Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7811DE

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8683 · AIRBUS A-320neo

Hex
7811DE
Octal
36010736
Decimal
7,868,894
Country
CN
Tail
B-8683
Type
A20N
No current signal · last broadcast 10h ago
Flights observed
75
Distinct callsigns
7
Country
CN
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 7811DE.

Country allocation

The ICAO 24-bit address 7811DE 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 7 distinct

Callsign Airline Flights Last seen
CSC3901 - 49 2026-06-15
CSC3902 - 20 2026-06-15
CSC3993 Sichuan Airlines 2 2026-05-01
CSC6788 Sichuan Airlines 1 2026-05-30
CSC3994 Sichuan Airlines 1 2026-05-01
CSC302D - 1 2026-04-27
CSC301D - 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-15 CSC3902 - Jun 15, 06:24 UTCJun 15, 08:04 UTC1h 40m
2026-06-15 CSC3901 - Jun 15, 03:05 UTCJun 15, 04:34 UTC1h 30m
2026-06-09 CSC3902 KTM → TFU Jun 9, 06:05 UTCJun 9, 07:20 UTC1h 15m
2026-06-09 CSC3901 TFU → KTM Jun 9, 03:10 UTCJun 9, 04:35 UTC1h 25m
2026-06-08 CSC3901 TFU → KTM Jun 8, 06:10 UTCJun 9, 04:35 UTC22h 25m
2026-06-08 CSC3901 TFU → KTM Jun 8, 03:20 UTCJun 8, 04:30 UTC1h 10m
2026-06-05 CSC3902 KTM → TFU Jun 5, 06:10 UTCJun 5, 07:10 UTC1h 0m
2026-06-05 CSC3901 TFU → KTM Jun 5, 03:20 UTCJun 5, 04:45 UTC1h 25m
2026-05-30 CSC6788 ZUH → TFU May 30, 04:10 UTCMay 30, 04:25 UTC15m
2026-05-24 CSC3902 KTM → TFU May 24, 06:00 UTCMay 24, 07:35 UTC1h 35m
2026-05-24 CSC3901 TFU → KTM May 24, 02:45 UTCMay 24, 04:40 UTC1h 55m
2026-05-23 CSC3901 TFU → KTM May 23, 06:20 UTCMay 24, 04:40 UTC22h 21m
2026-05-23 CSC3901 TFU → KTM May 23, 03:25 UTCMay 23, 04:35 UTC1h 10m
2026-05-22 CSC3901 TFU → KTM May 22, 06:15 UTCMay 23, 04:35 UTC22h 19m
2026-05-22 CSC3901 TFU → KTM May 22, 03:25 UTCMay 22, 04:05 UTC40m
2026-05-21 CSC3902 KTM → TFU May 21, 06:15 UTCMay 22, 04:05 UTC21h 50m
2026-05-21 CSC3901 TFU → KTM May 21, 03:40 UTCMay 21, 04:55 UTC1h 15m
2026-05-20 CSC3902 KTM → TFU May 20, 06:05 UTCMay 21, 04:55 UTC22h 50m
2026-05-20 CSC3901 TFU → KTM May 20, 03:20 UTCMay 20, 03:55 UTC35m
2026-05-19 CSC3901 TFU → KTM May 19, 07:35 UTCMay 20, 03:55 UTC20h 20m
2026-05-19 CSC3902 KTM → TFU May 19, 07:05 UTCMay 20, 03:55 UTC20h 50m
2026-05-19 CSC3901 TFU → KTM May 19, 03:50 UTCMay 20, 03:30 UTC23h 40m
2026-05-18 CSC3901 TFU → KTM May 18, 06:25 UTCMay 19, 04:35 UTC22h 9m
2026-05-18 CSC3901 TFU → KTM May 18, 03:01 UTCMay 18, 07:05 UTC4h 5m
2026-05-17 CSC3902 KTM → TFU May 17, 06:10 UTCMay 18, 04:15 UTC22h 5m
2026-05-17 CSC3901 TFU → KTM May 17, 04:35 UTCMay 17, 04:55 UTC20m
2026-05-17 CSC3901 TFU → KTM May 17, 03:25 UTCMay 17, 04:05 UTC40m
2026-05-16 CSC3901 TFU → KTM May 16, 07:41 UTCMay 17, 04:05 UTC20h 25m
2026-05-16 CSC3902 KTM → TFU May 16, 06:20 UTCMay 17, 04:05 UTC21h 45m
2026-05-16 CSC3901 TFU → KTM May 16, 03:25 UTCMay 16, 04:45 UTC1h 20m
2026-05-15 CSC3902 KTM → TFU May 15, 06:20 UTCMay 16, 04:45 UTC22h 24m
2026-05-15 CSC3901 TFU → KTM May 15, 02:55 UTCMay 15, 05:05 UTC2h 10m
2026-05-14 CSC3902 KTM → TFU May 14, 06:10 UTCMay 15, 03:30 UTC21h 20m
2026-05-14 CSC3901 TFU → KTM May 14, 03:30 UTCMay 14, 04:55 UTC1h 25m
2026-05-13 CSC3901 TFU → KTM May 13, 07:35 UTCMay 14, 04:55 UTC21h 20m
2026-05-13 CSC3902 KTM → TFU May 13, 06:15 UTCMay 14, 04:55 UTC22h 40m
2026-05-13 CSC3901 TFU → KTM May 13, 03:25 UTCMay 13, 04:20 UTC55m
2026-05-12 CSC3901 TFU → KTM May 12, 07:35 UTCMay 13, 04:20 UTC20h 45m
2026-05-12 CSC3902 KTM → TFU May 12, 07:05 UTCMay 13, 04:20 UTC21h 15m
2026-05-12 CSC3901 TFU → KTM May 12, 03:35 UTCMay 13, 03:30 UTC23h 55m
2026-05-12 CSC3901 TFU → KTM May 12, 03:05 UTCMay 12, 08:15 UTC5h 10m
2026-05-11 CSC3901 TFU → KTM May 11, 07:35 UTCMay 12, 07:30 UTC23h 55m
2026-05-11 CSC3901 TFU → KTM May 11, 07:00 UTCMay 12, 04:35 UTC21h 35m
2026-05-11 CSC3901 TFU → KTM May 11, 03:30 UTCMay 11, 05:00 UTC1h 30m
2026-05-10 CSC3901 TFU → KTM May 10, 07:34 UTCMay 11, 05:00 UTC21h 26m
2026-05-10 CSC3902 KTM → TFU May 10, 06:25 UTCMay 11, 05:00 UTC22h 35m
2026-05-10 CSC3901 TFU → KTM May 10, 03:14 UTCMay 10, 05:10 UTC1h 55m
2026-05-09 CSC3901 TFU → KTM May 9, 07:35 UTCMay 10, 05:10 UTC21h 35m
2026-05-09 CSC3901 TFU → KTM May 9, 06:55 UTCMay 10, 05:10 UTC22h 15m
2026-05-09 CSC3901 TFU → KTM May 9, 03:35 UTCMay 9, 05:15 UTC1h 40m

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-8683 page for operator, model, and routing details .

Mode-S 7811DE frequently asked

What is Mode-S code 7811DE?
7811DE is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8683.
Where is Mode-S 7811DE registered?
Mode-S code 7811DE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7811DE 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 7811DE, octal 36010736, decimal 7,868,894.
What flights does 7811DE operate?
Mode-S 7811DE has broadcast 7 distinct callsigns, including CSC3901, CSC3902, CSC3993, CSC6788, CSC3994.