Apparatus

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sensors Mode-S transponder

7812E8

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1377 · BOEING 737-800

Hex
7812E8
Octal
36011350
Decimal
7,869,160
Country
CN
Tail
B-1377
Type
B738
Broadcasting now · callsign CSZ9920 · 1,075 ft
Flights observed
100
Distinct callsigns
20
Country
CN
Last broadcast
13h ago

Current position

7812E8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 7812E8 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 6 2026-05-30
CSZ9323 Shenzhen Airlines 3 2026-05-26
CSZ8662 Shenzhen Airlines 3 2026-05-29
CSZ9526 Shenzhen Airlines 2 2026-05-14
CSZ9522 - 2 2026-04-17
CSZ9457 Shenzhen Airlines 2 2026-05-15
CSZ9454 Shenzhen Airlines 2 2026-05-02
CSZ9453 Shenzhen Airlines 2 2026-05-02
CSZ9324 Shenzhen Airlines 2 2026-05-08
CSZ9130 Shenzhen Airlines 2 2026-05-13
CSZ9110 Shenzhen Airlines 2 2026-05-02
CSZ8966 Shenzhen Airlines 2 2026-05-15
CSZ8932 - 2 2026-05-14
CSZ8861 Shenzhen Airlines 2 2026-05-17
CSZ8698 Shenzhen Airlines 2 2026-05-11
CSZ8697 Shenzhen Airlines 2 2026-05-11
CSZ8661 Shenzhen Airlines 2 2026-05-11
CSZ8538 Shenzhen Airlines 2 2026-05-21
CSZ634 Shenzhen Airlines 2 2026-04-26
CSZ9946 Shenzhen Airlines 1 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CSZ9451 SZX → KMG May 30, 00:00 UTCMay 30, 00:45 UTC45m
2026-05-29 CSZ8662 NTG → SZX May 29, 17:30 UTCMay 29, 18:25 UTC55m
2026-05-26 CSZ8665 SZX → NTG May 26, 13:04 UTCMay 26, 13:19 UTC15m
2026-05-26 CSZ9323 SZX → SYX May 26, 06:44 UTCMay 26, 06:59 UTC15m
2026-05-25 CSZ9211 SZX → XIY May 25, 23:19 UTCMay 25, 23:35 UTC15m
2026-05-25 CSZ8968 NGB → SZX May 25, 14:15 UTCMay 25, 14:40 UTC25m
2026-05-25 CSZ8967 SZX → NGB May 25, 09:45 UTCMay 25, 09:55 UTC10m
2026-05-25 CSZ9804 WUX → SZX May 25, 08:00 UTCMay 25, 08:20 UTC20m
2026-05-24 CSZ628 ICN → WUX May 24, 05:40 UTCMay 24, 06:00 UTC20m
2026-05-24 CSZ627 WUX → ICN May 24, 03:20 UTCMay 24, 04:05 UTC45m
2026-05-23 CSZ9807 SZX → CGO May 23, 04:25 UTCMay 23, 04:35 UTC10m
2026-05-23 CSZ9816 SHA → SZX May 23, 02:55 UTCMay 23, 03:05 UTC10m
2026-05-22 CSZ674 KIX → WUX May 22, 04:35 UTCMay 22, 05:25 UTC50m
2026-05-22 CSZ673 WUX → KIX May 22, 02:20 UTCMay 22, 03:10 UTC50m
2026-05-21 CSZ8538 ZUH → WUX May 21, 04:30 UTCMay 21, 04:40 UTC10m
2026-05-20 CSZ8538 ZUH → WUX May 20, 04:05 UTCMay 20, 04:15 UTC10m
2026-05-18 CSZ9813 SZX → SHA May 18, 12:15 UTCMay 18, 12:25 UTC10m
2026-05-17 CSZ8861 SZX → KHN May 17, 14:25 UTCMay 17, 14:35 UTC10m
2026-05-17 CSZ9919 SZX → TAO May 17, 05:55 UTCMay 17, 06:05 UTC10m
2026-05-16 CSZ8925 - May 16, 23:30 UTCMay 16, 23:40 UTC10m
2026-05-16 CSZ9325 SZX → SYX May 16, 11:01 UTCMay 16, 11:16 UTC15m
2026-05-16 CSZ9451 SZX → KMG May 16, 00:05 UTCMay 16, 00:15 UTC10m
2026-05-15 CSZ9457 SZX → KMG May 15, 11:05 UTCMay 15, 11:15 UTC10m
2026-05-15 CSZ8966 NGB → SZX May 15, 08:30 UTCMay 15, 08:45 UTC15m
2026-05-15 CSZ8965 SZX → NGB May 15, 01:15 UTCMay 15, 01:25 UTC10m
2026-05-14 CSZ9526 PVG → SZX May 14, 14:30 UTCMay 14, 14:55 UTC25m
2026-05-14 CSZ9525 SZX → PVG May 14, 09:15 UTCMay 14, 09:25 UTC10m
2026-05-14 CSZ8932 - May 14, 05:55 UTCMay 14, 06:10 UTC15m
2026-05-13 CSZ9130 HET → SZX May 13, 10:40 UTCMay 13, 10:55 UTC15m
2026-05-13 CSZ9129 SZX → HET May 13, 03:25 UTCMay 13, 03:40 UTC15m
2026-05-12 CSZ8662 NTG → SZX May 12, 15:25 UTCMay 12, 15:50 UTC25m
2026-05-11 CSZ8698 ZUH → NTG May 11, 07:40 UTCMay 11, 07:55 UTC15m
2026-05-11 CSZ8697 NTG → ZUH May 11, 06:15 UTCMay 11, 06:30 UTC15m
2026-05-11 CSZ8661 SZX → NTG May 11, 01:00 UTCMay 11, 01:10 UTC10m
2026-05-10 CSZ9846 NKG → SZX May 10, 09:40 UTCMay 10, 10:00 UTC20m
2026-05-10 CSZ9845 SZX → NKG May 10, 04:00 UTCMay 10, 04:15 UTC15m
2026-05-09 CSZ8662 NTG → SZX May 9, 15:25 UTCMay 9, 15:50 UTC25m
2026-05-08 CSZ9324 SYX → SZX May 8, 10:59 UTCMay 8, 11:09 UTC10m
2026-05-08 CSZ9323 SZX → SYX May 8, 06:45 UTCMay 8, 06:59 UTC15m
2026-05-07 CSZ9451 SZX → KMG May 7, 23:49 UTCMay 8, 00:09 UTC20m
2026-05-07 CSZ9206 XIY → SZX May 7, 13:05 UTCMay 7, 13:20 UTC15m
2026-05-07 CSZ9205 SZX → XIY May 7, 06:50 UTCMay 7, 07:00 UTC10m
2026-05-07 - - May 7, 05:10 UTCMay 7, 05:20 UTC10m
2026-05-07 CSZ9451 SZX → KMG May 7, 00:00 UTCMay 7, 00:20 UTC20m
2026-05-06 CSZ8934 - May 6, 16:50 UTCMay 6, 17:05 UTC15m
2026-05-06 CSZ9406 CTU → SZX May 6, 09:55 UTCMay 6, 10:05 UTC10m
2026-05-06 CSZ9405 SZX → CTU May 6, 04:10 UTCMay 6, 04:20 UTC10m
2026-05-06 CSZ9856 CKG → SZX May 6, 00:50 UTCMay 6, 01:10 UTC20m
2026-05-05 CSZ9946 HFE → SZX May 5, 09:10 UTCMay 5, 09:20 UTC10m
2026-05-04 CSZ9324 SYX → SZX May 4, 10:45 UTCMay 4, 10:55 UTC10m

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-1377 page for operator, model, and routing details .

Mode-S 7812E8 frequently asked

What is Mode-S code 7812E8?
7812E8 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1377.
Where is Mode-S 7812E8 registered?
Mode-S code 7812E8 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812E8 broadcasting right now?
Yes. Mode-S 7812E8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812E8, octal 36011350, decimal 7,869,160.
What flights does 7812E8 operate?
Mode-S 7812E8 has broadcast 20 distinct callsigns, including CSZ9451, CSZ9323, CSZ8662, CSZ9526, CSZ9522.