Apparatus

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sensors Mode-S transponder

781097

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8671 · AIRBUS A-320neo

Hex
781097
Octal
36010227
Decimal
7,868,567
Country
CN
Tail
B-8671
Type
A20N
No current signal · last broadcast Jul 26, 10:15 UTC
Flights observed
108
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 10:15 UTC

Last known position

Most recent position reported by Mode-S 781097.

Country allocation

The ICAO 24-bit address 781097 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
CSN6403 China Southern Airlines 24 2026-07-23
CSN6517 - 13 2026-07-20
CSN6465 - 10 2026-07-07
CSN6347 China Southern Airlines 10 2026-06-13
CSN6483 China Southern Airlines 9 2026-07-25
CSN6312 - 4 2026-06-15
CSN6386 China Southern Airlines 3 2026-07-26
CSN6380 China Southern Airlines 3 2026-07-23
CSN6311 China Southern Airlines 3 2026-05-18
CSN6309 China Southern Airlines 3 2026-04-27
CSN6674 - 2 2026-07-15
CSN6470 China Southern Airlines 2 2026-07-02
CSN6408 China Southern Airlines 2 2026-06-24
CSN6303 - 2 2026-07-14
CSN6265 China Southern Airlines 2 2026-05-25
CSN8874 - 1 2026-07-16
CSN672 - 1 2026-07-11
CSN671 - 1 2026-07-11
CSN6519 China Southern Airlines 1 2026-04-27
CSN6518 China Southern Airlines 1 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN6386 SHE → SZX Jul 26, 10:00 UTCJul 26, 10:15 UTC15m
2026-07-26 CSN6386 SHE → SZX Jul 26, 07:35 UTCJul 26, 07:45 UTC10m
2026-07-25 CSN6386 SHE → SZX Jul 25, 10:10 UTCJul 26, 07:45 UTC21h 36m
2026-07-25 CSN6483 SHE → SYX Jul 25, 02:10 UTCJul 25, 10:30 UTC8h 20m
2026-07-24 CSN6483 SHE → SYX Jul 24, 15:40 UTCJul 25, 10:30 UTC18h 50m
2026-07-23 CSN6380 CSX → SHE Jul 23, 15:50 UTCJul 24, 15:45 UTC23h 55m
2026-07-23 CSN6403 SHE → CKG Jul 23, 01:50 UTCJul 23, 15:55 UTC14h 5m
2026-07-22 CSN6403 SHE → CKG Jul 22, 16:00 UTCJul 23, 15:45 UTC23h 45m
2026-07-22 CSN6403 SHE → CKG Jul 22, 01:35 UTCJul 22, 16:05 UTC14h 30m
2026-07-21 CSN6403 SHE → CKG Jul 21, 13:45 UTCJul 22, 02:00 UTC12h 15m
2026-07-20 CSN6517 - Jul 20, 02:20 UTCJul 20, 12:05 UTC9h 45m
2026-07-19 CSN6517 - Jul 19, 07:50 UTCJul 20, 03:00 UTC19h 10m
2026-07-19 CSN6517 - Jul 19, 07:30 UTCJul 20, 03:00 UTC19h 30m
2026-07-19 CSN6517 - Jul 19, 04:30 UTCJul 20, 03:00 UTC22h 30m
2026-07-18 CSN6517 - Jul 18, 14:45 UTCJul 19, 07:50 UTC17h 5m
2026-07-18 CSN6517 - Jul 18, 07:40 UTCJul 19, 04:30 UTC20h 50m
2026-07-17 CSN5364 - Jul 17, 15:49 UTCJul 18, 14:55 UTC23h 6m
2026-07-17 CSN6380 - Jul 17, 15:44 UTCJul 18, 07:45 UTC16h 1m
2026-07-17 CSN6403 - Jul 17, 01:29 UTCJul 17, 15:55 UTC14h 25m
2026-07-16 CSN6403 - Jul 16, 13:49 UTCJul 17, 07:40 UTC17h 50m
2026-07-16 CSN8874 - Jul 16, 04:35 UTCJul 16, 04:50 UTC15m
2026-07-15 CSN6674 - Jul 15, 13:40 UTCJul 15, 13:55 UTC15m
2026-07-14 CSN6304 - Jul 14, 13:25 UTCJul 14, 13:35 UTC10m
2026-07-14 CSN6303 - Jul 14, 11:15 UTCJul 14, 11:30 UTC15m
2026-07-13 CSN6303 - Jul 13, 19:15 UTCJul 14, 08:50 UTC13h 35m
2026-07-13 CSN6388 - Jul 13, 16:55 UTCJul 13, 17:05 UTC10m
2026-07-13 CSN6387 - Jul 13, 09:00 UTCJul 13, 09:15 UTC15m
2026-07-11 CSN672 - Jul 11, 13:00 UTCJul 11, 13:20 UTC20m
2026-07-11 CSN671 - Jul 11, 11:05 UTCJul 11, 11:25 UTC20m
2026-07-10 CSN6403 - Jul 10, 07:35 UTCJul 11, 01:35 UTC18h 0m
2026-07-10 CSN6403 - Jul 10, 01:15 UTCJul 10, 16:10 UTC14h 55m
2026-07-09 CSN6403 - Jul 9, 09:15 UTCJul 10, 07:40 UTC22h 25m
2026-07-07 CSN6465 - Jul 7, 05:55 UTCJul 7, 09:00 UTC3h 5m
2026-07-05 CSN6403 - Jul 5, 02:00 UTCJul 5, 16:40 UTC14h 40m
2026-07-04 CSN6403 - Jul 4, 13:35 UTCJul 5, 07:30 UTC17h 55m
2026-07-04 CSN6403 - Jul 4, 05:50 UTCJul 5, 02:25 UTC20h 35m
2026-07-02 CSN6470 CKG → SHE Jul 2, 11:10 UTCJul 3, 06:50 UTC19h 40m
2026-07-01 CSN6470 CKG → SHE Jul 1, 12:50 UTCJul 2, 11:30 UTC22h 40m
2026-06-30 CSN6380 - Jun 30, 15:25 UTCJul 1, 02:25 UTC11h 0m
2026-06-30 CSN6404 - Jun 30, 07:10 UTCJul 1, 02:25 UTC19h 15m
2026-06-30 CSN6403 - Jun 30, 01:04 UTCJun 30, 15:35 UTC14h 31m
2026-06-29 CSN6403 - Jun 29, 06:09 UTCJun 30, 01:30 UTC19h 21m
2026-06-28 CSN5996 - Jun 28, 15:44 UTCJun 29, 06:19 UTC14h 35m
2026-06-28 CSN6403 - Jun 28, 01:15 UTCJun 28, 15:49 UTC14h 35m
2026-06-27 CSN6403 - Jun 27, 02:45 UTCJun 28, 01:40 UTC22h 55m
2026-06-24 CSN6408 CSX → SHE Jun 24, 06:20 UTCJun 24, 09:55 UTC3h 35m
2026-06-21 CSN6465 - Jun 21, 09:00 UTCJun 22, 02:59 UTC18h 0m
2026-06-21 CSN6465 - Jun 21, 05:20 UTCJun 22, 02:59 UTC21h 40m
2026-06-20 CSN6465 - Jun 20, 14:29 UTCJun 21, 09:29 UTC19h 0m
2026-06-20 CSN6465 - Jun 20, 08:59 UTCJun 21, 05:35 UTC20h 35m

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-8671 page for operator, model, and routing details .

Mode-S 781097 frequently asked

What is Mode-S code 781097?
781097 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8671.
Where is Mode-S 781097 registered?
Mode-S code 781097 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781097 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 10:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781097, octal 36010227, decimal 7,868,567.
What flights does 781097 operate?
Mode-S 781097 has broadcast 20 distinct callsigns, including CSN6403, CSN6517, CSN6465, CSN6347, CSN6483.