Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781FA6

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32ET · AIRBUS A-320neo

Hex
781FA6
Octal
36017646
Decimal
7,872,422
Country
CN
Tail
B-32ET
Type
A20N
No current signal · last broadcast 8h ago
Flights observed
77
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 781FA6.

Country allocation

The ICAO 24-bit address 781FA6 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
CSN8023 - 13 2026-07-12
CSN8024 - 11 2026-07-12
CSN3081 - 7 2026-07-09
CSN3082 - 6 2026-07-09
CSN6063 - 5 2026-07-07
CSN8177 China Southern Airlines 4 2026-06-03
CSN3497 China Southern Airlines 4 2026-07-03
CSN8315 China Southern Airlines 3 2026-04-28
CSN8313 China Southern Airlines 3 2026-05-06
CSN323 China Southern Airlines 3 2026-04-21
CSN6331 - 2 2026-07-14
CSN8212 China Southern Airlines 1 2026-05-04
CSN8178 China Southern Airlines 1 2026-06-03
CSN6487 China Southern Airlines 1 2026-05-24
CSN6307 - 1 2026-06-22
CSN6064 China Southern Airlines 1 2026-04-17
CSN5840 China Southern Airlines 1 2026-04-26
CSN5096 China Southern Airlines 1 2026-05-13
CSN5095 China Southern Airlines 1 2026-05-13
CSN3954 - 1 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSN6331 - Jul 14, 04:40 UTCJul 14, 13:05 UTC8h 25m
2026-07-12 CSN8024 - Jul 12, 11:05 UTCJul 12, 11:15 UTC10m
2026-07-12 CSN8023 - Jul 12, 09:15 UTCJul 12, 09:30 UTC15m
2026-07-11 CSN6331 - Jul 11, 03:55 UTCJul 11, 13:35 UTC9h 40m
2026-07-09 CSN3082 - Jul 9, 08:55 UTCJul 9, 09:25 UTC30m
2026-07-09 CSN3081 - Jul 9, 06:45 UTCJul 9, 07:20 UTC35m
2026-07-09 CSN3081 - Jul 9, 05:00 UTCJul 9, 05:10 UTC10m
2026-07-08 CSN3082 - Jul 8, 10:05 UTCJul 8, 11:40 UTC1h 35m
2026-07-08 CSN3081 - Jul 8, 06:40 UTCJul 8, 08:45 UTC2h 5m
2026-07-07 CSN6063 - Jul 7, 05:50 UTCJul 7, 11:15 UTC5h 25m
2026-07-05 CSN3511 - Jul 5, 06:15 UTCJul 5, 06:25 UTC10m
2026-07-04 CSN324 - Jul 4, 14:40 UTCJul 5, 01:50 UTC11h 10m
2026-07-03 CSN3497 CAN → KMG Jul 3, 23:40 UTCJul 4, 00:25 UTC45m
2026-07-02 CSN3339 - Jul 2, 08:25 UTCJul 2, 08:40 UTC15m
2026-07-01 CSN8024 - Jul 1, 11:10 UTCJul 1, 12:40 UTC1h 30m
2026-07-01 CSN8023 - Jul 1, 09:20 UTCJul 1, 09:35 UTC15m
2026-07-01 CSN3954 - Jul 1, 05:20 UTCJul 1, 05:35 UTC15m
2026-06-30 CSN8024 - Jun 30, 11:25 UTCJun 30, 12:50 UTC1h 25m
2026-06-30 CSN8023 - Jun 30, 08:25 UTCJun 30, 09:50 UTC1h 25m
2026-06-27 CSN3497 CAN → KMG Jun 27, 12:19 UTCJun 28, 00:59 UTC12h 40m
2026-06-27 CSN3497 CAN → KMG Jun 27, 03:49 UTCJun 28, 00:59 UTC21h 10m
2026-06-22 CSN6307 - Jun 22, 03:50 UTCJun 22, 07:40 UTC3h 50m
2026-06-03 CSN8178 HAN → CAN Jun 3, 14:05 UTCJun 3, 14:30 UTC25m
2026-06-03 CSN8177 CAN → HAN Jun 3, 10:20 UTCJun 3, 11:20 UTC1h 0m
2026-06-02 CSN8177 CAN → HAN Jun 2, 13:35 UTCJun 3, 11:20 UTC21h 45m
2026-06-02 CSN8177 CAN → HAN Jun 2, 13:15 UTCJun 3, 11:20 UTC22h 5m
2026-06-02 CSN8177 CAN → HAN Jun 2, 09:55 UTCJun 2, 10:55 UTC1h 0m
2026-05-27 CSN8024 BKK → CAN May 27, 11:05 UTCMay 27, 12:40 UTC1h 35m
2026-05-27 CSN8023 CAN → BKK May 27, 08:35 UTCMay 27, 09:20 UTC45m
2026-05-24 CSN6487 CAN → WNH May 24, 01:25 UTCMay 24, 10:15 UTC8h 50m
2026-05-23 CSN3385 CAN → DYG May 23, 07:50 UTCMay 23, 08:00 UTC10m
2026-05-18 CSN3082 BKK → CAN May 18, 08:55 UTCMay 18, 09:25 UTC30m
2026-05-18 CSN3081 CAN → BKK May 18, 06:20 UTCMay 18, 07:00 UTC40m
2026-05-17 CSN8024 BKK → CAN May 17, 11:15 UTCMay 17, 11:40 UTC25m
2026-05-17 CSN8023 CAN → BKK May 17, 08:50 UTCMay 17, 09:30 UTC40m
2026-05-16 CSN3082 BKK → CAN May 16, 08:55 UTCMay 16, 09:35 UTC40m
2026-05-16 CSN3081 CAN → BKK May 16, 06:16 UTCMay 16, 07:01 UTC45m
2026-05-14 CSN3082 BKK → CAN May 14, 09:15 UTCMay 14, 10:00 UTC45m
2026-05-14 CSN3081 CAN → BKK May 14, 07:05 UTCMay 14, 07:50 UTC45m
2026-05-13 CSN5096 BKK → CAN May 13, 08:10 UTCMay 13, 08:55 UTC45m
2026-05-13 CSN5095 CAN → BKK May 13, 04:05 UTCMay 13, 06:20 UTC2h 15m
2026-05-11 CSN8024 BKK → CAN May 11, 11:15 UTCMay 11, 11:50 UTC35m
2026-05-11 CSN8023 CAN → BKK May 11, 07:10 UTCMay 11, 09:30 UTC2h 20m
2026-05-09 CSN8024 BKK → CAN May 9, 11:15 UTCMay 9, 11:55 UTC40m
2026-05-09 CSN8023 CAN → BKK May 9, 07:20 UTCMay 9, 09:40 UTC2h 20m
2026-05-06 CSN8313 CAN → PNH May 6, 01:20 UTCMay 6, 01:30 UTC10m
2026-05-04 CSN8212 PVG → CAN May 4, 16:20 UTCMay 4, 16:30 UTC10m
2026-05-04 CSN8313 CAN → PNH May 4, 01:10 UTCMay 4, 01:20 UTC10m
2026-05-03 CSN6063 CAN → HKT May 3, 05:25 UTCMay 3, 11:00 UTC5h 35m
2026-05-02 CSN371 PEK → CAN May 2, 14:50 UTCMay 2, 15:00 UTC10m

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-32ET page for operator, model, and routing details .

Mode-S 781FA6 frequently asked

What is Mode-S code 781FA6?
781FA6 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32ET.
Where is Mode-S 781FA6 registered?
Mode-S code 781FA6 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FA6 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FA6, octal 36017646, decimal 7,872,422.
What flights does 781FA6 operate?
Mode-S 781FA6 has broadcast 20 distinct callsigns, including CSN8023, CSN8024, CSN3081, CSN3082, CSN6063.