Apparatus

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sensors Mode-S transponder

780AF2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-9931 · AIRBUS A-320

Hex
780AF2
Octal
36005362
Decimal
7,867,122
Country
CN
Tail
B-9931
Type
A320
No current signal · last broadcast Jul 26, 15:25 UTC
Flights observed
105
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 15:25 UTC

Last known position

Most recent position reported by Mode-S 780AF2.

Country allocation

The ICAO 24-bit address 780AF2 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
CSN6620 - 18 2026-07-19
CSN6619 - 13 2026-07-19
CSN6155 - 11 2026-07-15
CSN6358 China Southern Airlines 7 2026-06-06
CSN6541 China Southern Airlines 6 2026-05-26
CSN6357 China Southern Airlines 4 2026-06-06
CSN6146 - 4 2026-07-14
CSN6851 China Southern Airlines 3 2026-05-08
CSN6610 - 3 2026-07-21
CSN5470 China Southern Airlines 3 2026-04-25
CSN6852 China Southern Airlines 2 2026-05-17
CSN6609 - 2 2026-07-21
CSN6545 China Southern Airlines 2 2026-05-27
CSN6377 China Southern Airlines 2 2026-05-20
CSN6194 China Southern Airlines 2 2026-06-28
CSN5954 China Southern Airlines 2 2026-07-22
CSN3606 China Southern Airlines 2 2026-04-26
CSN8866 - 1 2026-06-11
CSN8256 China Southern Airlines 1 2026-06-26
CSN6767 China Southern Airlines 1 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN5577 CGQ → NGB Jul 26, 00:05 UTCJul 26, 15:25 UTC15h 21m
2026-07-24 CSN6168 PKX → CGQ Jul 24, 12:50 UTCJul 24, 13:00 UTC10m
2026-07-22 CSN5954 CGO → CGQ Jul 22, 13:20 UTCJul 22, 13:35 UTC15m
2026-07-21 CSN6610 - Jul 21, 11:20 UTCJul 21, 11:40 UTC20m
2026-07-21 CSN6610 - Jul 21, 09:05 UTCJul 21, 09:15 UTC10m
2026-07-21 CSN6609 - Jul 21, 07:05 UTCJul 21, 07:25 UTC20m
2026-07-21 CSN6420 CAN → KWE Jul 21, 00:40 UTCJul 21, 01:00 UTC20m
2026-07-19 CSN6620 - Jul 19, 13:45 UTCJul 19, 14:00 UTC15m
2026-07-19 CSN6620 - Jul 19, 09:45 UTCJul 19, 09:55 UTC10m
2026-07-19 CSN6619 - Jul 19, 07:50 UTCJul 19, 08:15 UTC25m
2026-07-19 CSN6619 - Jul 19, 01:30 UTCJul 19, 01:45 UTC15m
2026-07-17 CSN6620 - Jul 17, 12:30 UTCJul 17, 12:50 UTC20m
2026-07-17 CSN6620 - Jul 17, 08:00 UTCJul 17, 08:15 UTC15m
2026-07-17 CSN6619 - Jul 17, 05:55 UTCJul 17, 06:15 UTC20m
2026-07-16 CSN6620 - Jul 16, 14:40 UTCJul 17, 01:49 UTC11h 10m
2026-07-16 CSN6620 - Jul 16, 10:29 UTCJul 16, 10:50 UTC20m
2026-07-16 - - Jul 16, 08:30 UTCJul 16, 08:50 UTC20m
2026-07-16 CSN6619 - Jul 16, 01:45 UTCJul 16, 02:00 UTC15m
2026-07-15 CSN6155 - Jul 15, 03:50 UTCJul 15, 08:55 UTC5h 5m
2026-07-14 CSN6155 - Jul 14, 08:20 UTCJul 14, 08:30 UTC10m
2026-07-14 CSN6146 - Jul 14, 03:45 UTCJul 14, 03:55 UTC10m
2026-07-11 CSN6620 - Jul 11, 13:20 UTCJul 12, 07:50 UTC18h 30m
2026-07-11 CSN6620 - Jul 11, 09:20 UTCJul 11, 09:35 UTC15m
2026-07-11 CSN6619 - Jul 11, 07:50 UTCJul 11, 08:10 UTC20m
2026-07-10 CSN6155 - Jul 10, 07:20 UTCJul 11, 02:05 UTC18h 45m
2026-07-10 CSN6146 - Jul 10, 04:00 UTCJul 10, 04:15 UTC15m
2026-07-08 CSN6620 - Jul 8, 15:40 UTCJul 9, 02:30 UTC10h 50m
2026-07-08 CSN6620 - Jul 8, 11:45 UTCJul 8, 11:55 UTC10m
2026-07-07 CSN5954 - Jul 7, 09:15 UTCJul 8, 01:45 UTC16h 30m
2026-07-06 CSN6620 - Jul 6, 20:40 UTCJul 7, 09:25 UTC12h 45m
2026-07-06 CSN6620 - Jul 6, 12:30 UTCJul 6, 12:45 UTC15m
2026-07-06 CSN6619 - Jul 6, 08:10 UTCJul 6, 08:30 UTC20m
2026-07-05 CSN6620 - Jul 5, 14:10 UTCJul 5, 14:35 UTC25m
2026-07-05 CSN6620 - Jul 5, 10:00 UTCJul 5, 10:15 UTC15m
2026-07-05 CSN6619 - Jul 5, 08:25 UTCJul 5, 08:35 UTC10m
2026-07-05 CSN6619 - Jul 5, 01:35 UTCJul 5, 01:45 UTC10m
2026-07-04 CSN6620 - Jul 4, 15:00 UTCJul 4, 15:20 UTC20m
2026-07-04 CSN6620 - Jul 4, 11:10 UTCJul 4, 11:25 UTC15m
2026-07-04 CSN6619 - Jul 4, 09:10 UTCJul 4, 09:35 UTC25m
2026-07-03 CSN6619 - Jul 3, 12:05 UTCJul 4, 01:45 UTC13h 40m
2026-07-03 CSN6619 - Jul 3, 02:35 UTCJul 4, 01:45 UTC23h 10m
2026-07-03 CSN6553 - Jul 3, 02:05 UTCJul 3, 12:05 UTC10h 0m
2026-07-02 CSN6167 - Jul 2, 10:15 UTCJul 2, 10:25 UTC10m
2026-07-01 CSN6364 - Jul 1, 07:25 UTCJul 1, 07:45 UTC20m
2026-06-29 CSN6155 - Jun 29, 03:44 UTCJun 29, 07:59 UTC4h 15m
2026-06-28 CSN6194 PKX → CGQ Jun 28, 09:15 UTCJun 28, 09:25 UTC10m
2026-06-27 CSN6155 - Jun 27, 03:49 UTCJun 27, 09:40 UTC5h 50m
2026-06-26 CSN8256 CKG → CGQ Jun 26, 12:34 UTCJun 26, 12:55 UTC20m
2026-06-22 CSN6570 XIY → CGQ Jun 22, 06:10 UTCJun 22, 06:25 UTC15m
2026-06-15 CSN6610 - Jun 15, 09:54 UTCJun 15, 10:05 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-9931 page for operator, model, and routing details .

Mode-S 780AF2 frequently asked

What is Mode-S code 780AF2?
780AF2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-9931.
Where is Mode-S 780AF2 registered?
Mode-S code 780AF2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780AF2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780AF2, octal 36005362, decimal 7,867,122.
What flights does 780AF2 operate?
Mode-S 780AF2 has broadcast 20 distinct callsigns, including CSN6620, CSN6619, CSN6155, CSN6358, CSN6541.