Apparatus

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sensors Mode-S transponder

781947

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-30F7 · AIRBUS A-320neo

Hex
781947
Octal
36014507
Decimal
7,870,791
Country
CN
Tail
B-30F7
Type
A20N
No current signal · last broadcast Jul 26, 13:05 UTC
Flights observed
150
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 13:05 UTC

Last known position

Most recent position reported by Mode-S 781947.

Country allocation

The ICAO 24-bit address 781947 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
CSN3038 - 20 2026-07-05
CSN3037 - 15 2026-07-05
CSN626 - 9 2026-06-30
CSN625 - 9 2026-06-30
CSN388 China Southern Airlines 9 2026-07-22
CSN387 - 8 2026-07-21
CSN8482 China Southern Airlines 6 2026-07-25
CSN8481 China Southern Airlines 6 2026-07-24
CSN8336 China Southern Airlines 6 2026-07-25
CSN8335 China Southern Airlines 5 2026-07-25
CSN8159 - 5 2026-06-16
CSN6670 China Southern Airlines 5 2026-05-01
CSN390 - 5 2026-07-16
CSN389 - 5 2026-07-16
CSN5047 - 4 2026-07-04
CSN8988 - 2 2026-07-13
CSN8490 - 2 2026-07-06
CSN8489 - 2 2026-07-06
CSN8137 China Southern Airlines 2 2026-07-26
CSN8073 China Southern Airlines 2 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN8137 CAN → SUB Jul 26, 12:30 UTCJul 26, 13:05 UTC35m
2026-07-26 CSN3531 CAN → SHA Jul 26, 03:15 UTCJul 26, 03:30 UTC15m
2026-07-25 CSN8336 BKI → CAN Jul 25, 13:50 UTCJul 25, 14:15 UTC25m
2026-07-25 CSN8336 BKI → CAN Jul 25, 11:30 UTCJul 25, 12:05 UTC35m
2026-07-25 CSN8335 CAN → BKI Jul 25, 09:55 UTCJul 25, 10:15 UTC20m
2026-07-25 CSN8335 CAN → BKI Jul 25, 07:45 UTCJul 25, 08:00 UTC15m
2026-07-25 CSN8482 DPS → CAN Jul 25, 04:50 UTCJul 25, 05:20 UTC30m
2026-07-24 CSN8481 CAN → DPS Jul 24, 19:00 UTCJul 25, 03:00 UTC8h 0m
2026-07-24 CSN8336 BKI → CAN Jul 24, 14:05 UTCJul 24, 14:45 UTC40m
2026-07-24 CSN8336 BKI → CAN Jul 24, 11:45 UTCJul 24, 12:10 UTC25m
2026-07-24 CSN8335 CAN → BKI Jul 24, 07:35 UTCJul 24, 10:30 UTC2h 55m
2026-07-24 CSN8138 SUB → CAN Jul 24, 05:10 UTCJul 24, 05:40 UTC30m
2026-07-23 CSN8137 CAN → SUB Jul 23, 10:20 UTCJul 24, 03:20 UTC17h 0m
2026-07-22 CSN388 CGK → CAN Jul 22, 02:10 UTCJul 22, 03:40 UTC1h 30m
2026-07-21 CSN387 - Jul 21, 16:40 UTCJul 21, 16:55 UTC15m
2026-07-21 CSN387 - Jul 21, 12:45 UTCJul 21, 12:55 UTC10m
2026-07-21 CSN3820 HGH → CAN Jul 21, 02:50 UTCJul 21, 03:35 UTC45m
2026-07-16 CSN390 - Jul 16, 07:10 UTCJul 16, 08:00 UTC50m
2026-07-16 CSN389 - Jul 16, 04:00 UTCJul 16, 05:10 UTC1h 10m
2026-07-13 CSN8988 - Jul 13, 02:30 UTCJul 13, 07:25 UTC4h 55m
2026-07-11 CSN388 - Jul 11, 06:20 UTCJul 11, 06:50 UTC30m
2026-07-11 CSN388 - Jul 11, 02:15 UTCJul 11, 03:40 UTC1h 25m
2026-07-10 CSN387 - Jul 10, 11:40 UTCJul 10, 11:50 UTC10m
2026-07-08 CSN3595 - Jul 8, 15:05 UTCJul 8, 16:20 UTC1h 15m
2026-07-08 CSN390 - Jul 8, 07:15 UTCJul 8, 08:15 UTC1h 0m
2026-07-08 CSN389 - Jul 8, 04:00 UTCJul 8, 05:05 UTC1h 5m
2026-07-06 CSN8490 - Jul 6, 20:40 UTCJul 6, 21:05 UTC25m
2026-07-06 CSN8489 - Jul 6, 18:45 UTCJul 6, 19:15 UTC30m
2026-07-05 CSN3038 - Jul 5, 10:30 UTCJul 5, 10:45 UTC15m
2026-07-05 CSN3038 - Jul 5, 06:20 UTCJul 5, 07:50 UTC1h 30m
2026-07-05 CSN3037 - Jul 5, 04:30 UTCJul 5, 04:40 UTC10m
2026-07-05 CSN3037 - Jul 5, 00:30 UTCJul 5, 03:20 UTC2h 50m
2026-07-04 CSN5048 - Jul 4, 17:05 UTCJul 4, 17:35 UTC30m
2026-07-04 CSN5047 - Jul 4, 14:05 UTCJul 4, 14:20 UTC15m
2026-07-04 CSN5047 - Jul 4, 11:00 UTCJul 4, 11:20 UTC20m
2026-07-04 CSN396 - Jul 4, 00:50 UTCJul 4, 01:00 UTC10m
2026-07-03 CSN395 - Jul 3, 14:35 UTCJul 3, 14:50 UTC15m
2026-07-03 CSN395 - Jul 3, 11:35 UTCJul 3, 11:50 UTC15m
2026-07-03 CSN388 - Jul 3, 02:20 UTCJul 3, 03:50 UTC1h 30m
2026-07-02 CSN387 CAN → CGK Jul 2, 17:30 UTCJul 2, 17:45 UTC15m
2026-07-02 CSN387 CAN → CGK Jul 2, 13:35 UTCJul 2, 13:50 UTC15m
2026-07-01 CSN3038 - Jul 1, 10:50 UTCJul 1, 11:15 UTC25m
2026-07-01 CSN3038 - Jul 1, 06:25 UTCJul 1, 08:10 UTC1h 45m
2026-07-01 CSN3037 - Jul 1, 00:35 UTCJul 1, 00:50 UTC15m
2026-06-30 CSN626 - Jun 30, 20:50 UTCJun 30, 21:25 UTC35m
2026-06-30 CSN625 - Jun 30, 11:00 UTCJun 30, 19:05 UTC8h 5m
2026-06-29 CSN5048 - Jun 29, 11:39 UTCJun 29, 11:55 UTC15m
2026-06-29 CSN5047 - Jun 29, 09:34 UTCJun 29, 09:50 UTC15m
2026-06-29 CSN5047 - Jun 29, 06:40 UTCJun 29, 06:50 UTC10m
2026-06-28 CSN390 - Jun 28, 07:50 UTCJun 28, 08:50 UTC1h 0m

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-30F7 page for operator, model, and routing details .

Mode-S 781947 frequently asked

What is Mode-S code 781947?
781947 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-30F7.
Where is Mode-S 781947 registered?
Mode-S code 781947 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781947 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781947, octal 36014507, decimal 7,870,791.
What flights does 781947 operate?
Mode-S 781947 has broadcast 20 distinct callsigns, including CSN3038, CSN3037, CSN626, CSN625, CSN388.