Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7813D9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1088 · AIRBUS A-321neo

Hex
7813D9
Octal
36011731
Decimal
7,869,401
Country
CN
Tail
B-1088
Type
A21N
Broadcasting now · callsign CSN358 · 30,275 ft
Flights observed
75
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Current position

7813D9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7813D9 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
CSN3040 China Southern Airlines 8 2026-05-16
CSN339 China Southern Airlines 6 2026-05-24
CSN3039 China Southern Airlines 6 2026-05-16
CSN340 China Southern Airlines 5 2026-05-13
CSN8099 China Southern Airlines 4 2026-05-22
CSN361 - 4 2026-04-15
CSN352 China Southern Airlines 4 2026-05-21
CSN8100 China Southern Airlines 3 2026-05-22
CSN364 China Southern Airlines 3 2026-05-23
CSN363 China Southern Airlines 3 2026-05-23
CSN357 China Southern Airlines 3 2026-05-30
CSN8484 China Southern Airlines 2 2026-05-29
CSN8149 China Southern Airlines 2 2026-05-18
CSN362 China Southern Airlines 2 2026-04-16
CSN358 China Southern Airlines 2 2026-05-19
CSN351 China Southern Airlines 2 2026-05-20
CSN3062 China Southern Airlines 2 2026-05-28
CSN3061 China Southern Airlines 2 2026-05-28
CSN8797 China Southern Airlines 1 2026-04-28
CSN8712 China Southern Airlines 1 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSN357 CAN → BKK May 30, 00:55 UTCMay 30, 03:00 UTC2h 5m
2026-05-29 CSN8484 BKI → CAN May 29, 21:25 UTCMay 29, 21:50 UTC25m
2026-05-29 CSN8484 BKI → CAN May 29, 19:05 UTCMay 29, 20:30 UTC1h 25m
2026-05-29 CSN8483 CAN → BKI May 29, 15:35 UTCMay 29, 18:05 UTC2h 30m
2026-05-28 CSN3062 ICN → CAN May 28, 07:50 UTCMay 28, 08:15 UTC25m
2026-05-28 CSN3061 CAN → ICN May 28, 05:40 UTCMay 28, 06:10 UTC30m
2026-05-24 CSN339 CAN → ICN May 24, 12:00 UTCMay 24, 12:30 UTC30m
2026-05-23 CSN364 BKK → CAN May 23, 12:00 UTCMay 23, 12:40 UTC40m
2026-05-23 CSN363 CAN → BKK May 23, 08:15 UTCMay 23, 10:25 UTC2h 10m
2026-05-22 CSN8100 BKK → CAN May 22, 06:55 UTCMay 22, 07:40 UTC45m
2026-05-22 CSN8099 CAN → BKK May 22, 03:10 UTCMay 22, 05:25 UTC2h 15m
2026-05-21 CSN352 SIN → CAN May 21, 03:15 UTCMay 21, 03:40 UTC25m
2026-05-21 CSN352 SIN → CAN May 21, 00:15 UTCMay 21, 00:30 UTC15m
2026-05-20 CSN351 CAN → SIN May 20, 12:00 UTCMay 20, 15:10 UTC3h 10m
2026-05-19 CSN358 BKK → CAN May 19, 04:30 UTCMay 19, 04:55 UTC25m
2026-05-19 CSN357 CAN → BKK May 19, 00:45 UTCMay 19, 02:55 UTC2h 10m
2026-05-18 CSN364 BKK → CAN May 18, 12:00 UTCMay 18, 12:30 UTC30m
2026-05-18 CSN363 CAN → BKK May 18, 10:00 UTCMay 18, 10:35 UTC35m
2026-05-18 CSN8149 CAN → VTE May 18, 01:15 UTCMay 18, 01:25 UTC10m
2026-05-17 CSN358 BKK → CAN May 17, 04:20 UTCMay 17, 04:50 UTC30m
2026-05-17 CSN357 CAN → BKK May 17, 00:40 UTCMay 17, 02:55 UTC2h 15m
2026-05-16 CSN3040 SIN → CAN May 16, 13:21 UTCMay 16, 13:35 UTC15m
2026-05-16 CSN3040 SIN → CAN May 16, 10:16 UTCMay 16, 10:35 UTC20m
2026-05-16 CSN3039 CAN → SIN May 16, 07:55 UTCMay 16, 08:16 UTC20m
2026-05-16 CSN3039 CAN → SIN May 16, 05:10 UTCMay 16, 05:20 UTC10m
2026-05-14 CSN3803 CAN → HGH May 14, 01:30 UTCMay 14, 01:40 UTC10m
2026-05-13 CSN340 ICN → CAN May 13, 00:55 UTCMay 13, 01:35 UTC40m
2026-05-12 CSN339 CAN → ICN May 12, 11:45 UTCMay 12, 12:25 UTC40m
2026-05-11 CSN364 BKK → CAN May 11, 12:05 UTCMay 11, 12:45 UTC40m
2026-05-11 CSN363 CAN → BKK May 11, 08:20 UTCMay 11, 10:35 UTC2h 15m
2026-05-11 CSN8149 CAN → VTE May 11, 01:25 UTCMay 11, 01:40 UTC15m
2026-05-10 CSN340 ICN → CAN May 10, 00:55 UTCMay 10, 01:34 UTC40m
2026-05-09 CSN339 CAN → ICN May 9, 11:50 UTCMay 9, 12:25 UTC35m
2026-05-08 CSN3040 SIN → CAN May 8, 13:10 UTCMay 8, 13:40 UTC30m
2026-05-08 CSN3040 SIN → CAN May 8, 10:09 UTCMay 8, 10:29 UTC20m
2026-05-08 CSN3039 CAN → SIN May 8, 05:14 UTCMay 8, 08:14 UTC3h 0m
2026-05-05 CSN3407 CAN → KMG May 5, 06:10 UTCMay 5, 06:20 UTC10m
2026-05-05 CSN352 SIN → CAN May 5, 03:20 UTCMay 5, 03:50 UTC30m
2026-05-05 CSN352 SIN → CAN May 5, 00:25 UTCMay 5, 00:40 UTC15m
2026-05-04 CSN351 CAN → SIN May 4, 11:55 UTCMay 4, 15:05 UTC3h 10m
2026-05-03 CSN340 ICN → CAN May 3, 01:05 UTCMay 3, 01:50 UTC45m
2026-05-02 CSN339 CAN → ICN May 2, 11:35 UTCMay 2, 12:20 UTC45m
2026-05-01 CSN340 ICN → CAN May 1, 00:55 UTCMay 1, 01:35 UTC40m
2026-04-30 CSN339 CAN → ICN Apr 30, 11:35 UTCApr 30, 12:10 UTC35m
2026-04-28 CSN5458 WUH → SZX Apr 28, 14:15 UTCApr 28, 14:25 UTC10m
2026-04-28 CSN5457 SZX → WUH Apr 28, 08:25 UTCApr 28, 08:35 UTC10m
2026-04-28 CSN8797 SZX → TNA Apr 28, 00:25 UTCApr 28, 00:40 UTC15m
2026-04-27 CSN5841 SZX → XIY Apr 27, 07:20 UTCApr 27, 07:35 UTC15m
2026-04-27 CSN3560 NKG → SZX Apr 27, 05:50 UTCApr 27, 06:10 UTC20m
2026-04-26 CSN3964 TAO → SZX Apr 26, 16:00 UTCApr 26, 16:30 UTC30m

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-1088 page for operator, model, and routing details .

Mode-S 7813D9 frequently asked

What is Mode-S code 7813D9?
7813D9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1088.
Where is Mode-S 7813D9 registered?
Mode-S code 7813D9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7813D9 broadcasting right now?
Yes. Mode-S 7813D9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7813D9, octal 36011731, decimal 7,869,401.
What flights does 7813D9 operate?
Mode-S 7813D9 has broadcast 20 distinct callsigns, including CSN3040, CSN339, CSN3039, CSN340, CSN8099.