Apparatus

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sensors Mode-S transponder

781C78

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-326G · AIRBUS A-320neo

Hex
781C78
Octal
36016170
Decimal
7,871,608
Country
CN
Tail
B-326G
Type
A20N
No current signal · last broadcast 16d ago
Flights observed
106
Distinct callsigns
20
Country
CN
Last broadcast
16d ago

Last known position

Most recent position reported by Mode-S 781C78.

Country allocation

The ICAO 24-bit address 781C78 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
CSZ9301 Shenzhen Airlines 7 2026-07-25
CSZ8983 - 6 2026-07-25
CSZ9457 Shenzhen Airlines 5 2026-06-12
CSZ9302 Shenzhen Airlines 5 2026-07-25
CSZ9203 Shenzhen Airlines 5 2026-07-24
CSZ9748 - 4 2026-07-18
CSZ9624 - 4 2026-07-19
CSZ9623 - 4 2026-07-14
CSZ9723 - 3 2026-07-21
CSZ9652 - 3 2026-07-10
CSZ9453 Shenzhen Airlines 3 2026-06-08
CSZ9235 Shenzhen Airlines 3 2026-06-11
CSZ9126 - 3 2026-07-06
CSZ8970 - 3 2026-06-18
CSZ9747 - 2 2026-07-16
CSZ9727 - 2 2026-07-09
CSZ9711 - 2 2026-07-10
CSZ9606 - 2 2026-07-06
CSZ9534 Shenzhen Airlines 2 2026-05-31
CSZ9455 - 2 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSZ8984 - Jul 25, 15:00 UTCJul 25, 15:10 UTC10m
2026-07-25 CSZ8983 - Jul 25, 08:10 UTCJul 25, 09:00 UTC50m
2026-07-25 CSZ9302 CGO → SZX Jul 25, 06:10 UTCJul 25, 06:35 UTC25m
2026-07-25 CSZ9301 SZX → CGO Jul 25, 00:05 UTCJul 25, 00:15 UTC10m
2026-07-24 CSZ8996 HAK → CAN Jul 24, 16:25 UTCJul 24, 16:35 UTC10m
2026-07-24 CSZ8995 CAN → HAK Jul 24, 10:55 UTCJul 24, 11:10 UTC15m
2026-07-24 CSZ9203 SZX → XIY Jul 24, 02:45 UTCJul 24, 03:05 UTC20m
2026-07-21 CSZ9723 - Jul 21, 06:10 UTCJul 22, 01:50 UTC19h 40m
2026-07-21 CSZ9723 - Jul 21, 02:05 UTCJul 22, 01:50 UTC23h 45m
2026-07-21 CSZ9723 - Jul 21, 01:45 UTCJul 21, 16:10 UTC14h 25m
2026-07-20 CSZ9605 CAN → JDZ Jul 20, 12:20 UTCJul 20, 12:35 UTC15m
2026-07-20 CSZ9239 - Jul 20, 02:20 UTCJul 20, 02:40 UTC20m
2026-07-19 CSZ9234 - Jul 19, 14:50 UTCJul 19, 15:00 UTC10m
2026-07-19 CSZ9233 - Jul 19, 07:25 UTCJul 19, 07:45 UTC20m
2026-07-19 CSZ9624 - Jul 19, 05:20 UTCJul 19, 05:40 UTC20m
2026-07-18 CSZ9748 - Jul 18, 13:05 UTCJul 19, 02:40 UTC13h 35m
2026-07-17 CSZ9748 - Jul 17, 13:20 UTCJul 17, 13:40 UTC20m
2026-07-16 CSZ9748 - Jul 16, 14:05 UTCJul 17, 13:40 UTC23h 35m
2026-07-16 CSZ9747 - Jul 16, 01:40 UTCJul 16, 01:50 UTC10m
2026-07-15 CSZ9748 - Jul 15, 09:00 UTCJul 15, 13:25 UTC4h 25m
2026-07-15 CSZ9747 - Jul 15, 01:35 UTCJul 15, 01:50 UTC15m
2026-07-14 CSZ9623 - Jul 14, 12:10 UTCJul 14, 12:30 UTC20m
2026-07-14 CSZ9623 - Jul 14, 09:55 UTCJul 14, 10:10 UTC15m
2026-07-13 CSZ9237 - Jul 13, 23:40 UTCJul 13, 23:50 UTC10m
2026-07-13 CSZ9204 - Jul 13, 09:00 UTCJul 13, 09:10 UTC10m
2026-07-13 CSZ9203 - Jul 13, 02:30 UTCJul 13, 02:45 UTC15m
2026-07-12 CSZ9416 - Jul 12, 16:05 UTCJul 12, 16:25 UTC20m
2026-07-12 CSZ9494 - Jul 12, 10:05 UTCJul 12, 10:25 UTC20m
2026-07-11 - - Jul 11, 03:45 UTCJul 11, 03:55 UTC10m
2026-07-10 CSZ9652 - Jul 10, 13:05 UTCJul 11, 01:35 UTC12h 30m
2026-07-10 CSZ9711 - Jul 10, 02:25 UTCJul 11, 01:35 UTC23h 10m
2026-07-09 CSZ9727 - Jul 9, 06:35 UTCJul 9, 13:55 UTC7h 20m
2026-07-07 CSZ9213 - Jul 7, 16:05 UTCJul 7, 16:15 UTC10m
2026-07-07 CSZ9239 - Jul 7, 05:55 UTCJul 7, 06:05 UTC10m
2026-07-06 CSZ9126 - Jul 6, 17:00 UTCJul 6, 17:15 UTC15m
2026-07-06 CSZ9126 - Jul 6, 14:20 UTCJul 6, 14:35 UTC15m
2026-07-06 CSZ9125 - Jul 6, 07:15 UTCJul 6, 07:30 UTC15m
2026-07-06 CSZ9606 - Jul 6, 04:55 UTCJul 6, 05:20 UTC25m
2026-07-06 CSZ9606 - Jul 6, 02:20 UTCJul 6, 02:35 UTC15m
2026-07-05 CSZ8309 - Jul 5, 10:40 UTCJul 5, 10:55 UTC15m
2026-07-05 - - Jul 5, 09:10 UTCJul 5, 09:35 UTC25m
2026-07-04 CSZ9652 - Jul 4, 02:20 UTCJul 4, 02:30 UTC10m
2026-07-02 CSZ9711 - Jul 2, 15:25 UTCJul 3, 02:05 UTC10h 40m
2026-07-02 CSZ8309 - Jul 2, 11:15 UTCJul 2, 11:25 UTC10m
2026-06-30 CSZ9652 - Jun 30, 14:20 UTCJul 1, 01:35 UTC11h 15m
2026-06-23 CSZ9213 - Jun 23, 11:45 UTCJun 23, 11:59 UTC15m
2026-06-23 CSZ9203 - Jun 23, 02:40 UTCJun 23, 02:55 UTC15m
2026-06-22 CSZ8983 - Jun 22, 08:10 UTCJun 22, 09:14 UTC1h 5m
2026-06-22 CSZ9302 - Jun 22, 06:15 UTCJun 22, 06:25 UTC10m
2026-06-22 CSZ9301 - Jun 22, 00:10 UTCJun 22, 00:24 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-326G page for operator, model, and routing details .

Mode-S 781C78 frequently asked

What is Mode-S code 781C78?
781C78 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-326G.
Where is Mode-S 781C78 registered?
Mode-S code 781C78 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781C78 broadcasting right now?
No active broadcast right now. Last signal was 16d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781C78, octal 36016170, decimal 7,871,608.
What flights does 781C78 operate?
Mode-S 781C78 has broadcast 20 distinct callsigns, including CSZ9301, CSZ8983, CSZ9457, CSZ9302, CSZ9203.