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 15h ago
Flights observed
150
Distinct callsigns
20
Country
CN
Last broadcast
15h ago

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 - 13 2026-07-12
CSN3040 - 12 2026-07-01
CSN339 - 10 2026-07-07
CSN340 - 9 2026-07-08
CSN351 - 8 2026-07-11
CSN3039 - 7 2026-07-01
CSN5015 - 6 2026-06-21
CSN363 - 6 2026-07-10
CSN354 China Southern Airlines 6 2026-04-27
CSN3061 - 6 2026-06-13
CSN3044 - 6 2026-07-13
CSN5016 - 5 2026-06-21
CSN364 - 5 2026-07-10
CSN357 - 5 2026-07-06
CSN353 China Southern Airlines 5 2026-04-27
CSN3062 China Southern Airlines 5 2026-06-13
CSN8484 - 4 2026-07-12
CSN8483 - 3 2026-07-12
CSN8099 - 3 2026-06-25
CSN358 - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-10 CSN363 - Jul 10, 10:10 UTCJul 10, 10:50 UTC40m
2026-07-09 CSN3905 - Jul 9, 17:00 UTCJul 10, 02:25 UTC9h 25m
2026-07-08 CSN340 - Jul 8, 01:25 UTCJul 8, 08:00 UTC6h 35m
2026-07-07 CSN339 - Jul 7, 13:10 UTCJul 7, 13:50 UTC40m
2026-07-06 CSN364 - Jul 6, 14:55 UTCJul 6, 16:30 UTC1h 35m
2026-07-06 CSN363 - Jul 6, 04:35 UTCJul 6, 13:40 UTC9h 5m
2026-07-06 CSN357 - Jul 6, 02:15 UTCJul 6, 03:15 UTC1h 0m
2026-07-06 CSN357 - Jul 6, 00:45 UTCJul 6, 01:05 UTC20m
2026-07-05 CSN3044 - Jul 5, 14:45 UTCJul 5, 15:00 UTC15m
2026-07-05 CSN3044 - Jul 5, 11:35 UTCJul 5, 12:00 UTC25m
2026-07-05 CSN3043 - Jul 5, 06:40 UTCJul 5, 10:20 UTC3h 40m
2026-07-05 CSN340 - Jul 5, 01:35 UTCJul 5, 02:05 UTC30m
2026-07-04 CSN339 - Jul 4, 14:15 UTCJul 4, 14:55 UTC40m
2026-07-04 CSN358 - Jul 4, 04:50 UTCJul 4, 05:20 UTC30m
2026-07-04 CSN357 - Jul 4, 02:35 UTCJul 4, 03:10 UTC35m
2026-07-03 CSN3044 - Jul 3, 19:35 UTCJul 3, 19:45 UTC10m
2026-07-03 CSN3044 - Jul 3, 16:30 UTCJul 3, 16:55 UTC25m
2026-07-03 CSN3043 - Jul 3, 11:55 UTCJul 3, 15:15 UTC3h 20m
2026-07-03 CSN340 - Jul 3, 01:35 UTCJul 3, 01:50 UTC15m
2026-07-03 CSN340 - Jul 3, 01:00 UTCJul 3, 01:30 UTC30m
2026-07-02 CSN339 - Jul 2, 12:00 UTCJul 2, 12:35 UTC35m
2026-07-02 CSN358 - Jul 2, 04:40 UTCJul 2, 06:15 UTC1h 35m
2026-07-02 CSN357 - Jul 2, 01:00 UTCJul 2, 01:55 UTC55m
2026-07-01 CSN3040 - Jul 1, 14:15 UTCJul 1, 14:45 UTC30m
2026-07-01 CSN3040 - Jul 1, 11:05 UTCJul 1, 11:30 UTC25m
2026-07-01 CSN3039 - Jul 1, 06:15 UTCJul 1, 09:35 UTC3h 20m
2026-07-01 CSN372 HAN → CAN Jul 1, 01:35 UTCJul 1, 02:00 UTC25m
2026-06-30 CSN371 - Jun 30, 15:50 UTCJun 30, 16:50 UTC1h 0m
2026-06-29 CSN3497 CAN → KMG Jun 29, 23:34 UTCJun 30, 00:30 UTC55m
2026-06-27 CSN363 - Jun 27, 08:20 UTCJun 27, 09:15 UTC55m
2026-06-26 CSN362 BKK → CAN Jun 26, 01:24 UTCJun 26, 03:05 UTC1h 40m
2026-06-25 CSN361 CAN → BKK Jun 25, 08:30 UTCJun 25, 17:09 UTC8h 40m
2026-06-25 CSN8099 - Jun 25, 04:54 UTCJun 25, 07:00 UTC2h 5m
2026-06-24 CSN340 - Jun 24, 00:59 UTCJun 24, 01:44 UTC45m
2026-06-23 CSN339 - Jun 23, 12:05 UTCJun 23, 12:40 UTC35m
2026-06-22 CSN364 - Jun 22, 12:10 UTCJun 22, 13:44 UTC1h 35m
2026-06-22 CSN363 - Jun 22, 08:19 UTCJun 22, 10:19 UTC2h 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-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 15h ago.
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, CSN339, CSN340, CSN351.