Apparatus

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sensors Mode-S transponder

7803E2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6321 · AIRBUS A-320

Hex
7803E2
Octal
36001742
Decimal
7,865,314
Country
CN
Tail
B-6321
Type
A320
No current signal · last broadcast 5d ago
Flights observed
56
Distinct callsigns
20
Country
CN
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 7803E2.

Country allocation

The ICAO 24-bit address 7803E2 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
CSC3960 Sichuan Airlines 6 2026-06-10
CSC3959 Sichuan Airlines 6 2026-06-10
CSC3208 - 4 2026-07-07
CSC8837 - 3 2026-07-12
CSC8830 - 3 2026-07-04
CSC3532 - 3 2026-07-12
CSC3247 - 3 2026-07-06
CSC3126 - 3 2026-07-12
CSC8834 - 2 2026-07-01
CSC8832 - 2 2026-06-30
CSC6727 Sichuan Airlines 2 2026-06-20
CSC3928 Sichuan Airlines 2 2026-06-03
CSC3531 - 2 2026-07-11
CSC3248 - 2 2026-07-06
CSC3125 - 2 2026-07-11
CSC8833 - 1 2026-06-28
CSC8831 - 1 2026-07-04
CSC8782 - 1 2026-07-02
CSC8760 Sichuan Airlines 1 2026-06-13
CSC8281 Sichuan Airlines 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 CSC8837 - Jul 12, 23:05 UTCJul 12, 23:20 UTC15m
2026-07-12 CSC3532 - Jul 12, 14:40 UTCJul 12, 15:01 UTC20m
2026-07-12 CSC3126 - Jul 12, 10:05 UTCJul 12, 10:25 UTC20m
2026-07-11 CSC3125 - Jul 11, 23:55 UTCJul 12, 00:15 UTC20m
2026-07-11 CSC3531 - Jul 11, 12:35 UTCJul 11, 13:00 UTC25m
2026-07-10 CSC3532 - Jul 10, 15:45 UTCJul 11, 13:00 UTC21h 16m
2026-07-10 CSC3126 - Jul 10, 13:20 UTCJul 10, 13:30 UTC10m
2026-07-10 CSC3125 - Jul 10, 00:00 UTCJul 10, 00:20 UTC20m
2026-07-09 CSC3531 - Jul 9, 12:25 UTCJul 9, 12:50 UTC25m
2026-07-08 CSC3532 - Jul 8, 15:55 UTCJul 8, 16:10 UTC15m
2026-07-07 CSC3208 - Jul 7, 03:05 UTCJul 7, 15:40 UTC12h 35m
2026-07-06 CSC3248 - Jul 6, 13:15 UTCJul 7, 12:30 UTC23h 15m
2026-07-06 CSC3247 - Jul 6, 00:45 UTCJul 6, 13:20 UTC12h 35m
2026-07-05 CSC3248 - Jul 5, 13:35 UTCJul 6, 00:50 UTC11h 15m
2026-07-05 CSC3247 - Jul 5, 00:40 UTCJul 5, 13:50 UTC13h 10m
2026-07-04 CSC3247 - Jul 4, 11:05 UTCJul 5, 00:50 UTC13h 45m
2026-07-04 CSC8831 - Jul 4, 09:05 UTCJul 4, 09:20 UTC15m
2026-07-04 CSC8830 - Jul 4, 03:05 UTCJul 4, 03:25 UTC20m
2026-07-02 CSC8782 - Jul 2, 02:40 UTCJul 2, 02:55 UTC15m
2026-07-02 - - Jul 2, 00:50 UTCJul 2, 01:00 UTC10m
2026-07-01 CSC8834 - Jul 1, 15:10 UTCJul 1, 15:35 UTC25m
2026-06-30 CSC8832 - Jun 30, 12:05 UTCJun 30, 12:30 UTC25m
2026-06-30 CSC8830 - Jun 30, 03:05 UTCJun 30, 03:25 UTC20m
2026-06-29 CSC8832 - Jun 29, 11:50 UTCJun 29, 12:14 UTC25m
2026-06-29 CSC8830 - Jun 29, 03:39 UTCJun 29, 04:04 UTC25m
2026-06-28 CSC8834 - Jun 28, 15:29 UTCJun 28, 15:44 UTC15m
2026-06-28 CSC8833 - Jun 28, 11:25 UTCJun 28, 11:35 UTC10m
2026-06-27 CSC8062 - Jun 27, 15:30 UTCJun 27, 15:45 UTC15m
2026-06-27 CSC3208 - Jun 27, 02:59 UTCJun 27, 12:19 UTC9h 20m
2026-06-26 CSC3208 - Jun 26, 11:45 UTCJun 27, 03:15 UTC15h 30m
2026-06-23 CSC3208 - Jun 23, 03:15 UTCJun 23, 12:55 UTC9h 40m
2026-06-21 CSC3238 KMG → SYX Jun 21, 11:34 UTCJun 21, 15:44 UTC4h 10m
2026-06-20 CSC6727 TFU → SYX Jun 20, 13:59 UTCJun 20, 14:39 UTC40m
2026-06-13 CSC8760 SYX → CTU Jun 13, 13:45 UTCJun 13, 14:00 UTC15m
2026-06-12 CSC6727 TFU → SYX Jun 12, 13:40 UTCJun 12, 14:10 UTC30m
2026-06-10 CSC3960 HKG → TFU Jun 10, 10:50 UTCJun 10, 11:10 UTC20m
2026-06-10 CSC3959 TFU → HKG Jun 10, 08:35 UTCJun 10, 08:50 UTC15m
2026-06-03 CSC3928 VTE → TFU Jun 3, 18:40 UTCJun 3, 18:50 UTC10m
2026-06-03 CSC3960 HKG → TFU Jun 3, 10:50 UTCJun 3, 11:05 UTC15m
2026-06-03 CSC3959 TFU → HKG Jun 3, 08:30 UTCJun 3, 09:05 UTC35m
2026-05-31 CSC3928 VTE → TFU May 31, 18:35 UTCMay 31, 18:50 UTC15m
2026-05-31 CSC3960 HKG → TFU May 31, 10:50 UTCMay 31, 11:10 UTC20m
2026-05-31 CSC3959 TFU → HKG May 31, 08:40 UTCMay 31, 09:05 UTC25m
2026-05-30 CSC3960 HKG → TFU May 30, 10:55 UTCMay 30, 11:10 UTC15m
2026-05-30 CSC3959 TFU → HKG May 30, 08:35 UTCMay 30, 09:10 UTC35m
2026-05-16 CSC3960 HKG → TFU May 16, 10:55 UTCMay 16, 11:11 UTC15m
2026-05-16 CSC3959 TFU → HKG May 16, 08:55 UTCMay 16, 09:31 UTC35m
2026-05-15 CSC3960 HKG → TFU May 15, 11:30 UTCMay 15, 11:45 UTC15m
2026-05-15 CSC3959 TFU → HKG May 15, 09:45 UTCMay 15, 10:10 UTC25m
2026-04-29 CSC8206 CAN → KMG Apr 29, 23:15 UTCApr 29, 23:25 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-6321 page for operator, model, and routing details .

Mode-S 7803E2 frequently asked

What is Mode-S code 7803E2?
7803E2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6321.
Where is Mode-S 7803E2 registered?
Mode-S code 7803E2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7803E2 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7803E2, octal 36001742, decimal 7,865,314.
What flights does 7803E2 operate?
Mode-S 7803E2 has broadcast 20 distinct callsigns, including CSC3960, CSC3959, CSC3208, CSC8837, CSC8830.