Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 Jul 25, 03:35 UTC
Flights observed
264
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 03:35 UTC

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
CSN365 - 33 2026-07-20
CSN3055 China Southern Airlines 33 2026-07-20
CSN398 China Southern Airlines 29 2026-07-23
CSN3056 China Southern Airlines 26 2026-07-20
CSN366 - 23 2026-07-21
CSN397 China Southern Airlines 17 2026-07-23
CSN8012 China Southern Airlines 12 2026-07-24
CSN8011 China Southern Airlines 12 2026-07-24
CSN8362 China Southern Airlines 8 2026-07-25
CSN8072 China Southern Airlines 5 2026-05-23
CSN8071 China Southern Airlines 5 2026-05-22
CSN5056 - 5 2026-07-09
CSN5055 - 5 2026-07-08
CSN5042 China Southern Airlines 5 2026-07-22
CSN5041 - 5 2026-07-22
CSN3047 China Southern Airlines 5 2026-06-19
CSN8347 China Southern Airlines 4 2026-05-07
CSN5052 - 4 2026-07-10
CSN8361 China Southern Airlines 3 2026-07-24
CSN8348 China Southern Airlines 3 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSN8362 DRW → CAN Jul 25, 03:10 UTCJul 25, 03:35 UTC25m
2026-07-25 CSN8362 DRW → CAN Jul 25, 01:40 UTCJul 25, 02:10 UTC30m
2026-07-24 CSN8362 DRW → CAN Jul 24, 22:00 UTCJul 24, 22:10 UTC10m
2026-07-24 CSN8361 CAN → DRW Jul 24, 15:00 UTCJul 24, 16:40 UTC1h 40m
2026-07-24 CSN8012 MEL → CAN Jul 24, 09:10 UTCJul 24, 09:30 UTC20m
2026-07-24 CSN8011 CAN → MEL Jul 24, 04:00 UTCJul 24, 07:25 UTC3h 25m
2026-07-24 CSN3816 HFE → CAN Jul 24, 01:50 UTCJul 24, 02:00 UTC10m
2026-07-23 CSN398 MNL → CAN Jul 23, 10:55 UTCJul 23, 12:50 UTC1h 55m
2026-07-23 CSN397 CAN → MNL Jul 23, 07:25 UTCJul 23, 09:20 UTC1h 55m
2026-07-23 CSN3092 MNL → CAN Jul 23, 05:15 UTCJul 23, 05:30 UTC15m
2026-07-23 CSN3092 MNL → CAN Jul 23, 03:55 UTCJul 23, 04:25 UTC30m
2026-07-23 CSN3091 CAN → MNL Jul 23, 00:25 UTCJul 23, 02:15 UTC1h 50m
2026-07-22 CSN5042 RGN → CAN Jul 22, 12:25 UTCJul 22, 14:10 UTC1h 45m
2026-07-22 CSN5041 - Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-21 CSN366 - Jul 21, 00:10 UTCJul 21, 00:25 UTC15m
2026-07-20 CSN365 - Jul 20, 13:05 UTCJul 20, 13:40 UTC35m
2026-07-20 CSN365 - Jul 20, 10:15 UTCJul 20, 10:25 UTC10m
2026-07-20 CSN3056 RGN → CAN Jul 20, 04:50 UTCJul 20, 05:30 UTC40m
2026-07-20 CSN3055 CAN → RGN Jul 20, 01:40 UTCJul 20, 03:25 UTC1h 45m
2026-07-19 CSN366 - Jul 19, 00:15 UTCJul 19, 00:30 UTC15m
2026-07-18 CSN365 - Jul 18, 12:55 UTCJul 18, 13:30 UTC35m
2026-07-18 CSN3056 RGN → CAN Jul 18, 04:50 UTCJul 18, 06:35 UTC1h 45m
2026-07-18 CSN3055 CAN → RGN Jul 18, 02:00 UTCJul 18, 03:30 UTC1h 31m
2026-07-17 CSN3475 CAN → TFU Jul 17, 09:55 UTCJul 17, 10:05 UTC10m
2026-07-16 CSN3056 - Jul 16, 05:25 UTCJul 16, 07:00 UTC1h 35m
2026-07-16 CSN3055 - Jul 16, 02:25 UTCJul 16, 04:10 UTC1h 45m
2026-07-15 CSN5042 - Jul 15, 12:10 UTCJul 15, 13:35 UTC1h 25m
2026-07-15 CSN5041 - Jul 15, 08:30 UTCJul 15, 10:45 UTC2h 15m
2026-07-15 CSN3050 - Jul 15, 04:35 UTCJul 15, 04:45 UTC10m
2026-07-15 CSN3049 - Jul 15, 01:25 UTCJul 15, 02:20 UTC55m
2026-07-14 CSN366 - Jul 14, 00:25 UTCJul 14, 00:45 UTC20m
2026-07-13 CSN365 - Jul 13, 12:55 UTCJul 13, 13:30 UTC35m
2026-07-13 CSN365 - Jul 13, 10:10 UTCJul 13, 10:20 UTC10m
2026-07-13 CSN3056 - Jul 13, 04:50 UTCJul 13, 06:30 UTC1h 40m
2026-07-13 CSN3055 - Jul 13, 01:50 UTCJul 13, 03:30 UTC1h 40m
2026-07-12 CSN366 - Jul 12, 00:10 UTCJul 12, 00:25 UTC15m
2026-07-11 CSN365 - Jul 11, 10:10 UTCJul 11, 13:30 UTC3h 20m
2026-07-11 CSN3056 - Jul 11, 05:01 UTCJul 11, 06:40 UTC1h 40m
2026-07-11 CSN3055 - Jul 11, 01:10 UTCJul 11, 03:45 UTC2h 35m
2026-07-10 CSN5052 - Jul 10, 21:15 UTCJul 10, 21:45 UTC30m
2026-07-10 CSN5052 - Jul 10, 19:50 UTCJul 10, 20:20 UTC30m
2026-07-10 CSN5051 ZGN → MNL Jul 10, 16:40 UTCJul 10, 18:25 UTC1h 45m
2026-07-09 CSN5056 - Jul 9, 08:35 UTCJul 9, 09:15 UTC40m
2026-07-08 CSN5055 - Jul 8, 18:05 UTCJul 9, 07:45 UTC13h 40m
2026-07-08 CSN5042 - Jul 8, 11:40 UTCJul 8, 12:20 UTC40m
2026-07-08 CSN5041 - Jul 8, 08:20 UTCJul 8, 10:25 UTC2h 5m
2026-07-08 CSN3050 - Jul 8, 04:35 UTCJul 8, 04:50 UTC15m
2026-07-08 CSN3049 - Jul 8, 01:35 UTCJul 8, 03:00 UTC1h 25m
2026-07-07 CSN5056 - Jul 7, 08:25 UTCJul 7, 08:45 UTC20m
2026-07-06 CSN5055 - Jul 6, 18:00 UTCJul 7, 07:40 UTC13h 40m

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 Jul 25, 03:35 UTC.
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 CSN365, CSN3055, CSN398, CSN3056, CSN366.