Apparatus

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sensors Mode-S transponder

7814FD

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-301U · AIRBUS A-321neo

Hex
7814FD
Octal
36012375
Decimal
7,869,693
Country
CN
Tail
B-301U
Type
A21N
No current signal · last broadcast 7h ago
Flights observed
111
Distinct callsigns
20
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 7814FD.

Country allocation

The ICAO 24-bit address 7814FD 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
CSN358 - 10 2026-06-29
CSN363 China Southern Airlines 9 2026-06-10
CSN357 - 9 2026-06-29
CSN3061 - 9 2026-06-27
CSN5015 - 7 2026-07-11
CSN352 - 7 2026-07-14
CSN3062 - 7 2026-06-27
CSN8484 China Southern Airlines 6 2026-05-30
CSN8483 China Southern Airlines 6 2026-05-30
CSN3040 - 6 2026-06-17
CSN5016 - 5 2026-07-11
CSN364 China Southern Airlines 4 2026-05-19
CSN351 - 4 2026-07-13
CSN339 - 4 2026-06-20
CSN340 - 3 2026-06-21
CSN8100 China Southern Airlines 2 2026-05-29
CSN8099 China Southern Airlines 2 2026-05-29
CSN3044 - 2 2026-07-12
CSN3039 - 2 2026-06-26
CSN8149 China Southern Airlines 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSN352 - Jul 14, 03:50 UTCJul 14, 04:00 UTC10m
2026-07-14 CSN352 - Jul 14, 00:35 UTCJul 14, 00:50 UTC15m
2026-07-13 CSN351 - Jul 13, 16:35 UTCJul 13, 16:45 UTC10m
2026-07-12 CSN3044 - Jul 12, 14:30 UTCJul 12, 14:40 UTC10m
2026-07-12 CSN3044 - Jul 12, 11:15 UTCJul 12, 11:35 UTC20m
2026-07-12 CSN3043 - Jul 12, 09:15 UTCJul 12, 09:40 UTC25m
2026-07-11 CSN5016 - Jul 11, 07:20 UTCJul 12, 01:35 UTC18h 15m
2026-07-11 CSN5015 - Jul 11, 04:05 UTCJul 11, 05:15 UTC1h 10m
2026-07-09 CSN5857 - Jul 9, 11:10 UTCJul 9, 11:45 UTC35m
2026-07-02 CSN6310 - Jul 2, 09:40 UTCJul 2, 09:50 UTC10m
2026-06-29 CSN358 - Jun 29, 04:30 UTCJun 29, 04:55 UTC25m
2026-06-29 CSN357 - Jun 29, 02:25 UTCJun 29, 02:54 UTC30m
2026-06-27 CSN3062 - Jun 27, 07:59 UTCJun 27, 08:39 UTC40m
2026-06-27 CSN3061 - Jun 27, 05:19 UTCJun 27, 05:55 UTC35m
2026-06-26 CSN3061 - Jun 26, 10:10 UTCJun 27, 05:55 UTC19h 45m
2026-06-26 CSN3039 - Jun 26, 08:24 UTCJun 26, 08:34 UTC10m
2026-06-25 CSN3407 - Jun 25, 06:55 UTCJun 25, 07:09 UTC15m
2026-06-25 CSN352 - Jun 25, 03:44 UTCJun 25, 03:54 UTC10m
2026-06-25 CSN352 - Jun 25, 00:35 UTCJun 25, 00:55 UTC20m
2026-06-24 CSN351 - Jun 24, 14:50 UTCJun 24, 15:00 UTC10m
2026-06-24 CSN351 - Jun 24, 11:54 UTCJun 24, 12:04 UTC10m
2026-06-21 CSN340 - Jun 21, 01:05 UTCJun 21, 01:49 UTC45m
2026-06-20 CSN339 - Jun 20, 11:49 UTCJun 20, 12:30 UTC40m
2026-06-20 CSN339 - Jun 20, 09:34 UTCJun 20, 09:44 UTC10m
2026-06-20 CSN358 - Jun 20, 04:44 UTCJun 20, 05:09 UTC25m
2026-06-20 CSN357 - Jun 20, 02:49 UTCJun 20, 03:19 UTC30m
2026-06-19 CSN352 - Jun 19, 03:39 UTCJun 19, 03:55 UTC15m
2026-06-19 CSN352 - Jun 19, 00:24 UTCJun 19, 00:45 UTC20m
2026-06-17 CSN3040 - Jun 17, 14:55 UTCJun 17, 15:10 UTC15m
2026-06-17 CSN3040 - Jun 17, 11:40 UTCJun 17, 11:50 UTC10m
2026-06-15 CSN358 - Jun 15, 04:30 UTCJun 15, 04:55 UTC25m
2026-06-15 CSN357 - Jun 15, 02:24 UTCJun 15, 02:55 UTC30m
2026-06-13 CSN3040 SIN → CAN Jun 13, 11:50 UTCJun 13, 12:10 UTC20m
2026-06-11 CSN3062 ICN → CAN Jun 11, 07:55 UTCJun 11, 08:20 UTC25m
2026-06-10 CSN3061 CAN → ICN Jun 10, 12:15 UTCJun 11, 06:15 UTC18h 0m
2026-06-10 CSN363 CAN → BKK Jun 10, 10:10 UTCJun 10, 10:45 UTC35m
2026-06-07 CSN5016 DAC → CAN Jun 7, 07:30 UTCJun 7, 07:45 UTC15m
2026-06-07 CSN5015 CAN → DAC Jun 7, 05:00 UTCJun 7, 05:20 UTC20m
2026-06-06 CSN3040 SIN → CAN Jun 6, 13:05 UTCJun 6, 13:20 UTC15m
2026-06-06 CSN3039 CAN → SIN Jun 6, 05:35 UTCJun 6, 05:45 UTC10m
2026-06-04 CSN5016 DAC → CAN Jun 4, 07:20 UTCJun 4, 07:35 UTC15m
2026-06-04 CSN5015 CAN → DAC Jun 4, 05:05 UTCJun 4, 05:25 UTC20m
2026-06-03 CSN3062 ICN → CAN Jun 3, 07:50 UTCJun 3, 08:15 UTC25m
2026-06-03 CSN3061 CAN → ICN Jun 3, 05:25 UTCJun 3, 05:55 UTC30m
2026-05-30 CSN8484 BKI → CAN May 30, 17:50 UTCMay 30, 18:15 UTC25m
2026-05-30 CSN8483 CAN → BKI May 30, 13:45 UTCMay 30, 16:10 UTC2h 25m
2026-05-29 CSN8100 BKK → CAN May 29, 07:30 UTCMay 29, 08:05 UTC35m
2026-05-29 CSN8099 CAN → BKK May 29, 04:30 UTCMay 29, 05:05 UTC35m
2026-05-27 CSN8484 BKI → CAN May 27, 20:15 UTCMay 27, 20:30 UTC15m
2026-05-27 CSN8484 BKI → CAN May 27, 17:55 UTCMay 27, 18:20 UTC25m

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-301U page for operator, model, and routing details .

Mode-S 7814FD frequently asked

What is Mode-S code 7814FD?
7814FD is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-301U.
Where is Mode-S 7814FD registered?
Mode-S code 7814FD is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7814FD broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7814FD, octal 36012375, decimal 7,869,693.
What flights does 7814FD operate?
Mode-S 7814FD has broadcast 20 distinct callsigns, including CSN358, CSN363, CSN357, CSN3061, CSN5015.