Apparatus

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sensors Mode-S transponder

7802C1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1651 · AIRBUS A-320

Hex
7802C1
Octal
36001301
Decimal
7,865,025
Country
CN
Tail
B-1651
Type
A320
No current signal · last broadcast Jul 25, 11:10 UTC
Flights observed
327
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 11:10 UTC

Last known position

Most recent position reported by Mode-S 7802C1.

Country allocation

The ICAO 24-bit address 7802C1 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
CSN8581 - 12 2026-06-26
CSN3315 - 12 2026-07-20
CSN8575 - 10 2026-07-19
CSN5149 China Southern Airlines 9 2026-07-24
CSN8576 - 8 2026-07-19
CSN8675 - 7 2026-07-12
CSN3323 China Southern Airlines 7 2026-07-22
CSN3316 China Southern Airlines 7 2026-07-21
CSN8677 China Southern Airlines 6 2026-05-22
CSN8676 - 6 2026-07-12
CSN5854 China Southern Airlines 6 2026-06-25
CSN5853 - 6 2026-06-25
CSN5537 - 6 2026-06-30
CSN8678 China Southern Airlines 5 2026-05-25
CSN6480 China Southern Airlines 5 2026-07-20
CSN6479 China Southern Airlines 5 2026-07-20
CSN5400 - 5 2026-07-14
CSN8582 - 4 2026-06-05
CSN8492 - 4 2026-07-11
CSN8084 - 4 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSN8165 - Jul 25, 11:00 UTCJul 25, 11:10 UTC10m
2026-07-25 CSN8994 CTU → SZX Jul 25, 07:30 UTCJul 25, 07:40 UTC10m
2026-07-25 CSN8993 SZX → CTU Jul 25, 01:40 UTCJul 25, 01:50 UTC10m
2026-07-24 CSN5841 SZX → XIY Jul 24, 07:20 UTCJul 24, 07:30 UTC10m
2026-07-24 CSN5149 SZX → DLU Jul 24, 00:20 UTCJul 24, 00:35 UTC15m
2026-07-23 CSN3154 PEK → SZX Jul 23, 13:10 UTCJul 23, 13:30 UTC20m
2026-07-23 CSN3167 SZX → PKX Jul 23, 05:45 UTCJul 23, 05:55 UTC10m
2026-07-23 CSN3324 - Jul 23, 04:10 UTCJul 23, 04:20 UTC10m
2026-07-22 CSN3323 CAN → ZHA Jul 22, 22:55 UTCJul 22, 23:45 UTC50m
2026-07-22 CSN3634 HRB → SZX Jul 22, 14:50 UTCJul 22, 15:10 UTC20m
2026-07-22 CSN3633 SZX → HRB Jul 22, 04:45 UTCJul 22, 12:15 UTC7h 30m
2026-07-22 CSN6444 HAK → SZX Jul 22, 02:25 UTCJul 22, 02:50 UTC25m
2026-07-21 CSN3955 SZX → HAK Jul 21, 13:10 UTCJul 21, 13:20 UTC10m
2026-07-21 CSN3451 - Jul 21, 07:40 UTCJul 21, 07:50 UTC10m
2026-07-21 CSN3451 - Jul 21, 06:55 UTCJul 21, 07:05 UTC10m
2026-07-21 CSN3316 - Jul 21, 04:25 UTCJul 21, 04:35 UTC10m
2026-07-20 CSN3315 - Jul 20, 22:45 UTCJul 20, 22:55 UTC10m
2026-07-20 CSN6480 HGH → SZX Jul 20, 13:35 UTCJul 20, 14:20 UTC45m
2026-07-20 CSN6479 SZX → HGH Jul 20, 07:10 UTCJul 20, 07:20 UTC10m
2026-07-20 CSN3315 - Jul 20, 00:10 UTCJul 20, 00:30 UTC20m
2026-07-19 CSN8576 - Jul 19, 12:35 UTCJul 19, 13:00 UTC25m
2026-07-19 CSN8575 - Jul 19, 08:20 UTCJul 19, 08:30 UTC10m
2026-07-19 CSN5149 - Jul 19, 01:10 UTCJul 19, 01:20 UTC10m
2026-07-18 CSN6498 SYX → SZX Jul 18, 16:45 UTCJul 18, 17:05 UTC20m
2026-07-18 CSN6497 - Jul 18, 12:40 UTCJul 18, 13:00 UTC20m
2026-07-18 CSN3456 - Jul 18, 11:05 UTCJul 18, 11:15 UTC10m
2026-07-18 CSN3455 - Jul 18, 05:55 UTCJul 18, 06:15 UTC20m
2026-07-17 CSN3315 - Jul 17, 22:45 UTCJul 17, 23:10 UTC25m
2026-07-17 CSN6834 - Jul 17, 16:24 UTCJul 17, 16:34 UTC10m
2026-07-17 CSN6833 - Jul 17, 09:35 UTCJul 17, 09:50 UTC15m
2026-07-17 CSN5101 - Jul 17, 04:04 UTCJul 17, 04:14 UTC10m
2026-07-16 CSN3614 - Jul 16, 10:59 UTCJul 16, 11:10 UTC10m
2026-07-16 CSN3613 - Jul 16, 04:05 UTCJul 16, 08:20 UTC4h 15m
2026-07-16 CSN3613 - Jul 16, 01:45 UTCJul 16, 02:00 UTC15m
2026-07-15 CSN6446 - Jul 15, 16:30 UTCJul 15, 16:40 UTC10m
2026-07-15 CSN6445 - Jul 15, 11:30 UTCJul 15, 11:45 UTC15m
2026-07-15 CSN3256 - Jul 15, 09:00 UTCJul 15, 10:00 UTC1h 0m
2026-07-15 CSN3255 - Jul 15, 04:50 UTCJul 15, 05:00 UTC10m
2026-07-15 CSN3642 - Jul 15, 02:35 UTCJul 15, 02:55 UTC20m
2026-07-14 CSN3641 - Jul 14, 13:40 UTCJul 14, 13:55 UTC15m
2026-07-14 CSN5400 - Jul 14, 11:55 UTCJul 14, 12:05 UTC10m
2026-07-14 CSN3316 - Jul 14, 04:55 UTCJul 14, 05:15 UTC20m
2026-07-13 CSN3315 - Jul 13, 22:40 UTCJul 13, 22:55 UTC15m
2026-07-13 CSN8424 - Jul 13, 15:50 UTCJul 13, 16:00 UTC10m
2026-07-13 CSN8423 - Jul 13, 07:40 UTCJul 13, 08:01 UTC20m
2026-07-13 CSN5150 - Jul 13, 06:10 UTCJul 13, 06:20 UTC10m
2026-07-12 CSN8676 - Jul 12, 15:50 UTCJul 12, 16:25 UTC35m
2026-07-12 CSN8675 - Jul 12, 10:20 UTCJul 12, 10:30 UTC10m
2026-07-12 CSN8477 - Jul 12, 02:45 UTCJul 12, 03:01 UTC15m
2026-07-12 CSN6550 - Jul 12, 00:20 UTCJul 12, 00:30 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-1651 page for operator, model, and routing details .

Mode-S 7802C1 frequently asked

What is Mode-S code 7802C1?
7802C1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1651.
Where is Mode-S 7802C1 registered?
Mode-S code 7802C1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7802C1 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 11:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7802C1, octal 36001301, decimal 7,865,025.
What flights does 7802C1 operate?
Mode-S 7802C1 has broadcast 20 distinct callsigns, including CSN8581, CSN3315, CSN8575, CSN5149, CSN8576.