Apparatus

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sensors Mode-S transponder

78147B

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1153 · BOEING 737-800

Hex
78147B
Octal
36012173
Decimal
7,869,563
Country
CN
Tail
B-1153
Type
B738
No current signal · last broadcast Jul 26, 18:15 UTC
Flights observed
211
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 18:15 UTC

Last known position

Most recent position reported by Mode-S 78147B.

Country allocation

The ICAO 24-bit address 78147B 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
CSN3735 China Southern Airlines 14 2026-07-26
CSN8285 China Southern Airlines 13 2026-07-22
CSN3736 China Southern Airlines 10 2026-07-26
CSN8701 - 8 2026-07-24
CSN3881 - 8 2026-07-12
CSN3771 - 8 2026-06-22
CSN3733 China Southern Airlines 8 2026-07-24
CSN3791 - 7 2026-06-24
CSN3689 - 7 2026-07-09
CSN8437 - 5 2026-07-02
CSN5777 - 5 2026-06-23
CSN5733 China Southern Airlines 5 2026-07-23
CSN3690 - 5 2026-07-08
CSN8474 China Southern Airlines 4 2026-07-22
CSN8473 - 4 2026-07-22
CSN8417 - 4 2026-07-02
CSN6906 China Southern Airlines 4 2026-06-25
CSN6905 - 4 2026-06-29
CSN5844 - 4 2026-07-18
CSN5118 China Southern Airlines 4 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSN3736 PKX → ZUH Jul 26, 18:00 UTCJul 26, 18:15 UTC15m
2026-07-26 CSN3735 ZUH → PKX Jul 26, 11:45 UTCJul 26, 12:00 UTC15m
2026-07-26 - - Jul 26, 00:05 UTCJul 26, 00:15 UTC10m
2026-07-25 CSN3755 ZUH → PVG Jul 25, 08:30 UTCJul 25, 08:45 UTC15m
2026-07-25 CSN3767 ZUH → TFU Jul 25, 01:10 UTCJul 25, 01:20 UTC10m
2026-07-24 CSN8701 - Jul 24, 11:05 UTCJul 24, 11:15 UTC10m
2026-07-24 CSN3734 PEK → ZUH Jul 24, 07:00 UTCJul 24, 07:30 UTC30m
2026-07-24 CSN3733 ZUH → PEK Jul 24, 02:25 UTCJul 24, 02:35 UTC10m
2026-07-23 CSN5733 CAN → CQW Jul 23, 13:40 UTCJul 23, 13:55 UTC15m
2026-07-23 CSN3729 CAN → LZH Jul 23, 06:50 UTCJul 23, 07:00 UTC10m
2026-07-23 CSN3465 SZX → CKG Jul 23, 00:40 UTCJul 23, 00:50 UTC10m
2026-07-22 CSN8474 SGN → SZX Jul 22, 21:35 UTCJul 22, 21:55 UTC20m
2026-07-22 CSN8473 - Jul 22, 15:20 UTCJul 22, 15:30 UTC10m
2026-07-22 CSN8285 ZUH → CKG Jul 22, 00:35 UTCJul 22, 00:45 UTC10m
2026-07-21 CSN3645 - Jul 21, 12:00 UTCJul 21, 12:10 UTC10m
2026-07-21 CSN3731 ZUH → PEK Jul 21, 01:00 UTCJul 21, 01:10 UTC10m
2026-07-20 CSN3733 - Jul 20, 02:30 UTCJul 20, 02:45 UTC15m
2026-07-20 CSN5734 - Jul 20, 00:55 UTCJul 20, 01:05 UTC10m
2026-07-19 CSN5733 CAN → CQW Jul 19, 13:40 UTCJul 19, 13:55 UTC15m
2026-07-19 CSN3729 CAN → LZH Jul 19, 07:00 UTCJul 19, 07:15 UTC15m
2026-07-19 CSN3465 SZX → CKG Jul 19, 00:40 UTCJul 19, 00:50 UTC10m
2026-07-18 CSN3956 HAK → SZX Jul 18, 16:30 UTCJul 18, 16:40 UTC10m
2026-07-18 CSN3955 - Jul 18, 13:15 UTCJul 18, 13:25 UTC10m
2026-07-18 CSN5844 - Jul 18, 10:10 UTCJul 18, 11:15 UTC1h 5m
2026-07-17 CSN8474 - Jul 17, 21:39 UTCJul 17, 21:55 UTC15m
2026-07-17 CSN8473 - Jul 17, 15:10 UTCJul 17, 15:20 UTC10m
2026-07-17 CSN3828 - Jul 17, 12:19 UTCJul 17, 12:30 UTC10m
2026-07-17 CSN3827 - Jul 17, 07:20 UTCJul 17, 07:30 UTC10m
2026-07-17 CSN8285 - Jul 17, 00:30 UTCJul 17, 00:45 UTC15m
2026-07-16 CSN8701 - Jul 16, 11:20 UTCJul 16, 11:30 UTC10m
2026-07-16 CSN3734 - Jul 16, 09:15 UTCJul 16, 09:35 UTC20m
2026-07-16 CSN3733 - Jul 16, 02:35 UTCJul 16, 02:50 UTC15m
2026-07-16 CSN5734 - Jul 16, 00:50 UTCJul 16, 01:10 UTC20m
2026-07-15 CSN5733 - Jul 15, 17:00 UTCJul 15, 17:15 UTC15m
2026-07-15 CSN3729 - Jul 15, 10:00 UTCJul 15, 10:15 UTC15m
2026-07-15 CSN3465 - Jul 15, 00:45 UTCJul 15, 00:55 UTC10m
2026-07-14 CSN3956 - Jul 14, 16:15 UTCJul 14, 16:35 UTC20m
2026-07-14 CSN3955 - Jul 14, 13:35 UTCJul 14, 13:45 UTC10m
2026-07-14 CSN5844 - Jul 14, 10:15 UTCJul 14, 11:15 UTC1h 0m
2026-07-13 CSN8474 - Jul 13, 22:00 UTCJul 13, 22:10 UTC10m
2026-07-13 CSN8473 - Jul 13, 15:35 UTCJul 13, 15:50 UTC15m
2026-07-13 CSN3828 - Jul 13, 12:20 UTCJul 13, 12:35 UTC15m
2026-07-13 CSN3827 - Jul 13, 07:30 UTCJul 13, 07:40 UTC10m
2026-07-13 CSN3466 - Jul 13, 05:15 UTCJul 13, 05:25 UTC10m
2026-07-13 CSN8285 - Jul 13, 00:25 UTCJul 13, 00:35 UTC10m
2026-07-12 CSN3882 - Jul 12, 14:15 UTCJul 12, 14:40 UTC25m
2026-07-12 CSN3881 - Jul 12, 09:30 UTCJul 12, 09:45 UTC15m
2026-07-11 CSN3734 - Jul 11, 07:10 UTCJul 11, 07:25 UTC15m
2026-07-11 CSN3733 - Jul 11, 02:25 UTCJul 11, 02:40 UTC15m
2026-07-10 CSN3736 - Jul 10, 13:45 UTCJul 10, 14:00 UTC15m

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-1153 page for operator, model, and routing details .

Mode-S 78147B frequently asked

What is Mode-S code 78147B?
78147B is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1153.
Where is Mode-S 78147B registered?
Mode-S code 78147B is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78147B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78147B, octal 36012173, decimal 7,869,563.
What flights does 78147B operate?
Mode-S 78147B has broadcast 20 distinct callsigns, including CSN3735, CSN8285, CSN3736, CSN8701, CSN3881.