Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781FA5

ICAO 24-bit transponder address · allocated to China

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

Hex
781FA5
Octal
36017645
Decimal
7,872,421
Country
CN
Tail
B-32EW
Type
A359
No current signal · last broadcast 1h ago
Flights observed
91
Distinct callsigns
10
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 781FA5.

Country allocation

The ICAO 24-bit address 781FA5 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 10 distinct

Callsign Airline Flights Last seen
CSN306 China Southern Airlines 15 2026-05-28
CSN674 China Southern Airlines 14 2026-05-21
CSN673 China Southern Airlines 13 2026-05-21
CSN346 China Southern Airlines 12 2026-05-20
CSN345 China Southern Airlines 12 2026-05-19
CSN349 China Southern Airlines 7 2026-05-29
CSN305 China Southern Airlines 7 2026-05-28
CSN350 China Southern Airlines 6 2026-05-29
CSN322 China Southern Airlines 3 2026-05-30
CSN321 China Southern Airlines 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSN322 MEL → CAN May 30, 01:40 UTCMay 30, 09:05 UTC7h 25m
2026-05-29 CSN321 CAN → MEL May 29, 15:10 UTCMay 29, 23:35 UTC8h 26m
2026-05-29 CSN350 KUL → CAN May 29, 08:55 UTCMay 29, 09:05 UTC10m
2026-05-29 CSN350 KUL → CAN May 29, 06:30 UTCMay 29, 06:45 UTC15m
2026-05-29 CSN349 CAN → KUL May 29, 03:55 UTCMay 29, 04:30 UTC35m
2026-05-28 CSN306 AKL → CAN May 28, 20:10 UTCMay 28, 20:45 UTC35m
2026-05-28 CSN306 AKL → CAN May 28, 18:35 UTCMay 28, 19:25 UTC50m
2026-05-28 CSN306 AKL → CAN May 28, 09:40 UTCMay 28, 13:50 UTC4h 10m
2026-05-28 CSN305 CAN → AKL May 28, 01:05 UTCMay 28, 03:30 UTC2h 25m
2026-05-27 CSN305 CAN → AKL May 27, 17:10 UTCMay 28, 00:40 UTC7h 30m
2026-05-26 CSN322 MEL → CAN May 26, 08:54 UTCMay 26, 09:09 UTC15m
2026-05-26 CSN322 MEL → CAN May 26, 00:44 UTCMay 26, 08:04 UTC7h 20m
2026-05-25 CSN321 CAN → MEL May 25, 13:45 UTCMay 25, 22:10 UTC8h 25m
2026-05-25 CSN350 KUL → CAN May 25, 06:20 UTCMay 25, 06:35 UTC15m
2026-05-25 CSN349 CAN → KUL May 25, 03:55 UTCMay 25, 04:25 UTC30m
2026-05-24 CSN306 AKL → CAN May 24, 20:20 UTCMay 24, 20:40 UTC20m
2026-05-24 CSN306 AKL → CAN May 24, 09:40 UTCMay 24, 19:40 UTC10h 0m
2026-05-23 CSN305 CAN → AKL May 23, 17:15 UTCMay 24, 03:25 UTC10h 10m
2026-05-23 CSN349 CAN → KUL May 23, 03:55 UTCMay 23, 04:25 UTC30m
2026-05-21 CSN674 LHR → PKX May 21, 20:20 UTCMay 22, 02:40 UTC6h 20m
2026-05-21 CSN673 PKX → LHR May 21, 09:35 UTCMay 21, 16:20 UTC6h 45m
2026-05-21 CSN673 PKX → LHR May 21, 06:30 UTCMay 21, 06:40 UTC10m
2026-05-20 CSN346 AMS → PKX May 20, 04:40 UTCMay 20, 04:55 UTC15m
2026-05-19 CSN346 AMS → PKX May 19, 20:10 UTCMay 20, 02:05 UTC5h 55m
2026-05-19 CSN345 PEK → AMS May 19, 15:20 UTCMay 19, 16:35 UTC1h 15m
2026-05-19 CSN345 PEK → AMS May 19, 06:45 UTCMay 19, 06:55 UTC10m
2026-05-18 CSN674 LHR → PKX May 18, 05:20 UTCMay 18, 05:35 UTC15m
2026-05-17 CSN674 LHR → PKX May 17, 20:30 UTCMay 18, 02:45 UTC6h 15m
2026-05-17 CSN673 PKX → LHR May 17, 09:40 UTCMay 17, 16:30 UTC6h 50m
2026-05-15 CSN674 LHR → PKX May 15, 20:20 UTCMay 16, 02:40 UTC6h 20m
2026-05-15 CSN673 PKX → LHR May 15, 09:50 UTCMay 15, 16:40 UTC6h 49m
2026-05-14 CSN350 KUL → CAN May 14, 06:10 UTCMay 14, 06:30 UTC20m
2026-05-14 CSN349 CAN → KUL May 14, 00:55 UTCMay 14, 04:00 UTC3h 5m
2026-05-13 CSN306 AKL → CAN May 13, 20:30 UTCMay 13, 20:50 UTC20m
2026-05-13 CSN306 AKL → CAN May 13, 09:40 UTCMay 13, 19:45 UTC10h 5m
2026-05-12 CSN305 CAN → AKL May 12, 17:15 UTCMay 13, 03:15 UTC10h 0m
2026-05-12 CSN350 KUL → CAN May 12, 06:25 UTCMay 12, 06:45 UTC20m
2026-05-12 CSN349 CAN → KUL May 12, 03:45 UTCMay 12, 04:20 UTC35m
2026-05-11 CSN306 AKL → CAN May 11, 20:30 UTCMay 11, 20:50 UTC20m
2026-05-11 CSN306 AKL → CAN May 11, 09:40 UTCMay 11, 19:45 UTC10h 5m
2026-05-10 CSN305 CAN → AKL May 10, 17:15 UTCMay 11, 03:15 UTC10h 0m
2026-05-10 CSN350 KUL → CAN May 10, 06:25 UTCMay 10, 06:40 UTC15m
2026-05-10 CSN349 CAN → KUL May 10, 03:40 UTCMay 10, 04:19 UTC40m
2026-05-10 CSN349 CAN → KUL May 10, 01:04 UTCMay 10, 01:14 UTC10m
2026-05-09 CSN306 AKL → CAN May 9, 20:20 UTCMay 9, 20:55 UTC35m
2026-05-09 CSN306 AKL → CAN May 9, 09:30 UTCMay 9, 19:35 UTC10h 5m
2026-05-08 CSN305 CAN → AKL May 8, 17:30 UTCMay 9, 03:20 UTC9h 50m
2026-05-07 CSN674 LHR → PKX May 7, 04:50 UTCMay 7, 05:05 UTC15m
2026-05-06 CSN674 LHR → PKX May 6, 20:20 UTCMay 7, 02:20 UTC6h 0m
2026-05-06 CSN673 PKX → LHR May 6, 08:35 UTCMay 6, 17:15 UTC8h 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-32EW page for operator, model, and routing details .

Mode-S 781FA5 frequently asked

What is Mode-S code 781FA5?
781FA5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32EW.
Where is Mode-S 781FA5 registered?
Mode-S code 781FA5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781FA5 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781FA5, octal 36017645, decimal 7,872,421.
What flights does 781FA5 operate?
Mode-S 781FA5 has broadcast 10 distinct callsigns, including CSN306, CSN674, CSN673, CSN346, CSN345.