Apparatus

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sensors Mode-S transponder

78156F

ICAO 24-bit transponder address · allocated to China

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

Hex
78156F
Octal
36012557
Decimal
7,869,807
Country
CN
Tail
B-303W
Type
A21N
No current signal · last broadcast Jul 26, 13:35 UTC
Flights observed
187
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 13:35 UTC

Last known position

Most recent position reported by Mode-S 78156F.

Country allocation

The ICAO 24-bit address 78156F 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
CSN352 China Southern Airlines 17 2026-07-24
CSN3040 China Southern Airlines 14 2026-07-26
CSN351 China Southern Airlines 11 2026-07-23
CSN339 - 11 2026-07-17
CSN340 China Southern Airlines 10 2026-07-18
CSN8484 China Southern Airlines 8 2026-07-19
CSN3061 China Southern Airlines 8 2026-07-25
CSN3044 - 8 2026-07-16
CSN3039 China Southern Airlines 8 2026-07-26
CSN8483 China Southern Airlines 7 2026-07-19
CSN357 - 7 2026-07-17
CSN3062 China Southern Airlines 7 2026-07-25
CSN5015 - 6 2026-06-21
CSN363 - 6 2026-07-10
CSN354 China Southern Airlines 6 2026-04-27
CSN5016 - 5 2026-06-21
CSN364 - 5 2026-07-10
CSN353 China Southern Airlines 5 2026-04-27
CSN3043 - 5 2026-07-16
CSN358 - 4 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN3040 SIN → CAN Jul 26, 13:20 UTCJul 26, 13:35 UTC15m
2026-07-26 CSN3040 SIN → CAN Jul 26, 10:05 UTCJul 26, 10:30 UTC25m
2026-07-26 CSN3039 CAN → SIN Jul 26, 08:15 UTCJul 26, 08:35 UTC20m
2026-07-25 CSN3062 ICN → CAN Jul 25, 07:55 UTCJul 25, 08:35 UTC40m
2026-07-25 CSN3061 CAN → ICN Jul 25, 05:15 UTCJul 25, 05:55 UTC40m
2026-07-24 CSN352 SIN → CAN Jul 24, 03:45 UTCJul 24, 04:15 UTC30m
2026-07-24 CSN352 SIN → CAN Jul 24, 00:40 UTCJul 24, 01:05 UTC25m
2026-07-23 CSN351 CAN → SIN Jul 23, 15:00 UTCJul 23, 15:15 UTC15m
2026-07-23 CSN351 CAN → SIN Jul 23, 12:00 UTCJul 23, 12:15 UTC15m
2026-07-23 CSN3616 HRB → CAN Jul 23, 07:05 UTCJul 23, 07:20 UTC15m
2026-07-21 CSN3407 CAN → KMG Jul 21, 07:40 UTCJul 21, 07:50 UTC10m
2026-07-21 CSN352 SIN → CAN Jul 21, 03:10 UTCJul 21, 03:45 UTC35m
2026-07-21 CSN352 SIN → CAN Jul 21, 00:05 UTCJul 21, 00:35 UTC30m
2026-07-20 CSN351 - Jul 20, 14:55 UTCJul 20, 15:05 UTC10m
2026-07-20 CSN8988 HLD → CAN Jul 20, 02:35 UTCJul 20, 07:15 UTC4h 40m
2026-07-19 CSN8484 BKI → CAN Jul 19, 20:20 UTCJul 19, 20:55 UTC35m
2026-07-19 CSN8484 BKI → CAN Jul 19, 18:10 UTCJul 19, 18:40 UTC30m
2026-07-19 CSN8483 CAN → BKI Jul 19, 16:45 UTCJul 19, 17:00 UTC15m
2026-07-19 CSN8483 CAN → BKI Jul 19, 14:30 UTCJul 19, 14:55 UTC25m
2026-07-19 CSN3062 - Jul 19, 08:00 UTCJul 19, 08:35 UTC35m
2026-07-19 CSN3061 CAN → ICN Jul 19, 06:10 UTCJul 19, 06:50 UTC40m
2026-07-18 CSN8484 BKI → CAN Jul 18, 20:45 UTCJul 18, 21:05 UTC20m
2026-07-18 CSN8484 BKI → CAN Jul 18, 18:40 UTCJul 18, 19:10 UTC30m
2026-07-18 CSN8483 CAN → BKI Jul 18, 17:20 UTCJul 18, 17:35 UTC15m
2026-07-18 CSN8483 CAN → BKI Jul 18, 15:05 UTCJul 18, 15:25 UTC20m
2026-07-18 CSN3407 - Jul 18, 07:55 UTCJul 18, 08:45 UTC50m
2026-07-18 CSN340 ICN → CAN Jul 18, 01:34 UTCJul 18, 02:19 UTC45m
2026-07-17 CSN339 - Jul 17, 11:45 UTCJul 17, 12:25 UTC40m
2026-07-17 CSN358 - Jul 17, 04:29 UTCJul 17, 04:44 UTC15m
2026-07-17 CSN357 - Jul 17, 02:45 UTCJul 17, 02:59 UTC15m
2026-07-17 CSN357 - Jul 17, 00:50 UTCJul 17, 01:00 UTC10m
2026-07-16 CSN3044 - Jul 16, 14:45 UTCJul 16, 15:05 UTC20m
2026-07-16 CSN3044 - Jul 16, 11:30 UTCJul 16, 12:00 UTC30m
2026-07-16 CSN3043 - Jul 16, 09:30 UTCJul 16, 10:00 UTC30m
2026-07-16 CSN3043 - Jul 16, 06:40 UTCJul 16, 06:50 UTC10m
2026-07-15 CSN6301 - Jul 15, 06:00 UTCJul 16, 01:05 UTC19h 5m
2026-07-15 CSN6301 - Jul 15, 02:50 UTCJul 16, 01:05 UTC22h 15m
2026-07-13 CSN3044 - Jul 13, 14:45 UTCJul 13, 15:15 UTC30m
2026-07-13 CSN3044 - Jul 13, 11:25 UTCJul 13, 11:45 UTC20m
2026-07-13 CSN3043 - Jul 13, 09:20 UTCJul 13, 09:55 UTC35m
2026-07-12 CSN8484 - Jul 12, 20:05 UTCJul 12, 20:35 UTC30m
2026-07-12 CSN8484 - Jul 12, 17:40 UTCJul 12, 19:15 UTC1h 35m
2026-07-12 CSN8483 - Jul 12, 16:10 UTCJul 12, 16:30 UTC20m
2026-07-12 CSN8483 - Jul 12, 13:45 UTCJul 12, 15:10 UTC1h 25m
2026-07-12 CSN352 - Jul 12, 03:20 UTCJul 12, 03:40 UTC20m
2026-07-12 CSN352 - Jul 12, 00:20 UTCJul 12, 00:40 UTC20m
2026-07-11 CSN351 - Jul 11, 14:40 UTCJul 11, 15:05 UTC25m
2026-07-11 CSN351 - Jul 11, 11:50 UTCJul 11, 12:00 UTC10m
2026-07-11 CSN8988 - Jul 11, 02:05 UTCJul 11, 07:00 UTC4h 55m
2026-07-10 CSN364 - Jul 10, 12:10 UTCJul 10, 13:45 UTC1h 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-303W page for operator, model, and routing details .

Mode-S 78156F frequently asked

What is Mode-S code 78156F?
78156F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-303W.
Where is Mode-S 78156F registered?
Mode-S code 78156F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78156F broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78156F, octal 36012557, decimal 7,869,807.
What flights does 78156F operate?
Mode-S 78156F has broadcast 20 distinct callsigns, including CSN352, CSN3040, CSN351, CSN339, CSN340.