Apparatus

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sensors Mode-S transponder

7812FE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1379 · BOEING 737 MAX 8

Hex
7812FE
Octal
36011376
Decimal
7,869,182
Country
CN
Tail
B-1379
Type
B38M
No current signal · last broadcast 10h ago
Flights observed
148
Distinct callsigns
20
Country
CN
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 7812FE.

Country allocation

The ICAO 24-bit address 7812FE 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
CSH857 - 15 2026-07-15
CSH858 - 11 2026-07-15
CSH863 - 8 2026-07-06
CSH831 - 8 2026-06-27
CSH861 - 7 2026-06-22
CSH856 - 7 2026-07-16
CSH841 - 7 2026-07-17
CSH855 - 6 2026-07-16
CSH834 - 6 2026-06-25
CSH812 - 6 2026-07-14
CSH877 - 5 2026-07-09
CSH853 - 5 2026-06-21
CSH866 Shanghai Airlines 4 2026-06-26
CSH865 - 4 2026-06-25
CSH864 - 4 2026-07-06
CSH847 Shanghai Airlines 4 2026-06-09
CSH842 - 4 2026-07-09
CSH833 - 4 2026-06-14
CSH811 - 4 2026-07-13
CSH9255 Shanghai Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSH841 - Jul 17, 06:15 UTCJul 17, 16:24 UTC10h 10m
2026-07-16 CSH841 - Jul 16, 16:05 UTCJul 17, 11:20 UTC19h 15m
2026-07-16 CSH856 - Jul 16, 13:54 UTCJul 16, 14:10 UTC15m
2026-07-16 CSH855 - Jul 16, 11:20 UTCJul 16, 11:45 UTC25m
2026-07-15 CSH858 - Jul 15, 13:35 UTCJul 16, 09:15 UTC19h 40m
2026-07-15 CSH858 - Jul 15, 11:50 UTCJul 16, 09:15 UTC21h 25m
2026-07-15 CSH857 - Jul 15, 11:20 UTCJul 16, 09:15 UTC21h 55m
2026-07-14 CSH812 - Jul 14, 06:35 UTCJul 14, 07:35 UTC1h 0m
2026-07-13 CSH811 - Jul 13, 19:50 UTCJul 14, 04:40 UTC8h 50m
2026-07-13 CSH843 PVG → SIN Jul 13, 07:15 UTCJul 13, 18:10 UTC10h 55m
2026-07-13 CSH854 - Jul 13, 05:05 UTCJul 13, 05:25 UTC20m
2026-07-12 CSH841 - Jul 12, 18:20 UTCJul 12, 18:40 UTC20m
2026-07-11 CSH812 - Jul 11, 06:30 UTCJul 11, 06:45 UTC15m
2026-07-10 CSH840 - Jul 10, 15:15 UTCJul 11, 04:20 UTC13h 6m
2026-07-10 CSH839 - Jul 10, 03:50 UTCJul 10, 13:50 UTC10h 0m
2026-07-10 CSH878 - Jul 10, 00:40 UTCJul 10, 00:50 UTC10m
2026-07-09 CSH877 - Jul 9, 22:45 UTCJul 9, 23:00 UTC15m
2026-07-09 CSH842 - Jul 9, 03:20 UTCJul 9, 20:00 UTC16h 40m
2026-07-08 CSH841 - Jul 8, 10:15 UTCJul 8, 18:25 UTC8h 10m
2026-07-07 CSH856 - Jul 7, 14:00 UTCJul 8, 11:05 UTC21h 5m
2026-07-07 CSH856 - Jul 7, 12:25 UTCJul 8, 11:05 UTC22h 40m
2026-07-06 CSH864 - Jul 6, 23:05 UTCJul 7, 10:50 UTC11h 45m
2026-07-06 CSH863 - Jul 6, 17:20 UTCJul 6, 21:35 UTC4h 15m
2026-07-04 CSH858 - Jul 4, 18:05 UTCJul 5, 12:55 UTC18h 50m
2026-07-04 CSH858 - Jul 4, 15:35 UTCJul 5, 12:55 UTC21h 20m
2026-07-04 CSH858 - Jul 4, 14:10 UTCJul 5, 12:55 UTC22h 45m
2026-07-04 CSH857 - Jul 4, 13:20 UTCJul 4, 20:40 UTC7h 20m
2026-07-03 CSH9132 - Jul 3, 18:25 UTCJul 4, 03:50 UTC9h 25m
2026-07-03 CSH842 - Jul 3, 03:35 UTCJul 4, 03:30 UTC23h 55m
2026-07-03 CSH842 - Jul 3, 03:05 UTCJul 3, 18:40 UTC15h 35m
2026-07-02 CSH841 - Jul 2, 10:15 UTCJul 2, 18:40 UTC8h 25m
2026-06-30 CSH857 - Jun 30, 11:25 UTCJul 1, 04:20 UTC16h 55m
2026-06-29 CSH857 - Jun 29, 18:25 UTCJun 30, 17:30 UTC23h 6m
2026-06-29 CSH857 - Jun 29, 16:39 UTCJun 30, 14:00 UTC21h 21m
2026-06-29 CSH857 - Jun 29, 13:34 UTCJun 30, 13:30 UTC23h 56m
2026-06-29 CSH857 - Jun 29, 11:35 UTCJun 30, 11:30 UTC23h 55m
2026-06-29 CSH857 - Jun 29, 11:29 UTCJun 29, 19:20 UTC7h 50m
2026-06-27 CSH831 - Jun 27, 03:40 UTCJun 27, 19:39 UTC16h 0m
2026-06-26 CSH831 - Jun 26, 16:09 UTCJun 27, 14:49 UTC22h 40m
2026-06-26 CSH866 KUL → PVG Jun 26, 12:50 UTCJun 27, 06:40 UTC17h 50m
2026-06-25 CSH865 - Jun 25, 23:14 UTCJun 26, 11:00 UTC11h 45m
2026-06-25 CSH834 - Jun 25, 09:59 UTCJun 25, 21:55 UTC11h 55m
2026-06-24 CSH832 - Jun 24, 13:40 UTCJun 25, 07:59 UTC18h 20m
2026-06-24 CSH832 - Jun 24, 12:34 UTCJun 25, 07:59 UTC19h 25m
2026-06-24 CSH832 - Jun 24, 03:55 UTCJun 24, 20:14 UTC16h 20m
2026-06-24 CSH878 - Jun 24, 00:44 UTCJun 24, 00:55 UTC10m
2026-06-23 CSH877 - Jun 23, 22:44 UTCJun 23, 23:00 UTC15m
2026-06-23 CSH834 - Jun 23, 10:44 UTCJun 23, 20:34 UTC9h 50m
2026-06-22 CSH862 - Jun 22, 18:09 UTCJun 23, 08:59 UTC14h 50m
2026-06-22 CSH861 - Jun 22, 05:04 UTCJun 22, 16:14 UTC11h 10m

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-1379 page for operator, model, and routing details .

Mode-S 7812FE frequently asked

What is Mode-S code 7812FE?
7812FE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1379.
Where is Mode-S 7812FE registered?
Mode-S code 7812FE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7812FE broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7812FE, octal 36011376, decimal 7,869,182.
What flights does 7812FE operate?
Mode-S 7812FE has broadcast 20 distinct callsigns, including CSH857, CSH858, CSH863, CSH831, CSH861.