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sensors Mode-S transponder

780839

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6856 · AIRBUS A-320

Hex
780839
Octal
36004071
Decimal
7,866,425
Country
CN
Tail
B-6856
Type
A320
No current signal · last broadcast Jul 26, 15:10 UTC
Flights observed
304
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 15:10 UTC

Last known position

Most recent position reported by Mode-S 780839.

Country allocation

The ICAO 24-bit address 780839 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
CSZ631 - 13 2026-07-20
CSZ228 - 13 2026-07-17
CSZ632 - 10 2026-07-20
CSZ227 - 10 2026-07-16
CSZ306 Shenzhen Airlines 8 2026-07-03
CSZ103 - 7 2026-07-05
CSZ9510 - 6 2026-07-02
CSZ9509 - 5 2026-07-01
CSZ9504 - 5 2026-06-28
CSZ8952 - 5 2026-07-21
CSZ332 Shenzhen Airlines 5 2026-05-30
CSZ305 - 5 2026-07-03
CSZ229 - 5 2026-07-02
CSZ106 - 5 2026-07-15
CSZ105 - 5 2026-07-15
CSZ104 - 5 2026-07-05
CSZ9631 - 4 2026-06-25
CSZ9503 - 4 2026-06-28
CSZ9313 Shenzhen Airlines 4 2026-06-21
CSZ9129 - 4 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSZ9327 SZX → ZHA Jul 26, 15:00 UTCJul 26, 15:10 UTC10m
2026-07-25 CSZ9447 CAN → TFU Jul 25, 13:00 UTCJul 25, 13:15 UTC15m
2026-07-25 CSZ9406 CTU → SZX Jul 25, 11:30 UTCJul 25, 11:40 UTC10m
2026-07-25 CSZ9405 SZX → CTU Jul 25, 05:15 UTCJul 25, 05:25 UTC10m
2026-07-24 CSZ8915 - Jul 24, 13:30 UTCJul 24, 13:40 UTC10m
2026-07-24 CSZ9616 - Jul 24, 10:20 UTCJul 24, 11:40 UTC1h 20m
2026-07-24 CSZ9615 - Jul 24, 03:35 UTCJul 24, 03:50 UTC15m
2026-07-22 CSZ9139 SZX → YCU Jul 22, 13:05 UTCJul 22, 13:25 UTC20m
2026-07-22 CSZ9616 - Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-22 CSZ9615 - Jul 22, 03:35 UTCJul 22, 03:45 UTC10m
2026-07-21 CSZ8954 - Jul 21, 23:45 UTCJul 22, 00:25 UTC40m
2026-07-21 CSZ8955 - Jul 21, 17:15 UTCJul 21, 17:30 UTC15m
2026-07-21 CSZ8952 - Jul 21, 15:00 UTCJul 21, 15:50 UTC50m
2026-07-21 CSZ8951 - Jul 21, 05:25 UTCJul 21, 05:35 UTC10m
2026-07-21 CSZ8954 - Jul 21, 00:25 UTCJul 21, 01:15 UTC50m
2026-07-20 CSZ8953 - Jul 20, 13:45 UTCJul 20, 13:55 UTC10m
2026-07-20 CSZ632 - Jul 20, 12:05 UTCJul 20, 12:15 UTC10m
2026-07-20 CSZ632 - Jul 20, 09:15 UTCJul 20, 09:50 UTC35m
2026-07-20 CSZ631 - Jul 20, 07:10 UTCJul 20, 07:55 UTC45m
2026-07-20 CSZ631 - Jul 20, 04:50 UTCJul 20, 05:00 UTC10m
2026-07-20 CSZ9314 HAK → SZX Jul 20, 02:25 UTCJul 20, 02:40 UTC15m
2026-07-19 CSZ9315 - Jul 19, 14:55 UTCJul 19, 15:05 UTC10m
2026-07-19 CSZ9133 SZX → TYN Jul 19, 07:00 UTCJul 19, 07:20 UTC20m
2026-07-19 CSZ9230 LHW → SZX Jul 19, 03:40 UTCJul 19, 03:50 UTC10m
2026-07-18 CSZ9229 - Jul 18, 10:40 UTCJul 18, 11:05 UTC25m
2026-07-18 CSZ641 - Jul 18, 02:14 UTCJul 18, 02:25 UTC10m
2026-07-17 CSZ9312 - Jul 17, 15:20 UTCJul 17, 15:29 UTC10m
2026-07-17 CSZ228 - Jul 17, 03:59 UTCJul 17, 12:45 UTC8h 45m
2026-07-17 CSZ228 - Jul 17, 01:39 UTCJul 17, 01:49 UTC10m
2026-07-16 CSZ228 - Jul 16, 23:29 UTCJul 16, 23:44 UTC15m
2026-07-16 CSZ228 - Jul 16, 20:05 UTCJul 16, 20:35 UTC30m
2026-07-16 CSZ227 - Jul 16, 18:25 UTCJul 16, 18:44 UTC20m
2026-07-16 CSZ227 - Jul 16, 15:19 UTCJul 16, 15:35 UTC15m
2026-07-16 CSZ227 - Jul 16, 00:15 UTCJul 16, 08:55 UTC8h 40m
2026-07-15 CSZ9315 - Jul 15, 17:35 UTCJul 15, 17:50 UTC15m
2026-07-15 CSZ106 - Jul 15, 13:50 UTCJul 15, 14:10 UTC20m
2026-07-15 CSZ106 - Jul 15, 12:40 UTCJul 15, 12:55 UTC15m
2026-07-15 CSZ105 - Jul 15, 09:40 UTCJul 15, 10:55 UTC1h 15m
2026-07-15 CSZ8913 - Jul 15, 00:35 UTCJul 15, 00:45 UTC10m
2026-07-14 CSZ8970 - Jul 14, 16:40 UTCJul 14, 16:50 UTC10m
2026-07-14 CSZ9240 - Jul 14, 09:35 UTCJul 14, 10:00 UTC25m
2026-07-14 CSZ9239 - Jul 14, 02:15 UTCJul 14, 02:25 UTC10m
2026-07-13 CSZ334 - Jul 13, 19:45 UTCJul 13, 20:15 UTC30m
2026-07-13 CSZ333 - Jul 13, 17:35 UTCJul 13, 17:55 UTC20m
2026-07-13 CSZ333 - Jul 13, 14:35 UTCJul 13, 14:45 UTC10m
2026-07-13 CSZ8951 - Jul 13, 02:05 UTCJul 13, 02:15 UTC10m
2026-07-12 CSZ9207 - Jul 12, 10:30 UTCJul 12, 10:40 UTC10m
2026-07-12 CSZ8988 - Jul 12, 08:10 UTCJul 12, 08:30 UTC20m
2026-07-12 CSZ8987 - Jul 12, 00:50 UTCJul 12, 01:05 UTC15m
2026-07-11 CSZ334 - Jul 11, 22:20 UTCJul 11, 22:40 UTC20m

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-6856 page for operator, model, and routing details .

Mode-S 780839 frequently asked

What is Mode-S code 780839?
780839 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6856.
Where is Mode-S 780839 registered?
Mode-S code 780839 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780839 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780839, octal 36004071, decimal 7,866,425.
What flights does 780839 operate?
Mode-S 780839 has broadcast 20 distinct callsigns, including CSZ631, CSZ228, CSZ632, CSZ227, CSZ306.