Apparatus

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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 Jul 26, 05:05 UTC
Flights observed
244
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 05:05 UTC

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
CPA289 Cathay Pacific 18 2026-07-25
CPA865 - 16 2026-07-17
CPA100 Cathay Pacific 14 2026-07-23
CPA288 Cathay Pacific 13 2026-07-04
CPA888 - 12 2026-07-16
CPA549 - 12 2026-07-09
CPA181 Cathay Pacific 11 2026-07-22
CPA873 - 9 2026-07-11
CPA872 - 9 2026-07-10
CPA581 Cathay Pacific 9 2026-07-21
CPA255 - 9 2026-06-19
CPA250 Cathay Pacific 9 2026-06-21
CPA884 Cathay Pacific 8 2026-07-24
CPA810 Cathay Pacific 7 2026-06-17
CPA580 Cathay Pacific 7 2026-07-21
CPA548 - 7 2026-07-09
CPA885 Cathay Pacific 6 2026-07-24
CPA867 - 6 2026-06-17
CPA178 - 6 2026-07-14
CPA234 - 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CPA289 HKG → FRA Jul 25, 21:35 UTCJul 26, 04:55 UTC7h 20m
2026-07-25 CPA289 HKG → FRA Jul 25, 16:25 UTCJul 25, 16:45 UTC20m
2026-07-24 CPA885 LAX → HKG Jul 24, 21:15 UTCJul 25, 11:15 UTC14h 0m
2026-07-24 CPA884 HKG → LAX Jul 24, 05:45 UTCJul 24, 19:00 UTC13h 15m
2026-07-23 CPA100 SYD → HKG Jul 23, 04:15 UTCJul 23, 13:05 UTC8h 50m
2026-07-22 CPA181 HKG → SYD Jul 22, 17:10 UTCJul 23, 01:25 UTC8h 15m
2026-07-22 CPA100 SYD → HKG Jul 22, 04:40 UTCJul 22, 13:30 UTC8h 50m
2026-07-21 CPA181 - Jul 21, 17:05 UTCJul 22, 01:25 UTC8h 20m
2026-07-21 CPA581 CTS → HKG Jul 21, 08:40 UTCJul 21, 12:55 UTC4h 15m
2026-07-21 CPA580 HKG → CTS Jul 21, 02:25 UTCJul 21, 06:50 UTC4h 25m
2026-07-20 CPA138 SYD → HKG Jul 20, 12:20 UTCJul 20, 21:05 UTC8h 45m
2026-07-20 CPA139 HKG → SYD Jul 20, 02:00 UTCJul 20, 10:30 UTC8h 30m
2026-07-19 CPA234 - Jul 19, 21:35 UTCJul 19, 22:05 UTC30m
2026-07-19 CPA234 - Jul 19, 11:15 UTCJul 19, 13:20 UTC2h 5m
2026-07-19 CPA233 - Jul 19, 01:55 UTCJul 19, 06:15 UTC4h 20m
2026-07-18 CPA233 - Jul 18, 17:10 UTCJul 18, 17:30 UTC20m
2026-07-18 CPA581 CTS → HKG Jul 18, 08:20 UTCJul 18, 12:35 UTC4h 15m
2026-07-18 CPA580 HKG → CTS Jul 18, 02:19 UTCJul 18, 06:45 UTC4h 26m
2026-07-17 CPA865 - Jul 17, 08:59 UTCJul 17, 21:00 UTC12h 0m
2026-07-16 CPA888 - Jul 16, 17:10 UTCJul 17, 05:15 UTC12h 5m
2026-07-14 CPA178 - Jul 14, 23:05 UTCJul 14, 23:30 UTC25m
2026-07-14 CPA178 - Jul 14, 15:00 UTCJul 14, 22:15 UTC7h 15m
2026-07-14 CPA163 - Jul 14, 05:35 UTCJul 14, 13:10 UTC7h 35m
2026-07-14 CPA163 - Jul 14, 04:35 UTCJul 14, 04:50 UTC15m
2026-07-13 CPA234 MXP → HKG Jul 13, 11:15 UTCJul 13, 22:05 UTC10h 50m
2026-07-12 CPA233 - Jul 12, 22:55 UTCJul 13, 06:15 UTC7h 20m
2026-07-12 CPA233 - Jul 12, 17:50 UTCJul 12, 18:10 UTC20m
2026-07-11 CPA873 SFO → HKG Jul 11, 08:45 UTCJul 11, 22:10 UTC13h 25m
2026-07-10 CPA872 - Jul 10, 17:25 UTCJul 11, 06:01 UTC12h 36m
2026-07-10 CPA100 - Jul 10, 12:55 UTCJul 10, 13:10 UTC15m
2026-07-10 CPA100 - Jul 10, 04:15 UTCJul 10, 12:05 UTC7h 50m
2026-07-09 CPA181 - Jul 9, 17:30 UTCJul 10, 01:40 UTC8h 10m
2026-07-09 CPA549 HND → HKG Jul 9, 07:45 UTCJul 9, 11:35 UTC3h 50m
2026-07-09 CPA548 HKG → HND Jul 9, 01:15 UTCJul 9, 05:05 UTC3h 50m
2026-07-08 CPA865 YVR → HKG Jul 8, 08:40 UTCJul 8, 21:30 UTC12h 50m
2026-07-07 CPA888 HKG → YVR Jul 7, 17:10 UTCJul 8, 04:30 UTC11h 20m
2026-07-07 CPA104 - Jul 7, 13:30 UTCJul 7, 14:05 UTC35m
2026-07-07 CPA104 - Jul 7, 04:40 UTCJul 7, 12:30 UTC7h 50m
2026-07-06 CPA105 HKG → MEL Jul 6, 16:45 UTCJul 7, 01:25 UTC8h 40m
2026-07-06 CPA100 - Jul 6, 12:40 UTCJul 6, 13:10 UTC30m
2026-07-06 CPA100 - Jul 6, 04:15 UTCJul 6, 11:50 UTC7h 35m
2026-07-05 CPA181 HKG → SYD Jul 5, 16:55 UTCJul 6, 01:15 UTC8h 20m
2026-07-05 CPA581 - Jul 5, 07:55 UTCJul 5, 12:15 UTC4h 20m
2026-07-05 CPA580 - Jul 5, 01:45 UTCJul 5, 06:20 UTC4h 35m
2026-07-04 CPA288 FRA → HKG Jul 4, 22:35 UTCJul 4, 23:10 UTC35m
2026-07-04 CPA288 FRA → HKG Jul 4, 12:10 UTCJul 4, 15:45 UTC3h 35m
2026-07-04 CPA289 HKG → FRA Jul 4, 00:40 UTCJul 4, 05:05 UTC4h 25m
2026-07-03 CPA289 HKG → FRA Jul 3, 16:30 UTCJul 3, 16:50 UTC20m
2026-07-03 CPA581 - Jul 3, 08:15 UTCJul 3, 12:45 UTC4h 30m
2026-07-03 CPA580 - Jul 3, 02:05 UTCJul 3, 06:35 UTC4h 30m

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 Jul 26, 05:05 UTC.
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 CPA289, CPA865, CPA100, CPA288, CPA888.