Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781BE6

ICAO 24-bit transponder address · allocated to China

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

Hex
781BE6
Octal
36015746
Decimal
7,871,462
Country
CN
Tail
B-324K
Type
A21N
No current signal · last broadcast 3d ago
Flights observed
134
Distinct callsigns
17
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 781BE6.

Country allocation

The ICAO 24-bit address 781BE6 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
CSC3909 - 29 2026-07-03
CSC3961 - 21 2026-06-30
CSC3910 - 19 2026-07-03
CSC3962 - 13 2026-07-01
CSC6788 - 9 2026-06-21
CSC3985 Sichuan Airlines 9 2026-06-26
CSC3924 - 8 2026-06-27
CSC3995 Sichuan Airlines 6 2026-05-28
CSC3996 Sichuan Airlines 4 2026-05-22
CSC3986 - 4 2026-07-10
CSC3923 - 4 2026-06-26
CSC6787 Sichuan Airlines 2 2026-05-06
CSC3993 Sichuan Airlines 2 2026-05-25
CSC6461 - 1 2026-07-09
CSC3994 Sichuan Airlines 1 2026-05-25
CSC3938 - 1 2026-07-01
CSC3937 Sichuan Airlines 1 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 CSC3986 - Jul 10, 09:10 UTCJul 10, 20:20 UTC11h 10m
2026-07-09 CSC6461 - Jul 9, 08:10 UTCJul 9, 08:30 UTC20m
2026-07-03 CSC3910 - Jul 3, 09:25 UTCJul 3, 12:30 UTC3h 5m
2026-07-03 CSC3909 - Jul 3, 05:05 UTCJul 3, 07:25 UTC2h 20m
2026-07-01 CSC3938 - Jul 1, 19:45 UTCJul 1, 19:55 UTC10m
2026-07-01 CSC3937 TFU → BKK Jul 1, 16:45 UTCJul 1, 17:00 UTC15m
2026-07-01 CSC3962 - Jul 1, 08:00 UTCJul 1, 15:50 UTC7h 50m
2026-06-30 CSC3961 - Jun 30, 18:25 UTCJul 1, 05:50 UTC11h 25m
2026-06-30 CSC3962 - Jun 30, 07:55 UTCJun 30, 17:00 UTC9h 5m
2026-06-29 CSC3961 - Jun 29, 11:35 UTCJun 30, 05:50 UTC18h 16m
2026-06-29 CSC3910 - Jun 29, 09:34 UTCJun 30, 05:50 UTC20h 16m
2026-06-29 CSC3910 - Jun 29, 09:14 UTCJun 30, 05:50 UTC20h 36m
2026-06-28 CSC3909 - Jun 28, 18:25 UTCJun 29, 07:15 UTC12h 50m
2026-06-28 CSC3962 - Jun 28, 07:50 UTCJun 28, 17:10 UTC9h 20m
2026-06-27 CSC3924 - Jun 27, 11:35 UTCJun 28, 06:00 UTC18h 25m
2026-06-27 CSC3924 - Jun 27, 10:54 UTCJun 28, 06:00 UTC19h 5m
2026-06-26 CSC3924 - Jun 26, 23:39 UTCJun 27, 20:39 UTC21h 0m
2026-06-26 CSC3923 - Jun 26, 13:34 UTCJun 27, 13:30 UTC23h 55m
2026-06-26 CSC3985 TFU → DPS Jun 26, 13:24 UTCJun 27, 11:30 UTC22h 5m
2026-06-24 CSC3985 TFU → DPS Jun 24, 09:00 UTCJun 24, 19:59 UTC11h 0m
2026-06-21 CSC3986 DPS → TFU Jun 21, 09:00 UTCJun 21, 20:09 UTC11h 10m
2026-06-21 CSC6788 - Jun 21, 04:10 UTCJun 21, 04:20 UTC10m
2026-06-18 CSC3910 - Jun 18, 09:15 UTCJun 18, 11:15 UTC2h 0m
2026-06-17 CSC3909 - Jun 17, 20:00 UTCJun 18, 07:10 UTC11h 10m
2026-06-17 CSC3909 - Jun 17, 09:35 UTCJun 18, 07:10 UTC21h 35m
2026-06-17 CSC3909 - Jun 17, 09:00 UTCJun 18, 07:10 UTC22h 10m
2026-06-16 CSC3985 TFU → DPS Jun 16, 11:35 UTCJun 17, 09:40 UTC22h 6m
2026-06-16 CSC3910 - Jun 16, 09:34 UTCJun 17, 09:30 UTC23h 56m
2026-06-16 CSC3910 - Jun 16, 09:25 UTCJun 16, 12:05 UTC2h 40m
2026-06-15 CSC3909 - Jun 15, 20:15 UTCJun 16, 06:50 UTC10h 35m
2026-06-15 CSC3909 - Jun 15, 09:40 UTCJun 16, 06:50 UTC21h 10m
2026-06-14 CSC3986 DPS → TFU Jun 14, 09:20 UTCJun 14, 20:05 UTC10h 45m
2026-06-14 CSC6788 ZUH → TFU Jun 14, 04:15 UTCJun 14, 04:25 UTC10m
2026-06-13 CSC3924 MLE → TFU Jun 13, 12:05 UTCJun 13, 20:10 UTC8h 5m
2026-06-13 CSC6788 ZUH → TFU Jun 13, 04:25 UTCJun 13, 04:40 UTC15m
2026-06-12 CSC3985 TFU → DPS Jun 12, 08:55 UTCJun 12, 20:10 UTC11h 15m
2026-06-11 CSC3910 SIN → TFU Jun 11, 09:15 UTCJun 11, 11:10 UTC1h 55m
2026-06-10 CSC3909 TFU → SIN Jun 10, 18:40 UTCJun 11, 07:20 UTC12h 40m
2026-06-10 CSC3962 NRT → TFU Jun 10, 08:00 UTCJun 10, 17:20 UTC9h 20m
2026-06-10 CSC3961 TFU → NRT Jun 10, 04:05 UTCJun 10, 05:35 UTC1h 30m
2026-06-09 CSC3961 TFU → NRT Jun 9, 09:35 UTCJun 10, 05:35 UTC20h 0m
2026-06-09 CSC3961 TFU → NRT Jun 9, 09:25 UTCJun 10, 05:35 UTC20h 10m
2026-06-09 CSC3909 TFU → SIN Jun 9, 04:55 UTCJun 9, 07:10 UTC2h 15m
2026-06-08 CSC3909 TFU → SIN Jun 8, 09:05 UTCJun 9, 07:10 UTC22h 5m
2026-06-07 CSC3985 TFU → DPS Jun 7, 11:35 UTCJun 8, 09:25 UTC21h 50m
2026-06-07 CSC3910 SIN → TFU Jun 7, 09:35 UTCJun 8, 09:25 UTC23h 50m
2026-06-07 CSC3910 SIN → TFU Jun 7, 09:15 UTCJun 7, 11:45 UTC2h 30m
2026-06-06 CSC3909 TFU → SIN Jun 6, 11:35 UTCJun 7, 06:50 UTC19h 15m
2026-06-06 CSC3909 TFU → SIN Jun 6, 09:34 UTCJun 7, 06:50 UTC21h 15m
2026-06-06 CSC3910 SIN → TFU Jun 6, 09:09 UTCJun 7, 06:50 UTC21h 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-324K page for operator, model, and routing details .

Mode-S 781BE6 frequently asked

What is Mode-S code 781BE6?
781BE6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-324K.
Where is Mode-S 781BE6 registered?
Mode-S code 781BE6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781BE6 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 781BE6, octal 36015746, decimal 7,871,462.
What flights does 781BE6 operate?
Mode-S 781BE6 has broadcast 17 distinct callsigns, including CSC3909, CSC3961, CSC3910, CSC3962, CSC6788.