Apparatus

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sensors Mode-S transponder

781032

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8641 · AIRBUS A-321

Hex
781032
Octal
36010062
Decimal
7,868,466
Country
CN
Tail
B-8641
Type
A321
No current signal · last broadcast Jul 26, 06:45 UTC
Flights observed
69
Distinct callsigns
19
Country
CN
Last broadcast
Jul 26, 06:45 UTC

Last known position

Most recent position reported by Mode-S 781032.

Country allocation

The ICAO 24-bit address 781032 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 19 distinct

Callsign Airline Flights Last seen
CSN6077 - 9 2026-07-14
CSN6437 - 7 2026-07-21
CSN313 China Southern Airlines 7 2026-05-23
CSN6373 - 5 2026-06-23
CSN314 China Southern Airlines 5 2026-05-24
CSN8248 China Southern Airlines 4 2026-07-22
CSN6543 China Southern Airlines 4 2026-06-12
CSN6209 China Southern Airlines 4 2026-07-24
CSN6078 China Southern Airlines 4 2026-06-07
CSN6515 - 3 2026-07-02
CSN6509 - 3 2026-06-28
CSN6103 China Southern Airlines 3 2026-07-26
CSN5872 - 3 2026-07-19
CSN3157 - 2 2026-06-18
CSN6104 China Southern Airlines 1 2026-06-03
CSN6102 China Southern Airlines 1 2026-04-24
CSN6096 China Southern Airlines 1 2026-04-19
CSN6095 - 1 2026-04-19
CSN3168 China Southern Airlines 1 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN6103 PKX → CTU Jul 26, 06:30 UTCJul 26, 06:45 UTC16m
2026-07-24 CSN6209 HRB → PVG Jul 24, 13:10 UTCJul 25, 05:10 UTC16h 0m
2026-07-24 CSN6209 HRB → PVG Jul 24, 10:25 UTCJul 25, 05:10 UTC18h 45m
2026-07-24 CSN6209 HRB → PVG Jul 24, 05:30 UTCJul 25, 01:25 UTC19h 55m
2026-07-23 CSN6209 HRB → PVG Jul 23, 00:35 UTCJul 23, 05:35 UTC5h 0m
2026-07-22 CSN8248 NBS → PVG Jul 22, 04:35 UTCJul 23, 01:05 UTC20h 30m
2026-07-22 CSN8248 NBS → PVG Jul 22, 04:20 UTCJul 23, 01:05 UTC20h 45m
2026-07-21 CSN6437 - Jul 21, 12:45 UTCJul 22, 05:00 UTC16h 15m
2026-07-21 CSN6437 - Jul 21, 09:25 UTCJul 22, 05:00 UTC19h 35m
2026-07-21 CSN6437 - Jul 21, 04:35 UTCJul 22, 04:30 UTC23h 55m
2026-07-20 CSN6103 PKX → CTU Jul 20, 06:20 UTCJul 21, 04:30 UTC22h 9m
2026-07-19 CSN5872 - Jul 19, 12:30 UTCJul 19, 13:00 UTC30m
2026-07-18 CSN5872 - Jul 18, 11:05 UTCJul 18, 12:00 UTC55m
2026-07-17 CSN8248 - Jul 17, 01:00 UTCJul 17, 04:39 UTC3h 40m
2026-07-16 CSN8248 - Jul 16, 05:20 UTCJul 17, 04:29 UTC23h 10m
2026-07-14 CSN6077 - Jul 14, 13:10 UTCJul 15, 03:20 UTC14h 9m
2026-07-13 CSN6437 - Jul 13, 04:20 UTCJul 13, 13:40 UTC9h 20m
2026-07-09 CSN6437 - Jul 9, 15:05 UTCJul 10, 08:30 UTC17h 25m
2026-07-09 CSN6437 - Jul 9, 07:25 UTCJul 10, 02:55 UTC19h 30m
2026-07-05 CSN6103 PKX → CTU Jul 5, 05:25 UTCJul 5, 05:35 UTC10m
2026-07-02 CSN6515 - Jul 2, 05:00 UTCJul 2, 13:00 UTC8h 0m
2026-06-28 CSN6509 - Jun 28, 05:04 UTCJun 28, 13:04 UTC8h 0m
2026-06-24 CSN6509 - Jun 24, 04:20 UTCJun 24, 14:20 UTC10h 0m
2026-06-23 CSN6373 - Jun 23, 12:29 UTCJun 24, 04:59 UTC16h 30m
2026-06-23 CSN6373 - Jun 23, 03:49 UTCJun 23, 13:09 UTC9h 20m
2026-06-20 CSN6437 - Jun 20, 12:50 UTCJun 21, 04:20 UTC15h 30m
2026-06-18 CSN3157 - Jun 18, 12:45 UTCJun 18, 13:00 UTC15m
2026-06-14 CSN6077 - Jun 14, 02:35 UTCJun 14, 08:10 UTC5h 35m
2026-06-12 CSN6543 CGQ → PVG Jun 12, 04:15 UTCJun 12, 13:25 UTC9h 10m
2026-06-08 CSN6077 PVG → SGN Jun 8, 02:30 UTCJun 8, 08:40 UTC6h 10m
2026-06-07 CSN6078 SGN → PVG Jun 7, 08:35 UTCJun 8, 08:30 UTC23h 55m
2026-06-07 CSN6078 SGN → PVG Jun 7, 07:25 UTCJun 8, 02:45 UTC19h 20m
2026-06-07 CSN6078 SGN → PVG Jun 7, 02:40 UTCJun 8, 02:30 UTC23h 50m
2026-06-06 CSN6077 PVG → SGN Jun 6, 05:30 UTCJun 7, 02:55 UTC21h 25m
2026-06-03 CSN6104 CTU → PKX Jun 3, 11:40 UTCJun 3, 11:55 UTC15m
2026-05-31 CSN5872 PVG → CGQ May 31, 10:50 UTCMay 31, 11:20 UTC30m
2026-05-28 CSN6509 SHE → PVG May 28, 12:35 UTCMay 28, 13:15 UTC40m
2026-05-27 - - May 27, 04:49 UTCMay 27, 12:35 UTC7h 45m
2026-05-26 CSN6373 CGQ → PVG May 26, 13:24 UTCMay 27, 12:30 UTC23h 5m
2026-05-26 CSN6515 SHE → PVG May 26, 04:35 UTCMay 26, 13:24 UTC8h 50m
2026-05-25 CSN6515 SHE → PVG May 25, 08:50 UTCMay 26, 05:05 UTC20h 14m
2026-05-25 CSN6077 PVG → SGN May 25, 03:25 UTCMay 25, 09:00 UTC5h 35m
2026-05-24 CSN314 ICN → PVG May 24, 03:50 UTCMay 24, 04:15 UTC25m
2026-05-23 CSN313 PVG → ICN May 23, 12:50 UTCMay 24, 02:10 UTC13h 20m
2026-05-19 CSN314 ICN → PVG May 19, 04:10 UTCMay 19, 04:40 UTC30m
2026-05-18 CSN313 PVG → ICN May 18, 08:55 UTCMay 19, 02:15 UTC17h 19m
2026-05-18 CSN313 PVG → ICN May 18, 03:30 UTCMay 19, 02:15 UTC22h 44m
2026-05-17 CSN6077 PVG → SGN May 17, 08:10 UTCMay 18, 03:45 UTC19h 35m
2026-05-17 CSN6077 PVG → SGN May 17, 02:40 UTCMay 17, 08:15 UTC5h 35m
2026-05-13 CSN6373 CGQ → PVG May 13, 12:10 UTCMay 14, 03:10 UTC15h 0m

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-8641 page for operator, model, and routing details .

Mode-S 781032 frequently asked

What is Mode-S code 781032?
781032 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8641.
Where is Mode-S 781032 registered?
Mode-S code 781032 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781032 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 06:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781032, octal 36010062, decimal 7,868,466.
What flights does 781032 operate?
Mode-S 781032 has broadcast 19 distinct callsigns, including CSN6077, CSN6437, CSN313, CSN6373, CSN314.