Apparatus

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sensors Mode-S transponder

7820C0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32GR · AIRBUS A-321neo

Hex
7820C0
Octal
36020300
Decimal
7,872,704
Country
CN
Tail
B-32GR
Type
A21N
No current signal · last broadcast Jul 26, 08:30 UTC
Flights observed
134
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 08:30 UTC

Last known position

Most recent position reported by Mode-S 7820C0.

Country allocation

The ICAO 24-bit address 7820C0 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
CSN6309 - 21 2026-07-06
CSN6310 - 19 2026-07-06
CSN681 - 13 2026-06-28
CSN682 - 11 2026-06-29
CSN6312 - 9 2026-07-19
CSN6367 - 8 2026-07-05
CSN6311 China Southern Airlines 8 2026-07-22
CSN6265 China Southern Airlines 6 2026-07-22
CSN5817 China Southern Airlines 6 2026-07-25
CSN3602 - 6 2026-07-06
CSN6501 China Southern Airlines 4 2026-05-27
CSN6461 - 3 2026-06-22
CSN8874 - 2 2026-07-14
CSN6503 China Southern Airlines 2 2026-05-29
CSN6368 China Southern Airlines 2 2026-06-05
CSN6303 - 2 2026-07-09
CSN3601 China Southern Airlines 2 2026-06-25
CSN6519 - 1 2026-07-08
CSN6470 China Southern Airlines 1 2026-06-02
CSN6462 China Southern Airlines 1 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CSN5857 SHE → HGH Jul 25, 17:00 UTCJul 26, 08:30 UTC15h 31m
2026-07-25 CSN5817 CSX → CKG Jul 25, 01:00 UTCJul 25, 09:30 UTC8h 30m
2026-07-24 CSN5817 CSX → CKG Jul 24, 02:45 UTCJul 25, 01:30 UTC22h 45m
2026-07-23 CSN6451 SHE → NKG Jul 23, 06:45 UTCJul 24, 03:00 UTC20h 15m
2026-07-22 CSN6265 SHE → HGH Jul 22, 10:25 UTCJul 23, 07:10 UTC20h 45m
2026-07-22 CSN6311 SHE → SZX Jul 22, 04:00 UTCJul 22, 04:10 UTC10m
2026-07-21 CSN6311 SHE → SZX Jul 21, 11:50 UTCJul 22, 01:25 UTC13h 35m
2026-07-20 CSN6265 SHE → HGH Jul 20, 07:55 UTCJul 20, 08:25 UTC30m
2026-07-19 CSN6312 - Jul 19, 06:00 UTCJul 19, 06:10 UTC10m
2026-07-18 CSN6311 - Jul 18, 07:35 UTCJul 19, 01:25 UTC17h 50m
2026-07-17 CSN6265 SHE → HGH Jul 17, 08:20 UTCJul 18, 08:00 UTC23h 41m
2026-07-17 CSN6312 - Jul 17, 06:00 UTCJul 17, 06:15 UTC15m
2026-07-17 CSN6311 - Jul 17, 01:09 UTCJul 17, 01:25 UTC15m
2026-07-15 CSN6265 - Jul 15, 08:20 UTCJul 15, 08:40 UTC20m
2026-07-14 CSN8874 - Jul 14, 04:40 UTCJul 14, 04:55 UTC15m
2026-07-13 CSN5817 - Jul 13, 04:05 UTCJul 13, 11:20 UTC7h 15m
2026-07-12 CSN6102 - Jul 12, 13:45 UTCJul 13, 11:20 UTC21h 35m
2026-07-12 CSN3157 - Jul 12, 08:55 UTCJul 12, 09:05 UTC10m
2026-07-12 CSN3168 - Jul 12, 06:20 UTCJul 12, 06:35 UTC15m
2026-07-09 CSN6303 - Jul 9, 12:05 UTCJul 9, 12:25 UTC20m
2026-07-09 CSN6303 - Jul 9, 09:55 UTCJul 9, 10:05 UTC10m
2026-07-08 CSN6519 - Jul 8, 10:35 UTCJul 9, 10:00 UTC23h 25m
2026-07-08 CSN8874 - Jul 8, 04:35 UTCJul 8, 10:50 UTC6h 15m
2026-07-06 CSN3602 - Jul 6, 14:20 UTCJul 7, 10:10 UTC19h 50m
2026-07-06 CSN6310 - Jul 6, 13:05 UTCJul 7, 10:10 UTC21h 5m
2026-07-06 CSN6310 - Jul 6, 11:40 UTCJul 6, 11:50 UTC10m
2026-07-06 CSN6309 - Jul 6, 07:45 UTCJul 6, 08:00 UTC15m
2026-07-05 CSN6309 - Jul 5, 12:55 UTCJul 6, 05:10 UTC16h 15m
2026-07-05 CSN6367 - Jul 5, 03:10 UTCJul 5, 13:40 UTC10h 30m
2026-07-04 CSN6402 - Jul 4, 10:00 UTCJul 5, 03:20 UTC17h 20m
2026-07-03 CSN5817 - Jul 3, 01:55 UTCJul 3, 09:25 UTC7h 30m
2026-07-02 CSN5817 - Jul 2, 07:00 UTCJul 3, 02:05 UTC19h 5m
2026-07-01 CSN6312 - Jul 1, 08:25 UTCJul 2, 07:15 UTC22h 50m
2026-07-01 CSN6312 - Jul 1, 06:00 UTCJul 1, 06:15 UTC15m
2026-07-01 CSN6311 - Jul 1, 03:35 UTCJul 1, 03:50 UTC15m
2026-06-30 CSN6311 - Jun 30, 13:00 UTCJul 1, 01:15 UTC12h 15m
2026-06-30 CSN6310 - Jun 30, 10:45 UTCJun 30, 10:55 UTC10m
2026-06-30 CSN6309 - Jun 30, 07:55 UTCJun 30, 08:15 UTC20m
2026-06-30 CSN6309 - Jun 30, 05:15 UTCJun 30, 05:35 UTC20m
2026-06-29 CSN682 - Jun 29, 04:20 UTCJun 29, 04:45 UTC25m
2026-06-28 CSN681 - Jun 28, 08:29 UTCJun 29, 02:09 UTC17h 40m
2026-06-28 CSN3602 - Jun 28, 00:30 UTCJun 28, 15:44 UTC15h 15m
2026-06-27 CSN6265 - Jun 27, 07:30 UTCJun 28, 00:30 UTC17h 0m
2026-06-26 CSN6265 - Jun 26, 08:50 UTCJun 27, 07:39 UTC22h 50m
2026-06-25 CSN3601 CAN → SHE Jun 25, 18:24 UTCJun 26, 01:15 UTC6h 50m
2026-06-25 CSN3602 - Jun 25, 08:30 UTCJun 25, 08:40 UTC10m
2026-06-24 CSN5817 - Jun 24, 06:45 UTCJun 25, 01:19 UTC18h 35m
2026-06-23 CSN6312 - Jun 23, 08:15 UTCJun 24, 06:45 UTC22h 30m
2026-06-23 CSN6312 - Jun 23, 05:54 UTCJun 23, 06:15 UTC20m
2026-06-22 CSN6461 - Jun 22, 08:19 UTCJun 23, 01:20 UTC17h 0m

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-32GR page for operator, model, and routing details .

Mode-S 7820C0 frequently asked

What is Mode-S code 7820C0?
7820C0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32GR.
Where is Mode-S 7820C0 registered?
Mode-S code 7820C0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820C0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 08:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820C0, octal 36020300, decimal 7,872,704.
What flights does 7820C0 operate?
Mode-S 7820C0 has broadcast 20 distinct callsigns, including CSN6309, CSN6310, CSN681, CSN682, CSN6312.