Apparatus

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sensors Mode-S transponder

7815A2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-302T · AIRBUS A-321neo

Hex
7815A2
Octal
36012642
Decimal
7,869,858
Country
CN
Tail
B-302T
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
52
Distinct callsigns
13
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7815A2.

Country allocation

The ICAO 24-bit address 7815A2 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 13 distinct

Callsign Airline Flights Last seen
CSC3909 Sichuan Airlines 10 2026-05-06
CSC3993 Sichuan Airlines 8 2026-04-23
CSC3995 Sichuan Airlines 7 2026-05-05
CSC8764 Sichuan Airlines 5 2026-06-01
CSC3996 Sichuan Airlines 5 2026-05-05
CSC3994 Sichuan Airlines 5 2026-04-23
CSC3910 Sichuan Airlines 5 2026-05-06
CSC6788 Sichuan Airlines 2 2026-05-04
CSC8702 Sichuan Airlines 1 2026-05-23
CSC3960 Sichuan Airlines 1 2026-05-01
CSC3959 Sichuan Airlines 1 2026-05-01
CSC3122 Sichuan Airlines 1 2026-05-07
CSC3121 Sichuan Airlines 1 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 CSC8764 ZUH → CTU Jun 1, 13:35 UTCJun 1, 13:45 UTC10m
2026-05-23 CSC8702 SZX → CTU May 23, 02:25 UTCMay 23, 02:35 UTC9m
2026-05-19 CSC8764 ZUH → CTU May 19, 13:50 UTCMay 19, 14:00 UTC10m
2026-05-16 CSC8764 ZUH → CTU May 16, 13:46 UTCMay 16, 14:01 UTC15m
2026-05-13 CSC8764 ZUH → CTU May 13, 13:45 UTCMay 13, 14:00 UTC15m
2026-05-09 CSC8764 ZUH → CTU May 9, 13:45 UTCMay 9, 13:55 UTC10m
2026-05-07 CSC3121 PEK → URC May 7, 13:05 UTCMay 7, 13:30 UTC25m
2026-05-07 CSC3122 URC → PEK May 7, 11:00 UTCMay 7, 11:20 UTC20m
2026-05-06 CSC3910 SIN → TFU May 6, 09:35 UTCMay 6, 11:55 UTC2h 20m
2026-05-06 CSC3909 TFU → SIN May 6, 05:20 UTCMay 6, 07:20 UTC2h 0m
2026-05-05 CSC3909 TFU → SIN May 5, 08:35 UTCMay 6, 07:20 UTC22h 45m
2026-05-05 CSC3996 KUL → TFU May 5, 07:30 UTCMay 6, 06:05 UTC22h 35m
2026-05-05 CSC3995 TFU → KUL May 5, 05:40 UTCMay 5, 05:55 UTC15m
2026-05-05 CSC3995 TFU → KUL May 5, 03:55 UTCMay 5, 04:40 UTC45m
2026-05-04 CSC6788 ZUH → TFU May 4, 04:15 UTCMay 4, 04:29 UTC15m
2026-05-01 CSC3960 HKG → TFU May 1, 11:05 UTCMay 2, 03:30 UTC16h 25m
2026-05-01 CSC3959 TFU → HKG May 1, 08:35 UTCMay 1, 09:05 UTC30m
2026-04-26 CSC3996 KUL → TFU Apr 26, 08:40 UTCApr 26, 09:25 UTC45m
2026-04-26 CSC3996 KUL → TFU Apr 26, 07:30 UTCApr 26, 07:45 UTC15m
2026-04-26 CSC3995 TFU → KUL Apr 26, 05:35 UTCApr 26, 05:50 UTC15m
2026-04-25 CSC3910 SIN → TFU Apr 25, 10:35 UTCApr 26, 04:40 UTC18h 5m
2026-04-25 CSC3910 SIN → TFU Apr 25, 09:15 UTCApr 26, 04:40 UTC19h 25m
2026-04-25 CSC3909 TFU → SIN Apr 25, 05:05 UTCApr 25, 07:40 UTC2h 35m
2026-04-24 CSC3909 TFU → SIN Apr 24, 08:50 UTCApr 25, 07:40 UTC22h 50m
2026-04-24 CSC3996 KUL → TFU Apr 24, 07:40 UTCApr 24, 07:55 UTC15m
2026-04-24 CSC3995 TFU → KUL Apr 24, 05:45 UTCApr 24, 06:05 UTC20m
2026-04-23 CSC3995 TFU → KUL Apr 23, 17:55 UTCApr 24, 04:50 UTC10h 55m
2026-04-23 CSC3994 KUL → TFU Apr 23, 16:45 UTCApr 23, 17:00 UTC15m
2026-04-23 CSC3993 TFU → KUL Apr 23, 14:30 UTCApr 23, 14:45 UTC15m
2026-04-23 CSC3993 TFU → KUL Apr 23, 12:20 UTCApr 23, 13:35 UTC1h 15m
2026-04-22 CSC3910 SIN → TFU Apr 22, 09:20 UTCApr 22, 11:55 UTC2h 35m
2026-04-22 CSC3909 TFU → SIN Apr 22, 04:40 UTCApr 22, 07:40 UTC3h 0m
2026-04-21 CSC3909 TFU → SIN Apr 21, 10:35 UTCApr 22, 07:40 UTC21h 5m
2026-04-21 CSC3909 TFU → SIN Apr 21, 09:25 UTCApr 22, 07:40 UTC22h 15m
2026-04-20 CSC3909 TFU → SIN Apr 20, 16:35 UTCApr 21, 07:30 UTC14h 55m
2026-04-20 CSC3993 TFU → KUL Apr 20, 14:25 UTCApr 20, 14:45 UTC20m
2026-04-20 CSC3993 TFU → KUL Apr 20, 12:25 UTCApr 20, 13:25 UTC1h 0m
2026-04-19 CSC3910 SIN → TFU Apr 19, 09:25 UTCApr 19, 12:10 UTC2h 45m
2026-04-19 CSC3909 TFU → SIN Apr 19, 04:55 UTCApr 19, 07:45 UTC2h 50m
2026-04-18 CSC3909 TFU → SIN Apr 18, 08:55 UTCApr 19, 07:45 UTC22h 50m
2026-04-18 CSC3996 KUL → TFU Apr 18, 07:35 UTCApr 18, 07:50 UTC15m
2026-04-18 CSC3995 TFU → KUL Apr 18, 05:45 UTCApr 18, 06:05 UTC20m
2026-04-18 CSC3995 TFU → KUL Apr 18, 04:15 UTCApr 18, 04:35 UTC20m
2026-04-17 CSC3994 KUL → TFU Apr 17, 18:00 UTCApr 17, 18:20 UTC20m
2026-04-17 CSC3994 KUL → TFU Apr 17, 16:35 UTCApr 17, 16:50 UTC15m
2026-04-17 CSC3993 TFU → KUL Apr 17, 14:20 UTCApr 17, 14:50 UTC30m
2026-04-17 CSC3993 TFU → KUL Apr 17, 12:55 UTCApr 17, 13:15 UTC20m
2026-04-16 CSC3994 KUL → TFU Apr 16, 18:05 UTCApr 16, 18:25 UTC20m
2026-04-16 CSC3994 KUL → TFU Apr 16, 16:40 UTCApr 16, 16:55 UTC15m
2026-04-16 CSC3993 TFU → KUL Apr 16, 13:15 UTCApr 16, 14:50 UTC1h 35m

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-302T page for operator, model, and routing details .

Mode-S 7815A2 frequently asked

What is Mode-S code 7815A2?
7815A2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-302T.
Where is Mode-S 7815A2 registered?
Mode-S code 7815A2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815A2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815A2, octal 36012642, decimal 7,869,858.
What flights does 7815A2 operate?
Mode-S 7815A2 has broadcast 13 distinct callsigns, including CSC3909, CSC3993, CSC3995, CSC8764, CSC3996.