Apparatus

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sensors Mode-S transponder

780A38

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-KQF · BOEING 777-300ER

Hex
780A38
Octal
36005070
Decimal
7,866,936
Country
CN
Tail
B-KQF
Type
B77W
No current signal · last broadcast 1h ago
Flights observed
305
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 780A38.

Country allocation

The ICAO 24-bit address 780A38 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
CPA665 Cathay Pacific 30 2026-07-07
CPA663 Cathay Pacific 27 2026-06-26
CPA698 - 24 2026-07-07
CPA879 - 19 2026-06-26
CPA660 - 19 2026-06-27
CPA870 Cathay Pacific 17 2026-06-25
CPA104 - 13 2026-07-13
CPA259 Cathay Pacific 11 2026-05-26
CPA216 Cathay Pacific 11 2026-05-26
CPA105 - 10 2026-07-13
CPA740 - 9 2026-07-06
CPA883 Cathay Pacific 8 2026-06-20
CPA319 - 7 2026-07-08
CPA882 Cathay Pacific 6 2026-06-19
CPA741 - 6 2026-07-06
CPA815 - 5 2026-06-16
CPA769 - 5 2026-07-08
CPA764 Cathay Pacific 5 2026-07-08
CPA316 - 5 2026-06-28
CPA239 Cathay Pacific 5 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CPA105 - Jul 13, 17:45 UTCJul 14, 01:25 UTC7h 40m
2026-07-13 CPA105 - Jul 13, 16:45 UTCJul 13, 17:00 UTC15m
2026-07-13 CPA104 - Jul 13, 13:00 UTCJul 13, 13:15 UTC15m
2026-07-13 CPA104 - Jul 13, 04:30 UTCJul 13, 12:05 UTC7h 35m
2026-07-12 CPA105 - Jul 12, 17:35 UTCJul 13, 01:05 UTC7h 30m
2026-07-12 CPA105 - Jul 12, 16:35 UTCJul 12, 16:50 UTC15m
2026-07-12 CPA104 - Jul 12, 04:35 UTCJul 12, 13:10 UTC8h 35m
2026-07-11 CPA105 HKG → MEL Jul 11, 16:30 UTCJul 12, 00:55 UTC8h 25m
2026-07-11 CPA754 - Jul 11, 08:35 UTCJul 11, 08:55 UTC20m
2026-07-11 CPA754 - Jul 11, 06:35 UTCJul 11, 06:45 UTC10m
2026-07-11 CPA755 - Jul 11, 04:50 UTCJul 11, 05:05 UTC15m
2026-07-11 CPA755 - Jul 11, 02:45 UTCJul 11, 03:30 UTC45m
2026-07-10 CPA873 - Jul 10, 11:30 UTCJul 11, 01:00 UTC13h 30m
2026-07-09 CPA872 HKG → SFO Jul 9, 21:00 UTCJul 10, 09:05 UTC12h 5m
2026-07-09 CPA100 - Jul 9, 13:10 UTCJul 9, 13:25 UTC15m
2026-07-09 CPA100 - Jul 9, 04:20 UTCJul 9, 12:15 UTC7h 55m
2026-07-08 CPA181 HKG → SYD Jul 8, 17:40 UTCJul 9, 01:45 UTC8h 5m
2026-07-08 CPA764 SGN → HKG Jul 8, 15:35 UTCJul 8, 15:45 UTC10m
2026-07-08 CPA769 - Jul 8, 09:30 UTCJul 8, 09:45 UTC15m
2026-07-08 CPA319 HKG → HKG Jul 8, 00:30 UTCJul 8, 07:25 UTC6h 55m
2026-07-07 CPA698 - Jul 7, 22:15 UTCJul 7, 22:45 UTC30m
2026-07-07 CPA698 - Jul 7, 17:40 UTCJul 7, 20:30 UTC2h 50m
2026-07-07 CPA665 HKG → DEL Jul 7, 11:15 UTCJul 7, 15:20 UTC4h 5m
2026-07-07 CPA665 HKG → DEL Jul 7, 10:25 UTCJul 7, 10:35 UTC10m
2026-07-06 CPA698 DEL → HKG Jul 6, 17:45 UTCJul 6, 23:00 UTC5h 15m
2026-07-06 CPA665 HKG → DEL Jul 6, 11:40 UTCJul 6, 15:40 UTC4h 0m
2026-07-06 CPA665 HKG → DEL Jul 6, 10:40 UTCJul 6, 10:55 UTC15m
2026-07-06 CPA740 - Jul 6, 05:30 UTCJul 6, 06:05 UTC35m
2026-07-06 CPA740 - Jul 6, 04:35 UTCJul 6, 04:45 UTC10m
2026-07-06 CPA741 - Jul 6, 01:15 UTCJul 6, 01:25 UTC10m
2026-07-05 CPA104 - Jul 5, 12:45 UTCJul 5, 13:05 UTC20m
2026-07-05 CPA104 - Jul 5, 04:35 UTCJul 5, 11:45 UTC7h 10m
2026-07-04 CPA105 HKG → MEL Jul 4, 16:50 UTCJul 5, 01:15 UTC8h 25m
2026-07-04 CPA104 - Jul 4, 13:05 UTCJul 4, 13:20 UTC15m
2026-07-04 CPA104 - Jul 4, 04:35 UTCJul 4, 12:10 UTC7h 35m
2026-07-03 CPA105 HKG → MEL Jul 3, 17:05 UTCJul 4, 01:35 UTC8h 30m
2026-07-03 CPA104 - Jul 3, 13:10 UTCJul 3, 13:25 UTC15m
2026-07-03 CPA104 - Jul 3, 04:35 UTCJul 3, 12:15 UTC7h 40m
2026-07-02 CPA105 HKG → MEL Jul 2, 16:40 UTCJul 3, 01:05 UTC8h 25m
2026-07-02 CPA104 - Jul 2, 13:30 UTCJul 2, 13:40 UTC10m
2026-07-02 CPA104 - Jul 2, 04:45 UTCJul 2, 12:30 UTC7h 45m
2026-07-01 CPA105 HKG → MEL Jul 1, 16:40 UTCJul 2, 00:40 UTC8h 0m
2026-07-01 CPA104 - Jul 1, 13:35 UTCJul 1, 14:00 UTC25m
2026-07-01 CPA104 - Jul 1, 04:45 UTCJul 1, 12:45 UTC8h 0m
2026-06-30 CPA105 HKG → MEL Jun 30, 16:40 UTCJul 1, 00:50 UTC8h 10m
2026-06-29 CPA764 SGN → HKG Jun 29, 13:49 UTCJun 29, 13:59 UTC10m
2026-06-29 CPA769 - Jun 29, 08:04 UTCJun 29, 08:19 UTC15m
2026-06-29 CPA740 - Jun 29, 05:45 UTCJun 29, 06:29 UTC45m
2026-06-29 CPA740 - Jun 29, 04:45 UTCJun 29, 05:04 UTC20m
2026-06-29 CPA741 - Jun 29, 02:25 UTCJun 29, 02:59 UTC35m

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

Mode-S 780A38 frequently asked

What is Mode-S code 780A38?
780A38 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KQF.
Where is Mode-S 780A38 registered?
Mode-S code 780A38 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A38 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A38, octal 36005070, decimal 7,866,936.
What flights does 780A38 operate?
Mode-S 780A38 has broadcast 20 distinct callsigns, including CPA665, CPA663, CPA698, CPA879, CPA660.