sensors Mode-S transponder

780A35

ICAO 24-bit transponder address · allocated to China

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

Hex
780A35
Octal
36005065
Decimal
7,866,933
Country
CN
Tail
B-KQC
Type
B77W
No current signal · last broadcast 2h ago
Flights observed
123
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 780A35.

Country allocation

The ICAO 24-bit address 780A35 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
CPA865 Cathay Pacific 8 2026-05-29
CPA289 Cathay Pacific 8 2026-05-25
CPA873 Cathay Pacific 7 2026-05-12
CPA872 Cathay Pacific 7 2026-05-11
CPA100 Cathay Pacific 7 2026-05-24
CPA888 Cathay Pacific 6 2026-05-28
CPA549 Cathay Pacific 6 2026-05-13
CPA288 Cathay Pacific 6 2026-05-26
CPA181 Cathay Pacific 6 2026-05-23
CPA884 Cathay Pacific 5 2026-05-30
CPA581 Cathay Pacific 5 2026-05-23
CPA665 Cathay Pacific 4 2026-04-16
CPA316 Cathay Pacific 4 2026-04-17
CPA178 Cathay Pacific 4 2026-05-20
CPA885 Cathay Pacific 3 2026-05-21
CPA698 Cathay Pacific 3 2026-04-16
CPA580 Cathay Pacific 3 2026-05-23
CPA548 Cathay Pacific 3 2026-05-13
CPA367 Cathay Pacific 3 2026-05-05
CPA255 Cathay Pacific 3 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CPA884 HKG → LAX May 30, 05:15 UTCMay 30, 08:50 UTC3h 35m
2026-05-29 CPA865 YVR → HKG May 29, 07:55 UTCMay 29, 20:55 UTC13h 0m
2026-05-28 CPA888 HKG → YVR May 28, 17:10 UTCMay 29, 04:30 UTC11h 20m
2026-05-26 CPA288 FRA → HKG May 26, 23:05 UTCMay 26, 23:39 UTC35m
2026-05-26 CPA288 FRA → HKG May 26, 12:10 UTCMay 26, 15:54 UTC3h 45m
2026-05-25 CPA289 HKG → FRA May 25, 21:35 UTCMay 26, 04:45 UTC7h 10m
2026-05-25 CPA289 HKG → FRA May 25, 16:20 UTCMay 25, 16:40 UTC20m
2026-05-24 CPA100 SYD → HKG May 24, 04:30 UTCMay 24, 13:45 UTC9h 15m
2026-05-23 CPA181 HKG → SYD May 23, 17:20 UTCMay 24, 01:25 UTC8h 5m
2026-05-23 CPA581 CTS → HKG May 23, 12:20 UTCMay 23, 12:40 UTC20m
2026-05-23 CPA581 CTS → HKG May 23, 08:00 UTCMay 23, 11:50 UTC3h 50m
2026-05-23 CPA580 HKG → CTS May 23, 01:55 UTCMay 23, 06:20 UTC4h 24m
2026-05-21 CPA885 LAX → HKG May 21, 21:50 UTCMay 22, 12:30 UTC14h 39m
2026-05-21 CPA884 HKG → LAX May 21, 07:10 UTCMay 21, 19:10 UTC12h 0m
2026-05-20 CPA178 MEL → HKG May 20, 23:00 UTCMay 20, 23:25 UTC25m
2026-05-20 CPA178 MEL → HKG May 20, 14:50 UTCMay 20, 22:10 UTC7h 20m
2026-05-20 CPA163 HKG → MEL May 20, 04:35 UTCMay 20, 12:55 UTC8h 21m
2026-05-18 CPA885 LAX → HKG May 18, 20:25 UTCMay 19, 11:15 UTC14h 50m
2026-05-18 CPA884 HKG → LAX May 18, 06:10 UTCMay 18, 17:55 UTC11h 45m
2026-05-18 CPA884 HKG → LAX May 18, 05:20 UTCMay 18, 05:35 UTC15m
2026-05-17 CPA581 CTS → HKG May 17, 08:00 UTCMay 17, 12:25 UTC4h 25m
2026-05-17 CPA580 HKG → CTS May 17, 01:50 UTCMay 17, 06:35 UTC4h 45m
2026-05-16 CPA865 YVR → HKG May 16, 08:16 UTCMay 16, 20:55 UTC12h 40m
2026-05-15 CPA888 HKG → YVR May 15, 18:35 UTCMay 16, 05:40 UTC11h 5m
2026-05-15 CPA704 BKK → HKG May 15, 16:30 UTCMay 15, 16:35 UTC5m
2026-05-15 CPA704 BKK → HKG May 15, 14:25 UTCMay 15, 15:05 UTC39m
2026-05-15 CPA701 HKG → BKK May 15, 10:15 UTCMay 15, 12:40 UTC2h 25m
2026-05-14 CPA250 LHR → HKG May 14, 19:05 UTCMay 15, 07:10 UTC12h 5m
2026-05-13 CPA255 HKG → LHR May 13, 23:35 UTCMay 14, 05:10 UTC5h 35m
2026-05-13 CPA255 HKG → LHR May 13, 15:40 UTCMay 13, 16:00 UTC20m
2026-05-13 CPA549 HND → HKG May 13, 07:40 UTCMay 13, 11:35 UTC3h 55m
2026-05-13 CPA548 HKG → HND May 13, 01:10 UTCMay 13, 04:55 UTC3h 45m
2026-05-12 CPA873 SFO → HKG May 12, 22:05 UTCMay 12, 22:20 UTC15m
2026-05-12 CPA873 SFO → HKG May 12, 08:45 UTCMay 12, 21:30 UTC12h 45m
2026-05-11 CPA872 HKG → SFO May 11, 18:40 UTCMay 12, 06:05 UTC11h 25m
2026-05-11 CPA100 SYD → HKG May 11, 04:25 UTCMay 11, 13:25 UTC9h 0m
2026-05-10 CPA181 HKG → SYD May 10, 17:05 UTCMay 11, 01:10 UTC8h 5m
2026-05-09 CPA885 LAX → HKG May 9, 19:35 UTCMay 10, 10:24 UTC14h 50m
2026-05-09 CPA884 HKG → LAX May 9, 05:00 UTCMay 9, 16:50 UTC11h 50m
2026-05-08 CPA178 MEL → HKG May 8, 22:30 UTCMay 8, 23:05 UTC35m
2026-05-08 CPA178 MEL → HKG May 8, 14:05 UTCMay 8, 21:40 UTC7h 35m
2026-05-08 CPA163 HKG → MEL May 8, 03:55 UTCMay 8, 12:10 UTC8h 15m
2026-05-07 CPA549 HND → HKG May 7, 07:45 UTCMay 7, 11:45 UTC4h 0m
2026-05-07 CPA548 HKG → HND May 7, 01:15 UTCMay 7, 05:00 UTC3h 45m
2026-05-06 CPA234 MXP → HKG May 6, 21:50 UTCMay 6, 22:20 UTC30m
2026-05-06 CPA234 MXP → HKG May 6, 11:05 UTCMay 6, 14:45 UTC3h 40m
2026-05-05 CPA233 HKG → MXP May 5, 17:20 UTCMay 6, 06:10 UTC12h 50m
2026-05-05 CPA367 PVG → HKG May 5, 03:10 UTCMay 5, 09:25 UTC6h 15m
2026-05-04 CPA288 FRA → HKG May 4, 12:00 UTCMay 4, 23:20 UTC11h 21m
2026-05-04 CPA289 HKG → FRA May 4, 01:05 UTCMay 4, 05:05 UTC4h 0m

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

Mode-S 780A35 frequently asked

What is Mode-S code 780A35?
780A35 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KQC.
Where is Mode-S 780A35 registered?
Mode-S code 780A35 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A35 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 780A35, octal 36005065, decimal 7,866,933.
What flights does 780A35 operate?
Mode-S 780A35 has broadcast 20 distinct callsigns, including CPA865, CPA289, CPA873, CPA872, CPA100.