Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7815D1

ICAO 24-bit transponder address · allocated to China

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

Hex
7815D1
Octal
36012721
Decimal
7,869,905
Country
CN
Tail
B-305D
Type
A20N
No current signal · last broadcast 2d ago
Flights observed
59
Distinct callsigns
17
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 7815D1.

Country allocation

The ICAO 24-bit address 7815D1 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 17 distinct

Callsign Airline Flights Last seen
CSN5049 - 20 2026-06-21
CSN5050 - 16 2026-06-21
CSN8360 China Southern Airlines 4 2026-06-11
CSN8359 China Southern Airlines 4 2026-06-11
CSN6929 - 2 2026-07-08
CSN3065 - 2 2026-06-16
CSN8750 - 1 2026-07-07
CSN8749 - 1 2026-07-07
CSN8641 - 1 2026-07-17
CSN8523 China Southern Airlines 1 2026-07-01
CSN8234 - 1 2026-07-14
CSN6930 - 1 2026-07-05
CSN6177 - 1 2026-07-16
CSN5807 - 1 2026-07-04
CSN5113 China Southern Airlines 1 2026-06-23
CSN3943 - 1 2026-06-28
CSN3066 China Southern Airlines 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CSN8641 - Jul 17, 10:10 UTCJul 17, 14:44 UTC4h 35m
2026-07-16 CSN6177 - Jul 16, 02:10 UTCJul 16, 02:30 UTC20m
2026-07-14 CSN8234 - Jul 14, 12:45 UTCJul 15, 02:10 UTC13h 24m
2026-07-08 CSN6929 - Jul 8, 09:10 UTCJul 8, 13:30 UTC4h 20m
2026-07-07 CSN8750 - Jul 7, 14:40 UTCJul 7, 14:50 UTC10m
2026-07-07 CSN8749 - Jul 7, 07:45 UTCJul 7, 07:55 UTC10m
2026-07-05 CSN6930 - Jul 5, 09:40 UTCJul 5, 14:50 UTC5h 10m
2026-07-04 CSN5807 - Jul 4, 03:15 UTCJul 4, 03:25 UTC10m
2026-07-01 CSN8523 CSX → SHE Jul 1, 09:45 UTCJul 1, 09:55 UTC10m
2026-06-28 CSN3943 - Jun 28, 12:39 UTCJun 28, 12:55 UTC15m
2026-06-23 CSN5113 CSX → SYX Jun 23, 01:35 UTCJun 23, 01:50 UTC15m
2026-06-21 CSN5050 - Jun 21, 08:54 UTCJun 22, 02:00 UTC17h 5m
2026-06-21 CSN5049 - Jun 21, 02:45 UTCJun 21, 06:19 UTC3h 35m
2026-06-18 CSN5050 - Jun 18, 08:15 UTCJun 18, 11:15 UTC3h 0m
2026-06-18 CSN5049 - Jun 18, 03:25 UTCJun 18, 06:40 UTC3h 15m
2026-06-16 CSN3066 ICN → CSX Jun 16, 05:10 UTCJun 16, 05:55 UTC45m
2026-06-16 CSN3065 - Jun 16, 02:34 UTCJun 16, 03:15 UTC40m
2026-06-11 CSN8360 HAN → CSX Jun 11, 14:20 UTCJun 11, 14:40 UTC20m
2026-06-11 CSN8359 CSX → HAN Jun 11, 12:00 UTCJun 11, 12:15 UTC15m
2026-06-08 CSN5050 KUL → CSX Jun 8, 19:40 UTCJun 8, 20:00 UTC20m
2026-06-08 CSN5049 CSX → KUL Jun 8, 02:50 UTCJun 8, 17:45 UTC14h 55m
2026-06-07 CSN8360 HAN → CSX Jun 7, 15:10 UTCJun 8, 02:55 UTC11h 45m
2026-06-07 CSN8359 CSX → HAN Jun 7, 12:05 UTCJun 7, 12:20 UTC15m
2026-06-06 CSN5050 KUL → CSX Jun 6, 18:55 UTCJun 6, 21:54 UTC3h 0m
2026-06-06 CSN5049 CSX → KUL Jun 6, 02:45 UTCJun 6, 17:29 UTC14h 45m
2026-06-04 CSN5050 KUL → CSX Jun 4, 21:35 UTCJun 4, 21:45 UTC10m
2026-06-04 CSN5050 KUL → CSX Jun 4, 19:05 UTCJun 4, 19:20 UTC15m
2026-06-04 CSN5049 CSX → KUL Jun 4, 14:10 UTCJun 4, 17:35 UTC3h 25m
2026-06-03 CSN8360 HAN → CSX Jun 3, 15:10 UTCJun 4, 14:15 UTC23h 5m
2026-06-02 CSN8359 CSX → HAN Jun 2, 18:50 UTCJun 3, 13:20 UTC18h 30m
2026-06-02 CSN5049 CSX → KUL Jun 2, 17:05 UTCJun 2, 17:30 UTC25m
2026-06-02 CSN5049 CSX → KUL Jun 2, 14:05 UTCJun 2, 14:20 UTC15m
2026-05-28 CSN5050 KUL → CSX May 28, 19:10 UTCMay 28, 22:15 UTC3h 5m
2026-05-28 CSN5049 CSX → KUL May 28, 14:10 UTCMay 28, 17:35 UTC3h 25m
2026-05-27 CSN8360 HAN → CSX May 27, 14:35 UTCMay 28, 14:15 UTC23h 40m
2026-05-26 CSN8359 CSX → HAN May 26, 19:05 UTCMay 27, 12:50 UTC17h 45m
2026-05-26 CSN5049 CSX → KUL May 26, 14:05 UTCMay 26, 17:35 UTC3h 30m
2026-05-24 CSN5050 KUL → CSX May 24, 19:20 UTCMay 24, 19:35 UTC15m
2026-05-24 CSN5049 CSX → KUL May 24, 14:05 UTCMay 24, 17:30 UTC3h 25m
2026-05-22 CSN5050 KUL → CSX May 22, 19:00 UTCMay 22, 19:20 UTC20m
2026-05-22 CSN5049 CSX → KUL May 22, 14:10 UTCMay 22, 17:40 UTC3h 30m
2026-05-16 CSN5050 KUL → CSX May 16, 19:05 UTCMay 16, 19:25 UTC20m
2026-05-16 CSN5049 CSX → KUL May 16, 05:00 UTCMay 16, 17:35 UTC12h 36m
2026-05-16 CSN3065 CSX → ICN May 16, 02:40 UTCMay 16, 03:15 UTC35m
2026-05-12 CSN5050 KUL → CSX May 12, 19:10 UTCMay 12, 19:25 UTC15m
2026-05-12 CSN5049 CSX → KUL May 12, 14:05 UTCMay 12, 17:20 UTC3h 15m
2026-05-05 CSN5050 KUL → CSX May 5, 19:20 UTCMay 5, 19:35 UTC15m
2026-05-05 CSN5049 CSX → KUL May 5, 14:15 UTCMay 5, 17:35 UTC3h 20m
2026-05-02 CSN6929 CSX → HRB May 2, 08:50 UTCMay 2, 13:30 UTC4h 40m
2026-04-25 CSN5050 KUL → CSX Apr 25, 18:55 UTCApr 25, 20:15 UTC1h 20m

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-305D page for operator, model, and routing details .

Mode-S 7815D1 frequently asked

What is Mode-S code 7815D1?
7815D1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-305D.
Where is Mode-S 7815D1 registered?
Mode-S code 7815D1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815D1 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815D1, octal 36012721, decimal 7,869,905.
What flights does 7815D1 operate?
Mode-S 7815D1 has broadcast 17 distinct callsigns, including CSN5049, CSN5050, CSN8360, CSN8359, CSN6929.