Apparatus

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sensors Mode-S transponder

78183F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-20DZ · BOEING 737 MAX 8

Hex
78183F
Octal
36014077
Decimal
7,870,527
Country
CN
Tail
B-20DZ
Type
B38M
Broadcasting now · callsign CSZ9924 · 32,100 ft
Flights observed
148
Distinct callsigns
20
Country
CN
Last broadcast
10h ago

Current position

78183F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 78183F 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
CSZ651 Shenzhen Airlines 18 2026-05-28
CSZ652 Shenzhen Airlines 17 2026-05-28
CSZ240 Shenzhen Airlines 12 2026-04-29
CSZ662 Shenzhen Airlines 11 2026-05-29
CSZ239 Shenzhen Airlines 11 2026-04-29
CSZ9924 Shenzhen Airlines 10 2026-05-28
CSZ661 Shenzhen Airlines 9 2026-05-29
CSZ9918 Shenzhen Airlines 6 2026-05-19
CSZ118 Shenzhen Airlines 6 2026-05-26
CSZ117 Shenzhen Airlines 6 2026-05-26
CSZ9923 Shenzhen Airlines 5 2026-05-29
CSZ9917 Shenzhen Airlines 3 2026-04-27
CSZ8938 Shenzhen Airlines 3 2026-04-25
CSZ9920 Shenzhen Airlines 2 2026-05-18
CSZ9637 Shenzhen Airlines 2 2026-05-22
CSZ8937 Shenzhen Airlines 2 2026-04-25
CSZ8594 Shenzhen Airlines 2 2026-05-06
CSZ9950 Shenzhen Airlines 1 2026-04-24
CSZ9936 Shenzhen Airlines 1 2026-04-18
CSZ9922 Shenzhen Airlines 1 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSZ9923 SZX → CTU May 29, 15:25 UTCMay 29, 15:30 UTC5m
2026-05-29 CSZ662 KIX → SZX May 29, 09:55 UTCMay 29, 10:15 UTC20m
2026-05-29 CSZ662 KIX → SZX May 29, 06:20 UTCMay 29, 07:10 UTC50m
2026-05-29 CSZ661 SZX → KIX May 29, 03:55 UTCMay 29, 04:40 UTC45m
2026-05-29 CSZ661 SZX → KIX May 29, 01:30 UTCMay 29, 01:40 UTC10m
2026-05-28 CSZ652 NRT → SZX May 28, 14:35 UTCMay 28, 14:50 UTC15m
2026-05-28 CSZ652 NRT → SZX May 28, 10:25 UTCMay 28, 12:00 UTC1h 35m
2026-05-28 CSZ651 SZX → NRT May 28, 07:10 UTCMay 28, 08:35 UTC1h 25m
2026-05-28 CSZ651 SZX → NRT May 28, 04:35 UTCMay 28, 04:50 UTC15m
2026-05-28 CSZ9924 CTU → SZX May 28, 02:45 UTCMay 28, 03:10 UTC25m
2026-05-27 CSZ662 KIX → SZX May 27, 09:55 UTCMay 27, 10:15 UTC20m
2026-05-27 CSZ662 KIX → SZX May 27, 06:29 UTCMay 27, 07:15 UTC46m
2026-05-27 CSZ661 SZX → KIX May 27, 04:19 UTCMay 27, 05:04 UTC45m
2026-05-27 CSZ661 SZX → KIX May 27, 01:44 UTCMay 27, 01:54 UTC10m
2026-05-26 CSZ118 SGN → SZX May 26, 21:55 UTCMay 26, 22:09 UTC15m
2026-05-26 CSZ117 SZX → SGN May 26, 16:45 UTCMay 26, 16:55 UTC10m
2026-05-26 CSZ9133 SZX → TYN May 26, 06:54 UTCMay 26, 07:05 UTC10m
2026-05-26 CSZ8926 - May 26, 04:30 UTCMay 26, 04:39 UTC10m
2026-05-25 CSZ8925 - May 25, 23:54 UTCMay 26, 00:04 UTC10m
2026-05-25 CSZ9922 NTG → SZX May 25, 13:50 UTCMay 25, 14:35 UTC45m
2026-05-25 CSZ9921 SZX → NTG May 25, 07:35 UTCMay 25, 07:45 UTC10m
2026-05-25 CSZ9912 TAO → SZX May 25, 05:35 UTCMay 25, 06:00 UTC25m
2026-05-24 CSZ156 PNH → SZX May 24, 07:45 UTCMay 24, 08:05 UTC20m
2026-05-24 CSZ155 - May 24, 01:35 UTCMay 24, 01:45 UTC10m
2026-05-23 CSZ118 SGN → SZX May 23, 22:35 UTCMay 23, 22:50 UTC15m
2026-05-23 CSZ117 SZX → SGN May 23, 16:45 UTCMay 23, 16:55 UTC10m
2026-05-23 CSZ652 NRT → SZX May 23, 10:10 UTCMay 23, 11:50 UTC1h 40m
2026-05-23 CSZ651 SZX → NRT May 23, 07:10 UTCMay 23, 08:30 UTC1h 20m
2026-05-23 CSZ9924 CTU → SZX May 23, 02:55 UTCMay 23, 03:15 UTC20m
2026-05-22 CSZ9638 CGQ → SZX May 22, 09:40 UTCMay 22, 09:55 UTC15m
2026-05-22 CSZ9637 SZX → CGQ May 22, 02:25 UTCMay 22, 02:35 UTC10m
2026-05-22 CSZ9637 SZX → CGQ May 22, 00:05 UTCMay 22, 00:15 UTC10m
2026-05-21 CSZ9528 PVG → SZX May 21, 17:05 UTCMay 21, 18:20 UTC1h 15m
2026-05-21 CSZ9527 SZX → PVG May 21, 12:15 UTCMay 21, 12:25 UTC10m
2026-05-21 CSZ118 SGN → SZX May 21, 10:00 UTCMay 21, 10:25 UTC25m
2026-05-21 CSZ117 SZX → SGN May 21, 04:40 UTCMay 21, 04:50 UTC10m
2026-05-20 CSZ652 NRT → SZX May 20, 10:20 UTCMay 20, 11:50 UTC1h 30m
2026-05-20 CSZ651 SZX → NRT May 20, 07:05 UTCMay 20, 08:30 UTC1h 25m
2026-05-20 CSZ9924 CTU → SZX May 20, 03:05 UTCMay 20, 03:25 UTC20m
2026-05-19 CSZ9918 PVG → SZX May 19, 10:00 UTCMay 19, 10:20 UTC20m
2026-05-18 CSZ9920 TAO → SZX May 18, 14:45 UTCMay 18, 15:05 UTC20m
2026-05-18 CSZ9301 SZX → CGO May 18, 00:00 UTCMay 18, 00:10 UTC10m
2026-05-17 CSZ9208 XIY → SZX May 17, 18:30 UTCMay 17, 18:40 UTC10m
2026-05-17 CSZ8663 NTG → TYN May 17, 05:10 UTCMay 17, 05:20 UTC10m
2026-05-16 CSZ9920 TAO → SZX May 16, 13:35 UTCMay 16, 14:41 UTC1h 5m
2026-05-16 CSZ9900 HFE → SZX May 16, 04:35 UTCMay 16, 05:25 UTC50m
2026-05-16 CSZ9899 SZX → HFE May 16, 00:50 UTCMay 16, 01:00 UTC10m
2026-05-11 CSZ652 NRT → SZX May 11, 10:15 UTCMay 11, 11:40 UTC1h 25m
2026-05-11 CSZ651 SZX → NRT May 11, 07:25 UTCMay 11, 08:50 UTC1h 25m
2026-05-11 CSZ651 SZX → NRT May 11, 05:00 UTCMay 11, 05:10 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-20DZ page for operator, model, and routing details .

Mode-S 78183F frequently asked

What is Mode-S code 78183F?
78183F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-20DZ.
Where is Mode-S 78183F registered?
Mode-S code 78183F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78183F broadcasting right now?
Yes. Mode-S 78183F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78183F, octal 36014077, decimal 7,870,527.
What flights does 78183F operate?
Mode-S 78183F has broadcast 20 distinct callsigns, including CSZ651, CSZ652, CSZ240, CSZ662, CSZ239.