Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7813B5

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1090 · AIRBUS A-321neo

Hex
7813B5
Octal
36011665
Decimal
7,869,365
Country
CN
Tail
B-1090
Type
A21N
Broadcasting now · callsign CSN351 · 20,025 ft
Flights observed
134
Distinct callsigns
20
Country
CN
Last broadcast
2h ago

Current position

7813B5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7813B5 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 - 16 2026-07-08
CSN357 - 12 2026-07-12
CSN3039 - 11 2026-07-08
CSN358 - 10 2026-07-12
CSN352 - 9 2026-07-05
CSN8100 - 6 2026-06-28
CSN8099 - 6 2026-06-28
CSN364 - 6 2026-07-09
CSN363 - 6 2026-07-09
CSN351 - 6 2026-07-14
CSN3061 - 5 2026-07-07
CSN3407 - 4 2026-07-11
CSN340 - 4 2026-07-11
CSN339 - 4 2026-07-10
CSN3062 - 4 2026-07-07
CSN5015 China Southern Airlines 3 2026-04-29
CSN8484 - 2 2026-07-11
CSN5016 China Southern Airlines 2 2026-04-29
CSN362 - 2 2026-07-02
CSN361 - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSN351 - Jul 14, 12:25 UTCJul 14, 12:35 UTC10m
2026-07-14 CSN8988 - Jul 14, 02:10 UTCJul 14, 07:10 UTC5h 0m
2026-07-12 CSN358 - Jul 12, 04:30 UTCJul 12, 04:40 UTC10m
2026-07-12 CSN357 - Jul 12, 02:50 UTCJul 12, 03:01 UTC10m
2026-07-11 CSN8484 - Jul 11, 19:30 UTCJul 11, 19:50 UTC20m
2026-07-11 CSN8484 - Jul 11, 17:25 UTCJul 11, 17:55 UTC30m
2026-07-11 CSN8483 - Jul 11, 15:45 UTCJul 11, 16:05 UTC20m
2026-07-11 CSN3407 - Jul 11, 06:10 UTCJul 11, 06:45 UTC35m
2026-07-11 CSN340 - Jul 11, 00:55 UTCJul 11, 01:40 UTC45m
2026-07-10 CSN339 - Jul 10, 05:00 UTCJul 10, 12:30 UTC7h 30m
2026-07-10 CSN357 ZGN → BKK Jul 10, 01:25 UTCJul 10, 03:35 UTC2h 10m
2026-07-09 CSN364 - Jul 9, 14:10 UTCJul 9, 14:35 UTC25m
2026-07-09 CSN363 - Jul 9, 12:05 UTCJul 9, 12:35 UTC30m
2026-07-09 CSN358 - Jul 9, 04:50 UTCJul 9, 05:20 UTC30m
2026-07-09 CSN357 - Jul 9, 00:55 UTCJul 9, 03:10 UTC2h 15m
2026-07-08 CSN3040 - Jul 8, 14:45 UTCJul 8, 15:00 UTC15m
2026-07-08 CSN3040 - Jul 8, 11:35 UTCJul 8, 12:05 UTC30m
2026-07-08 CSN3039 - Jul 8, 09:35 UTCJul 8, 10:10 UTC35m
2026-07-08 CSN3039 - Jul 8, 06:40 UTCJul 8, 06:50 UTC10m
2026-07-07 CSN3062 - Jul 7, 07:50 UTCJul 7, 08:40 UTC50m
2026-07-07 CSN3061 - Jul 7, 05:25 UTCJul 7, 06:10 UTC45m
2026-07-06 CSN3062 - Jul 6, 07:50 UTCJul 6, 08:40 UTC50m
2026-07-06 CSN3061 - Jul 6, 05:45 UTCJul 6, 06:25 UTC40m
2026-07-06 CSN3061 - Jul 6, 03:25 UTCJul 6, 03:35 UTC10m
2026-07-05 CSN352 - Jul 5, 03:30 UTCJul 5, 03:40 UTC10m
2026-07-05 CSN352 - Jul 5, 00:20 UTCJul 5, 00:45 UTC25m
2026-07-04 CSN351 - Jul 4, 17:20 UTCJul 4, 17:35 UTC15m
2026-07-04 CSN351 - Jul 4, 14:30 UTCJul 4, 14:40 UTC10m
2026-07-04 CSN8987 - Jul 4, 01:50 UTCJul 4, 07:10 UTC5h 20m
2026-07-02 CSN3044 - Jul 2, 14:40 UTCJul 2, 15:00 UTC20m
2026-07-02 CSN3044 - Jul 2, 11:25 UTCJul 2, 11:50 UTC25m
2026-07-02 CSN3043 - Jul 2, 06:30 UTCJul 2, 09:50 UTC3h 20m
2026-07-02 CSN362 - Jul 2, 03:05 UTCJul 2, 03:20 UTC15m
2026-06-30 CSN3144 - Jun 30, 14:20 UTCJul 1, 08:05 UTC17h 45m
2026-06-29 CSN3407 - Jun 29, 06:44 UTCJun 29, 06:59 UTC15m
2026-06-29 CSN352 - Jun 29, 03:54 UTCJun 29, 04:09 UTC15m
2026-06-29 CSN352 - Jun 29, 00:49 UTCJun 29, 01:14 UTC25m
2026-06-28 CSN351 - Jun 28, 11:45 UTCJun 28, 14:59 UTC3h 15m
2026-06-28 CSN8100 - Jun 28, 08:34 UTCJun 28, 08:50 UTC15m
2026-06-28 CSN8100 - Jun 28, 07:14 UTCJun 28, 07:40 UTC25m
2026-06-28 CSN8099 - Jun 28, 05:04 UTCJun 28, 05:29 UTC25m
2026-06-28 CSN8099 - Jun 28, 03:55 UTCJun 28, 04:10 UTC15m
2026-06-26 CSN352 - Jun 26, 03:24 UTCJun 26, 03:45 UTC20m
2026-06-26 CSN352 - Jun 26, 00:15 UTCJun 26, 00:39 UTC25m
2026-06-25 CSN358 - Jun 25, 06:14 UTCJun 25, 14:09 UTC7h 55m
2026-06-25 CSN357 - Jun 25, 02:39 UTCJun 25, 04:45 UTC2h 5m
2026-06-23 CSN3407 - Jun 23, 06:19 UTCJun 23, 06:59 UTC40m
2026-06-23 CSN340 - Jun 23, 00:54 UTCJun 23, 01:20 UTC25m
2026-06-22 CSN339 - Jun 22, 11:39 UTCJun 22, 12:30 UTC50m
2026-06-22 CSN358 - Jun 22, 04:30 UTCJun 22, 06:10 UTC1h 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-1090 page for operator, model, and routing details .

Mode-S 7813B5 frequently asked

What is Mode-S code 7813B5?
7813B5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1090.
Where is Mode-S 7813B5 registered?
Mode-S code 7813B5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7813B5 broadcasting right now?
Yes. Mode-S 7813B5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7813B5, octal 36011665, decimal 7,869,365.
What flights does 7813B5 operate?
Mode-S 7813B5 has broadcast 20 distinct callsigns, including CSN3040, CSN357, CSN3039, CSN358, CSN352.