Apparatus

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sensors Mode-S transponder

781DF6

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32AG · AIRBUS A-350-900

Hex
781DF6
Octal
36016766
Decimal
7,871,990
Country
CN
Tail
B-32AG
Type
A359
No current signal · last broadcast 18m ago
Flights observed
152
Distinct callsigns
15
Country
CN
Last broadcast
18m ago

Last known position

Most recent position reported by Mode-S 781DF6.

Country allocation

The ICAO 24-bit address 781DF6 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 15 distinct

Callsign Airline Flights Last seen
CSC3838 - 24 2026-07-11
CSC3887 - 23 2026-06-25
CSC3815 - 17 2026-07-12
CSC3837 - 16 2026-07-10
CSC3896 - 13 2026-07-09
CSC3804 - 10 2026-07-06
CSC3895 - 9 2026-07-08
CSC3860 - 9 2026-07-14
CSC3803 - 8 2026-07-05
CSC3859 - 6 2026-07-14
CSC8893 - 5 2026-07-08
CSC3816 Sichuan Airlines 5 2026-06-21
CSC8894 - 4 2026-07-08
CSC6872 - 2 2026-07-07
3U3838 Sichuan Airlines 1 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSC3860 - Jul 14, 07:50 UTCJul 14, 11:30 UTC3h 40m
2026-07-14 CSC3859 - Jul 14, 00:55 UTCJul 14, 04:25 UTC3h 30m
2026-07-12 CSC3815 - Jul 12, 13:20 UTCJul 13, 00:20 UTC11h 0m
2026-07-11 CSC3838 - Jul 11, 17:35 UTCJul 12, 16:50 UTC23h 15m
2026-07-11 CSC3838 - Jul 11, 17:20 UTCJul 12, 13:50 UTC20h 30m
2026-07-11 CSC3838 - Jul 11, 07:30 UTCJul 11, 19:25 UTC11h 55m
2026-07-10 CSC3837 - Jul 10, 17:10 UTCJul 11, 04:40 UTC11h 31m
2026-07-09 CSC3896 - Jul 9, 11:35 UTCJul 9, 13:25 UTC1h 50m
2026-07-08 CSC3895 - Jul 8, 13:20 UTCJul 9, 04:45 UTC15h 25m
2026-07-08 CSC8893 - Jul 8, 11:40 UTCJul 8, 11:55 UTC15m
2026-07-08 CSC8894 - Jul 8, 04:00 UTCJul 8, 04:15 UTC15m
2026-07-07 CSC6872 - Jul 7, 14:50 UTCJul 7, 15:05 UTC15m
2026-07-07 CSC8893 - Jul 7, 12:00 UTCJul 7, 12:30 UTC30m
2026-07-07 CSC8894 - Jul 7, 04:10 UTCJul 7, 04:35 UTC25m
2026-07-06 CSC3804 - Jul 6, 09:40 UTCJul 6, 14:25 UTC4h 45m
2026-07-05 CSC3803 - Jul 5, 21:10 UTCJul 6, 04:50 UTC7h 40m
2026-07-03 CSC3860 - Jul 3, 17:35 UTCJul 4, 13:00 UTC19h 25m
2026-07-03 CSC3860 - Jul 3, 17:05 UTCJul 4, 13:00 UTC19h 55m
2026-07-03 CSC3860 - Jul 3, 07:35 UTCJul 3, 19:10 UTC11h 35m
2026-07-02 CSC3859 - Jul 2, 12:45 UTCJul 3, 04:50 UTC16h 5m
2026-07-02 CSC8893 - Jul 2, 10:45 UTCJul 2, 11:00 UTC15m
2026-07-01 CSC3896 - Jul 1, 11:30 UTCJul 1, 14:55 UTC3h 25m
2026-06-30 CSC3895 - Jun 30, 21:20 UTCJul 1, 04:40 UTC7h 20m
2026-06-28 CSC3896 - Jun 28, 11:55 UTCJun 28, 15:14 UTC3h 20m
2026-06-28 CSC3895 - Jun 28, 02:34 UTCJun 28, 04:50 UTC2h 15m
2026-06-25 CSC3887 - Jun 25, 23:19 UTCJun 26, 13:15 UTC13h 55m
2026-06-24 CSC3804 - Jun 24, 09:39 UTCJun 24, 15:05 UTC5h 25m
2026-06-23 CSC3803 - Jun 23, 21:10 UTCJun 24, 04:55 UTC7h 45m
2026-06-22 CSC3887 - Jun 22, 12:44 UTCJun 22, 23:20 UTC10h 35m
2026-06-21 CSC3816 LED → TFU Jun 21, 23:59 UTCJun 22, 23:20 UTC23h 20m
2026-06-21 CSC3816 LED → TFU Jun 21, 13:34 UTCJun 22, 13:10 UTC23h 35m
2026-06-21 CSC3815 - Jun 21, 13:29 UTCJun 22, 00:34 UTC11h 5m
2026-06-20 CSC3896 - Jun 20, 13:34 UTCJun 21, 13:29 UTC23h 55m
2026-06-20 CSC3896 - Jun 20, 11:34 UTCJun 20, 15:04 UTC3h 30m
2026-06-20 CSC3895 - Jun 20, 00:44 UTCJun 20, 04:39 UTC3h 55m
2026-06-18 CSC3815 TFU → LED Jun 18, 13:05 UTCJun 18, 23:55 UTC10h 50m
2026-06-17 CSC3838 - Jun 17, 17:35 UTCJun 18, 13:35 UTC20h 0m
2026-06-17 CSC3838 - Jun 17, 17:05 UTCJun 18, 13:35 UTC20h 30m
2026-06-17 CSC3838 - Jun 17, 07:05 UTCJun 17, 19:25 UTC12h 20m
2026-06-16 CSC3837 - Jun 16, 17:10 UTCJun 17, 04:20 UTC11h 11m
2026-06-15 CSC3837 - Jun 15, 23:35 UTCJun 16, 23:30 UTC23h 56m
2026-06-15 CSC3837 - Jun 15, 23:25 UTCJun 16, 18:45 UTC19h 20m
2026-06-14 CSC3816 LED → TFU Jun 14, 23:39 UTCJun 15, 13:05 UTC13h 25m
2026-06-14 CSC3815 TFU → LED Jun 14, 13:00 UTCJun 15, 00:05 UTC11h 4m
2026-06-13 CSC3838 LAX → TFU Jun 13, 17:50 UTCJun 14, 13:30 UTC19h 41m
2026-06-13 CSC3838 LAX → TFU Jun 13, 16:20 UTCJun 14, 13:30 UTC21h 11m
2026-06-13 CSC3838 LAX → TFU Jun 13, 06:30 UTCJun 13, 18:35 UTC12h 5m
2026-06-12 CSC3837 - Jun 12, 16:45 UTCJun 13, 02:45 UTC10h 0m
2026-06-11 CSC3887 TFU → SVO Jun 11, 12:40 UTCJun 11, 13:05 UTC25m
2026-06-09 CSC3815 TFU → LED Jun 9, 20:40 UTCJun 10, 13:20 UTC16h 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-32AG page for operator, model, and routing details .

Mode-S 781DF6 frequently asked

What is Mode-S code 781DF6?
781DF6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32AG.
Where is Mode-S 781DF6 registered?
Mode-S code 781DF6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781DF6 broadcasting right now?
No active broadcast right now. Last signal was 18m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781DF6, octal 36016766, decimal 7,871,990.
What flights does 781DF6 operate?
Mode-S 781DF6 has broadcast 15 distinct callsigns, including CSC3838, CSC3887, CSC3815, CSC3837, CSC3896.