383 - 8 2026-07-12
CPA170 Cathay Pacific 8 2026-06-29
CPA759 Cathay Pacific 7 2026-06-05
CPA694 - 7 2026-06-13
CPA843 Cathay Pacific 6 2026-04-16
CPA840 Cathay Pacific 6 2026-04-15
CPA382 - 6 2026-07-13
CPA301 Cathay Pacific 6 2026-06-03
CPA171 - 6 2026-06-28
CPA104 Cathay Pacific 6 2026-05-24
CPA734 - 5 2026-06-16
CPA527 - 5 2026-07-07
CPA300 Cathay Pacific 5 2026-06-04
CPA150 - 5 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CPA368 - Jul 14, 02:35 UTCJul 14, 04:05 UTC1h 30m
2026-07-13 CPA382 ZRH → HKG Jul 13, 11:55 UTCJul 13, 22:45 UTC10h 50m
2026-07-12 CPA383 - Jul 12, 21:50 UTCJul 13, 05:10 UTC7h 20m
2026-07-12 CPA383 - Jul 12, 16:45 UTCJul 12, 17:05 UTC20m
2026-07-11 CPA841 JFK → HKG Jul 11, 15:30 UTCJul 12, 06:40 UTC15h 10m
2026-07-10 CPA844 HKG → JFK Jul 10, 21:25 UTCJul 11, 13:10 UTC15h 45m
2026-07-09 CPA382 ZGN → HKG Jul 9, 22:00 UTCJul 9, 22:20 UTC20m
2026-07-09 CPA382 - Jul 9, 11:55 UTCJul 9, 15:25 UTC3h 30m
2026-07-08 CPA383 - Jul 8, 21:50 UTCJul 9, 05:20 UTC7h 30m
2026-07-08 CPA383 - Jul 8, 16:40 UTCJul 8, 17:00 UTC20m
2026-07-08 CPA162 - Jul 8, 09:45 UTCJul 8, 10:05 UTC20m
2026-07-08 CPA162 - Jul 8, 00:35 UTCJul 8, 08:40 UTC8h 5m
2026-07-07 CPA161 - Jul 7, 15:35 UTCJul 7, 22:45 UTC7h 10m
2026-07-07 CPA161 - Jul 7, 14:25 UTCJul 7, 14:45 UTC20m
2026-07-07 CPA527 NRT → HKG Jul 7, 06:55 UTCJul 7, 10:50 UTC3h 55m
2026-07-07 CPA526 HKG → NRT Jul 7, 01:20 UTCJul 7, 05:20 UTC4h 0m
2026-07-06 CPA294 BRU → HKG Jul 6, 22:00 UTCJul 6, 22:45 UTC45m
2026-07-06 CPA294 BRU → HKG Jul 6, 11:25 UTCJul 6, 15:15 UTC3h 50m
2026-07-05 CPA275 - Jul 5, 22:10 UTCJul 6, 06:20 UTC8h 10m
2026-07-05 CPA275 - Jul 5, 17:00 UTCJul 5, 17:15 UTC15m
2026-07-04 CPA318 BCN → HKG Jul 4, 22:35 UTCJul 4, 23:10 UTC35m
2026-07-04 CPA318 BCN → HKG Jul 4, 11:35 UTCJul 4, 15:50 UTC4h 15m
2026-07-03 CPA321 - Jul 3, 22:35 UTCJul 4, 06:50 UTC8h 15m
2026-07-03 CPA321 - Jul 3, 17:35 UTCJul 3, 17:50 UTC15m
2026-07-02 CPA318 BCN → HKG Jul 2, 22:40 UTCJul 2, 23:05 UTC25m
2026-07-02 CPA318 BCN → HKG Jul 2, 11:30 UTCJul 2, 15:50 UTC4h 20m
2026-07-01 CPA321 - Jul 1, 22:25 UTCJul 2, 06:25 UTC8h 0m
2026-07-01 CPA321 - Jul 1, 17:15 UTCJul 1, 17:35 UTC20m
2026-07-01 CPA716 - Jul 1, 13:35 UTCJul 1, 13:55 UTC20m
2026-07-01 CPA716 - Jul 1, 10:35 UTCJul 1, 11:00 UTC25m
2026-07-01 CPA791 - Jul 1, 06:55 UTCJul 1, 07:35 UTC40m
2026-07-01 CPA791 - Jul 1, 04:20 UTCJul 1, 04:30 UTC10m
2026-06-30 CPA372 - Jun 30, 11:15 UTCJun 30, 23:05 UTC11h 50m
2026-06-29 CPA315 - Jun 29, 22:30 UTCJun 30, 07:20 UTC8h 50m
2026-06-29 CPA315 - Jun 29, 17:19 UTCJun 29, 17:45 UTC25m
2026-06-29 CPA170 PER → HKG Jun 29, 00:34 UTCJun 29, 00:54 UTC20m
2026-06-28 CPA170 PER → HKG Jun 28, 17:44 UTCJun 28, 22:39 UTC4h 55m
2026-06-28 CPA171 HKG → PER Jun 28, 08:05 UTCJun 28, 15:29 UTC7h 25m
2026-06-27 CPA294 BRU → HKG Jun 27, 11:55 UTCJun 27, 23:04 UTC11h 10m
2026-06-27 CPA275 - Jun 27, 04:05 UTCJun 27, 06:30 UTC2h 25m
2026-06-26 CPA275 - Jun 26, 17:04 UTCJun 26, 17:25 UTC20m
2026-06-26 CPA150 - Jun 26, 10:50 UTCJun 26, 11:09 UTC20m
2026-06-26 CPA150 - Jun 26, 02:40 UTCJun 26, 09:59 UTC7h 20m
2026-06-25 CPA165 HKG → BNE Jun 25, 16:50 UTCJun 26, 00:45 UTC7h 55m
2026-06-24 CPA382 ZRH → HKG Jun 24, 11:59 UTCJun 24, 22:45 UTC10h 45m
2026-06-24 CPA383 HKG → ZRH Jun 24, 03:55 UTCJun 24, 05:20 UTC1h 25m
2026-06-23 CPA383 HKG → ZRH Jun 23, 16:35 UTCJun 23, 16:54 UTC20m
2026-06-23 CPA198 MHB → HKG Jun 23, 02:04 UTCJun 23, 12:45 UTC10h 40m
2026-06-22 CPA113 HKG → AKL Jun 22, 13:29 UTCJun 22, 23:35 UTC10h 5m
2026-06-22 CPA461 - Jun 22, 05:20 UTCJun 22, 05:34 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-LRD page for operator, model, and routing details .

Mode-S 780AA4 frequently asked

What is Mode-S code 780AA4?
780AA4 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-LRD.
Where is Mode-S 780AA4 registered?
Mode-S code 780AA4 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780AA4 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780AA4, octal 36005244, decimal 7,867,044.
What flights does 780AA4 operate?
Mode-S 780AA4 has broadcast 20 distinct callsigns, including CPA275, CPA294, CPA293, CPA292, CPA758.