Apparatus

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sensors Mode-S transponder

781149

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8363 · AIRBUS A-330-300

Hex
781149
Octal
36010511
Decimal
7,868,745
Country
CN
Tail
B-8363
Type
A333
No current signal · last broadcast 4h ago
Flights observed
83
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 781149.

Country allocation

The ICAO 24-bit address 781149 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
CSN8371 China Southern Airlines 23 2026-05-30
CSN8372 China Southern Airlines 8 2026-05-13
CSN3072 China Southern Airlines 7 2026-05-23
CSN3071 China Southern Airlines 6 2026-05-22
CSN3175 China Southern Airlines 4 2026-05-29
CSN3564 China Southern Airlines 3 2026-05-05
CSN3557 China Southern Airlines 3 2026-05-24
CSN3190 China Southern Airlines 3 2026-05-04
CSN3588 China Southern Airlines 2 2026-05-28
CSN3587 China Southern Airlines 2 2026-05-28
CSN3563 China Southern Airlines 2 2026-05-05
CSN3558 China Southern Airlines 2 2026-05-24
CSN3171 China Southern Airlines 2 2026-05-15
CSN6547 China Southern Airlines 1 2026-05-29
CSN3966 China Southern Airlines 1 2026-04-27
CSN3965 China Southern Airlines 1 2026-05-18
CSN3649 China Southern Airlines 1 2026-05-04
CSN3576 China Southern Airlines 1 2026-04-28
CSN3568 China Southern Airlines 1 2026-04-27
CSN3554 China Southern Airlines 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSN8371 SZX → SVO May 30, 07:50 UTCMay 30, 08:00 UTC10m
2026-05-29 CSN6547 SZX → HGH May 29, 10:50 UTCMay 29, 18:45 UTC7h 56m
2026-05-29 CSN3175 SZX → PKX May 29, 01:50 UTCMay 29, 02:05 UTC15m
2026-05-28 CSN3588 SHA → SZX May 28, 15:35 UTCMay 28, 15:55 UTC20m
2026-05-28 CSN3587 SZX → SHA May 28, 09:25 UTCMay 28, 09:35 UTC10m
2026-05-28 CSN3554 SHA → SZX May 28, 06:35 UTCMay 28, 06:55 UTC20m
2026-05-28 CSN3553 SZX → SHA May 28, 01:20 UTCMay 28, 01:35 UTC15m
2026-05-27 CSN3175 SZX → PKX May 27, 01:49 UTCMay 27, 01:59 UTC10m
2026-05-26 CSN3175 SZX → PKX May 26, 01:44 UTCMay 26, 01:55 UTC10m
2026-05-24 CSN3558 SHA → SZX May 24, 14:15 UTCMay 24, 14:40 UTC25m
2026-05-24 CSN3557 SZX → PVG May 24, 09:00 UTCMay 24, 09:10 UTC10m
2026-05-23 CSN3072 SYD → SZX May 23, 08:05 UTCMay 23, 08:20 UTC15m
2026-05-22 CSN3072 SYD → SZX May 22, 22:55 UTCMay 23, 06:55 UTC7h 59m
2026-05-22 CSN3071 SZX → SYD May 22, 13:00 UTCMay 22, 20:30 UTC7h 30m
2026-05-22 CSN3071 SZX → SYD May 22, 11:40 UTCMay 22, 12:05 UTC25m
2026-05-20 CSN3175 SZX → PKX May 20, 01:55 UTCMay 20, 02:05 UTC10m
2026-05-19 CSN3552 SHA → SZX May 19, 12:00 UTCMay 19, 12:25 UTC25m
2026-05-19 CSN3551 SZX → SHA May 19, 04:35 UTCMay 19, 04:45 UTC10m
2026-05-18 CSN3965 SZX → SHA May 18, 00:40 UTCMay 18, 00:50 UTC10m
2026-05-16 CSN3072 SYD → SZX May 16, 00:55 UTCMay 16, 08:55 UTC8h 1m
2026-05-15 CSN3071 SZX → SYD May 15, 13:10 UTCMay 15, 22:10 UTC8h 59m
2026-05-15 CSN3171 SZX → PKX May 15, 00:00 UTCMay 15, 00:15 UTC15m
2026-05-14 CSN3256 SHA → SZX May 14, 12:10 UTCMay 14, 12:25 UTC15m
2026-05-14 CSN3255 SZX → SHA May 14, 03:15 UTCMay 14, 03:30 UTC15m
2026-05-13 CSN8372 SVO → SZX May 13, 05:20 UTCMay 13, 05:35 UTC15m
2026-05-12 CSN8371 SZX → SVO May 12, 13:25 UTCMay 13, 00:15 UTC10h 50m
2026-05-12 CSN8371 SZX → SVO May 12, 08:10 UTCMay 12, 08:25 UTC15m
2026-05-10 CSN3588 SHA → SZX May 10, 14:40 UTCMay 10, 14:59 UTC20m
2026-05-10 CSN3587 SZX → SHA May 10, 09:24 UTCMay 10, 09:35 UTC10m
2026-05-09 CSN8372 SVO → SZX May 9, 20:40 UTCMay 10, 00:00 UTC3h 20m
2026-05-09 CSN8371 SZX → SVO May 9, 17:49 UTCMay 9, 18:10 UTC20m
2026-05-09 CSN8371 SZX → SVO May 9, 13:25 UTCMay 9, 17:00 UTC3h 35m
2026-05-09 CSN8371 SZX → SVO May 9, 07:55 UTCMay 9, 08:10 UTC15m
2026-05-07 CSN8371 SZX → SVO May 7, 08:20 UTCMay 8, 03:55 UTC19h 35m
2026-05-07 CSN8371 SZX → SVO May 7, 08:00 UTCMay 8, 03:55 UTC19h 55m
2026-05-06 CSN3169 SZX → PKX May 6, 03:45 UTCMay 6, 03:55 UTC10m
2026-05-05 CSN3564 HGH → SZX May 5, 13:35 UTCMay 5, 13:55 UTC20m
2026-05-05 CSN3563 SZX → HGH May 5, 08:15 UTCMay 5, 08:25 UTC10m
2026-05-04 CSN3649 CAN → FOC May 4, 22:55 UTCMay 4, 23:10 UTC15m
2026-05-04 CSN3190 PEK → SZX May 4, 14:50 UTCMay 4, 15:00 UTC10m
2026-05-04 CSN3465 SZX → CKG May 4, 00:34 UTCMay 4, 00:45 UTC10m
2026-05-02 CSN3072 SYD → SZX May 2, 07:50 UTCMay 2, 08:05 UTC15m
2026-05-01 CSN3072 SYD → SZX May 1, 22:55 UTCMay 2, 06:40 UTC7h 45m
2026-05-01 CSN3071 SZX → SYD May 1, 12:30 UTCMay 1, 20:20 UTC7h 50m
2026-05-01 CSN3071 SZX → SYD May 1, 11:05 UTCMay 1, 11:35 UTC30m
2026-04-30 CSN3213 SZX → XIY Apr 30, 00:15 UTCApr 30, 00:25 UTC10m
2026-04-29 CSN3190 PEK → SZX Apr 29, 16:45 UTCApr 29, 17:01 UTC15m
2026-04-29 CSN3189 SZX → PEK Apr 29, 09:00 UTCApr 29, 09:10 UTC10m
2026-04-28 CSN8372 SVO → SZX Apr 28, 20:50 UTCApr 28, 21:19 UTC30m
2026-04-28 CSN8371 SZX → SVO Apr 28, 17:15 UTCApr 28, 17:40 UTC25m

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-8363 page for operator, model, and routing details .

Mode-S 781149 frequently asked

What is Mode-S code 781149?
781149 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8363.
Where is Mode-S 781149 registered?
Mode-S code 781149 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781149 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781149, octal 36010511, decimal 7,868,745.
What flights does 781149 operate?
Mode-S 781149 has broadcast 20 distinct callsigns, including CSN8371, CSN8372, CSN3072, CSN3071, CSN3175.