Apparatus

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sensors Mode-S transponder

7811AA

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1477 · BOEING 737-800

Hex
7811AA
Octal
36010652
Decimal
7,868,842
Country
CN
Tail
B-1477
Type
B738
No current signal · last broadcast 1d ago
Flights observed
69
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7811AA.

Country allocation

The ICAO 24-bit address 7811AA 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
CSZ9368 Shenzhen Airlines 5 2026-05-11
CSZ8861 Shenzhen Airlines 4 2026-06-01
CSZ9451 Shenzhen Airlines 3 2026-06-01
CSZ9366 Shenzhen Airlines 3 2026-05-06
CSZ8862 Shenzhen Airlines 3 2026-05-31
CSZ8663 Shenzhen Airlines 3 2026-04-27
CSZ8536 Shenzhen Airlines 3 2026-04-22
CSZ9323 Shenzhen Airlines 2 2026-06-01
CSZ8966 Shenzhen Airlines 2 2026-05-28
CSZ8919 Shenzhen Airlines 2 2026-05-26
CSZ208 Shenzhen Airlines 2 2026-05-01
CSZ9957 Shenzhen Airlines 1 2026-04-27
CSZ9919 Shenzhen Airlines 1 2026-04-24
CSZ9896 Shenzhen Airlines 1 2026-04-24
CSZ9895 Shenzhen Airlines 1 2026-04-23
CSZ9890 Shenzhen Airlines 1 2026-04-17
CSZ9850 Shenzhen Airlines 1 2026-05-24
CSZ9849 Shenzhen Airlines 1 2026-05-24
CSZ9848 Shenzhen Airlines 1 2026-05-29
CSZ9844 Shenzhen Airlines 1 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 CSZ8861 SZX → KHN Jun 1, 14:10 UTCJun 1, 14:20 UTC10m
2026-06-01 CSZ9323 SZX → SYX Jun 1, 08:00 UTCJun 1, 08:10 UTC10m
2026-06-01 CSZ9323 SZX → SYX Jun 1, 07:15 UTCJun 1, 07:25 UTC10m
2026-06-01 CSZ9451 SZX → KMG Jun 1, 00:00 UTCJun 1, 00:50 UTC50m
2026-05-31 CSZ8862 KHN → SZX May 31, 15:05 UTCMay 31, 15:20 UTC15m
2026-05-30 CSZ8861 SZX → KHN May 30, 14:05 UTCMay 30, 14:15 UTC10m
2026-05-30 CSZ9403 SZX → CTU May 30, 00:50 UTCMay 30, 01:00 UTC10m
2026-05-29 CSZ9848 NKG → SZX May 29, 14:35 UTCMay 29, 15:15 UTC40m
2026-05-29 CSZ9451 SZX → KMG May 29, 00:40 UTCMay 29, 00:50 UTC10m
2026-05-28 CSZ9451 SZX → KMG May 28, 23:55 UTCMay 29, 00:10 UTC15m
2026-05-28 CSZ9526 PVG → SZX May 28, 13:00 UTCMay 28, 13:50 UTC50m
2026-05-28 CSZ9525 SZX → PVG May 28, 07:40 UTCMay 28, 07:50 UTC10m
2026-05-28 CSZ8966 NGB → SZX May 28, 05:30 UTCMay 28, 05:50 UTC20m
2026-05-28 CSZ8965 SZX → NGB May 28, 00:55 UTCMay 28, 01:05 UTC10m
2026-05-27 CSZ240 SIN → SZX May 27, 05:29 UTCMay 27, 05:55 UTC25m
2026-05-27 CSZ239 SZX → SIN May 27, 03:39 UTCMay 27, 03:54 UTC15m
2026-05-26 CSZ9528 PVG → SZX May 26, 14:24 UTCMay 26, 14:45 UTC20m
2026-05-26 CSZ9527 SZX → PVG May 26, 08:30 UTCMay 26, 08:39 UTC10m
2026-05-26 CSZ8920 YNT → SZX May 26, 06:49 UTCMay 26, 07:10 UTC20m
2026-05-26 CSZ8919 SZX → YNT May 26, 01:10 UTCMay 26, 05:45 UTC4h 35m
2026-05-26 CSZ8919 SZX → YNT May 26, 00:19 UTCMay 26, 00:29 UTC10m
2026-05-25 CSZ8862 KHN → SZX May 25, 15:00 UTCMay 25, 15:10 UTC10m
2026-05-24 CSZ8861 SZX → KHN May 24, 15:45 UTCMay 24, 15:55 UTC10m
2026-05-24 CSZ9850 NKG → SZX May 24, 13:15 UTCMay 24, 13:40 UTC25m
2026-05-24 CSZ9849 SZX → NKG May 24, 08:25 UTCMay 24, 08:35 UTC10m
2026-05-24 CSZ9844 NKG → SZX May 24, 06:10 UTCMay 24, 06:55 UTC45m
2026-05-22 CSZ9342 - May 22, 02:25 UTCMay 22, 10:50 UTC8h 25m
2026-05-21 CSZ9389 CGO → SHE May 21, 07:40 UTCMay 22, 02:30 UTC18h 50m
2026-05-11 CSZ9368 FOC → NNG May 11, 07:00 UTCMay 11, 10:35 UTC3h 35m
2026-05-10 CSZ9368 FOC → NNG May 10, 11:35 UTCMay 11, 10:30 UTC22h 55m
2026-05-10 CSZ9368 FOC → NNG May 10, 08:35 UTCMay 11, 07:00 UTC22h 25m
2026-05-10 CSZ9368 FOC → NNG May 10, 08:25 UTCMay 10, 11:55 UTC3h 30m
2026-05-06 CSZ9366 FOC → NNG May 6, 03:30 UTCMay 6, 03:50 UTC20m
2026-05-06 CSZ9365 NNG → FOC May 6, 00:15 UTCMay 6, 00:25 UTC10m
2026-05-05 CSZ9366 FOC → NNG May 5, 03:50 UTCMay 6, 00:25 UTC20h 35m
2026-05-05 CSZ9366 FOC → NNG May 5, 00:15 UTCMay 5, 04:10 UTC3h 55m
2026-05-02 CSZ9368 FOC → NNG May 2, 10:00 UTCMay 2, 10:30 UTC30m
2026-05-01 CSZ9397 SZX → NNG May 1, 23:45 UTCMay 2, 00:00 UTC15m
2026-05-01 CSZ208 MNL → SZX May 1, 20:45 UTCMay 1, 21:05 UTC20m
2026-05-01 CSZ208 MNL → SZX May 1, 19:00 UTCMay 1, 19:35 UTC35m
2026-05-01 CSZ207 SZX → MNL May 1, 15:30 UTCMay 1, 17:15 UTC1h 45m
2026-05-01 CSZ8966 NGB → SZX May 1, 05:40 UTCMay 1, 06:05 UTC25m
2026-04-30 CSZ9208 XIY → SZX Apr 30, 16:40 UTCApr 30, 16:50 UTC10m
2026-04-30 CSZ8664 TYN → NTG Apr 30, 09:00 UTCApr 30, 09:15 UTC15m
2026-04-27 CSZ8861 SZX → KHN Apr 27, 14:15 UTCApr 27, 14:25 UTC10m
2026-04-27 CSZ8663 NTG → TYN Apr 27, 08:20 UTCApr 27, 11:40 UTC3h 20m
2026-04-27 CSZ8663 NTG → TYN Apr 27, 07:25 UTCApr 27, 07:35 UTC10m
2026-04-27 CSZ9957 SZX → YBP Apr 27, 01:10 UTCApr 27, 01:20 UTC10m
2026-04-26 CSZ8934 - Apr 26, 16:30 UTCApr 26, 16:50 UTC20m
2026-04-26 CSZ9304 CGO → SZX Apr 26, 10:15 UTCApr 26, 10:35 UTC20m

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-1477 page for operator, model, and routing details .

Mode-S 7811AA frequently asked

What is Mode-S code 7811AA?
7811AA is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1477.
Where is Mode-S 7811AA registered?
Mode-S code 7811AA is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7811AA broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7811AA, octal 36010652, decimal 7,868,842.
What flights does 7811AA operate?
Mode-S 7811AA has broadcast 20 distinct callsigns, including CSZ9368, CSZ8861, CSZ9451, CSZ9366, CSZ8862.