Apparatus

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sensors Mode-S transponder

781948

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30F8 · AIRBUS A-320neo

Hex
781948
Octal
36014510
Decimal
7,870,792
Country
CN
Tail
B-30F8
Type
A20N
No current signal · last broadcast 2d ago
Flights observed
152
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 781948.

Country allocation

The ICAO 24-bit address 781948 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
CSN3090 China Southern Airlines 12 2026-05-26
CSN8158 China Southern Airlines 11 2026-05-01
CSN3089 China Southern Airlines 11 2026-05-26
CSN8609 China Southern Airlines 9 2026-05-27
CSN8157 China Southern Airlines 8 2026-05-01
CSN5795 China Southern Airlines 6 2026-05-13
CSN8469 China Southern Airlines 5 2026-05-19
CSN5086 China Southern Airlines 4 2026-05-24
CSN5080 China Southern Airlines 4 2026-05-08
CSN5079 China Southern Airlines 4 2026-05-08
CSN8610 China Southern Airlines 3 2026-05-27
CSN5853 China Southern Airlines 3 2026-05-17
CSN5085 China Southern Airlines 3 2026-05-23
CSN6969 China Southern Airlines 2 2026-05-10
CSN6479 China Southern Airlines 2 2026-05-23
CSN6446 China Southern Airlines 2 2026-05-22
CSN6443 China Southern Airlines 2 2026-05-26
CSN6385 China Southern Airlines 2 2026-05-28
CSN5854 China Southern Airlines 2 2026-05-17
CSN5796 China Southern Airlines 2 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 CSN6385 SZX → SHE May 28, 00:55 UTCMay 28, 01:10 UTC15m
2026-05-27 CSN8610 URC → SZX May 27, 16:00 UTCMay 27, 16:10 UTC10m
2026-05-27 CSN8609 SZX → URC May 27, 03:59 UTCMay 27, 04:09 UTC10m
2026-05-26 CSN6443 SZX → HAK May 26, 22:50 UTCMay 26, 23:05 UTC15m
2026-05-26 CSN8612 JHG → SZX May 26, 15:54 UTCMay 26, 16:10 UTC15m
2026-05-26 CSN8611 SZX → JHG May 26, 10:29 UTCMay 26, 10:50 UTC20m
2026-05-26 CSN3090 ICN → SZX May 26, 05:54 UTCMay 26, 06:25 UTC30m
2026-05-26 CSN3089 SZX → ICN May 26, 03:30 UTCMay 26, 04:04 UTC35m
2026-05-25 CSN8474 SGN → SZX May 25, 21:35 UTCMay 25, 21:49 UTC15m
2026-05-25 CSN8473 SZX → SGN May 25, 15:00 UTCMay 25, 15:10 UTC10m
2026-05-24 CSN8609 SZX → URC May 24, 04:00 UTCMay 24, 04:15 UTC15m
2026-05-24 CSN5086 SIN → SZX May 24, 00:55 UTCMay 24, 01:05 UTC10m
2026-05-23 CSN5086 SIN → SZX May 23, 21:40 UTCMay 23, 21:55 UTC15m
2026-05-23 CSN5085 SZX → SIN May 23, 19:20 UTCMay 23, 19:55 UTC35m
2026-05-23 CSN5085 SZX → SIN May 23, 16:30 UTCMay 23, 16:40 UTC10m
2026-05-23 CSN6479 SZX → HGH May 23, 07:10 UTCMay 23, 07:20 UTC10m
2026-05-23 CSN6254 HAK → SZX May 23, 05:00 UTCMay 23, 05:25 UTC25m
2026-05-23 CSN6253 SZX → HAK May 23, 02:25 UTCMay 23, 02:35 UTC9m
2026-05-22 CSN6446 CGD → SZX May 22, 16:05 UTCMay 22, 16:30 UTC25m
2026-05-22 CSN3090 ICN → SZX May 22, 09:10 UTCMay 22, 09:20 UTC10m
2026-05-22 CSN3090 ICN → SZX May 22, 06:05 UTCMay 22, 06:30 UTC25m
2026-05-22 CSN3089 SZX → ICN May 22, 03:20 UTCMay 22, 04:00 UTC40m
2026-05-22 CSN3089 SZX → ICN May 22, 01:00 UTCMay 22, 01:15 UTC15m
2026-05-21 CSN8610 URC → SZX May 21, 17:35 UTCMay 21, 17:45 UTC10m
2026-05-21 CSN8609 SZX → URC May 21, 05:55 UTCMay 21, 06:05 UTC10m
2026-05-21 CSN395T CAN → PEN May 21, 01:45 UTCMay 21, 02:05 UTC20m
2026-05-20 CSN6482 HRB → SZX May 20, 11:20 UTCMay 20, 11:35 UTC15m
2026-05-20 CSN6481 SZX → HRB May 20, 04:25 UTCMay 20, 08:55 UTC4h 31m
2026-05-19 CSN8469 SZX → HAN May 19, 07:00 UTCMay 19, 07:15 UTC15m
2026-05-19 CSN6850 HGH → SZX May 19, 04:35 UTCMay 19, 04:55 UTC20m
2026-05-18 CSN6849 SZX → HGH May 18, 23:05 UTCMay 18, 23:20 UTC15m
2026-05-18 CSN8609 SZX → URC May 18, 03:55 UTCMay 18, 04:11 UTC15m
2026-05-18 CSN8738 NGB → SZX May 18, 01:25 UTCMay 18, 01:45 UTC20m
2026-05-17 CSN8469 SZX → HAN May 17, 06:45 UTCMay 17, 06:55 UTC10m
2026-05-17 CSN5854 SYX → SZX May 17, 05:05 UTCMay 17, 05:20 UTC15m
2026-05-17 CSN5853 SZX → SYX May 17, 00:35 UTCMay 17, 00:50 UTC15m
2026-05-16 CSN8469 SZX → HAN May 16, 06:50 UTCMay 16, 07:01 UTC10m
2026-05-15 CSN5861 SZX → CTU May 15, 23:25 UTCMay 15, 23:35 UTC10m
2026-05-15 CSN5369 SZX → XNN May 15, 09:35 UTCMay 15, 09:45 UTC10m
2026-05-15 CSN3465 SZX → CKG May 15, 00:30 UTCMay 15, 00:40 UTC10m
2026-05-14 CSN5854 SYX → SZX May 14, 16:10 UTCMay 14, 16:20 UTC10m
2026-05-14 CSN5853 SZX → SYX May 14, 10:05 UTCMay 14, 10:20 UTC15m
2026-05-13 CSN3171 SZX → PKX May 13, 23:45 UTCMay 13, 23:55 UTC10m
2026-05-13 CSN5795 SZX → URC May 13, 01:20 UTCMay 13, 01:30 UTC10m
2026-05-12 CSN8609 SZX → URC May 12, 04:00 UTCMay 12, 04:10 UTC10m
2026-05-11 CSN3365 SZX → HGH May 11, 13:10 UTCMay 11, 13:20 UTC10m
2026-05-11 CSN8965 - May 11, 04:55 UTCMay 11, 05:10 UTC15m
2026-05-11 CSN6444 HAK → SZX May 11, 02:10 UTCMay 11, 02:25 UTC15m
2026-05-10 CSN6443 SZX → HAK May 10, 22:55 UTCMay 10, 23:15 UTC20m
2026-05-10 CSN6480 HGH → SZX May 10, 12:05 UTCMay 10, 12:25 UTC20m

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-30F8 page for operator, model, and routing details .

Mode-S 781948 frequently asked

What is Mode-S code 781948?
781948 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30F8.
Where is Mode-S 781948 registered?
Mode-S code 781948 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781948 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781948, octal 36014510, decimal 7,870,792.
What flights does 781948 operate?
Mode-S 781948 has broadcast 20 distinct callsigns, including CSN3090, CSN8158, CSN3089, CSN8609, CSN8157.