Apparatus

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sensors Mode-S transponder

7800C1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5468 · BOEING 737-800

Hex
7800C1
Octal
36000301
Decimal
7,864,513
Country
CN
Tail
B-5468
Type
B738
No current signal · last broadcast 23h ago
Flights observed
68
Distinct callsigns
20
Country
CN
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 7800C1.

Country allocation

The ICAO 24-bit address 7800C1 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
CSN5052 - 9 2026-06-29
CSN8476 - 6 2026-07-18
CSN8475 - 6 2026-07-22
CSN5051 - 6 2026-06-29
CSN3078 - 6 2026-07-04
CSN3793 China Southern Airlines 4 2026-06-02
CSN3279 China Southern Airlines 4 2026-06-03
CSN3409 - 3 2026-06-27
CSN3077 - 3 2026-07-03
CSN6050 - 2 2026-07-06
CSN398 China Southern Airlines 2 2026-07-21
CSN3280 China Southern Airlines 2 2026-04-23
CSN8824 China Southern Airlines 1 2026-06-07
CSN8823 China Southern Airlines 1 2026-05-03
CSN8262 - 1 2026-06-10
CSN6049 - 1 2026-07-06
CSN5885 - 1 2026-07-12
CSN5339 - 1 2026-07-23
CSN397 China Southern Airlines 1 2026-07-21
CSN3896 - 1 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 CSN5339 - Jul 23, 00:20 UTCJul 23, 00:45 UTC25m
2026-07-22 CSN3896 - Jul 22, 14:45 UTCJul 22, 14:55 UTC10m
2026-07-22 CSN8475 - Jul 22, 01:40 UTCJul 22, 01:50 UTC10m
2026-07-21 CSN398 MNL → CAN Jul 21, 14:25 UTCJul 21, 14:40 UTC15m
2026-07-21 CSN398 MNL → CAN Jul 21, 13:00 UTCJul 21, 13:30 UTC30m
2026-07-21 CSN397 CAN → MNL Jul 21, 09:15 UTCJul 21, 11:15 UTC2h 0m
2026-07-19 CSN3270 - Jul 19, 16:15 UTCJul 19, 16:50 UTC35m
2026-07-19 - - Jul 19, 15:25 UTCJul 19, 15:35 UTC10m
2026-07-18 CSN8476 - Jul 18, 05:55 UTCJul 18, 06:10 UTC15m
2026-07-16 CSN8476 - Jul 16, 06:20 UTCJul 16, 06:40 UTC20m
2026-07-16 CSN8475 - Jul 16, 01:50 UTCJul 16, 02:15 UTC25m
2026-07-12 CSN5885 - Jul 12, 11:05 UTCJul 12, 11:15 UTC10m
2026-07-09 CSN8476 - Jul 9, 05:50 UTCJul 9, 06:10 UTC20m
2026-07-09 CSN8475 - Jul 9, 01:15 UTCJul 9, 01:30 UTC15m
2026-07-07 CSN3518 - Jul 7, 17:35 UTCJul 8, 10:10 UTC16h 35m
2026-07-07 CSN8476 - Jul 7, 06:40 UTCJul 7, 07:00 UTC20m
2026-07-06 CSN6050 - Jul 6, 14:50 UTCJul 6, 15:10 UTC20m
2026-07-06 CSN6049 - Jul 6, 09:45 UTCJul 6, 10:05 UTC20m
2026-07-05 CSN6050 - Jul 5, 11:20 UTCJul 5, 11:35 UTC15m
2026-07-04 CSN3078 - Jul 4, 02:00 UTCJul 4, 02:15 UTC15m
2026-07-04 CSN3078 - Jul 4, 00:35 UTCJul 4, 01:05 UTC30m
2026-07-03 CSN3077 - Jul 3, 13:25 UTCJul 3, 15:20 UTC1h 55m
2026-07-02 CSN3419 - Jul 2, 14:25 UTCJul 2, 15:15 UTC50m
2026-07-02 CSN8476 - Jul 2, 06:51 UTCJul 2, 07:05 UTC14m
2026-07-02 CSN8475 - Jul 2, 01:45 UTCJul 2, 01:55 UTC10m
2026-07-01 CSN3850 - Jul 1, 09:50 UTCJul 1, 10:05 UTC15m
2026-06-29 CSN5052 - Jun 29, 21:19 UTCJun 29, 21:54 UTC35m
2026-06-29 CSN5052 - Jun 29, 20:00 UTCJun 29, 20:35 UTC35m
2026-06-29 CSN5051 - Jun 29, 16:10 UTCJun 29, 18:10 UTC2h 0m
2026-06-28 CSN3871 - Jun 28, 15:05 UTCJun 28, 15:14 UTC10m
2026-06-27 CSN3409 - Jun 27, 00:39 UTCJun 27, 01:24 UTC45m
2026-06-26 CSN5052 - Jun 26, 22:05 UTCJun 26, 22:29 UTC25m
2026-06-26 CSN5052 - Jun 26, 20:44 UTCJun 26, 21:15 UTC30m
2026-06-26 CSN5051 - Jun 26, 17:35 UTCJun 26, 19:35 UTC2h 0m
2026-06-26 CSN3409 - Jun 26, 01:20 UTCJun 26, 04:59 UTC3h 40m
2026-06-25 CSN3078 - Jun 25, 01:50 UTCJun 25, 02:19 UTC30m
2026-06-25 CSN3078 - Jun 25, 00:29 UTCJun 25, 00:59 UTC30m
2026-06-24 CSN3077 - Jun 24, 13:00 UTCJun 24, 14:45 UTC1h 45m
2026-06-23 CSN3409 - Jun 23, 00:39 UTCJun 23, 01:40 UTC1h 0m
2026-06-22 CSN5052 - Jun 22, 21:00 UTCJun 22, 21:19 UTC20m
2026-06-22 CSN5052 - Jun 22, 19:40 UTCJun 22, 20:10 UTC30m
2026-06-22 CSN5051 YYZ → CAN Jun 22, 16:05 UTCJun 22, 17:55 UTC1h 50m
2026-06-22 CSN3078 - Jun 22, 02:00 UTCJun 22, 02:19 UTC20m
2026-06-22 CSN3078 - Jun 22, 00:40 UTCJun 22, 01:10 UTC30m
2026-06-21 CSN3077 - Jun 21, 12:49 UTCJun 21, 14:44 UTC1h 55m
2026-06-18 CSN8476 - Jun 18, 06:50 UTCJun 18, 07:00 UTC10m
2026-06-17 CSN5052 MNL → CAN Jun 17, 21:15 UTCJun 17, 21:35 UTC20m
2026-06-17 CSN5052 MNL → CAN Jun 17, 19:45 UTCJun 17, 20:15 UTC30m
2026-06-17 CSN5051 YYZ → CAN Jun 17, 16:10 UTCJun 17, 17:55 UTC1h 45m
2026-06-16 CSN8475 - Jun 16, 01:35 UTCJun 16, 06:20 UTC4h 45m

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-5468 page for operator, model, and routing details .

Mode-S 7800C1 frequently asked

What is Mode-S code 7800C1?
7800C1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5468.
Where is Mode-S 7800C1 registered?
Mode-S code 7800C1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7800C1 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7800C1, octal 36000301, decimal 7,864,513.
What flights does 7800C1 operate?
Mode-S 7800C1 has broadcast 20 distinct callsigns, including CSN5052, CSN8476, CSN8475, CSN5051, CSN3078.