Apparatus

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sensors Mode-S transponder

781570

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-303X · AIRBUS A-321neo

Hex
781570
Octal
36012560
Decimal
7,869,808
Country
CN
Tail
B-303X
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
67
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 781570.

Country allocation

The ICAO 24-bit address 781570 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
CSN6312 - 7 2026-06-21
CSN6311 - 7 2026-06-21
CSN672 China Southern Airlines 6 2026-05-31
CSN6456 - 6 2026-06-23
CSN671 China Southern Airlines 4 2026-05-31
CSN6304 - 4 2026-07-13
CSN8874 - 3 2026-07-13
CSN6465 - 3 2026-07-12
CSN6347 - 3 2026-06-29
CSN6501 - 2 2026-04-13
CSN6469 China Southern Airlines 2 2026-06-22
CSN6367 China Southern Airlines 2 2026-04-30
CSN6303 - 2 2026-07-13
CSN5857 China Southern Airlines 2 2026-04-29
CSN5366 China Southern Airlines 2 2026-04-26
CSN682 - 1 2026-04-13
CSN681 China Southern Airlines 1 2026-04-13
CSN6483 China Southern Airlines 1 2026-04-19
CSN6470 China Southern Airlines 1 2026-06-22
CSN6414 China Southern Airlines 1 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSN6304 - Jul 13, 15:45 UTCJul 13, 16:00 UTC15m
2026-07-13 CSN6304 - Jul 13, 13:25 UTCJul 13, 13:35 UTC10m
2026-07-13 CSN6303 - Jul 13, 11:15 UTCJul 13, 11:30 UTC15m
2026-07-13 CSN6303 - Jul 13, 08:45 UTCJul 13, 09:05 UTC20m
2026-07-13 CSN8874 - Jul 13, 05:10 UTCJul 13, 05:20 UTC10m
2026-07-12 CSN6465 - Jul 12, 05:45 UTCJul 12, 15:10 UTC9h 25m
2026-07-10 CSN6304 - Jul 10, 15:50 UTCJul 10, 16:05 UTC15m
2026-07-10 CSN6304 - Jul 10, 13:25 UTCJul 10, 13:45 UTC20m
2026-07-10 CSN8874 - Jul 10, 04:40 UTCJul 10, 08:30 UTC3h 50m
2026-07-09 CSN3602 - Jul 9, 08:40 UTCJul 9, 08:50 UTC10m
2026-07-09 CSN8874 - Jul 9, 05:05 UTCJul 9, 05:15 UTC10m
2026-06-29 CSN6347 - Jun 29, 04:34 UTCJun 29, 11:39 UTC7h 5m
2026-06-27 CSN6465 - Jun 27, 05:39 UTCJun 27, 09:29 UTC3h 50m
2026-06-25 CSN6465 - Jun 25, 05:44 UTCJun 25, 14:59 UTC9h 15m
2026-06-23 CSN6456 - Jun 23, 09:59 UTCJun 24, 01:44 UTC15h 45m
2026-06-23 CSN6456 - Jun 23, 01:45 UTCJun 23, 14:49 UTC13h 5m
2026-06-22 CSN6470 CKG → SHE Jun 22, 10:49 UTCJun 23, 01:59 UTC15h 10m
2026-06-22 CSN6469 SHE → CKG Jun 22, 04:54 UTCJun 23, 01:59 UTC21h 5m
2026-06-21 CSN6469 SHE → CKG Jun 21, 09:40 UTCJun 22, 05:20 UTC19h 40m
2026-06-21 CSN6312 - Jun 21, 07:25 UTCJun 21, 07:40 UTC15m
2026-06-21 CSN6311 - Jun 21, 05:15 UTCJun 21, 05:35 UTC20m
2026-06-20 CSN6311 - Jun 20, 12:30 UTCJun 21, 02:50 UTC14h 20m
2026-06-16 CSN6312 - Jun 16, 06:04 UTCJun 16, 06:20 UTC15m
2026-06-16 CSN6311 - Jun 16, 03:35 UTCJun 16, 03:50 UTC15m
2026-06-13 CSN6414 XIY → SHE Jun 13, 05:35 UTCJun 13, 05:45 UTC10m
2026-06-11 CSN6456 XIY → SHE Jun 11, 14:45 UTCJun 12, 04:55 UTC14h 11m
2026-06-11 CSN6456 XIY → SHE Jun 11, 01:55 UTCJun 11, 14:50 UTC12h 55m
2026-05-31 CSN672 ICN → SHE May 31, 13:05 UTCMay 31, 13:30 UTC25m
2026-05-31 CSN671 SHE → ICN May 31, 10:50 UTCMay 31, 11:15 UTC25m
2026-05-29 CSN672 ICN → SHE May 29, 13:00 UTCMay 29, 13:25 UTC25m
2026-05-29 CSN671 SHE → ICN May 29, 10:55 UTCMay 29, 11:20 UTC25m
2026-05-26 CSN6312 SZX → SHE May 26, 08:15 UTCMay 27, 04:45 UTC20h 30m
2026-05-26 CSN6312 SZX → SHE May 26, 05:59 UTCMay 26, 06:14 UTC15m
2026-05-26 CSN6311 SHE → SZX May 26, 01:05 UTCMay 26, 01:24 UTC20m
2026-05-14 CSN6312 SZX → SHE May 14, 06:45 UTCMay 14, 07:00 UTC15m
2026-05-08 CSN6339 SHE → CAN May 8, 11:25 UTCMay 9, 02:30 UTC15h 5m
2026-05-06 CSN672 ICN → SHE May 6, 13:00 UTCMay 6, 13:15 UTC15m
2026-05-06 CSN6402 TFU → SHE May 6, 07:40 UTCMay 6, 10:30 UTC2h 50m
2026-05-05 CSN672 ICN → SHE May 5, 13:05 UTCMay 5, 13:20 UTC15m
2026-05-04 CSN6456 XIY → SHE May 4, 14:35 UTCMay 5, 07:50 UTC17h 16m
2026-05-04 CSN6456 XIY → SHE May 4, 01:20 UTCMay 4, 14:40 UTC13h 20m
2026-05-03 CSN672 ICN → SHE May 3, 13:10 UTCMay 3, 13:20 UTC10m
2026-05-03 CSN671 SHE → ICN May 3, 11:15 UTCMay 3, 11:25 UTC10m
2026-05-01 CSN6310 SZX → SHE May 1, 09:40 UTCMay 1, 09:50 UTC10m
2026-05-01 CSN6309 SHE → SZX May 1, 07:30 UTCMay 1, 07:50 UTC20m
2026-04-30 CSN6368 CAN → SHE Apr 30, 10:25 UTCMay 1, 05:15 UTC18h 50m
2026-04-30 CSN6367 SHE → CAN Apr 30, 02:55 UTCApr 30, 10:35 UTC7h 40m
2026-04-29 CSN6367 SHE → CAN Apr 29, 08:05 UTCApr 30, 03:15 UTC19h 10m
2026-04-29 CSN5857 SHE → HGH Apr 29, 00:59 UTCApr 29, 08:30 UTC7h 30m
2026-04-27 CSN6312 SZX → SHE Apr 27, 05:55 UTCApr 27, 06:05 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-303X page for operator, model, and routing details .

Mode-S 781570 frequently asked

What is Mode-S code 781570?
781570 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-303X.
Where is Mode-S 781570 registered?
Mode-S code 781570 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781570 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781570, octal 36012560, decimal 7,869,808.
What flights does 781570 operate?
Mode-S 781570 has broadcast 20 distinct callsigns, including CSN6312, CSN6311, CSN672, CSN6456, CSN671.