Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781BE7

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-324L · AIRBUS A-321neo

Hex
781BE7
Octal
36015747
Decimal
7,871,463
Country
CN
Tail
B-324L
Type
A21N
No current signal · last broadcast 6d ago
Flights observed
65
Distinct callsigns
17
Country
CN
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 781BE7.

Country allocation

The ICAO 24-bit address 781BE7 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 17 distinct

Callsign Airline Flights Last seen
CSC8764 Sichuan Airlines 12 2026-06-03
CSC3909 - 11 2026-07-08
CSC3995 - 9 2026-07-12
CSC3993 - 6 2026-07-11
CSC3910 - 6 2026-07-09
CSC3994 - 5 2026-06-20
CSC3996 - 2 2026-07-12
CSC3938 - 2 2026-06-29
CSC3937 Sichuan Airlines 2 2026-06-29
CSC3122 Sichuan Airlines 2 2026-05-18
CSC3121 Sichuan Airlines 2 2026-05-18
CSC8760 Sichuan Airlines 1 2026-05-31
CSC8702 Sichuan Airlines 1 2026-05-08
CSC8701 Sichuan Airlines 1 2026-05-08
CSC6872 Sichuan Airlines 1 2026-05-27
CSC3906 Sichuan Airlines 1 2026-06-19
CSC3905 Sichuan Airlines 1 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 CSC3996 - Jul 12, 07:35 UTCJul 12, 10:30 UTC2h 55m
2026-07-12 CSC3995 - Jul 12, 05:30 UTCJul 12, 05:55 UTC25m
2026-07-11 CSC3995 - Jul 11, 16:25 UTCJul 12, 04:35 UTC12h 10m
2026-07-11 CSC3993 - Jul 11, 14:20 UTCJul 11, 14:50 UTC30m
2026-07-11 CSC3993 - Jul 11, 11:50 UTCJul 11, 13:25 UTC1h 35m
2026-07-10 CSC3996 - Jul 10, 07:45 UTCJul 10, 10:35 UTC2h 50m
2026-07-10 CSC3995 - Jul 10, 05:50 UTCJul 10, 06:15 UTC25m
2026-07-09 CSC3910 - Jul 9, 09:50 UTCJul 10, 05:00 UTC19h 10m
2026-07-09 CSC3910 - Jul 9, 09:20 UTCJul 10, 05:00 UTC19h 40m
2026-07-08 CSC3909 - Jul 8, 10:05 UTCJul 9, 07:25 UTC21h 20m
2026-07-08 CSC3909 - Jul 8, 07:50 UTCJul 9, 07:25 UTC23h 35m
2026-07-08 CSC3909 - Jul 8, 07:40 UTCJul 9, 05:45 UTC22h 5m
2026-07-08 CSC3995 - Jul 8, 05:40 UTCJul 8, 06:10 UTC30m
2026-07-08 CSC3995 - Jul 8, 03:05 UTCJul 8, 04:45 UTC1h 40m
2026-07-05 CSC3910 - Jul 5, 09:10 UTCJul 5, 12:15 UTC3h 5m
2026-07-05 CSC3909 - Jul 5, 04:20 UTCJul 5, 07:10 UTC2h 50m
2026-07-04 CSC3909 - Jul 4, 07:50 UTCJul 5, 07:10 UTC23h 20m
2026-07-04 CSC3909 - Jul 4, 07:40 UTCJul 5, 05:40 UTC22h 0m
2026-07-04 CSC3995 - Jul 4, 05:55 UTCJul 4, 06:05 UTC10m
2026-07-04 CSC3995 - Jul 4, 03:15 UTCJul 4, 04:55 UTC1h 40m
2026-07-02 CSC3910 - Jul 2, 09:30 UTCJul 2, 12:45 UTC3h 15m
2026-07-02 CSC3909 - Jul 2, 04:20 UTCJul 2, 07:30 UTC3h 10m
2026-07-01 CSC3909 - Jul 1, 08:55 UTCJul 2, 07:30 UTC22h 35m
2026-07-01 CSC3909 - Jul 1, 07:25 UTCJul 2, 05:45 UTC22h 20m
2026-07-01 CSC3995 - Jul 1, 05:35 UTCJul 1, 06:00 UTC25m
2026-07-01 CSC3995 - Jul 1, 03:00 UTCJul 1, 04:30 UTC1h 30m
2026-06-29 CSC3938 - Jun 29, 18:30 UTCJun 29, 19:44 UTC1h 15m
2026-06-29 CSC3937 TFU → BKK Jun 29, 15:39 UTCJun 29, 16:59 UTC1h 20m
2026-06-27 CSC3910 - Jun 27, 09:19 UTCJun 27, 09:44 UTC25m
2026-06-27 CSC3909 - Jun 27, 04:59 UTCJun 27, 07:15 UTC2h 15m
2026-06-25 CSC3938 - Jun 25, 18:29 UTCJun 25, 18:55 UTC25m
2026-06-25 CSC3937 TFU → BKK Jun 25, 16:20 UTCJun 25, 16:55 UTC35m
2026-06-20 CSC3994 - Jun 20, 16:14 UTCJun 20, 18:04 UTC1h 50m
2026-06-20 CSC3993 - Jun 20, 12:39 UTCJun 20, 13:14 UTC35m
2026-06-19 CSC3906 HAN → TFU Jun 19, 02:24 UTCJun 19, 02:45 UTC20m
2026-06-18 CSC3905 TFU → HAN Jun 18, 15:30 UTCJun 18, 15:50 UTC20m
2026-06-17 CSC3910 - Jun 17, 10:15 UTCJun 17, 12:20 UTC2h 5m
2026-06-17 CSC3909 - Jun 17, 05:00 UTCJun 17, 06:55 UTC1h 55m
2026-06-03 CSC8764 ZUH → CTU Jun 3, 13:35 UTCJun 3, 13:50 UTC15m
2026-05-31 CSC8760 SYX → CTU May 31, 13:55 UTCMay 31, 14:15 UTC20m
2026-05-30 CSC3994 KUL → TFU May 30, 17:50 UTCMay 31, 11:40 UTC17h 50m
2026-05-30 CSC3994 KUL → TFU May 30, 16:35 UTCMay 30, 16:50 UTC15m
2026-05-30 CSC3993 TFU → KUL May 30, 14:30 UTCMay 30, 14:50 UTC20m
2026-05-29 CSC3994 KUL → TFU May 29, 17:50 UTCMay 30, 13:25 UTC19h 35m
2026-05-29 CSC3994 KUL → TFU May 29, 16:40 UTCMay 29, 16:55 UTC15m
2026-05-29 CSC3993 TFU → KUL May 29, 14:25 UTCMay 29, 14:45 UTC20m
2026-05-29 CSC3993 TFU → KUL May 29, 12:20 UTCMay 29, 13:10 UTC50m
2026-05-27 CSC6872 PEK → TFU May 27, 12:30 UTCMay 27, 13:00 UTC30m
2026-05-18 CSC3121 PEK → URC May 18, 13:10 UTCMay 18, 13:25 UTC15m
2026-05-18 CSC3122 URC → PEK May 18, 10:50 UTCMay 18, 11:10 UTC20m

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-324L page for operator, model, and routing details .

Mode-S 781BE7 frequently asked

What is Mode-S code 781BE7?
781BE7 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-324L.
Where is Mode-S 781BE7 registered?
Mode-S code 781BE7 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781BE7 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781BE7, octal 36015747, decimal 7,871,463.
What flights does 781BE7 operate?
Mode-S 781BE7 has broadcast 17 distinct callsigns, including CSC8764, CSC3909, CSC3995, CSC3993, CSC3910.