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
Broadcasting now · callsign CSZ308 · 3,125 ft
Flights observed
143
Distinct callsigns
20
Country
CN
Last broadcast
14m ago

Current position

78233B is currently broadcasting. Map zoomed to live position.

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
CSZ9245 Shenzhen Airlines 10 2026-05-18
CSZ310 Shenzhen Airlines 8 2026-05-29
CSZ308 Shenzhen Airlines 7 2026-05-30
CSZ307 Shenzhen Airlines 7 2026-05-30
CSZ306 Shenzhen Airlines 7 2026-05-28
CSZ9844 Shenzhen Airlines 6 2026-05-20
CSZ9241 Shenzhen Airlines 6 2026-05-17
CSZ309 Shenzhen Airlines 6 2026-05-29
CSZ305 Shenzhen Airlines 6 2026-05-28
CSZ9843 Shenzhen Airlines 4 2026-05-20
CSZ9530 Shenzhen Airlines 4 2026-05-29
CSZ9529 Shenzhen Airlines 4 2026-05-29
CSZ9528 Shenzhen Airlines 3 2026-04-20
CSZ9246 Shenzhen Airlines 3 2026-05-08
CSZ9141 Shenzhen Airlines 3 2026-05-28
CSZ9850 Shenzhen Airlines 2 2026-05-21
CSZ9849 Shenzhen Airlines 2 2026-05-20
CSZ9602 Shenzhen Airlines 2 2026-04-29
CSZ9527 Shenzhen Airlines 2 2026-04-20
CSZ9522 Shenzhen Airlines 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSZ308 BKK → SZX May 30, 12:35 UTCMay 30, 14:45 UTC2h 10m
2026-05-30 CSZ307 SZX → BKK May 30, 09:15 UTCMay 30, 10:55 UTC1h 40m
2026-05-30 CSZ307 SZX → BKK May 30, 08:30 UTCMay 30, 08:45 UTC15m
2026-05-30 CSZ9330 SZX → CGO May 30, 05:25 UTCMay 30, 05:40 UTC15m
2026-05-30 CSZ9329 CGO → SZX May 30, 00:55 UTCMay 30, 01:10 UTC15m
2026-05-29 CSZ9530 PVG → CAN May 29, 16:50 UTCMay 29, 18:10 UTC1h 20m
2026-05-29 CSZ9529 CAN → PVG May 29, 11:05 UTCMay 29, 11:15 UTC10m
2026-05-29 CSZ310 BKK → SZX May 29, 07:40 UTCMay 29, 08:00 UTC20m
2026-05-29 CSZ310 BKK → SZX May 29, 05:30 UTCMay 29, 06:15 UTC45m
2026-05-29 CSZ309 SZX → BKK May 29, 03:00 UTCMay 29, 03:35 UTC35m
2026-05-29 CSZ309 SZX → BKK May 29, 01:20 UTCMay 29, 01:40 UTC20m
2026-05-28 CSZ306 BKK → SZX May 28, 23:05 UTCMay 28, 23:20 UTC15m
2026-05-28 CSZ306 BKK → SZX May 28, 20:45 UTCMay 28, 22:30 UTC1h 45m
2026-05-28 CSZ305 SZX → BKK May 28, 16:35 UTCMay 28, 19:15 UTC2h 40m
2026-05-28 CSZ308 BKK → SZX May 28, 15:00 UTCMay 28, 15:10 UTC10m
2026-05-28 CSZ308 BKK → SZX May 28, 12:35 UTCMay 28, 14:15 UTC1h 40m
2026-05-28 CSZ307 SZX → BKK May 28, 08:20 UTCMay 28, 10:40 UTC2h 20m
2026-05-28 CSZ9142 YCU → SZX May 28, 06:35 UTCMay 28, 06:50 UTC15m
2026-05-28 CSZ9141 SZX → YCU May 28, 00:30 UTCMay 28, 00:40 UTC10m
2026-05-27 CSZ9207 SZX → XIY May 27, 10:25 UTCMay 27, 10:35 UTC10m
2026-05-27 CSZ310 BKK → SZX May 27, 07:20 UTCMay 27, 07:40 UTC20m
2026-05-27 CSZ310 BKK → SZX May 27, 05:19 UTCMay 27, 05:55 UTC35m
2026-05-27 CSZ309 SZX → BKK May 27, 02:59 UTCMay 27, 03:45 UTC45m
2026-05-26 CSZ306 BKK → SZX May 26, 22:39 UTCMay 26, 22:54 UTC15m
2026-05-26 CSZ306 BKK → SZX May 26, 20:34 UTCMay 26, 21:14 UTC40m
2026-05-26 CSZ305 SZX → BKK May 26, 18:14 UTCMay 26, 18:55 UTC40m
2026-05-26 CSZ305 SZX → BKK May 26, 16:40 UTCMay 26, 16:55 UTC15m
2026-05-26 CSZ308 BKK → SZX May 26, 14:35 UTCMay 26, 14:55 UTC20m
2026-05-26 CSZ308 BKK → SZX May 26, 12:24 UTCMay 26, 13:10 UTC45m
2026-05-26 CSZ307 SZX → BKK May 26, 10:10 UTCMay 26, 10:54 UTC45m
2026-05-26 CSZ307 SZX → BKK May 26, 08:30 UTCMay 26, 08:39 UTC10m
2026-05-26 CSZ9142 YCU → SZX May 26, 06:14 UTCMay 26, 06:29 UTC15m
2026-05-26 CSZ9141 SZX → YCU May 26, 01:00 UTCMay 26, 01:14 UTC15m
2026-05-25 CSZ308 BKK → SZX May 25, 15:05 UTCMay 25, 15:20 UTC15m
2026-05-25 CSZ308 BKK → SZX May 25, 13:00 UTCMay 25, 13:35 UTC35m
2026-05-25 CSZ307 SZX → BKK May 25, 10:50 UTCMay 25, 11:50 UTC1h 0m
2026-05-25 CSZ307 SZX → BKK May 25, 09:15 UTCMay 25, 09:35 UTC20m
2026-05-25 CSZ310 BKK → SZX May 25, 07:30 UTCMay 25, 07:45 UTC15m
2026-05-25 CSZ310 BKK → SZX May 25, 05:25 UTCMay 25, 06:00 UTC35m
2026-05-25 CSZ309 SZX → BKK May 25, 03:10 UTCMay 25, 03:50 UTC40m
2026-05-24 CSZ306 BKK → SZX May 24, 20:50 UTCMay 24, 21:30 UTC40m
2026-05-24 CSZ305 SZX → BKK May 24, 16:50 UTCMay 24, 19:05 UTC2h 15m
2026-05-24 CSZ9892 PVG → SZX May 24, 15:15 UTCMay 24, 15:40 UTC25m
2026-05-24 CSZ9891 SZX → PVG May 24, 10:55 UTCMay 24, 11:10 UTC15m
2026-05-24 CSZ9141 SZX → YCU May 24, 00:30 UTCMay 24, 00:40 UTC10m
2026-05-23 CSZ9947 SZX → WUH May 23, 10:30 UTCMay 23, 10:40 UTC10m
2026-05-23 CSZ310 BKK → SZX May 23, 07:35 UTCMay 23, 07:50 UTC15m
2026-05-23 CSZ310 BKK → SZX May 23, 05:25 UTCMay 23, 06:05 UTC40m
2026-05-23 CSZ309 SZX → BKK May 23, 03:00 UTCMay 23, 03:50 UTC50m
2026-05-23 CSZ309 SZX → BKK May 23, 01:30 UTCMay 23, 01:40 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-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?
Yes. Mode-S 78233B is currently airborne.
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 CSZ9245, CSZ310, CSZ308, CSZ307, CSZ306.