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sensors Mode-S transponder

780A5C

ICAO 24-bit transponder address · allocated to China

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

Hex
780A5C
Octal
36005134
Decimal
7,866,972
Country
CN
Tail
B-KQL
Type
B77W
No current signal · last broadcast Jul 25, 04:35 UTC
Flights observed
241
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 04:35 UTC

Last known position

Most recent position reported by Mode-S 780A5C.

Country allocation

The ICAO 24-bit address 780A5C 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 24 2026-07-23
CPA288 Cathay Pacific 23 2026-07-23
CPA549 - 12 2026-07-11
CPA255 Cathay Pacific 12 2026-07-21
CPA178 Cathay Pacific 11 2026-06-25
CPA888 Cathay Pacific 10 2026-07-24
CPA872 - 10 2026-07-11
CPA865 Cathay Pacific 10 2026-07-07
CPA233 - 10 2026-07-09
CPA250 - 9 2026-07-22
CPA873 - 8 2026-07-12
CPA548 - 8 2026-07-11
CPA885 - 7 2026-07-03
CPA581 Cathay Pacific 7 2026-07-24
CPA234 - 7 2026-07-10
CPA884 - 6 2026-07-02
CPA253 - 6 2026-07-19
CPA163 - 6 2026-06-25
CPA254 Cathay Pacific 5 2026-07-20
CPA580 Cathay Pacific 4 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CPA888 HKG → YVR Jul 24, 17:00 UTCJul 25, 04:30 UTC11h 30m
2026-07-24 CPA581 CTS → HKG Jul 24, 08:20 UTCJul 24, 12:40 UTC4h 20m
2026-07-24 CPA580 HKG → CTS Jul 24, 02:15 UTCJul 24, 06:40 UTC4h 25m
2026-07-23 CPA288 FRA → HKG Jul 23, 22:30 UTCJul 23, 22:50 UTC20m
2026-07-23 CPA288 FRA → HKG Jul 23, 12:05 UTCJul 23, 15:35 UTC3h 30m
2026-07-23 CPA289 HKG → FRA Jul 23, 00:30 UTCJul 23, 01:50 UTC1h 20m
2026-07-22 CPA289 HKG → FRA Jul 22, 16:20 UTCJul 22, 16:40 UTC20m
2026-07-22 CPA918 MNL → HKG Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-22 CPA250 - Jul 22, 04:40 UTCJul 22, 05:10 UTC30m
2026-07-21 CPA250 - Jul 21, 17:35 UTCJul 21, 21:50 UTC4h 15m
2026-07-21 CPA255 HKG → LHR Jul 21, 00:25 UTCJul 21, 05:35 UTC5h 10m
2026-07-20 CPA255 HKG → LHR Jul 20, 15:55 UTCJul 20, 16:05 UTC10m
2026-07-20 CPA254 LHR → HKG Jul 20, 09:20 UTCJul 20, 09:50 UTC30m
2026-07-19 CPA254 LHR → HKG Jul 19, 22:15 UTCJul 20, 01:05 UTC2h 50m
2026-07-19 CPA253 - Jul 19, 14:30 UTCJul 19, 19:45 UTC5h 15m
2026-07-19 CPA253 - Jul 19, 05:45 UTCJul 19, 06:05 UTC20m
2026-07-18 CPA288 FRA → HKG Jul 18, 13:40 UTCJul 19, 00:35 UTC10h 55m
2026-07-18 CPA289 HKG → FRA Jul 18, 01:20 UTCJul 18, 05:35 UTC4h 16m
2026-07-17 CPA289 HKG → FRA Jul 17, 16:34 UTCJul 17, 16:49 UTC15m
2026-07-17 CPA764 SGN → HKG Jul 17, 14:04 UTCJul 17, 14:24 UTC20m
2026-07-17 CPA769 - Jul 17, 08:15 UTCJul 17, 08:30 UTC15m
2026-07-16 CPA250 - Jul 16, 18:19 UTCJul 17, 06:20 UTC12h 0m
2026-07-16 CPA255 - Jul 16, 00:00 UTCJul 16, 05:20 UTC5h 20m
2026-07-15 CPA255 - Jul 15, 15:40 UTCJul 15, 15:55 UTC15m
2026-07-15 CPA521 NRT → HKG Jul 15, 09:20 UTCJul 15, 12:55 UTC3h 35m
2026-07-15 CPA520 HKG → NRT Jul 15, 03:20 UTCJul 15, 07:25 UTC4h 5m
2026-07-14 CPA288 - Jul 14, 23:45 UTCJul 15, 00:15 UTC30m
2026-07-14 CPA288 - Jul 14, 13:15 UTCJul 14, 15:25 UTC2h 10m
2026-07-13 CPA289 HKG → FRA Jul 13, 16:20 UTCJul 14, 05:05 UTC12h 45m
2026-07-13 CPA583 CTS → HKG Jul 13, 08:45 UTCJul 13, 13:05 UTC4h 20m
2026-07-13 CPA582 - Jul 13, 02:25 UTCJul 13, 07:01 UTC4h 35m
2026-07-12 CPA873 - Jul 12, 08:45 UTCJul 12, 21:55 UTC13h 10m
2026-07-11 CPA872 - Jul 11, 18:15 UTCJul 12, 05:50 UTC11h 35m
2026-07-11 CPA872 - Jul 11, 17:30 UTCJul 11, 17:45 UTC15m
2026-07-11 CPA549 - Jul 11, 07:45 UTCJul 11, 11:20 UTC3h 35m
2026-07-11 CPA548 HKG → HND Jul 11, 01:10 UTCJul 11, 04:55 UTC3h 45m
2026-07-10 CPA234 - Jul 10, 21:25 UTCJul 10, 22:00 UTC35m
2026-07-10 CPA234 - Jul 10, 11:15 UTCJul 10, 14:40 UTC3h 25m
2026-07-09 CPA233 - Jul 9, 17:20 UTCJul 10, 03:00 UTC9h 40m
2026-07-09 CPA704 - Jul 9, 14:40 UTCJul 9, 14:45 UTC5m
2026-07-09 CPA704 - Jul 9, 12:30 UTCJul 9, 14:05 UTC1h 35m
2026-07-09 CPA701 HKG → BKK Jul 9, 08:20 UTCJul 9, 10:40 UTC2h 20m
2026-07-09 CPA431 KHH → HKG Jul 9, 03:50 UTCJul 9, 04:55 UTC1h 5m
2026-07-09 CPA432 HKG → KHH Jul 9, 01:00 UTCJul 9, 02:10 UTC1h 10m
2026-07-07 CPA865 YVR → HKG Jul 7, 08:40 UTCJul 7, 20:50 UTC12h 10m
2026-07-06 CPA888 HKG → YVR Jul 6, 17:00 UTCJul 7, 04:35 UTC11h 35m
2026-07-06 CPA549 HND → HKG Jul 6, 07:40 UTCJul 6, 11:40 UTC4h 0m
2026-07-06 CPA548 HKG → HND Jul 6, 01:20 UTCJul 6, 05:00 UTC3h 40m
2026-07-05 CPA865 YVR → HKG Jul 5, 08:45 UTCJul 5, 21:00 UTC12h 15m
2026-07-04 CPA888 HKG → YVR Jul 4, 17:05 UTCJul 5, 04:20 UTC11h 15m

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

Mode-S 780A5C frequently asked

What is Mode-S code 780A5C?
780A5C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KQL.
Where is Mode-S 780A5C registered?
Mode-S code 780A5C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A5C broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 04:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A5C, octal 36005134, decimal 7,866,972.
What flights does 780A5C operate?
Mode-S 780A5C has broadcast 20 distinct callsigns, including CPA289, CPA288, CPA549, CPA255, CPA178.