Apparatus

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sensors Mode-S transponder

7813F7

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1126 · BOEING 737 MAX 8

Hex
7813F7
Octal
36011767
Decimal
7,869,431
Country
CN
Tail
B-1126
Type
B38M
No current signal · last broadcast 36m ago
Flights observed
126
Distinct callsigns
20
Country
CN
Last broadcast
36m ago

Last known position

Most recent position reported by Mode-S 7813F7.

Country allocation

The ICAO 24-bit address 7813F7 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
CSN398 China Southern Airlines 21 2026-05-28
CSN365 China Southern Airlines 18 2026-05-26
CSN3055 China Southern Airlines 17 2026-05-29
CSN397 China Southern Airlines 12 2026-05-28
CSN366 China Southern Airlines 10 2026-05-27
CSN3056 China Southern Airlines 8 2026-05-23
CSN8072 China Southern Airlines 5 2026-05-23
CSN8071 China Southern Airlines 5 2026-05-22
CSN8347 China Southern Airlines 4 2026-05-07
CSN8362 China Southern Airlines 3 2026-05-28
CSN8348 China Southern Airlines 3 2026-05-07
CSN8012 China Southern Airlines 3 2026-05-29
CSN8011 China Southern Airlines 3 2026-05-29
CSN3047 China Southern Airlines 3 2026-05-22
CSN6881 China Southern Airlines 2 2026-05-21
CSN5056 China Southern Airlines 2 2026-05-19
CSN5055 China Southern Airlines 2 2026-05-18
CSN3048 China Southern Airlines 2 2026-04-24
CSN8361 China Southern Airlines 1 2026-05-27
CSN8301 China Southern Airlines 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSN3055 CAN → RGN May 29, 11:15 UTCMay 30, 03:30 UTC16h 15m
2026-05-29 CSN8012 MEL → CAN May 29, 09:00 UTCMay 29, 09:10 UTC10m
2026-05-29 CSN8011 CAN → MEL May 29, 06:55 UTCMay 29, 07:15 UTC20m
2026-05-28 CSN398 MNL → CAN May 28, 10:30 UTCMay 28, 12:20 UTC1h 50m
2026-05-28 CSN397 CAN → MNL May 28, 06:45 UTCMay 28, 08:40 UTC1h 55m
2026-05-28 CSN8362 DRW → CAN May 28, 02:55 UTCMay 28, 03:10 UTC15m
2026-05-28 CSN8362 DRW → CAN May 28, 01:35 UTCMay 28, 02:00 UTC25m
2026-05-27 CSN8362 DRW → CAN May 27, 22:05 UTCMay 27, 22:15 UTC10m
2026-05-27 CSN8361 CAN → DRW May 27, 14:50 UTCMay 27, 16:25 UTC1h 35m
2026-05-27 CSN398 MNL → CAN May 27, 11:25 UTCMay 27, 11:45 UTC20m
2026-05-27 CSN398 MNL → CAN May 27, 10:10 UTCMay 27, 10:40 UTC30m
2026-05-27 CSN397 CAN → MNL May 27, 06:44 UTCMay 27, 08:40 UTC1h 56m
2026-05-27 CSN366 KUL → CAN May 27, 00:04 UTCMay 27, 00:14 UTC10m
2026-05-26 CSN365 CAN → KUL May 26, 12:54 UTCMay 26, 13:29 UTC35m
2026-05-26 CSN3055 CAN → RGN May 26, 02:49 UTCMay 26, 06:20 UTC3h 30m
2026-05-25 CSN398 MNL → CAN May 25, 11:15 UTCMay 25, 11:35 UTC20m
2026-05-25 CSN398 MNL → CAN May 25, 09:55 UTCMay 25, 10:30 UTC35m
2026-05-25 CSN397 CAN → MNL May 25, 06:35 UTCMay 25, 08:30 UTC1h 55m
2026-05-24 CSN365 CAN → KUL May 24, 12:55 UTCMay 24, 13:25 UTC30m
2026-05-24 CSN365 CAN → KUL May 24, 10:05 UTCMay 24, 10:15 UTC10m
2026-05-23 CSN8072 KUL → CAN May 23, 18:30 UTCMay 23, 18:45 UTC15m
2026-05-23 CSN365 CAN → KUL May 23, 10:10 UTCMay 23, 13:35 UTC3h 25m
2026-05-23 CSN3056 RGN → CAN May 23, 05:05 UTCMay 23, 05:50 UTC45m
2026-05-23 CSN3055 CAN → RGN May 23, 01:05 UTCMay 23, 03:40 UTC2h 35m
2026-05-22 CSN8072 KUL → CAN May 22, 18:15 UTCMay 22, 18:30 UTC15m
2026-05-22 CSN8071 CAN → KUL May 22, 16:15 UTCMay 22, 16:50 UTC35m
2026-05-22 CSN3047 CAN → KUL May 22, 04:50 UTCMay 22, 05:25 UTC35m
2026-05-22 CSN3047 CAN → KUL May 22, 02:00 UTCMay 22, 02:10 UTC10m
2026-05-21 CSN6881 URC → CAN May 21, 17:25 UTCMay 21, 17:35 UTC10m
2026-05-21 CSN6881 URC → CAN May 21, 13:50 UTCMay 21, 14:10 UTC20m
2026-05-20 CSN8072 KUL → CAN May 20, 18:25 UTCMay 20, 18:35 UTC10m
2026-05-20 CSN8071 CAN → KUL May 20, 16:05 UTCMay 20, 16:35 UTC30m
2026-05-20 CSN8071 CAN → KUL May 20, 13:15 UTCMay 20, 13:25 UTC10m
2026-05-19 CSN8072 KUL → CAN May 19, 18:30 UTCMay 19, 18:45 UTC15m
2026-05-19 CSN8071 CAN → KUL May 19, 16:15 UTCMay 19, 16:40 UTC25m
2026-05-19 CSN5056 POM → CAN May 19, 08:30 UTCMay 19, 08:50 UTC20m
2026-05-18 CSN5055 CAN → POM May 18, 17:35 UTCMay 19, 07:45 UTC14h 9m
2026-05-18 CSN398 MNL → CAN May 18, 11:10 UTCMay 18, 11:25 UTC15m
2026-05-18 CSN398 MNL → CAN May 18, 09:45 UTCMay 18, 10:15 UTC30m
2026-05-18 CSN397 CAN → MNL May 18, 06:25 UTCMay 18, 08:05 UTC1h 40m
2026-05-18 CSN366 KUL → CAN May 18, 00:05 UTCMay 18, 00:20 UTC15m
2026-05-17 CSN365 CAN → KUL May 17, 13:05 UTCMay 17, 13:31 UTC25m
2026-05-17 CSN3056 RGN → CAN May 17, 05:10 UTCMay 17, 05:25 UTC15m
2026-05-17 CSN3055 CAN → RGN May 17, 02:35 UTCMay 17, 03:30 UTC55m
2026-05-16 CSN398 MNL → CAN May 16, 12:11 UTCMay 16, 12:31 UTC20m
2026-05-16 CSN398 MNL → CAN May 16, 10:46 UTCMay 16, 11:21 UTC35m
2026-05-16 CSN397 CAN → MNL May 16, 06:41 UTCMay 16, 08:26 UTC1h 45m
2026-05-16 CSN366 KUL → CAN May 16, 00:00 UTCMay 16, 00:15 UTC15m
2026-05-15 CSN365 CAN → KUL May 15, 10:15 UTCMay 15, 13:45 UTC3h 30m
2026-05-15 CSN3056 RGN → CAN May 15, 05:25 UTCMay 15, 05:50 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-1126 page for operator, model, and routing details .

Mode-S 7813F7 frequently asked

What is Mode-S code 7813F7?
7813F7 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1126.
Where is Mode-S 7813F7 registered?
Mode-S code 7813F7 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7813F7 broadcasting right now?
No active broadcast right now. Last signal was 36m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7813F7, octal 36011767, decimal 7,869,431.
What flights does 7813F7 operate?
Mode-S 7813F7 has broadcast 20 distinct callsigns, including CSN398, CSN365, CSN3055, CSN397, CSN366.