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sensors Mode-S transponder

7809D9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-9910 · AIRBUS A-320

Hex
7809D9
Octal
36004731
Decimal
7,866,841
Country
CN
Tail
B-9910
Type
A320
No current signal · last broadcast Jul 26, 12:40 UTC
Flights observed
261
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 12:40 UTC

Last known position

Most recent position reported by Mode-S 7809D9.

Country allocation

The ICAO 24-bit address 7809D9 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 Shenzhen Airlines 14 2026-07-25
CSZ632 Shenzhen Airlines 11 2026-07-25
CSZ307 Shenzhen Airlines 11 2026-06-11
CSZ308 Shenzhen Airlines 9 2026-06-11
CSZ310 - 8 2026-06-20
CSZ306 Shenzhen Airlines 8 2026-06-11
CSZ305 Shenzhen Airlines 7 2026-06-11
CSZ9117 - 6 2026-07-17
CSZ333 Shenzhen Airlines 6 2026-07-25
CSZ309 - 6 2026-06-20
CSZ105 Shenzhen Airlines 6 2026-07-26
CSZ9142 Shenzhen Airlines 5 2026-06-06
CSZ641 - 5 2026-07-17
CSZ9141 Shenzhen Airlines 4 2026-06-06
CSZ9116 Shenzhen Airlines 4 2026-06-08
CSZ8913 - 4 2026-07-03
CSZ334 Shenzhen Airlines 4 2026-07-26
CSZ106 Shenzhen Airlines 4 2026-07-26
CSZ9213 - 3 2026-07-03
CSZ9205 Shenzhen Airlines 3 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSZ106 HAN → SZX Jul 26, 12:15 UTCJul 26, 12:40 UTC25m
2026-07-26 CSZ105 SZX → HAN Jul 26, 10:15 UTCJul 26, 10:25 UTC10m
2026-07-26 CSZ105 SZX → HAN Jul 26, 09:00 UTCJul 26, 09:10 UTC10m
2026-07-26 CSZ334 KUL → SZX Jul 26, 03:25 UTCJul 26, 03:55 UTC30m
2026-07-25 CSZ333 SZX → KUL Jul 25, 18:00 UTCJul 25, 18:10 UTC10m
2026-07-25 CSZ333 SZX → KUL Jul 25, 14:50 UTCJul 25, 15:00 UTC10m
2026-07-25 CSZ632 ICN → SZX Jul 25, 08:50 UTCJul 25, 09:30 UTC40m
2026-07-25 CSZ631 SZX → ICN Jul 25, 06:25 UTCJul 25, 07:15 UTC50m
2026-07-25 CSZ631 SZX → ICN Jul 25, 04:10 UTCJul 25, 04:20 UTC10m
2026-07-24 CSZ9447 CAN → TFU Jul 24, 14:35 UTCJul 24, 14:50 UTC15m
2026-07-24 CSZ9631 SZX → YTY Jul 24, 05:40 UTCJul 24, 05:50 UTC10m
2026-07-23 CSZ230 SIN → SZX Jul 23, 10:20 UTCJul 23, 10:40 UTC20m
2026-07-23 CSZ229 SZX → SIN Jul 23, 08:10 UTCJul 23, 08:30 UTC20m
2026-07-23 CSZ229 SZX → SIN Jul 23, 05:05 UTCJul 23, 05:15 UTC10m
2026-07-22 CSZ9417 SZX → CTU Jul 22, 14:15 UTCJul 22, 14:30 UTC15m
2026-07-22 CSZ8956 - Jul 22, 02:20 UTCJul 22, 03:00 UTC40m
2026-07-21 CSZ8953 - Jul 21, 16:15 UTCJul 21, 16:50 UTC35m
2026-07-21 CSZ632 - Jul 21, 09:05 UTCJul 21, 09:45 UTC40m
2026-07-21 CSZ631 SZX → ICN Jul 21, 06:55 UTCJul 21, 07:35 UTC40m
2026-07-21 CSZ631 SZX → ICN Jul 21, 04:25 UTCJul 21, 04:35 UTC10m
2026-07-21 CSZ9314 HAK → SZX Jul 21, 02:20 UTCJul 21, 02:40 UTC20m
2026-07-20 CSZ9315 - Jul 20, 15:05 UTCJul 20, 15:15 UTC10m
2026-07-20 CSZ9888 HGH → SZX Jul 20, 13:10 UTCJul 20, 13:35 UTC25m
2026-07-20 CSZ9887 SZX → CGQ Jul 20, 06:25 UTCJul 20, 06:40 UTC15m
2026-07-20 CSZ9112 - Jul 20, 03:20 UTCJul 20, 03:35 UTC15m
2026-07-19 CSZ9112 - Jul 19, 23:20 UTCJul 19, 23:30 UTC10m
2026-07-18 CSZ8747 - Jul 18, 23:30 UTCJul 19, 00:10 UTC40m
2026-07-17 CSZ9189 - Jul 17, 14:15 UTCJul 17, 14:24 UTC10m
2026-07-17 CSZ9117 - Jul 17, 12:45 UTCJul 17, 12:55 UTC10m
2026-07-17 CSZ9117 - Jul 17, 10:15 UTCJul 17, 10:25 UTC10m
2026-07-17 CSZ641 - Jul 17, 02:15 UTCJul 17, 02:25 UTC10m
2026-07-16 CSZ9237 - Jul 16, 06:45 UTCJul 16, 06:55 UTC10m
2026-07-15 CSZ334 - Jul 15, 23:55 UTCJul 16, 00:25 UTC30m
2026-07-15 CSZ333 - Jul 15, 22:05 UTCJul 15, 22:25 UTC20m
2026-07-15 CSZ333 - Jul 15, 19:05 UTCJul 15, 19:15 UTC10m
2026-07-15 CSZ632 - Jul 15, 14:30 UTCJul 15, 15:30 UTC1h 0m
2026-07-15 CSZ632 - Jul 15, 11:50 UTCJul 15, 12:30 UTC40m
2026-07-15 CSZ631 - Jul 15, 09:20 UTCJul 15, 10:05 UTC45m
2026-07-14 CSZ9229 - Jul 14, 11:00 UTCJul 14, 11:10 UTC10m
2026-07-13 CSZ9437 - Jul 13, 23:45 UTCJul 14, 00:05 UTC20m
2026-07-13 CSZ9207 - Jul 13, 10:35 UTCJul 13, 10:45 UTC10m
2026-07-13 CSZ336 - Jul 13, 08:40 UTCJul 13, 08:55 UTC15m
2026-07-13 CSZ335 - Jul 13, 03:50 UTCJul 13, 04:00 UTC10m
2026-07-13 CSZ335 - Jul 13, 00:50 UTCJul 13, 01:01 UTC10m
2026-07-12 CSZ9312 - Jul 12, 15:40 UTCJul 12, 15:50 UTC10m
2026-07-11 CSZ9317 - Jul 11, 15:50 UTCJul 11, 16:00 UTC10m
2026-07-11 CSZ106 - Jul 11, 11:50 UTCJul 11, 12:15 UTC25m
2026-07-11 CSZ105 - Jul 11, 08:35 UTCJul 11, 08:45 UTC10m
2026-07-10 CSZ9237 - Jul 10, 23:25 UTCJul 10, 23:45 UTC20m
2026-07-10 CSZ9418 - Jul 10, 16:00 UTCJul 10, 16:10 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-9910 page for operator, model, and routing details .

Mode-S 7809D9 frequently asked

What is Mode-S code 7809D9?
7809D9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-9910.
Where is Mode-S 7809D9 registered?
Mode-S code 7809D9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7809D9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7809D9, octal 36004731, decimal 7,866,841.
What flights does 7809D9 operate?
Mode-S 7809D9 has broadcast 20 distinct callsigns, including CSZ631, CSZ632, CSZ307, CSZ308, CSZ310.