Apparatus

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sensors Mode-S transponder

78233B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32PD · AIRBUS A-320neo

Hex
78233B
Octal
36021473
Decimal
7,873,339
Country
CN
Tail
B-32PD
Type
A20N
No current signal · last broadcast Jul 26, 19:35 UTC
Flights observed
368
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 19:35 UTC

Last known position

Most recent position reported by Mode-S 78233B.

Country allocation

The ICAO 24-bit address 78233B 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
CSZ310 - 24 2026-07-16
CSZ308 - 24 2026-07-18
CSZ307 - 22 2026-07-18
CSZ306 - 22 2026-07-11
CSZ309 - 21 2026-07-16
CSZ305 - 17 2026-07-11
CSZ9245 - 13 2026-07-05
CSZ9141 - 11 2026-07-18
CSZ107 Shenzhen Airlines 8 2026-07-26
CSZ9241 Shenzhen Airlines 7 2026-06-14
CSZ8271 - 7 2026-07-24
CSZ9844 Shenzhen Airlines 6 2026-05-20
CSZ9843 - 6 2026-07-02
CSZ8983 - 6 2026-07-10
CSZ108 Shenzhen Airlines 6 2026-07-26
CSZ9306 Shenzhen Airlines 5 2026-06-23
CSZ9305 - 5 2026-06-23
CSZ9142 Shenzhen Airlines 5 2026-07-18
CSZ9530 Shenzhen Airlines 4 2026-05-29
CSZ9529 Shenzhen Airlines 4 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSZ108 HAN → SZX Jul 26, 19:15 UTCJul 26, 19:35 UTC20m
2026-07-26 CSZ107 SZX → HAN Jul 26, 17:00 UTCJul 26, 17:25 UTC25m
2026-07-26 CSZ107 SZX → HAN Jul 26, 16:10 UTCJul 26, 16:25 UTC15m
2026-07-26 CSZ9894 HFE → SZX Jul 26, 14:15 UTCJul 26, 14:30 UTC15m
2026-07-26 CSZ9893 SZX → WUH Jul 26, 09:50 UTCJul 26, 10:05 UTC15m
2026-07-26 CSZ9916 TAO → SZX Jul 26, 06:15 UTCJul 26, 06:35 UTC21m
2026-07-25 CSZ9238 LHW → SZX Jul 25, 06:35 UTCJul 25, 06:45 UTC10m
2026-07-24 CSZ9237 SZX → LHW Jul 24, 23:25 UTCJul 24, 23:40 UTC15m
2026-07-24 CSZ8272 - Jul 24, 12:45 UTCJul 24, 12:55 UTC10m
2026-07-24 CSZ8271 - Jul 24, 00:15 UTCJul 24, 00:25 UTC10m
2026-07-23 CSZ9526 PVG → SZX Jul 23, 13:30 UTCJul 23, 13:55 UTC25m
2026-07-23 - - Jul 23, 05:10 UTCJul 23, 05:25 UTC15m
2026-07-23 CSZ9329 CGO → SZX Jul 23, 01:15 UTCJul 23, 01:30 UTC15m
2026-07-22 CSZ334 KUL → SZX Jul 22, 23:00 UTCJul 22, 23:20 UTC20m
2026-07-22 CSZ334 KUL → SZX Jul 22, 19:30 UTCJul 22, 20:00 UTC30m
2026-07-22 CSZ333 SZX → KUL Jul 22, 17:50 UTCJul 22, 18:20 UTC30m
2026-07-22 CSZ333 SZX → KUL Jul 22, 14:55 UTCJul 22, 15:05 UTC10m
2026-07-22 CSZ106 - Jul 22, 12:10 UTCJul 22, 12:30 UTC20m
2026-07-22 CSZ9301 SZX → CGO Jul 22, 00:15 UTCJul 22, 00:25 UTC10m
2026-07-21 CSZ8112 - Jul 21, 16:05 UTCJul 21, 16:15 UTC10m
2026-07-21 CSZ8111 - Jul 21, 07:05 UTCJul 21, 07:20 UTC15m
2026-07-21 CSZ9512 PVG → SZX Jul 21, 05:15 UTCJul 21, 05:55 UTC40m
2026-07-21 CSZ9511 SZX → PVG Jul 21, 00:00 UTCJul 21, 00:10 UTC10m
2026-07-20 CSZ108 - Jul 20, 19:15 UTCJul 20, 19:35 UTC20m
2026-07-20 CSZ107 SZX → HAN Jul 20, 17:15 UTCJul 20, 17:40 UTC25m
2026-07-20 CSZ107 SZX → HAN Jul 20, 16:30 UTCJul 20, 16:45 UTC15m
2026-07-20 CSZ8272 - Jul 20, 12:20 UTCJul 20, 12:30 UTC10m
2026-07-20 CSZ8271 - Jul 20, 00:25 UTCJul 20, 00:40 UTC15m
2026-07-19 CSZ8112 - Jul 19, 15:55 UTCJul 19, 16:05 UTC10m
2026-07-19 CSZ8111 - Jul 19, 07:10 UTCJul 19, 07:20 UTC10m
2026-07-19 CSZ9512 - Jul 19, 04:30 UTCJul 19, 06:00 UTC1h 30m
2026-07-19 CSZ9511 SZX → PVG Jul 19, 00:05 UTCJul 19, 00:15 UTC10m
2026-07-18 CSZ108 - Jul 18, 19:10 UTCJul 18, 19:25 UTC15m
2026-07-18 CSZ107 - Jul 18, 16:15 UTCJul 18, 16:35 UTC20m
2026-07-18 CSZ308 - Jul 18, 14:40 UTCJul 18, 15:00 UTC20m
2026-07-18 CSZ308 - Jul 18, 12:30 UTCJul 18, 12:45 UTC15m
2026-07-18 CSZ307 - Jul 18, 10:30 UTCJul 18, 10:50 UTC20m
2026-07-18 CSZ307 - Jul 18, 08:35 UTCJul 18, 09:20 UTC45m
2026-07-18 CSZ9142 YCU → SZX Jul 18, 06:15 UTCJul 18, 06:30 UTC15m
2026-07-18 CSZ9141 - Jul 18, 00:25 UTCJul 18, 00:35 UTC10m
2026-07-17 CSZ8112 - Jul 17, 16:10 UTCJul 17, 16:19 UTC10m
2026-07-17 CSZ8111 - Jul 17, 07:05 UTCJul 17, 07:20 UTC15m
2026-07-17 CSZ9512 - Jul 17, 04:59 UTCJul 17, 05:50 UTC50m
2026-07-16 CSZ9511 - Jul 16, 23:59 UTCJul 17, 00:14 UTC15m
2026-07-16 CSZ310 - Jul 16, 06:25 UTCJul 16, 06:45 UTC20m
2026-07-16 CSZ309 - Jul 16, 04:45 UTCJul 16, 05:00 UTC15m
2026-07-16 CSZ309 - Jul 16, 02:45 UTCJul 16, 03:05 UTC20m
2026-07-15 CSZ8271 - Jul 15, 00:15 UTCJul 15, 00:25 UTC10m
2026-07-14 CSZ108 - Jul 14, 20:30 UTCJul 14, 20:40 UTC10m
2026-07-14 CSZ108 - Jul 14, 19:20 UTCJul 14, 19:35 UTC15m

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-32PD page for operator, model, and routing details .

Mode-S 78233B frequently asked

What is Mode-S code 78233B?
78233B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32PD.
Where is Mode-S 78233B registered?
Mode-S code 78233B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78233B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78233B, octal 36021473, decimal 7,873,339.
What flights does 78233B operate?
Mode-S 78233B has broadcast 20 distinct callsigns, including CSZ310, CSZ308, CSZ307, CSZ306, CSZ309.