Apparatus

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sensors Mode-S transponder

7811AC

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1479 · BOEING 737-800

Hex
7811AC
Octal
36010654
Decimal
7,868,844
Country
CN
Tail
B-1479
Type
B738
No current signal · last broadcast 6h ago
Flights observed
63
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 7811AC.

Country allocation

The ICAO 24-bit address 7811AC 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
CSZ9451 Shenzhen Airlines 5 2026-05-21
CSZ9304 Shenzhen Airlines 3 2026-05-26
CSZ8862 Shenzhen Airlines 3 2026-05-24
CSZ9808 Shenzhen Airlines 2 2026-05-31
CSZ9303 Shenzhen Airlines 2 2026-05-26
CSZ9126 Shenzhen Airlines 2 2026-04-19
CSZ8861 Shenzhen Airlines 2 2026-05-15
CSZ8666 Shenzhen Airlines 2 2026-05-26
CSZ8664 Shenzhen Airlines 2 2026-05-11
CSZ8661 Shenzhen Airlines 2 2026-05-18
CSZ9958 Shenzhen Airlines 1 2026-05-25
CSZ9949 Shenzhen Airlines 1 2026-04-20
CSZ9938 Shenzhen Airlines 1 2026-04-26
CSZ9937 Shenzhen Airlines 1 2026-04-26
CSZ9930 Shenzhen Airlines 1 2026-04-15
CSZ9848 Shenzhen Airlines 1 2026-04-22
CSZ9847 Shenzhen Airlines 1 2026-04-22
CSZ9813 Shenzhen Airlines 1 2026-05-03
CSZ9804 Shenzhen Airlines 1 2026-04-28
CSZ9638 Shenzhen Airlines 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CSZ9532 PVG → CAN Jun 2, 16:15 UTCJun 2, 16:40 UTC25m
2026-06-02 CSZ9531 CAN → PVG Jun 2, 11:00 UTCJun 2, 11:10 UTC10m
2026-06-02 CSZ9131 SZX → TYN Jun 2, 01:00 UTCJun 2, 01:10 UTC10m
2026-06-01 CSZ9526 PVG → SZX Jun 1, 13:10 UTCJun 1, 13:30 UTC20m
2026-06-01 CSZ8966 NGB → SZX Jun 1, 05:20 UTCJun 1, 05:45 UTC25m
2026-05-31 CSZ9808 CGO → SZX May 31, 15:55 UTCMay 31, 16:20 UTC25m
2026-05-30 CSZ8538 ZUH → WUX May 30, 03:35 UTCMay 30, 03:45 UTC10m
2026-05-29 CSZ9098 KIX → SZX May 29, 05:30 UTCMay 29, 06:25 UTC55m
2026-05-29 CSZ9097 SZX → KIX May 29, 03:20 UTCMay 29, 03:40 UTC20m
2026-05-26 CSZ9304 CGO → SZX May 26, 10:10 UTCMay 26, 10:20 UTC10m
2026-05-26 CSZ9303 SZX → CGO May 26, 04:35 UTCMay 26, 04:50 UTC15m
2026-05-26 CSZ8666 NTG → SZX May 26, 02:15 UTCMay 26, 02:35 UTC20m
2026-05-25 CSZ8665 SZX → NTG May 25, 13:05 UTCMay 25, 13:15 UTC10m
2026-05-25 CSZ9324 SYX → SZX May 25, 10:30 UTCMay 25, 10:45 UTC15m
2026-05-25 CSZ9958 YBP → SZX May 25, 04:50 UTCMay 25, 05:00 UTC10m
2026-05-24 CSZ8862 KHN → SZX May 24, 15:00 UTCMay 24, 15:10 UTC10m
2026-05-21 CSZ9451 SZX → KMG May 21, 23:55 UTCMay 22, 00:05 UTC10m
2026-05-20 CSZ9096 HKG → WUX May 20, 04:45 UTCMay 20, 05:00 UTC15m
2026-05-20 CSZ9095 WUX → HKG May 20, 02:35 UTCMay 20, 02:50 UTC15m
2026-05-18 CSZ8698 ZUH → NTG May 18, 09:10 UTCMay 18, 09:20 UTC10m
2026-05-18 CSZ8697 NTG → ZUH May 18, 06:05 UTCMay 18, 06:25 UTC20m
2026-05-18 CSZ8661 SZX → NTG May 18, 00:45 UTCMay 18, 00:55 UTC10m
2026-05-15 CSZ8861 SZX → KHN May 15, 15:45 UTCMay 15, 15:55 UTC10m
2026-05-15 CSZ9304 CGO → SZX May 15, 14:10 UTCMay 15, 14:25 UTC15m
2026-05-15 CSZ9303 SZX → CGO May 15, 05:35 UTCMay 15, 05:45 UTC10m
2026-05-15 CSZ8666 NTG → SZX May 15, 02:55 UTCMay 15, 03:05 UTC10m
2026-05-14 CSZ8661 SZX → NTG May 14, 01:00 UTCMay 14, 01:10 UTC10m
2026-05-13 CSZ902 - May 13, 15:10 UTCMay 13, 15:20 UTC10m
2026-05-11 CSZ8664 TYN → NTG May 11, 08:30 UTCMay 11, 08:45 UTC15m
2026-05-11 CSZ8862 KHN → SZX May 11, 00:10 UTCMay 11, 00:30 UTC20m
2026-05-06 CSZ8861 SZX → KHN May 6, 14:25 UTCMay 6, 14:35 UTC10m
2026-05-06 CSZ9325 SZX → SYX May 6, 07:50 UTCMay 6, 08:05 UTC15m
2026-05-06 CSZ9451 SZX → KMG May 6, 01:01 UTCMay 6, 01:10 UTC10m
2026-05-05 CSZ9808 CGO → SZX May 5, 16:20 UTCMay 5, 16:40 UTC20m
2026-05-03 CSZ9813 SZX → SHA May 3, 13:40 UTCMay 3, 13:50 UTC10m
2026-05-02 CSZ9323 SZX → SYX May 2, 07:00 UTCMay 2, 07:10 UTC10m
2026-05-02 CSZ9451 SZX → KMG May 2, 00:05 UTCMay 2, 00:20 UTC15m
2026-05-01 CSZ8934 - May 1, 16:45 UTCMay 1, 16:55 UTC10m
2026-05-01 CSZ8933 - May 1, 12:20 UTCMay 1, 12:30 UTC10m
2026-05-01 CSZ9405 SZX → CTU May 1, 04:20 UTCMay 1, 04:30 UTC10m
2026-04-28 CSZ9305 SZX → CGO Apr 28, 10:05 UTCApr 28, 10:15 UTC10m
2026-04-28 CSZ9804 WUX → SZX Apr 28, 08:20 UTCApr 28, 08:30 UTC10m
2026-04-27 - - Apr 27, 09:35 UTCApr 27, 09:45 UTC10m
2026-04-27 CSZ9638 CGQ → SZX Apr 27, 02:50 UTCApr 27, 07:05 UTC4h 15m
2026-04-26 CSZ9938 CSX → SZX Apr 26, 16:20 UTCApr 26, 16:35 UTC15m
2026-04-26 CSZ9937 SZX → CSX Apr 26, 10:30 UTCApr 26, 10:40 UTC10m
2026-04-26 CSZ8664 TYN → NTG Apr 26, 08:35 UTCApr 26, 08:55 UTC20m
2026-04-26 CSZ8862 KHN → SZX Apr 26, 00:20 UTCApr 26, 00:30 UTC10m
2026-04-23 CSZ9520 PVG → SZX Apr 23, 17:15 UTCApr 23, 17:25 UTC10m
2026-04-22 CSZ9848 NKG → SZX Apr 22, 14:45 UTCApr 22, 15:10 UTC25m

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-1479 page for operator, model, and routing details .

Mode-S 7811AC frequently asked

What is Mode-S code 7811AC?
7811AC is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1479.
Where is Mode-S 7811AC registered?
Mode-S code 7811AC is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7811AC broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7811AC, octal 36010654, decimal 7,868,844.
What flights does 7811AC operate?
Mode-S 7811AC has broadcast 20 distinct callsigns, including CSZ9451, CSZ9304, CSZ8862, CSZ9808, CSZ9303.