Apparatus

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sensors Mode-S transponder

7812E9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1376 · BOEING 737-800

Hex
7812E9
Octal
36011351
Decimal
7,869,161
Country
CN
Tail
B-1376
Type
B738
No current signal · last broadcast 2d ago
Flights observed
61
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 7812E9.

Country allocation

The ICAO 24-bit address 7812E9 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
CSZ8662 Shenzhen Airlines 3 2026-05-15
CSZ8536 Shenzhen Airlines 3 2026-04-29
CSZ9851 Shenzhen Airlines 2 2026-04-20
CSZ9451 Shenzhen Airlines 2 2026-05-16
CSZ9368 Shenzhen Airlines 2 2026-05-28
CSZ9303 Shenzhen Airlines 2 2026-05-20
CSZ9098 Shenzhen Airlines 2 2026-04-27
CSZ9097 Shenzhen Airlines 2 2026-04-27
CSZ9096 Shenzhen Airlines 2 2026-05-24
CSZ9095 Shenzhen Airlines 2 2026-05-24
CSZ8666 Shenzhen Airlines 2 2026-05-20
CSZ8665 Shenzhen Airlines 2 2026-05-09
CSZ8538 Shenzhen Airlines 2 2026-05-25
CSZ633 Shenzhen Airlines 2 2026-05-18
CSZ208 Shenzhen Airlines 2 2026-05-06
CSZ9945 Shenzhen Airlines 1 2026-04-16
CSZ9896 Shenzhen Airlines 1 2026-05-18
CSZ9895 Shenzhen Airlines 1 2026-05-17
CSZ9858 Shenzhen Airlines 1 2026-04-16
CSZ9807 Shenzhen Airlines 1 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 CSZ9368 FOC → NNG May 28, 09:55 UTCMay 28, 10:40 UTC45m
2026-05-28 CSZ9367 NNG → FOC May 28, 07:05 UTCMay 28, 07:20 UTC15m
2026-05-26 CSZ9807 SZX → CGO May 26, 04:35 UTCMay 26, 04:45 UTC10m
2026-05-25 CSZ8538 ZUH → WUX May 25, 03:55 UTCMay 25, 04:05 UTC10m
2026-05-24 CSZ9096 HKG → WUX May 24, 05:05 UTCMay 24, 06:00 UTC55m
2026-05-24 CSZ9095 WUX → HKG May 24, 03:15 UTCMay 24, 03:35 UTC20m
2026-05-22 CSZ8538 ZUH → WUX May 22, 04:15 UTCMay 22, 04:25 UTC10m
2026-05-21 CSZ9803 SZX → WUX May 21, 01:30 UTCMay 21, 01:40 UTC10m
2026-05-20 CSZ9303 SZX → CGO May 20, 04:35 UTCMay 20, 04:45 UTC11m
2026-05-20 CSZ8666 NTG → SZX May 20, 02:30 UTCMay 20, 02:45 UTC15m
2026-05-19 CSZ8661 SZX → NTG May 19, 01:00 UTCMay 19, 01:15 UTC15m
2026-05-18 CSZ634 ICN → SZX May 18, 08:10 UTCMay 18, 08:35 UTC25m
2026-05-18 CSZ633 SZX → ICN May 18, 06:25 UTCMay 18, 07:00 UTC35m
2026-05-18 CSZ633 SZX → ICN May 18, 03:50 UTCMay 18, 04:00 UTC10m
2026-05-18 CSZ9896 HFE → SZX May 18, 00:00 UTCMay 18, 00:20 UTC20m
2026-05-17 CSZ9895 SZX → KWE May 17, 15:15 UTCMay 17, 15:25 UTC10m
2026-05-16 CSZ9451 SZX → KMG May 16, 23:55 UTCMay 17, 00:05 UTC10m
2026-05-15 CSZ8931 - May 15, 23:55 UTCMay 16, 00:05 UTC10m
2026-05-15 CSZ8662 NTG → SZX May 15, 16:25 UTCMay 15, 16:40 UTC15m
2026-05-09 CSZ8665 SZX → NTG May 9, 13:40 UTCMay 9, 13:50 UTC10m
2026-05-09 CSZ9303 SZX → CGO May 9, 04:40 UTCMay 9, 04:50 UTC10m
2026-05-09 CSZ8666 NTG → SZX May 9, 02:40 UTCMay 9, 02:50 UTC10m
2026-05-07 CSZ8665 SZX → NTG May 7, 13:05 UTCMay 7, 13:15 UTC10m
2026-05-07 CSZ9232 - May 7, 07:05 UTCMay 7, 07:15 UTC10m
2026-05-06 CSZ9231 - May 6, 23:40 UTCMay 6, 23:50 UTC10m
2026-05-06 CSZ208 MNL → SZX May 6, 21:40 UTCMay 6, 22:00 UTC20m
2026-05-06 CSZ208 MNL → SZX May 6, 20:00 UTCMay 6, 20:35 UTC35m
2026-05-06 CSZ207 SZX → MNL May 6, 16:00 UTCMay 6, 17:50 UTC1h 49m
2026-05-06 CSZ9465 SZX → CKG May 6, 09:00 UTCMay 6, 09:10 UTC10m
2026-05-06 CSZ9516 PVG → SZX May 6, 06:55 UTCMay 6, 07:15 UTC20m
2026-05-06 CSZ9515 SZX → PVG May 6, 01:45 UTCMay 6, 01:55 UTC10m
2026-05-05 CSZ8662 NTG → SZX May 5, 15:25 UTCMay 5, 15:50 UTC25m
2026-05-04 CSZ9713 SHE → HFE May 4, 04:09 UTCMay 4, 07:10 UTC3h 0m
2026-05-03 CSZ9096 HKG → WUX May 3, 04:45 UTCMay 4, 04:15 UTC23h 30m
2026-05-03 CSZ9095 WUX → HKG May 3, 02:25 UTCMay 3, 02:50 UTC25m
2026-05-01 CSZ674 KIX → WUX May 1, 04:25 UTCMay 1, 05:10 UTC45m
2026-05-01 CSZ673 WUX → KIX May 1, 02:00 UTCMay 1, 02:45 UTC45m
2026-04-29 CSZ8536 ZUH → WUX Apr 29, 06:29 UTCApr 29, 06:39 UTC10m
2026-04-29 CSZ8535 WUX → ZUH Apr 29, 04:39 UTCApr 29, 04:55 UTC15m
2026-04-28 CSZ8536 ZUH → WUX Apr 28, 04:15 UTCApr 28, 04:25 UTC10m
2026-04-27 CSZ9098 KIX → SZX Apr 27, 05:20 UTCApr 27, 05:45 UTC25m
2026-04-27 CSZ9097 SZX → KIX Apr 27, 03:30 UTCApr 27, 03:45 UTC15m
2026-04-26 CSZ8536 ZUH → WUX Apr 26, 04:15 UTCApr 26, 04:25 UTC10m
2026-04-25 CSZ9098 KIX → SZX Apr 25, 05:25 UTCApr 25, 06:20 UTC55m
2026-04-25 CSZ9097 SZX → KIX Apr 25, 03:25 UTCApr 25, 03:40 UTC15m
2026-04-22 CSZ9368 FOC → NNG Apr 22, 07:10 UTCApr 22, 10:40 UTC3h 30m
2026-04-22 CSZ9366 FOC → NNG Apr 22, 00:50 UTCApr 22, 04:10 UTC3h 20m
2026-04-20 CSZ9851 SZX → PEK Apr 20, 11:30 UTCApr 20, 11:40 UTC10m
2026-04-20 CSZ9240 URC → SZX Apr 20, 09:30 UTCApr 20, 09:40 UTC10m
2026-04-20 CSZ9239 SZX → URC Apr 20, 02:25 UTCApr 20, 02:40 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-1376 page for operator, model, and routing details .

Mode-S 7812E9 frequently asked

What is Mode-S code 7812E9?
7812E9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1376.
Where is Mode-S 7812E9 registered?
Mode-S code 7812E9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812E9 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812E9, octal 36011351, decimal 7,869,161.
What flights does 7812E9 operate?
Mode-S 7812E9 has broadcast 20 distinct callsigns, including CSZ8662, CSZ8536, CSZ9851, CSZ9451, CSZ9368.