Apparatus

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sensors Mode-S transponder

780BA1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-9953 · AIRBUS A-320

Hex
780BA1
Octal
36005641
Decimal
7,867,297
Country
CN
Tail
B-9953
Type
A320
No current signal · last broadcast Jul 26, 12:05 UTC
Flights observed
72
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 12:05 UTC

Last known position

Most recent position reported by Mode-S 780BA1.

Country allocation

The ICAO 24-bit address 780BA1 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
CSN6638 China Southern Airlines 15 2026-07-26
CSN6144 China Southern Airlines 10 2026-07-25
CSN6150 - 8 2026-07-16
CSN3193 China Southern Airlines 5 2026-06-02
CSN8943 - 3 2026-07-17
CSN8930 China Southern Airlines 3 2026-07-25
CSN8871 - 3 2026-07-16
CSN355 China Southern Airlines 3 2026-04-27
CSN6149 - 2 2026-06-29
CSN6143 China Southern Airlines 2 2026-07-26
CSN5602 China Southern Airlines 2 2026-07-22
CSN3194 China Southern Airlines 2 2026-05-16
CSN8944 - 1 2026-07-12
CSN8929 China Southern Airlines 1 2026-07-25
CSN8872 - 1 2026-07-16
CSN8852 China Southern Airlines 1 2026-07-22
CSN8851 China Southern Airlines 1 2026-07-21
CSN8749 China Southern Airlines 1 2026-07-25
CSN8471 - 1 2026-07-12
CSN6183 China Southern Airlines 1 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN6638 HAK → PKX Jul 26, 11:55 UTCJul 26, 12:05 UTC10m
2026-07-26 CSN6143 CGQ → PKX Jul 26, 03:30 UTCJul 26, 03:45 UTC15m
2026-07-25 CSN6144 PKX → CGQ Jul 25, 23:55 UTCJul 26, 00:05 UTC10m
2026-07-25 CSN8749 PKX → WNH Jul 25, 08:10 UTCJul 25, 08:20 UTC10m
2026-07-25 CSN8930 LHW → PKX Jul 25, 05:00 UTCJul 25, 05:30 UTC30m
2026-07-25 CSN8929 PKX → LHW Jul 25, 00:15 UTCJul 25, 00:40 UTC25m
2026-07-22 CSN5602 LUM → PKX Jul 22, 15:20 UTCJul 22, 15:35 UTC15m
2026-07-22 CSN8852 HGH → PKX Jul 22, 03:10 UTCJul 22, 03:25 UTC15m
2026-07-21 CSN8851 PKX → HGH Jul 21, 12:55 UTCJul 21, 13:10 UTC15m
2026-07-19 CSN6638 - Jul 19, 10:35 UTCJul 19, 10:50 UTC15m
2026-07-18 CSN6144 PKX → CGQ Jul 18, 23:45 UTCJul 19, 00:00 UTC15m
2026-07-17 CSN8943 - Jul 17, 01:55 UTCJul 17, 02:05 UTC10m
2026-07-16 CSN8872 - Jul 16, 15:05 UTCJul 16, 15:14 UTC10m
2026-07-16 CSN8871 - Jul 16, 11:10 UTCJul 16, 11:25 UTC15m
2026-07-16 CSN6150 - Jul 16, 05:00 UTCJul 16, 05:15 UTC15m
2026-07-14 CSN6638 - Jul 14, 10:35 UTCJul 14, 10:45 UTC10m
2026-07-13 CSN8943 - Jul 13, 01:55 UTCJul 13, 02:05 UTC10m
2026-07-12 CSN8471 - Jul 12, 10:55 UTCJul 12, 11:15 UTC20m
2026-07-12 CSN8944 - Jul 12, 08:20 UTCJul 12, 08:30 UTC10m
2026-07-12 CSN8943 - Jul 12, 03:15 UTCJul 12, 03:25 UTC10m
2026-07-11 CSN8930 - Jul 11, 07:40 UTCJul 11, 08:10 UTC30m
2026-07-10 CSN5602 - Jul 10, 13:05 UTCJul 10, 13:15 UTC10m
2026-07-09 CSN6638 - Jul 9, 10:35 UTCJul 9, 10:45 UTC10m
2026-07-08 CSN6144 - Jul 8, 23:45 UTCJul 9, 00:00 UTC15m
2026-07-06 CSN6638 - Jul 6, 10:40 UTCJul 6, 11:00 UTC20m
2026-07-05 CSN6144 - Jul 5, 23:55 UTCJul 6, 00:05 UTC10m
2026-07-04 CSN6638 - Jul 4, 10:25 UTCJul 4, 10:40 UTC15m
2026-07-01 CSN5453 - Jul 1, 11:30 UTCJul 1, 11:45 UTC15m
2026-06-29 CSN8871 - Jun 29, 11:14 UTCJun 29, 11:25 UTC10m
2026-06-29 CSN6149 - Jun 29, 08:50 UTCJun 29, 09:05 UTC15m
2026-06-29 CSN6150 - Jun 29, 05:04 UTCJun 29, 05:15 UTC10m
2026-06-28 CSN6183 PKX → CTU Jun 28, 04:15 UTCJun 28, 04:25 UTC10m
2026-06-27 CSN6638 - Jun 27, 10:40 UTCJun 27, 10:54 UTC15m
2026-06-24 CSN8871 - Jun 24, 11:34 UTCJun 24, 11:50 UTC15m
2026-06-24 CSN6149 - Jun 24, 08:45 UTCJun 24, 08:55 UTC10m
2026-06-24 CSN6150 - Jun 24, 04:59 UTCJun 24, 05:09 UTC10m
2026-06-23 CSN6150 - Jun 23, 05:59 UTCJun 23, 06:15 UTC15m
2026-06-21 CSN6143 - Jun 21, 03:40 UTCJun 21, 03:49 UTC10m
2026-06-20 CSN6144 - Jun 20, 23:59 UTCJun 21, 00:14 UTC15m
2026-06-12 CSN6638 HAK → PKX Jun 12, 10:25 UTCJun 12, 10:45 UTC20m
2026-06-11 CSN6144 PKX → CGQ Jun 11, 23:50 UTCJun 12, 00:05 UTC15m
2026-06-10 CSN3904 CTU → PKX Jun 10, 13:25 UTCJun 10, 13:45 UTC20m
2026-06-10 CSN8930 LHW → PKX Jun 10, 05:00 UTCJun 10, 05:10 UTC10m
2026-06-08 CSN6150 PKX → CGQ Jun 8, 05:25 UTCJun 8, 05:40 UTC15m
2026-06-07 CSN6150 PKX → CGQ Jun 7, 05:00 UTCJun 7, 05:10 UTC10m
2026-06-06 CSN6638 HAK → PKX Jun 6, 10:30 UTCJun 6, 10:45 UTC15m
2026-06-05 CSN6144 PKX → CGQ Jun 5, 23:50 UTCJun 6, 00:00 UTC10m
2026-06-03 CSN6638 HAK → PKX Jun 3, 10:35 UTCJun 3, 10:55 UTC20m
2026-06-02 CSN6144 PKX → CGQ Jun 2, 23:55 UTCJun 3, 00:10 UTC15m
2026-06-02 CSN3193 SZX → PKX Jun 2, 05:05 UTCJun 2, 05:20 UTC15m

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-9953 page for operator, model, and routing details .

Mode-S 780BA1 frequently asked

What is Mode-S code 780BA1?
780BA1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-9953.
Where is Mode-S 780BA1 registered?
Mode-S code 780BA1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780BA1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 12:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 780BA1, octal 36005641, decimal 7,867,297.
What flights does 780BA1 operate?
Mode-S 780BA1 has broadcast 20 distinct callsigns, including CSN6638, CSN6144, CSN6150, CSN3193, CSN8943.