Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

780A9C

ICAO 24-bit transponder address · allocated to China

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

Hex
780A9C
Octal
36005234
Decimal
7,867,036
Country
CN
Tail
B-HNR
Type
B77W
No current signal · last broadcast 5h ago
Flights observed
268
Distinct callsigns
20
Country
CN
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 780A9C.

Country allocation

The ICAO 24-bit address 780A9C 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 21 2026-07-07
CPA660 - 17 2026-07-08
CPA259 Cathay Pacific 17 2026-05-30
CPA883 - 15 2026-07-13
CPA879 - 15 2026-07-06
CPA882 - 13 2026-07-12
CPA870 Cathay Pacific 13 2026-07-06
CPA683 - 12 2026-07-11
CPA216 Cathay Pacific 12 2026-05-31
CPA665 Cathay Pacific 11 2026-06-24
CPA696 - 10 2026-07-11
CPA104 - 10 2026-06-15
CPA698 - 9 2026-06-24
CPA319 Cathay Pacific 7 2026-06-07
CPA741 - 6 2026-06-16
CPA815 - 5 2026-07-08
CPA740 - 5 2026-06-16
CPA694 - 5 2026-07-03
CPA105 Cathay Pacific 5 2026-06-14
CPA814 - 4 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CPA883 - Jul 13, 07:45 UTCJul 13, 21:20 UTC13h 35m
2026-07-12 CPA882 - Jul 12, 11:01 UTCJul 13, 00:05 UTC13h 5m
2026-07-11 CPA696 - Jul 11, 22:05 UTCJul 11, 22:45 UTC40m
2026-07-11 CPA696 - Jul 11, 18:30 UTCJul 11, 20:20 UTC1h 50m
2026-07-11 CPA696 - Jul 11, 17:05 UTCJul 11, 17:15 UTC10m
2026-07-11 CPA683 - Jul 11, 14:40 UTCJul 11, 15:00 UTC20m
2026-07-11 CPA683 - Jul 11, 10:40 UTCJul 11, 13:30 UTC2h 50m
2026-07-11 CPA683 - Jul 11, 09:45 UTCJul 11, 10:00 UTC15m
2026-07-10 CPA883 - Jul 10, 07:45 UTCJul 10, 21:40 UTC13h 55m
2026-07-09 CPA882 - Jul 9, 10:50 UTCJul 9, 23:45 UTC12h 55m
2026-07-08 CPA815 YVR → HKG Jul 8, 18:25 UTCJul 9, 07:30 UTC13h 5m
2026-07-08 CPA814 HKG → YVR Jul 8, 05:10 UTCJul 8, 16:25 UTC11h 15m
2026-07-08 CPA660 - Jul 8, 02:50 UTCJul 8, 03:20 UTC30m
2026-07-07 CPA660 - Jul 7, 21:55 UTCJul 8, 01:15 UTC3h 20m
2026-07-07 CPA663 HKG → BOM Jul 7, 15:00 UTCJul 7, 20:05 UTC5h 5m
2026-07-07 CPA663 HKG → BOM Jul 7, 14:15 UTCJul 7, 14:25 UTC10m
2026-07-06 CPA879 - Jul 6, 21:30 UTCJul 7, 11:05 UTC13h 35m
2026-07-06 CPA870 HKG → SFO Jul 6, 05:35 UTCJul 6, 17:40 UTC12h 5m
2026-07-06 CPA660 - Jul 6, 02:15 UTCJul 6, 02:50 UTC35m
2026-07-05 CPA660 - Jul 5, 22:35 UTCJul 6, 00:25 UTC1h 50m
2026-07-05 CPA660 - Jul 5, 21:05 UTCJul 5, 21:20 UTC15m
2026-07-05 CPA663 HKG → BOM Jul 5, 18:35 UTCJul 5, 19:05 UTC30m
2026-07-05 CPA663 HKG → BOM Jul 5, 14:05 UTCJul 5, 17:10 UTC3h 5m
2026-07-05 CPA663 HKG → BOM Jul 5, 13:20 UTCJul 5, 13:30 UTC10m
2026-07-05 CPA162 - Jul 5, 09:20 UTCJul 5, 09:45 UTC25m
2026-07-05 CPA162 - Jul 5, 01:00 UTCJul 5, 08:30 UTC7h 30m
2026-07-04 CPA161 - Jul 4, 14:20 UTCJul 4, 22:35 UTC8h 15m
2026-07-04 CPA879 - Jul 4, 11:00 UTCJul 4, 11:15 UTC15m
2026-07-03 CPA879 - Jul 3, 21:50 UTCJul 4, 10:20 UTC12h 30m
2026-07-03 CPA870 HKG → SFO Jul 3, 07:10 UTCJul 3, 19:05 UTC11h 55m
2026-07-03 CPA694 - Jul 3, 00:30 UTCJul 3, 01:05 UTC35m
2026-07-02 CPA694 - Jul 2, 20:05 UTCJul 2, 23:45 UTC3h 40m
2026-07-02 CPA679 HKG → DEL Jul 2, 13:20 UTCJul 2, 18:15 UTC4h 55m
2026-07-02 CPA754 - Jul 2, 08:00 UTCJul 2, 08:05 UTC5m
2026-07-02 CPA754 - Jul 2, 05:50 UTCJul 2, 07:10 UTC1h 20m
2026-07-02 CPA755 - Jul 2, 01:50 UTCJul 2, 04:05 UTC2h 15m
2026-07-01 CPA883 LAX → HKG Jul 1, 07:40 UTCJul 1, 21:30 UTC13h 50m
2026-06-30 CPA882 HKG → LAX Jun 30, 12:00 UTCJun 30, 23:35 UTC11h 35m
2026-06-30 CPA882 HKG → LAX Jun 30, 11:10 UTCJun 30, 11:25 UTC15m
2026-06-30 CPA694 ZGN → HKG Jun 30, 00:35 UTCJun 30, 01:00 UTC25m
2026-06-29 CPA694 - Jun 29, 20:09 UTCJun 29, 23:49 UTC3h 40m
2026-06-29 CPA679 HKG → DEL Jun 29, 14:09 UTCJun 29, 18:10 UTC4h 0m
2026-06-29 CPA679 HKG → DEL Jun 29, 13:19 UTCJun 29, 13:34 UTC15m
2026-06-29 CPA879 - Jun 29, 10:55 UTCJun 29, 11:10 UTC15m
2026-06-28 CPA879 - Jun 28, 21:30 UTCJun 29, 10:24 UTC12h 55m
2026-06-28 CPA870 HKG → SFO Jun 28, 06:40 UTCJun 28, 18:25 UTC11h 45m
2026-06-27 CPA660 - Jun 27, 21:55 UTCJun 28, 01:55 UTC4h 0m
2026-06-27 CPA660 - Jun 27, 20:24 UTCJun 27, 20:34 UTC10m
2026-06-27 CPA663 HKG → BOM Jun 27, 18:15 UTCJun 27, 18:29 UTC15m
2026-06-27 CPA663 HKG → BOM Jun 27, 13:55 UTCJun 27, 16:59 UTC3h 5m

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

Mode-S 780A9C frequently asked

What is Mode-S code 780A9C?
780A9C is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-HNR.
Where is Mode-S 780A9C registered?
Mode-S code 780A9C is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780A9C broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780A9C, octal 36005234, decimal 7,867,036.
What flights does 780A9C operate?
Mode-S 780A9C has broadcast 20 distinct callsigns, including CPA663, CPA660, CPA259, CPA883, CPA879.