Apparatus

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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 3h ago
Flights observed
222
Distinct callsigns
20
Country
CN
Last broadcast
3h ago

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
CSZ307 Shenzhen Airlines 11 2026-06-11
CSZ631 - 9 2026-06-21
CSZ308 Shenzhen Airlines 9 2026-06-11
CSZ310 - 8 2026-06-20
CSZ306 Shenzhen Airlines 8 2026-06-11
CSZ632 - 7 2026-06-21
CSZ305 Shenzhen Airlines 7 2026-06-11
CSZ309 - 6 2026-06-20
CSZ9142 Shenzhen Airlines 5 2026-06-06
CSZ9141 Shenzhen Airlines 4 2026-06-06
CSZ9117 Shenzhen Airlines 4 2026-06-07
CSZ9116 Shenzhen Airlines 4 2026-06-08
CSZ8913 - 4 2026-07-03
CSZ641 Shenzhen Airlines 4 2026-06-12
CSZ105 - 4 2026-07-11
CSZ9213 - 3 2026-07-03
CSZ9205 Shenzhen Airlines 3 2026-04-29
CSZ9139 - 3 2026-07-04
CSZ642 Shenzhen Airlines 3 2026-06-07
CSZ336 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-10 CSZ9411 - Jul 10, 10:45 UTCJul 10, 10:55 UTC10m
2026-07-10 CSZ9455 - Jul 10, 03:45 UTCJul 10, 04:05 UTC20m
2026-07-04 CSZ9139 - Jul 4, 14:00 UTCJul 4, 14:10 UTC10m
2026-07-03 CSZ9213 - Jul 3, 11:40 UTCJul 3, 11:50 UTC10m
2026-07-03 CSZ8913 - Jul 3, 00:40 UTCJul 3, 00:50 UTC10m
2026-07-02 CSZ9126 - Jul 2, 14:25 UTCJul 2, 14:40 UTC15m
2026-07-02 CSZ9125 - Jul 2, 07:05 UTCJul 2, 07:20 UTC15m
2026-07-02 CSZ9624 - Jul 2, 05:25 UTCJul 2, 05:40 UTC15m
2026-06-24 CSZ8913 - Jun 24, 00:44 UTCJun 24, 00:59 UTC15m
2026-06-23 CSZ8986 - Jun 23, 15:55 UTCJun 23, 16:05 UTC10m
2026-06-23 CSZ8985 - Jun 23, 11:24 UTCJun 23, 11:40 UTC15m
2026-06-23 CSZ9406 - Jun 23, 10:04 UTCJun 23, 10:15 UTC10m
2026-06-23 CSZ9405 - Jun 23, 04:14 UTCJun 23, 04:29 UTC15m
2026-06-22 CSZ9635 - Jun 22, 13:35 UTCJun 22, 13:44 UTC10m
2026-06-22 CSZ9615 - Jun 22, 03:30 UTCJun 22, 03:40 UTC10m
2026-06-22 CSZ9856 - Jun 22, 00:34 UTCJun 22, 01:25 UTC50m
2026-06-21 CSZ9857 SZX → CGQ Jun 21, 14:24 UTCJun 21, 14:34 UTC10m
2026-06-21 CSZ632 - Jun 21, 11:55 UTCJun 21, 12:10 UTC15m
2026-06-21 CSZ632 - Jun 21, 08:49 UTCJun 21, 09:35 UTC45m
2026-06-21 CSZ631 - Jun 21, 06:40 UTCJun 21, 07:25 UTC45m
2026-06-21 CSZ631 - Jun 21, 04:24 UTCJun 21, 04:34 UTC10m
2026-06-20 CSZ310 - Jun 20, 07:49 UTCJun 20, 08:05 UTC15m
2026-06-20 CSZ310 - Jun 20, 05:34 UTCJun 20, 07:14 UTC1h 40m
2026-06-20 CSZ309 SZX → BKK Jun 20, 01:39 UTCJun 20, 04:09 UTC2h 30m
2026-06-19 CSZ334 - Jun 19, 22:24 UTCJun 19, 22:34 UTC10m
2026-06-19 CSZ334 - Jun 19, 19:09 UTCJun 19, 19:39 UTC30m
2026-06-19 CSZ333 - Jun 19, 17:24 UTCJun 19, 17:44 UTC20m
2026-06-19 CSZ333 - Jun 19, 14:19 UTCJun 19, 14:29 UTC10m
2026-06-19 CSZ9202 XIY → SZX Jun 19, 11:34 UTCJun 19, 11:45 UTC10m
2026-06-18 CSZ9213 - Jun 18, 14:50 UTCJun 18, 15:05 UTC15m
2026-06-18 CSZ104 - Jun 18, 10:55 UTCJun 18, 11:20 UTC25m
2026-06-18 CSZ103 - Jun 18, 08:40 UTCJun 18, 09:15 UTC35m
2026-06-18 CSZ103 - Jun 18, 07:55 UTCJun 18, 08:10 UTC15m
2026-06-17 CSZ9201 SZX → XIY Jun 17, 05:00 UTCJun 17, 05:10 UTC10m
2026-06-16 CSZ9846 - Jun 16, 12:20 UTCJun 16, 12:30 UTC10m
2026-06-16 CSZ9845 - Jun 16, 04:35 UTCJun 16, 04:50 UTC15m
2026-06-15 CSZ9202 XIY → SZX Jun 15, 15:25 UTCJun 15, 15:35 UTC10m
2026-06-15 CSZ9201 SZX → XIY Jun 15, 06:15 UTCJun 15, 06:30 UTC15m
2026-06-13 CSZ9213 SZX → XIY Jun 13, 11:35 UTCJun 13, 11:45 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 3h ago.
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 CSZ307, CSZ631, CSZ308, CSZ310, CSZ306.