Apparatus

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sensors Mode-S transponder

781B10

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-322F · AIRBUS A-320neo

Hex
781B10
Octal
36015420
Decimal
7,871,248
Country
CN
Tail
B-322F
Type
A20N
No current signal · last broadcast 22h ago
Flights observed
156
Distinct callsigns
20
Country
CN
Last broadcast
22h ago

Last known position

Most recent position reported by Mode-S 781B10.

Country allocation

The ICAO 24-bit address 781B10 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
CSN8079 - 23 2026-07-15
CSN3033 - 21 2026-07-13
CSN8080 - 20 2026-07-15
CSN3034 - 15 2026-07-13
CSN3035 China Southern Airlines 10 2026-05-17
CSN6092 - 8 2026-06-29
CSN3499 - 7 2026-07-04
CSN3036 China Southern Airlines 7 2026-05-05
CSN6090 - 6 2026-07-13
CSN8149 - 5 2026-07-11
CSN6091 - 5 2026-06-28
CSN6089 - 5 2026-07-13
CSN8150 - 4 2026-07-12
CSN6060 - 3 2026-06-22
CSN3415 - 3 2026-06-25
CSN6059 - 2 2026-07-17
CSN3992 - 2 2026-04-29
CSN3711 China Southern Airlines 2 2026-05-24
CSN3493 - 2 2026-06-15
CSN3184 China Southern Airlines 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSN6059 - Jul 17, 05:10 UTCJul 17, 05:20 UTC10m
2026-07-16 CSN8479 - Jul 16, 08:40 UTCJul 16, 08:50 UTC10m
2026-07-15 CSN8080 - Jul 15, 06:00 UTCJul 15, 06:10 UTC10m
2026-07-15 CSN8079 - Jul 15, 04:05 UTCJul 15, 04:30 UTC25m
2026-07-13 CSN6090 - Jul 13, 22:00 UTCJul 13, 22:30 UTC30m
2026-07-13 CSN6089 - Jul 13, 16:15 UTCJul 13, 16:25 UTC10m
2026-07-13 CSN3034 - Jul 13, 12:05 UTCJul 13, 13:20 UTC1h 15m
2026-07-13 CSN3033 - Jul 13, 09:25 UTCJul 13, 10:40 UTC1h 15m
2026-07-12 CSN3034 - Jul 12, 12:01 UTCJul 12, 13:15 UTC1h 15m
2026-07-12 CSN3033 - Jul 12, 09:20 UTCJul 12, 10:35 UTC1h 15m
2026-07-12 CSN3033 - Jul 12, 08:15 UTCJul 12, 08:30 UTC15m
2026-07-12 CSN8150 - Jul 12, 01:20 UTCJul 12, 05:25 UTC4h 5m
2026-07-11 CSN6090 - Jul 11, 21:35 UTCJul 11, 21:55 UTC20m
2026-07-11 CSN6089 - Jul 11, 16:10 UTCJul 11, 16:20 UTC10m
2026-07-11 CSN3034 - Jul 11, 11:55 UTCJul 11, 13:10 UTC1h 15m
2026-07-11 CSN3033 - Jul 11, 10:20 UTCJul 11, 10:40 UTC20m
2026-07-11 CSN3033 - Jul 11, 09:25 UTCJul 11, 09:40 UTC15m
2026-07-11 CSN3033 - Jul 11, 08:25 UTCJul 11, 08:40 UTC15m
2026-07-11 CSN8149 - Jul 11, 01:15 UTCJul 11, 05:20 UTC4h 5m
2026-07-10 CSN3034 - Jul 10, 11:45 UTCJul 10, 13:00 UTC1h 15m
2026-07-10 CSN3033 - Jul 10, 09:20 UTCJul 10, 10:40 UTC1h 20m
2026-07-09 CSN3034 - Jul 9, 13:45 UTCJul 9, 14:45 UTC1h 0m
2026-07-09 CSN3033 - Jul 9, 10:25 UTCJul 9, 12:40 UTC2h 15m
2026-07-09 CSN8150 - Jul 9, 01:35 UTCJul 9, 05:20 UTC3h 45m
2026-07-08 CSN6090 - Jul 8, 22:00 UTCJul 8, 22:30 UTC30m
2026-07-08 CSN6089 - Jul 8, 16:15 UTCJul 8, 16:25 UTC10m
2026-07-08 CSN3034 - Jul 8, 11:50 UTCJul 8, 13:10 UTC1h 20m
2026-07-08 CSN3033 - Jul 8, 02:55 UTCJul 8, 10:45 UTC7h 50m
2026-07-04 CSN3499 - Jul 4, 12:20 UTCJul 4, 13:10 UTC50m
2026-07-04 CSN8080 - Jul 4, 07:40 UTCJul 4, 09:00 UTC1h 20m
2026-07-04 CSN8079 - Jul 4, 03:50 UTCJul 4, 06:20 UTC2h 30m
2026-07-01 CSN8080 - Jul 1, 07:15 UTCJul 1, 07:25 UTC10m
2026-07-01 CSN8080 - Jul 1, 05:55 UTCJul 1, 06:15 UTC20m
2026-07-01 CSN8079 - Jul 1, 02:10 UTCJul 1, 04:25 UTC2h 15m
2026-06-29 CSN6092 - Jun 29, 06:14 UTCJun 29, 09:50 UTC3h 35m
2026-06-28 CSN6091 - Jun 28, 08:29 UTCJun 28, 11:45 UTC3h 15m
2026-06-27 CSN3034 - Jun 27, 12:04 UTCJun 28, 11:45 UTC23h 40m
2026-06-27 CSN3034 - Jun 27, 11:59 UTCJun 28, 09:10 UTC21h 10m
2026-06-27 CSN3033 - Jun 27, 08:25 UTCJun 27, 10:34 UTC2h 10m
2026-06-27 CSN8149 - Jun 27, 01:35 UTCJun 27, 05:19 UTC3h 45m
2026-06-26 CSN8080 - Jun 26, 07:10 UTCJun 26, 07:20 UTC10m
2026-06-26 CSN8080 - Jun 26, 05:50 UTCJun 26, 06:19 UTC30m
2026-06-26 CSN8079 - Jun 26, 02:24 UTCJun 26, 04:20 UTC1h 55m
2026-06-25 CSN8079 - Jun 25, 08:04 UTCJun 26, 04:20 UTC20h 15m
2026-06-25 CSN8079 - Jun 25, 07:49 UTCJun 26, 04:20 UTC20h 30m
2026-06-25 CSN3415 - Jun 25, 04:04 UTCJun 26, 04:00 UTC23h 55m
2026-06-23 CSN3415 - Jun 23, 03:20 UTCJun 23, 07:40 UTC4h 20m
2026-06-22 CSN6060 - Jun 22, 05:10 UTCJun 22, 10:25 UTC5h 15m
2026-06-21 CSN6092 - Jun 21, 05:44 UTCJun 21, 10:44 UTC5h 0m
2026-06-20 CSN6060 - Jun 20, 05:14 UTCJun 20, 10:25 UTC5h 10m

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-322F page for operator, model, and routing details .

Mode-S 781B10 frequently asked

What is Mode-S code 781B10?
781B10 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-322F.
Where is Mode-S 781B10 registered?
Mode-S code 781B10 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781B10 broadcasting right now?
No active broadcast right now. Last signal was 22h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781B10, octal 36015420, decimal 7,871,248.
What flights does 781B10 operate?
Mode-S 781B10 has broadcast 20 distinct callsigns, including CSN8079, CSN3033, CSN8080, CSN3034, CSN3035.