Apparatus

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sensors Mode-S transponder

7811CF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1448 · BOEING 737-800

Hex
7811CF
Octal
36010717
Decimal
7,868,879
Country
CN
Tail
B-1448
Type
B738
No current signal · last broadcast Jul 26, 09:10 UTC
Flights observed
167
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 09:10 UTC

Last known position

Most recent position reported by Mode-S 7811CF.

Country allocation

The ICAO 24-bit address 7811CF 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
CSH805 - 17 2026-07-15
CSH810 Shanghai Airlines 13 2026-06-11
CSH868 - 11 2026-07-15
CSH867 - 11 2026-07-15
CSH828 Shanghai Airlines 10 2026-07-23
CSH827 Shanghai Airlines 10 2026-07-22
CSH806 - 10 2026-07-16
CSH839 - 9 2026-07-14
CSH809 Shanghai Airlines 9 2026-06-11
CSH830 Shanghai Airlines 7 2026-07-26
CSH840 - 6 2026-07-14
CSH829 Shanghai Airlines 6 2026-07-25
CSH9357 Shanghai Airlines 4 2026-05-16
CSH855 Shanghai Airlines 4 2026-04-29
CSH7224 - 4 2026-07-17
CSH7223 - 4 2026-07-17
CSH857 - 3 2026-06-21
CSH852 Shanghai Airlines 3 2026-06-09
CSH851 Shanghai Airlines 3 2026-05-26
CSH802 - 3 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CSH830 PUS → PVG Jul 26, 08:50 UTCJul 26, 09:10 UTC20m
2026-07-25 CSH829 PVG → PUS Jul 25, 11:55 UTCJul 26, 07:05 UTC19h 11m
2026-07-25 CSH9130 HLD → PVG Jul 25, 11:20 UTCJul 26, 07:05 UTC19h 46m
2026-07-24 CSH830 PUS → PVG Jul 24, 08:50 UTCJul 24, 09:10 UTC20m
2026-07-24 CSH829 PVG → PUS Jul 24, 06:50 UTCJul 24, 07:15 UTC25m
2026-07-23 CSH828 ICN → PVG Jul 23, 10:35 UTCJul 23, 11:15 UTC40m
2026-07-22 CSH827 PVG → ICN Jul 22, 15:10 UTCJul 23, 09:10 UTC18h 0m
2026-07-19 CSH830 PUS → PVG Jul 19, 08:45 UTCJul 19, 09:05 UTC20m
2026-07-19 CSH829 PVG → PUS Jul 19, 06:50 UTCJul 19, 07:10 UTC20m
2026-07-18 CSH828 - Jul 18, 10:30 UTCJul 18, 11:05 UTC35m
2026-07-17 CSH7224 BKI → ICN Jul 17, 14:55 UTCJul 18, 09:10 UTC18h 16m
2026-07-17 CSH7224 - Jul 17, 13:20 UTCJul 17, 13:40 UTC20m
2026-07-17 CSH7223 - Jul 17, 10:30 UTCJul 17, 11:10 UTC40m
2026-07-16 CSH806 - Jul 16, 06:05 UTCJul 16, 07:10 UTC1h 5m
2026-07-15 CSH805 - Jul 15, 20:30 UTCJul 16, 03:50 UTC7h 20m
2026-07-15 CSH868 - Jul 15, 18:20 UTCJul 15, 18:30 UTC10m
2026-07-15 CSH867 - Jul 15, 16:45 UTCJul 15, 17:10 UTC25m
2026-07-15 CSH806 - Jul 15, 09:15 UTCJul 15, 14:35 UTC5h 20m
2026-07-14 CSH805 - Jul 14, 17:35 UTCJul 15, 03:55 UTC10h 19m
2026-07-14 CSH840 - Jul 14, 15:25 UTCJul 14, 15:35 UTC10m
2026-07-14 CSH839 - Jul 14, 13:20 UTCJul 14, 13:40 UTC20m
2026-07-14 CSH806 - Jul 14, 06:10 UTCJul 14, 11:30 UTC5h 20m
2026-07-13 CSH868 - Jul 13, 17:35 UTCJul 14, 03:45 UTC10h 10m
2026-07-13 CSH867 - Jul 13, 12:55 UTCJul 13, 16:00 UTC3h 5m
2026-07-11 CSH830 - Jul 11, 08:45 UTCJul 11, 09:05 UTC20m
2026-07-11 CSH830 - Jul 11, 06:50 UTCJul 11, 07:10 UTC20m
2026-07-10 CSH828 - Jul 10, 10:05 UTCJul 11, 01:20 UTC15h 15m
2026-07-10 CSH827 - Jul 10, 07:50 UTCJul 10, 08:40 UTC50m
2026-07-09 CSH830 - Jul 9, 09:25 UTCJul 9, 09:45 UTC20m
2026-07-09 CSH829 - Jul 9, 07:50 UTCJul 9, 08:20 UTC30m
2026-07-08 CSH828 - Jul 8, 09:50 UTCJul 8, 10:20 UTC30m
2026-07-07 CSH7224 BKI → ICN Jul 7, 14:55 UTCJul 8, 08:35 UTC17h 40m
2026-07-07 CSH7223 - Jul 7, 05:50 UTCJul 7, 13:40 UTC7h 50m
2026-07-06 CSH805 - Jul 6, 16:35 UTCJul 7, 03:45 UTC11h 10m
2026-07-06 CSH839 - Jul 6, 06:00 UTCJul 6, 15:15 UTC9h 15m
2026-07-05 CSH805 - Jul 5, 15:20 UTCJul 6, 03:55 UTC12h 35m
2026-07-05 CSH7223 - Jul 5, 10:55 UTCJul 5, 14:10 UTC3h 15m
2026-07-05 CSH806 - Jul 5, 05:40 UTCJul 5, 05:50 UTC10m
2026-07-05 CSH805 - Jul 5, 03:50 UTCJul 5, 04:10 UTC20m
2026-07-04 CSH7224 - Jul 4, 17:40 UTCJul 5, 03:15 UTC9h 35m
2026-07-04 CSH7223 - Jul 4, 05:10 UTCJul 4, 16:25 UTC11h 15m
2026-07-03 CSH841 ICN → BKK Jul 3, 09:35 UTCJul 3, 20:50 UTC11h 15m
2026-07-02 CSH828 - Jul 2, 09:40 UTCJul 3, 07:45 UTC22h 5m
2026-07-02 CSH827 - Jul 2, 07:45 UTCJul 2, 08:30 UTC45m
2026-06-30 CSH868 - Jun 30, 17:35 UTCJun 30, 20:05 UTC2h 30m
2026-06-30 CSH868 - Jun 30, 16:10 UTCJun 30, 16:25 UTC15m
2026-06-30 CSH867 - Jun 30, 05:45 UTCJun 30, 13:30 UTC7h 45m
2026-06-30 CSH805 - Jun 30, 04:00 UTCJun 30, 04:15 UTC15m
2026-06-29 CSH868 - Jun 29, 17:34 UTCJun 30, 03:25 UTC9h 51m
2026-06-29 CSH867 - Jun 29, 13:00 UTCJun 29, 16:15 UTC3h 15m

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-1448 page for operator, model, and routing details .

Mode-S 7811CF frequently asked

What is Mode-S code 7811CF?
7811CF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1448.
Where is Mode-S 7811CF registered?
Mode-S code 7811CF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7811CF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 09:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7811CF, octal 36010717, decimal 7,868,879.
What flights does 7811CF operate?
Mode-S 7811CF has broadcast 20 distinct callsigns, including CSH805, CSH810, CSH868, CSH867, CSH828.