Apparatus

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sensors Mode-S transponder

7811E1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8680 · AIRBUS A-320neo

Hex
7811E1
Octal
36010741
Decimal
7,868,897
Country
CN
Tail
B-8680
Type
A20N
No current signal · last broadcast 2d ago
Flights observed
58
Distinct callsigns
14
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 7811E1.

Country allocation

The ICAO 24-bit address 7811E1 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 14 distinct

Callsign Airline Flights Last seen
CSC3902 - 24 2026-07-11
CSC3901 - 22 2026-07-11
CSC8764 - 1 2026-06-16
CSC8760 Sichuan Airlines 1 2026-06-18
CSC8759 Sichuan Airlines 1 2026-06-18
CSC8710 Sichuan Airlines 1 2026-06-13
CSC6795 Sichuan Airlines 1 2026-06-12
CSC6733 Sichuan Airlines 1 2026-06-26
CSC6728 - 1 2026-07-01
CSC6421 - 1 2026-07-09
CSC3939 - 1 2026-07-05
CSC3367 - 1 2026-06-27
CSC3210 - 1 2026-07-01
CSC3209 - 1 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 CSC3902 - Jul 11, 06:40 UTCJul 11, 08:20 UTC1h 40m
2026-07-11 CSC3901 - Jul 11, 03:01 UTCJul 11, 05:01 UTC2h 0m
2026-07-10 CSC3902 - Jul 10, 06:20 UTCJul 11, 05:01 UTC22h 41m
2026-07-10 CSC3902 - Jul 10, 06:10 UTCJul 11, 04:15 UTC22h 5m
2026-07-10 CSC3901 - Jul 10, 02:40 UTCJul 10, 04:35 UTC1h 55m
2026-07-09 CSC3901 - Jul 9, 08:30 UTCJul 10, 04:35 UTC20h 5m
2026-07-09 CSC6421 - Jul 9, 03:25 UTCJul 9, 08:35 UTC5h 10m
2026-07-08 CSC3902 - Jul 8, 06:20 UTCJul 9, 03:25 UTC21h 5m
2026-07-08 CSC3901 - Jul 8, 02:50 UTCJul 8, 04:50 UTC2h 0m
2026-07-05 CSC3939 - Jul 5, 09:30 UTCJul 5, 14:05 UTC4h 35m
2026-07-04 CSC3902 - Jul 4, 06:20 UTCJul 4, 08:15 UTC1h 55m
2026-07-04 CSC3901 - Jul 4, 02:50 UTCJul 4, 04:40 UTC1h 50m
2026-07-03 CSC3902 - Jul 3, 06:20 UTCJul 4, 04:40 UTC22h 20m
2026-07-03 CSC3902 - Jul 3, 06:00 UTCJul 4, 04:15 UTC22h 15m
2026-07-03 CSC3901 - Jul 3, 02:35 UTCJul 3, 04:35 UTC2h 0m
2026-07-01 CSC6728 - Jul 1, 23:55 UTCJul 2, 00:20 UTC25m
2026-07-01 CSC3210 - Jul 1, 02:10 UTCJul 1, 16:50 UTC14h 40m
2026-06-30 CSC3209 - Jun 30, 14:05 UTCJul 1, 02:20 UTC12h 15m
2026-06-30 CSC3902 - Jun 30, 06:20 UTCJul 1, 02:20 UTC20h 0m
2026-06-30 CSC3902 - Jun 30, 06:00 UTCJul 1, 02:20 UTC20h 20m
2026-06-29 CSC3901 - Jun 29, 09:40 UTCJun 30, 04:05 UTC18h 25m
2026-06-27 CSC3367 - Jun 27, 08:14 UTCJun 27, 08:44 UTC30m
2026-06-26 CSC6733 CGO → CGQ Jun 26, 07:00 UTCJun 26, 07:20 UTC20m
2026-06-18 CSC8760 SYX → CTU Jun 18, 14:01 UTCJun 18, 14:15 UTC15m
2026-06-18 CSC8759 CTU → SYX Jun 18, 11:05 UTCJun 18, 11:35 UTC30m
2026-06-16 CSC8764 - Jun 16, 16:00 UTCJun 16, 16:15 UTC15m
2026-06-13 CSC8710 SZX → CTU Jun 13, 00:40 UTCJun 13, 00:50 UTC10m
2026-06-12 CSC6795 TFU → SZX Jun 12, 13:15 UTCJun 12, 13:25 UTC10m
2026-06-12 CSC3902 KTM → TFU Jun 12, 06:05 UTCJun 12, 07:15 UTC1h 10m
2026-06-12 CSC3901 - Jun 12, 03:25 UTCJun 12, 04:00 UTC35m
2026-06-10 CSC3902 KTM → TFU Jun 10, 06:05 UTCJun 10, 07:20 UTC1h 15m
2026-06-10 CSC3901 TFU → KTM Jun 10, 02:55 UTCJun 10, 04:10 UTC1h 15m
2026-06-09 CSC3901 TFU → KTM Jun 9, 08:00 UTCJun 10, 04:10 UTC20h 10m
2026-06-03 CSC3902 KTM → TFU Jun 3, 06:05 UTCJun 3, 07:30 UTC1h 25m
2026-06-03 CSC3901 TFU → KTM Jun 3, 03:05 UTCJun 3, 04:35 UTC1h 30m
2026-06-02 CSC3901 TFU → KTM Jun 2, 06:20 UTCJun 3, 04:35 UTC22h 15m
2026-06-02 CSC3902 KTM → TFU Jun 2, 06:05 UTCJun 3, 04:15 UTC22h 10m
2026-06-02 CSC3901 TFU → KTM Jun 2, 02:55 UTCJun 2, 04:35 UTC1h 40m
2026-06-01 CSC3901 TFU → KTM Jun 1, 06:30 UTCJun 2, 04:35 UTC22h 5m
2026-06-01 CSC3901 TFU → KTM Jun 1, 03:00 UTCJun 1, 04:40 UTC1h 40m
2026-05-30 CSC3902 KTM → TFU May 30, 06:50 UTCMay 30, 08:35 UTC1h 45m
2026-05-30 CSC3901 TFU → KTM May 30, 02:45 UTCMay 30, 04:45 UTC2h 0m
2026-05-28 CSC3902 KTM → TFU May 28, 06:20 UTCMay 28, 08:00 UTC1h 40m
2026-05-28 CSC3901 TFU → KTM May 28, 03:35 UTCMay 28, 05:05 UTC1h 30m
2026-04-16 CSC3902 KTM → TFU Apr 16, 07:15 UTCApr 16, 08:15 UTC1h 0m
2026-04-16 CSC3902 KTM → TFU Apr 16, 06:55 UTCApr 16, 07:05 UTC10m
2026-04-16 CSC3901 TFU → KTM Apr 16, 03:14 UTCApr 16, 05:00 UTC1h 45m
2026-04-15 CSC3902 KTM → TFU Apr 15, 07:01 UTCApr 15, 07:50 UTC50m
2026-04-15 CSC3902 KTM → TFU Apr 15, 06:40 UTCApr 15, 06:55 UTC15m
2026-04-15 CSC3901 TFU → KTM Apr 15, 03:25 UTCApr 15, 04:50 UTC1h 25m

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-8680 page for operator, model, and routing details .

Mode-S 7811E1 frequently asked

What is Mode-S code 7811E1?
7811E1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8680.
Where is Mode-S 7811E1 registered?
Mode-S code 7811E1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7811E1 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 7811E1, octal 36010741, decimal 7,868,897.
What flights does 7811E1 operate?
Mode-S 7811E1 has broadcast 14 distinct callsigns, including CSC3902, CSC3901, CSC8764, CSC8760, CSC8759.