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sensors Mode-S transponder

780A66

ICAO 24-bit transponder address · allocated to China

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

Hex
780A66
Octal
36005146
Decimal
7,866,982
Country
CN
Tail
B-KQR
Type
B77W
Broadcasting now · callsign CPA815 · 38,000 ft
Flights observed
323
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Current position

780A66 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 780A66 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
CPA663 Cathay Pacific 38 2026-07-01
CPA660 - 33 2026-07-02
CPA683 - 25 2026-07-10
CPA696 - 21 2026-07-10
CPA879 - 17 2026-06-22
CPA815 - 15 2026-07-13
CPA870 Cathay Pacific 14 2026-06-21
CPA665 - 14 2026-07-09
CPA698 - 12 2026-07-09
CPA814 - 10 2026-07-13
CPA883 Cathay Pacific 8 2026-07-05
CPA694 - 8 2026-07-13
CPA679 - 8 2026-07-12
CPA882 Cathay Pacific 6 2026-07-04
CPA743 - 4 2026-07-02
CPA742 - 4 2026-07-02
CPA741 - 4 2026-07-09
CPA740 - 4 2026-07-09
CPA539 Cathay Pacific 4 2026-06-01
CPA489 Cathay Pacific 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CPA815 - Jul 13, 17:20 UTCJul 14, 03:15 UTC9h 55m
2026-07-13 CPA814 HKG → YVR Jul 13, 03:40 UTCJul 13, 15:20 UTC11h 40m
2026-07-13 CPA694 - Jul 13, 00:40 UTCJul 13, 01:01 UTC20m
2026-07-12 CPA694 - Jul 12, 20:10 UTCJul 12, 22:50 UTC2h 40m
2026-07-12 CPA679 - Jul 12, 15:25 UTCJul 12, 18:10 UTC2h 45m
2026-07-12 CPA679 - Jul 12, 13:15 UTCJul 12, 13:30 UTC15m
2026-07-11 CPA583 - Jul 11, 08:40 UTCJul 11, 12:55 UTC4h 15m
2026-07-11 CPA582 - Jul 11, 02:10 UTCJul 11, 06:40 UTC4h 30m
2026-07-10 CPA696 - Jul 10, 22:30 UTCJul 10, 22:50 UTC20m
2026-07-10 CPA696 - Jul 10, 18:50 UTCJul 10, 20:50 UTC2h 0m
2026-07-10 CPA696 - Jul 10, 17:20 UTCJul 10, 17:35 UTC15m
2026-07-10 CPA683 - Jul 10, 14:55 UTCJul 10, 15:20 UTC25m
2026-07-10 CPA683 - Jul 10, 12:10 UTCJul 10, 13:50 UTC1h 40m
2026-07-10 CPA683 - Jul 10, 10:00 UTCJul 10, 10:15 UTC15m
2026-07-10 CPA316 HKG → HKG Jul 10, 00:55 UTCJul 10, 06:50 UTC5h 55m
2026-07-09 CPA698 - Jul 9, 22:00 UTCJul 9, 22:25 UTC25m
2026-07-09 CPA698 - Jul 9, 17:30 UTCJul 9, 20:15 UTC2h 45m
2026-07-09 CPA665 - Jul 9, 12:30 UTCJul 9, 15:15 UTC2h 45m
2026-07-09 CPA665 - Jul 9, 10:25 UTCJul 9, 10:35 UTC10m
2026-07-09 CPA740 - Jul 9, 05:10 UTCJul 9, 05:50 UTC40m
2026-07-09 CPA741 - Jul 9, 01:20 UTCJul 9, 01:30 UTC10m
2026-07-08 CPA698 - Jul 8, 17:35 UTCJul 8, 22:30 UTC4h 55m
2026-07-08 CPA665 - Jul 8, 11:40 UTCJul 8, 15:50 UTC4h 10m
2026-07-08 CPA665 - Jul 8, 10:50 UTCJul 8, 11:05 UTC15m
2026-07-07 CPA704 BKK → HKG Jul 7, 16:55 UTCJul 7, 17:00 UTC5m
2026-07-07 CPA704 BKK → HKG Jul 7, 14:50 UTCJul 7, 15:20 UTC30m
2026-07-07 CPA701 - Jul 7, 10:20 UTCJul 7, 10:55 UTC35m
2026-07-07 CPA701 - Jul 7, 08:30 UTCJul 7, 08:45 UTC15m
2026-07-05 CPA883 LAX → HKG Jul 5, 07:45 UTCJul 5, 21:25 UTC13h 40m
2026-07-04 CPA882 HKG → LAX Jul 4, 11:25 UTCJul 5, 00:05 UTC12h 40m
2026-07-04 CPA815 - Jul 4, 06:35 UTCJul 4, 06:55 UTC20m
2026-07-03 CPA815 - Jul 3, 17:25 UTCJul 4, 05:50 UTC12h 25m
2026-07-03 CPA814 - Jul 3, 05:10 UTCJul 3, 15:20 UTC10h 10m
2026-07-03 CPA814 - Jul 3, 04:20 UTCJul 3, 04:35 UTC15m
2026-07-02 CPA742 - Jul 2, 14:25 UTCJul 2, 14:50 UTC25m
2026-07-02 CPA742 - Jul 2, 13:25 UTCJul 2, 13:40 UTC15m
2026-07-02 CPA743 - Jul 2, 10:20 UTCJul 2, 11:05 UTC45m
2026-07-02 CPA743 - Jul 2, 09:30 UTCJul 2, 09:45 UTC15m
2026-07-02 CPA423 KHH → HKG Jul 2, 06:30 UTCJul 2, 07:35 UTC1h 5m
2026-07-02 CPA424 HKG → KHH Jul 2, 04:05 UTCJul 2, 05:05 UTC1h 0m
2026-07-02 CPA660 - Jul 2, 01:55 UTCJul 2, 02:20 UTC25m
2026-07-01 CPA660 - Jul 1, 22:25 UTCJul 2, 00:10 UTC1h 45m
2026-07-01 CPA660 - Jul 1, 20:55 UTCJul 1, 21:05 UTC10m
2026-07-01 CPA663 HKG → BOM Jul 1, 18:20 UTCJul 1, 18:30 UTC10m
2026-07-01 CPA663 HKG → BOM Jul 1, 14:00 UTCJul 1, 17:00 UTC3h 0m
2026-07-01 CPA663 HKG → BOM Jul 1, 13:10 UTCJul 1, 13:25 UTC15m
2026-07-01 CPA754 - Jul 1, 08:00 UTCJul 1, 08:05 UTC5m
2026-07-01 CPA754 - Jul 1, 05:50 UTCJul 1, 06:10 UTC20m
2026-07-01 CPA755 - Jul 1, 03:50 UTCJul 1, 04:15 UTC25m
2026-07-01 CPA755 - Jul 1, 01:55 UTCJul 1, 02:10 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-KQR page for operator, model, and routing details .

Mode-S 780A66 frequently asked

What is Mode-S code 780A66?
780A66 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-KQR.
Where is Mode-S 780A66 registered?
Mode-S code 780A66 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A66 broadcasting right now?
Yes. Mode-S 780A66 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A66, octal 36005146, decimal 7,866,982.
What flights does 780A66 operate?
Mode-S 780A66 has broadcast 20 distinct callsigns, including CPA663, CPA660, CPA683, CPA696, CPA879.