Apparatus

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sensors Mode-S transponder

7805FD

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6629 · AIRBUS A-321

Hex
7805FD
Octal
36002775
Decimal
7,865,853
Country
CN
Tail
B-6629
Type
A321
No current signal · last broadcast Jul 26, 14:15 UTC
Flights observed
342
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:15 UTC

Last known position

Most recent position reported by Mode-S 7805FD.

Country allocation

The ICAO 24-bit address 7805FD 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
CSN8324 - 19 2026-07-17
CSN8323 - 17 2026-07-17
CSN8076 - 15 2026-07-03
CSN8075 - 12 2026-07-03
CSN8284 - 9 2026-07-21
CSN8466 China Southern Airlines 8 2026-07-21
CSN8465 - 8 2026-07-21
CSN8283 China Southern Airlines 8 2026-07-20
CSN3172 - 7 2026-06-21
CSN8083 - 6 2026-07-07
CSN3192 China Southern Airlines 5 2026-07-22
CSN3188 China Southern Airlines 5 2026-07-23
CSN3169 - 5 2026-06-21
CSN3160 China Southern Airlines 5 2026-07-18
CSN3159 China Southern Airlines 5 2026-07-18
CSN8084 - 4 2026-07-07
CSN5844 - 4 2026-06-17
CSN3235 - 4 2026-07-09
CSN3191 - 4 2026-07-14
CSN3173 China Southern Airlines 4 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN6793 HAK → CAN Jul 26, 14:05 UTCJul 26, 14:15 UTC10m
2026-07-25 CSN8797 SZX → TNA Jul 25, 02:30 UTCJul 25, 02:40 UTC10m
2026-07-25 CSN8504 NGB → SZX Jul 25, 00:15 UTCJul 25, 00:40 UTC25m
2026-07-24 CSN8503 - Jul 24, 14:25 UTCJul 24, 14:35 UTC10m
2026-07-24 CSN5458 WUH → SZX Jul 24, 12:40 UTCJul 24, 12:55 UTC15m
2026-07-24 CSN5457 SZX → WUH Jul 24, 08:20 UTCJul 24, 08:40 UTC20m
2026-07-24 CSN5101 SZX → YIW Jul 24, 01:45 UTCJul 24, 06:35 UTC4h 50m
2026-07-23 CSN3955 SZX → HAK Jul 23, 13:40 UTCJul 23, 13:55 UTC15m
2026-07-23 CSN3188 PKX → SZX Jul 23, 12:10 UTCJul 23, 12:25 UTC15m
2026-07-22 CSN3192 PEK → SZX Jul 22, 05:15 UTCJul 22, 05:25 UTC10m
2026-07-21 CSN3173 SZX → PKX Jul 21, 12:05 UTCJul 21, 12:20 UTC15m
2026-07-21 CSN8466 SGN → SZX Jul 21, 10:20 UTCJul 21, 10:35 UTC15m
2026-07-21 CSN8465 - Jul 21, 04:50 UTCJul 21, 05:05 UTC15m
2026-07-21 CSN8284 - Jul 21, 02:30 UTCJul 21, 02:45 UTC15m
2026-07-20 CSN8283 SZX → HET Jul 20, 13:05 UTCJul 20, 13:15 UTC10m
2026-07-20 CSN8470 HAN → SZX Jul 20, 10:15 UTCJul 20, 10:40 UTC25m
2026-07-20 CSN8469 SZX → HAN Jul 20, 07:25 UTCJul 20, 07:45 UTC20m
2026-07-20 CSN6970 NAO → SZX Jul 20, 05:40 UTCJul 20, 05:50 UTC10m
2026-07-20 CSN6969 - Jul 20, 00:55 UTCJul 20, 01:10 UTC15m
2026-07-19 CSN8158 - Jul 19, 22:05 UTCJul 19, 22:25 UTC20m
2026-07-19 CSN8158 - Jul 19, 20:05 UTCJul 19, 20:20 UTC15m
2026-07-19 CSN8157 SZX → BKK Jul 19, 15:55 UTCJul 19, 16:15 UTC20m
2026-07-19 CSN3174 PKX → SZX Jul 19, 13:30 UTCJul 19, 13:55 UTC25m
2026-07-19 CSN3153 - Jul 19, 06:45 UTCJul 19, 07:05 UTC20m
2026-07-19 CSN3192 - Jul 19, 05:20 UTCJul 19, 05:30 UTC10m
2026-07-18 CSN3155 SZX → PEK Jul 18, 12:15 UTCJul 18, 12:35 UTC20m
2026-07-18 CSN3160 PEK → SZX Jul 18, 10:40 UTCJul 18, 10:50 UTC10m
2026-07-18 CSN3159 SZX → PEK Jul 18, 02:50 UTCJul 18, 03:05 UTC15m
2026-07-17 CSN8324 - Jul 17, 13:20 UTCJul 17, 13:29 UTC10m
2026-07-17 CSN8324 - Jul 17, 11:00 UTCJul 17, 11:15 UTC15m
2026-07-17 CSN8323 - Jul 17, 09:20 UTCJul 17, 09:45 UTC25m
2026-07-17 CSN8323 - Jul 17, 07:25 UTCJul 17, 08:04 UTC40m
2026-07-17 CSN3192 - Jul 17, 05:35 UTCJul 17, 05:45 UTC10m
2026-07-16 CSN3173 - Jul 16, 10:55 UTCJul 16, 11:10 UTC15m
2026-07-16 CSN8477 - Jul 16, 04:15 UTCJul 16, 04:25 UTC10m
2026-07-16 CSN8738 - Jul 16, 01:35 UTCJul 16, 02:05 UTC30m
2026-07-15 CSN8737 - Jul 15, 13:40 UTCJul 15, 13:55 UTC15m
2026-07-15 CSN3188 - Jul 15, 11:40 UTCJul 15, 12:00 UTC20m
2026-07-14 CSN3191 - Jul 14, 09:40 UTCJul 14, 09:55 UTC15m
2026-07-14 CSN6752 - Jul 14, 06:50 UTCJul 14, 07:50 UTC1h 0m
2026-07-14 CSN6751 - Jul 14, 02:05 UTCJul 14, 02:15 UTC10m
2026-07-13 CSN6386 - Jul 13, 09:50 UTCJul 13, 10:00 UTC10m
2026-07-13 CSN6386 - Jul 13, 03:40 UTCJul 13, 07:25 UTC3h 45m
2026-07-13 CSN6385 - Jul 13, 01:15 UTCJul 13, 01:35 UTC20m
2026-07-12 CSN8498 - Jul 12, 14:15 UTCJul 12, 15:40 UTC1h 25m
2026-07-12 CSN315V - Jul 12, 07:25 UTCJul 12, 07:50 UTC25m
2026-07-11 CSN3167 - Jul 11, 05:40 UTCJul 11, 05:50 UTC10m
2026-07-11 CSN6254 - Jul 11, 03:20 UTCJul 11, 03:35 UTC15m
2026-07-11 CSN6253 - Jul 11, 00:35 UTCJul 11, 00:55 UTC20m
2026-07-10 CSN8166 - Jul 10, 13:50 UTCJul 10, 14:00 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-6629 page for operator, model, and routing details .

Mode-S 7805FD frequently asked

What is Mode-S code 7805FD?
7805FD is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6629.
Where is Mode-S 7805FD registered?
Mode-S code 7805FD is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7805FD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7805FD, octal 36002775, decimal 7,865,853.
What flights does 7805FD operate?
Mode-S 7805FD has broadcast 20 distinct callsigns, including CSN8324, CSN8323, CSN8076, CSN8075, CSN8284.