Apparatus

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sensors Mode-S transponder

7815D2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-305E · AIRBUS A-320neo

Hex
7815D2
Octal
36012722
Decimal
7,869,906
Country
CN
Tail
B-305E
Type
A20N
No current signal · last broadcast 3d ago
Flights observed
63
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 7815D2.

Country allocation

The ICAO 24-bit address 7815D2 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
CSN6347 China Southern Airlines 7 2026-05-19
CSN652 China Southern Airlines 5 2026-05-08
CSN6403 China Southern Airlines 4 2026-05-28
CSN6388 China Southern Airlines 4 2026-05-30
CSN6387 China Southern Airlines 3 2026-05-30
CSN8598 China Southern Airlines 2 2026-05-09
CSN8597 China Southern Airlines 2 2026-05-09
CSN8023 China Southern Airlines 2 2026-05-23
CSN6529 China Southern Airlines 2 2026-05-17
CSN651 China Southern Airlines 2 2026-04-26
CSN6315 China Southern Airlines 2 2026-05-26
CSN6303 China Southern Airlines 2 2026-05-08
CSN6254 China Southern Airlines 2 2026-05-09
CSN6253 China Southern Airlines 2 2026-05-09
CSN3955 China Southern Airlines 2 2026-05-09
CSN3621 China Southern Airlines 2 2026-05-11
CSN8611 China Southern Airlines 1 2026-05-11
CSN8558 China Southern Airlines 1 2026-04-25
CSN8469 China Southern Airlines 1 2026-05-10
CSN8315 China Southern Airlines 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSN6388 ZUH → SHE May 30, 12:20 UTCMay 30, 12:40 UTC20m
2026-05-30 CSN6387 SHE → ZUH May 30, 07:40 UTCMay 30, 07:50 UTC10m
2026-05-28 CSN6403 SHE → CKG May 28, 12:35 UTCMay 29, 07:25 UTC18h 50m
2026-05-28 CSN6388 ZUH → SHE May 28, 12:15 UTCMay 29, 07:25 UTC19h 10m
2026-05-28 CSN6387 SHE → ZUH May 28, 07:50 UTCMay 28, 08:10 UTC20m
2026-05-27 CSN6387 SHE → ZUH May 27, 09:50 UTCMay 28, 08:10 UTC22h 20m
2026-05-26 CSN6315 SHE → CAN May 26, 02:29 UTCMay 26, 06:25 UTC3h 55m
2026-05-23 CSN8024 BKK → CAN May 23, 11:10 UTCMay 23, 11:50 UTC40m
2026-05-23 CSN8023 CAN → BKK May 23, 08:50 UTCMay 23, 09:25 UTC35m
2026-05-23 CSN8023 CAN → BKK May 23, 07:20 UTCMay 23, 07:30 UTC10m
2026-05-22 CSN8315 CAN → HAN May 22, 06:10 UTCMay 22, 06:20 UTC10m
2026-05-20 CSN6315 SHE → CAN May 20, 11:25 UTCMay 21, 06:25 UTC19h 0m
2026-05-20 CSN6339 SHE → CAN May 20, 01:10 UTCMay 20, 11:45 UTC10h 36m
2026-05-19 - - May 19, 11:45 UTCMay 20, 01:10 UTC13h 25m
2026-05-19 CSN6347 SHE → CAN May 19, 04:40 UTCMay 20, 01:10 UTC20h 30m
2026-05-18 CSN6347 SHE → CAN May 18, 15:40 UTCMay 19, 11:50 UTC20h 9m
2026-05-17 CSN6529 SHE → NGB May 17, 15:55 UTCMay 18, 08:30 UTC16h 35m
2026-05-16 CSN6529 SHE → NGB May 16, 01:00 UTCMay 16, 07:51 UTC6h 51m
2026-05-12 CSN6304 SZX → SHE May 12, 13:15 UTCMay 12, 13:25 UTC10m
2026-05-12 CSN5537 - May 12, 04:45 UTCMay 12, 04:55 UTC10m
2026-05-11 CSN8611 SZX → JHG May 11, 10:45 UTCMay 11, 11:00 UTC15m
2026-05-11 CSN3621 SZX → TFU May 11, 01:30 UTCMay 11, 01:45 UTC15m
2026-05-10 CSN8469 SZX → HAN May 10, 06:59 UTCMay 10, 07:19 UTC20m
2026-05-09 CSN8165 - May 9, 23:00 UTCMay 9, 23:09 UTC10m
2026-05-09 CSN3956 HAK → SZX May 9, 16:05 UTCMay 9, 16:20 UTC15m
2026-05-09 CSN3955 SZX → HAK May 9, 13:05 UTCMay 9, 13:25 UTC20m
2026-05-09 CSN8598 HGH → SZX May 9, 10:20 UTCMay 9, 10:40 UTC20m
2026-05-09 CSN8597 SZX → HGH May 9, 05:25 UTCMay 9, 05:35 UTC10m
2026-05-09 CSN6254 HAK → SZX May 9, 03:15 UTCMay 9, 03:25 UTC10m
2026-05-09 CSN6253 SZX → HAK May 9, 00:20 UTCMay 9, 00:35 UTC15m
2026-05-08 CSN6303 SHE → SZX May 8, 10:59 UTCMay 8, 11:09 UTC10m
2026-05-08 CSN652 ICN → SHE May 8, 02:55 UTCMay 8, 08:34 UTC5h 40m
2026-05-07 CSN6347 SHE → CAN May 7, 01:50 UTCMay 7, 11:35 UTC9h 45m
2026-05-06 CSN6347 SHE → CAN May 6, 06:35 UTCMay 7, 05:05 UTC22h 29m
2026-05-05 CSN6348 CAN → SHE May 5, 11:35 UTCMay 6, 06:35 UTC19h 0m
2026-05-05 CSN6347 SHE → CAN May 5, 04:30 UTCMay 5, 11:45 UTC7h 15m
2026-05-04 CSN6347 SHE → CAN May 4, 11:45 UTCMay 5, 04:55 UTC17h 11m
2026-05-04 CSN6347 SHE → CAN May 4, 08:15 UTCMay 5, 04:55 UTC20h 41m
2026-05-03 CSN5366 KMG → SHE May 3, 09:45 UTCMay 4, 01:00 UTC15h 15m
2026-05-01 CSN6388 ZUH → SHE May 1, 14:30 UTCMay 2, 04:00 UTC13h 31m
2026-05-01 CSN666 PUS → SHE May 1, 02:30 UTCMay 1, 07:50 UTC5h 20m
2026-04-30 CSN665 SHE → PUS Apr 30, 15:50 UTCMay 1, 00:55 UTC9h 5m
2026-04-30 CSN8598 HGH → SZX Apr 30, 10:25 UTCApr 30, 10:40 UTC15m
2026-04-30 CSN8597 SZX → HGH Apr 30, 05:20 UTCApr 30, 05:30 UTC10m
2026-04-30 CSN6254 HAK → SZX Apr 30, 03:05 UTCApr 30, 03:20 UTC15m
2026-04-30 CSN6253 SZX → HAK Apr 30, 00:30 UTCApr 30, 00:45 UTC15m
2026-04-29 CSN6497 SZX → SYX Apr 29, 12:40 UTCApr 29, 12:50 UTC10m
2026-04-29 CSN3621 SZX → TFU Apr 29, 01:30 UTCApr 29, 01:50 UTC20m
2026-04-28 CSN3955 SZX → HAK Apr 28, 13:15 UTCApr 28, 13:30 UTC15m
2026-04-27 CSN6303 SHE → SZX Apr 27, 16:00 UTCApr 28, 08:50 UTC16h 50m

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-305E page for operator, model, and routing details .

Mode-S 7815D2 frequently asked

What is Mode-S code 7815D2?
7815D2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-305E.
Where is Mode-S 7815D2 registered?
Mode-S code 7815D2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815D2 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815D2, octal 36012722, decimal 7,869,906.
What flights does 7815D2 operate?
Mode-S 7815D2 has broadcast 20 distinct callsigns, including CSN6347, CSN652, CSN6403, CSN6388, CSN6387.