Apparatus

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sensors Mode-S transponder

781D9A

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-329J · AIRBUS A-320neo

Hex
781D9A
Octal
36016632
Decimal
7,871,898
Country
CN
Tail
B-329J
Type
A20N
No current signal · last broadcast 7d ago
Flights observed
50
Distinct callsigns
9
Country
CN
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S 781D9A.

Country allocation

The ICAO 24-bit address 781D9A 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 9 distinct

Callsign Airline Flights Last seen
CGZ7214 - 17 2026-07-10
CGZ7213 - 10 2026-07-11
CGZ7243 - 8 2026-07-07
CGZ7244 - 5 2026-07-11
CGZ703 - 4 2026-07-09
CGZ704 - 2 2026-07-02
CGZ7304 Colorful Guizhou Airlines 1 2026-07-17
CGZ706 Colorful Guizhou Airlines 1 2026-06-10
CGZ705 Colorful Guizhou Airlines 1 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CGZ7304 JHG → KWE Jul 17, 14:50 UTCJul 17, 15:05 UTC15m
2026-07-11 CGZ7244 - Jul 11, 03:05 UTCJul 11, 03:20 UTC15m
2026-07-11 CGZ7213 - Jul 11, 01:20 UTCJul 11, 01:30 UTC10m
2026-07-10 CGZ7214 - Jul 10, 14:00 UTCJul 10, 14:15 UTC15m
2026-07-09 CGZ703 - Jul 9, 17:30 UTCJul 9, 23:10 UTC5h 40m
2026-07-07 CGZ7214 - Jul 7, 19:40 UTCJul 7, 19:55 UTC15m
2026-07-07 CGZ7243 - Jul 7, 18:05 UTCJul 7, 18:35 UTC30m
2026-07-05 CGZ7214 - Jul 5, 14:15 UTCJul 5, 14:25 UTC10m
2026-07-05 CGZ7213 - Jul 5, 12:30 UTCJul 5, 12:40 UTC10m
2026-07-04 CGZ703 - Jul 4, 17:20 UTCJul 4, 23:10 UTC5h 50m
2026-07-03 CGZ7214 - Jul 3, 15:15 UTCJul 3, 15:25 UTC10m
2026-07-03 CGZ7213 - Jul 3, 13:50 UTCJul 3, 14:00 UTC10m
2026-07-02 CGZ704 - Jul 2, 16:55 UTCJul 2, 23:30 UTC6h 35m
2026-06-28 CGZ7214 - Jun 28, 14:50 UTCJun 28, 15:05 UTC15m
2026-06-28 CGZ7213 - Jun 28, 13:25 UTCJun 28, 13:34 UTC10m
2026-06-27 CGZ703 KWE → SGN Jun 27, 15:30 UTCJun 27, 23:19 UTC7h 50m
2026-06-25 CGZ7244 - Jun 25, 04:20 UTCJun 25, 04:35 UTC15m
2026-06-25 - - Jun 25, 01:35 UTCJun 25, 01:44 UTC10m
2026-06-24 CGZ7214 - Jun 24, 13:24 UTCJun 24, 13:34 UTC10m
2026-06-24 CGZ7213 - Jun 24, 11:09 UTCJun 24, 11:20 UTC10m
2026-06-23 CGZ703 KWE → SGN Jun 23, 16:24 UTCJun 23, 23:29 UTC7h 5m
2026-06-20 CGZ7214 - Jun 20, 13:19 UTCJun 20, 13:34 UTC15m
2026-06-20 CGZ7243 - Jun 20, 10:55 UTCJun 20, 11:20 UTC25m
2026-06-16 CGZ7244 SZX → HIA Jun 16, 03:30 UTCJun 16, 03:39 UTC10m
2026-06-16 CGZ7213 - Jun 16, 01:19 UTCJun 16, 01:30 UTC10m
2026-06-13 CGZ7214 SZX → TFU Jun 13, 14:10 UTCJun 13, 14:25 UTC15m
2026-06-13 CGZ7243 - Jun 13, 12:40 UTCJun 13, 13:05 UTC25m
2026-06-10 CGZ706 ICN → KWE Jun 10, 22:05 UTCJun 10, 22:30 UTC25m
2026-06-10 CGZ705 KWE → ICN Jun 10, 19:05 UTCJun 10, 19:25 UTC20m
2026-06-04 CGZ7244 SZX → HIA Jun 4, 04:10 UTCJun 4, 04:20 UTC10m
2026-06-03 CGZ7214 SZX → TFU Jun 3, 13:15 UTCJun 3, 13:25 UTC10m
2026-06-03 CGZ7213 TFU → SZX Jun 3, 10:55 UTCJun 3, 11:05 UTC10m
2026-06-02 CGZ7243 HIA → SZX Jun 2, 12:35 UTCJun 2, 12:55 UTC20m
2026-05-31 CGZ7214 SZX → TFU May 31, 13:20 UTCMay 31, 13:35 UTC15m
2026-05-28 CGZ7214 SZX → TFU May 28, 13:25 UTCMay 28, 13:35 UTC10m
2026-05-28 CGZ7243 HIA → SZX May 28, 11:30 UTCMay 28, 11:50 UTC20m
2026-05-23 CGZ7244 SZX → HIA May 23, 03:15 UTCMay 23, 03:25 UTC10m
2026-05-21 CGZ7214 SZX → TFU May 21, 19:25 UTCMay 21, 19:45 UTC20m
2026-05-21 CGZ7243 HIA → SZX May 21, 17:50 UTCMay 21, 18:15 UTC25m
2026-05-08 CGZ7214 SZX → TFU May 8, 13:25 UTCMay 8, 13:35 UTC10m
2026-05-08 CGZ7213 TFU → SZX May 8, 10:54 UTCMay 8, 11:05 UTC10m
2026-05-06 CGZ7213 TFU → SZX May 6, 10:45 UTCMay 6, 10:55 UTC10m
2026-05-04 CGZ7214 SZX → TFU May 4, 13:25 UTCMay 4, 13:35 UTC10m
2026-05-02 CGZ7214 SZX → TFU May 2, 14:00 UTCMay 2, 14:15 UTC15m
2026-05-02 CGZ7243 HIA → SZX May 2, 11:40 UTCMay 2, 12:05 UTC25m
2026-04-25 CGZ7214 SZX → TFU Apr 25, 13:20 UTCApr 25, 13:35 UTC15m
2026-04-25 CGZ7243 HIA → SZX Apr 25, 11:15 UTCApr 25, 11:40 UTC25m
2026-04-21 CGZ704 SGN → KWE Apr 21, 21:35 UTCApr 21, 21:45 UTC10m
2026-04-20 CGZ7214 SZX → TFU Apr 20, 15:30 UTCApr 20, 15:45 UTC15m
2026-04-20 CGZ7213 TFU → SZX Apr 20, 13:25 UTCApr 20, 13:35 UTC10m

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-329J page for operator, model, and routing details .

Mode-S 781D9A frequently asked

What is Mode-S code 781D9A?
781D9A is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-329J.
Where is Mode-S 781D9A registered?
Mode-S code 781D9A is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781D9A broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781D9A, octal 36016632, decimal 7,871,898.
What flights does 781D9A operate?
Mode-S 781D9A has broadcast 9 distinct callsigns, including CGZ7214, CGZ7213, CGZ7243, CGZ7244, CGZ703.