Apparatus

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sensors Mode-S transponder

7815D2

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-305E · AIRBUS A-320neo

Hex
7815D2
Octal
36012722
Decimal
7,869,906
Country
CN
Tail
B-305E
Type
A20N
No current signal · last broadcast 21h ago
Flights observed
141
Distinct callsigns
20
Country
CN
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 7815D2.

Country allocation

The ICAO 24-bit address 7815D2 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
CSN6347 China Southern Airlines 7 2026-05-19
CSN3621 - 7 2026-06-29
CSN652 - 6 2026-06-26
CSN6469 - 6 2026-07-17
CSN6310 - 6 2026-07-13
CSN666 China Southern Airlines 4 2026-06-15
CSN665 - 4 2026-06-15
CSN6403 China Southern Airlines 4 2026-05-28
CSN6388 China Southern Airlines 4 2026-05-30
CSN6315 - 4 2026-06-23
CSN6309 - 4 2026-07-13
CSN6253 - 4 2026-06-20
CSN8611 - 3 2026-06-19
CSN8598 - 3 2026-06-18
CSN8597 - 3 2026-06-18
CSN651 - 3 2026-06-26
CSN6387 China Southern Airlines 3 2026-05-30
CSN6304 - 3 2026-06-20
CSN6303 - 3 2026-06-27
CSN6301 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSN6469 - Jul 17, 04:54 UTCJul 17, 11:00 UTC6h 5m
2026-07-16 CSN6469 - Jul 16, 10:55 UTCJul 17, 05:20 UTC18h 25m
2026-07-16 CSN6469 - Jul 16, 02:10 UTCJul 16, 10:59 UTC8h 50m
2026-07-15 CSN6469 - Jul 15, 07:25 UTCJul 16, 05:40 UTC22h 15m
2026-07-15 CSN6517 - Jul 15, 02:50 UTCJul 16, 02:10 UTC23h 20m
2026-07-14 CSN6380 - Jul 14, 15:35 UTCJul 15, 07:25 UTC15h 49m
2026-07-13 CSN6310 - Jul 13, 12:10 UTCJul 13, 12:20 UTC10m
2026-07-13 CSN6310 - Jul 13, 09:45 UTCJul 13, 10:00 UTC15m
2026-07-13 CSN6309 - Jul 13, 02:15 UTCJul 13, 06:01 UTC3h 45m
2026-07-12 CSN6309 - Jul 12, 09:50 UTCJul 13, 06:01 UTC20h 10m
2026-07-11 CSN6152 - Jul 11, 04:05 UTCJul 11, 04:15 UTC10m
2026-07-10 CSN6152 - Jul 10, 08:20 UTCJul 11, 04:15 UTC19h 55m
2026-07-10 CSN6152 - Jul 10, 05:20 UTCJul 11, 04:15 UTC22h 55m
2026-07-09 CSN6302 - Jul 9, 08:10 UTCJul 10, 05:25 UTC21h 15m
2026-07-09 CSN6301 - Jul 9, 00:55 UTCJul 9, 08:20 UTC7h 25m
2026-07-08 CSN6301 - Jul 8, 04:10 UTCJul 9, 01:05 UTC20h 55m
2026-07-07 CSN6469 - Jul 7, 05:05 UTCJul 8, 04:10 UTC23h 5m
2026-07-06 CSN6469 - Jul 6, 10:05 UTCJul 7, 05:30 UTC19h 25m
2026-07-05 CSN6310 - Jul 5, 09:55 UTCJul 5, 10:05 UTC10m
2026-07-05 CSN6309 - Jul 5, 08:05 UTCJul 5, 08:15 UTC10m
2026-07-04 CSN6309 - Jul 4, 15:05 UTCJul 5, 05:40 UTC14h 35m
2026-07-03 CSN5366 - Jul 3, 10:05 UTCJul 4, 02:00 UTC15h 55m
2026-07-01 CSN6310 - Jul 1, 12:00 UTCJul 2, 01:55 UTC13h 55m
2026-07-01 CSN6310 - Jul 1, 09:40 UTCJul 1, 09:50 UTC10m
2026-07-01 CSN3650 - Jul 1, 06:00 UTCJul 1, 06:15 UTC15m
2026-06-30 CSN3649 - Jun 30, 22:40 UTCJun 30, 22:50 UTC10m
2026-06-30 CSN3271 - Jun 30, 08:00 UTCJun 30, 08:15 UTC15m
2026-06-30 CSN3566 - Jun 30, 05:40 UTCJun 30, 05:55 UTC15m
2026-06-30 CSN3565 - Jun 30, 01:19 UTCJun 30, 01:30 UTC11m
2026-06-29 CSN8700 - Jun 29, 15:45 UTCJun 29, 15:54 UTC10m
2026-06-29 CSN8699 - Jun 29, 10:04 UTCJun 29, 10:15 UTC10m
2026-06-29 CSN3621 - Jun 29, 01:34 UTCJun 29, 01:44 UTC10m
2026-06-28 CSN8086 HAN → SZX Jun 28, 15:24 UTCJun 28, 15:44 UTC20m
2026-06-28 CSN8085 SZX → HAN Jun 28, 11:50 UTCJun 28, 12:39 UTC50m
2026-06-28 CSN8085 SZX → HAN Jun 28, 11:04 UTCJun 28, 11:19 UTC15m
2026-06-28 CSN3621 - Jun 28, 01:50 UTCJun 28, 02:44 UTC55m
2026-06-27 CSN3956 - Jun 27, 17:59 UTCJun 27, 18:24 UTC25m
2026-06-27 CSN3955 - Jun 27, 13:15 UTCJun 27, 13:24 UTC10m
2026-06-27 CSN6303 - Jun 27, 08:44 UTCJun 27, 09:00 UTC15m
2026-06-27 CSN8874 PKX → SHE Jun 27, 04:34 UTCJun 27, 04:44 UTC10m
2026-06-26 CSN652 - Jun 26, 03:00 UTCJun 26, 12:44 UTC9h 45m
2026-06-26 CSN651 - Jun 26, 00:45 UTCJun 26, 01:10 UTC25m
2026-06-24 CSN6340 CAN → SHE Jun 24, 02:45 UTCJun 24, 13:14 UTC10h 30m
2026-06-23 CSN6315 - Jun 23, 11:49 UTCJun 24, 06:25 UTC18h 35m
2026-06-23 CSN6315 - Jun 23, 08:00 UTCJun 24, 06:25 UTC22h 25m
2026-06-22 CSN6301 - Jun 22, 14:40 UTCJun 23, 11:59 UTC21h 20m
2026-06-22 CSN5363 - Jun 22, 07:10 UTCJun 23, 01:10 UTC18h 0m
2026-06-21 CSN6517 - Jun 21, 04:34 UTCJun 21, 04:44 UTC10m
2026-06-20 CSN6304 - Jun 20, 15:29 UTCJun 21, 03:00 UTC11h 30m
2026-06-20 CSN6304 - Jun 20, 13:09 UTCJun 20, 13:19 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-305E page for operator, model, and routing details .

Mode-S 7815D2 frequently asked

What is Mode-S code 7815D2?
7815D2 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-305E.
Where is Mode-S 7815D2 registered?
Mode-S code 7815D2 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815D2 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815D2, octal 36012722, decimal 7,869,906.
What flights does 7815D2 operate?
Mode-S 7815D2 has broadcast 20 distinct callsigns, including CSN6347, CSN3621, CSN652, CSN6469, CSN6310.