Apparatus

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sensors Mode-S transponder

7815DF

ICAO 24-bit transponder address · allocated to China

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

Hex
7815DF
Octal
36012737
Decimal
7,869,919
Country
CN
Tail
B-305Q
Type
A20N
No current signal · last broadcast Jul 25, 18:55 UTC
Flights observed
80
Distinct callsigns
19
Country
CN
Last broadcast
Jul 25, 18:55 UTC

Last known position

Most recent position reported by Mode-S 7815DF.

Country allocation

The ICAO 24-bit address 7815DF 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 19 distinct

Callsign Airline Flights Last seen
CQN2362 Chongqing Airlines 13 2026-07-23
CQN2096 - 12 2026-06-24
CQN2361 Chongqing Airlines 11 2026-07-23
CQN2095 - 11 2026-06-24
CQN2393 - 4 2026-07-04
CQN2336 - 4 2026-07-02
CQN2193 Chongqing Airlines 4 2026-07-25
CQN2394 Chongqing Airlines 3 2026-05-05
CQN2194 Chongqing Airlines 3 2026-07-25
CQN2062 Chongqing Airlines 3 2026-05-29
CQN2061 Chongqing Airlines 3 2026-05-29
CQN2346 - 2 2026-07-17
CQN2345 - 1 2026-07-17
CQN2331 - 1 2026-07-01
CQN2154 - 1 2026-06-03
CQN2111 - 1 2026-06-20
CQN2074 - 1 2026-05-25
CQN2006 - 1 2026-07-23
CQN2002 - 1 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CQN2194 BKI → CKG Jul 25, 16:30 UTCJul 25, 18:55 UTC2h 25m
2026-07-25 CQN2193 CKG → BKI Jul 25, 14:55 UTCJul 25, 15:15 UTC20m
2026-07-25 CQN2002 - Jul 25, 02:25 UTCJul 25, 14:05 UTC11h 40m
2026-07-23 CQN2006 - Jul 23, 19:50 UTCJul 24, 15:25 UTC19h 35m
2026-07-23 CQN2362 BKK → CKG Jul 23, 18:50 UTCJul 24, 15:25 UTC20h 35m
2026-07-23 CQN2361 CKG → BKK Jul 23, 15:50 UTCJul 23, 17:05 UTC1h 15m
2026-07-22 CQN2362 BKK → CKG Jul 22, 18:20 UTCJul 23, 17:05 UTC22h 45m
2026-07-22 CQN2361 CKG → BKK Jul 22, 15:25 UTCJul 22, 16:50 UTC1h 25m
2026-07-20 CQN2362 - Jul 20, 18:10 UTCJul 20, 19:30 UTC1h 20m
2026-07-20 CQN2361 CKG → BKK Jul 20, 15:30 UTCJul 20, 16:50 UTC1h 20m
2026-07-18 CQN2194 - Jul 18, 16:40 UTCJul 19, 03:30 UTC10h 50m
2026-07-18 CQN2193 CKG → BKI Jul 18, 15:00 UTCJul 18, 15:15 UTC15m
2026-07-18 CQN2193 CKG → BKI Jul 18, 12:40 UTCJul 18, 13:05 UTC25m
2026-07-17 CQN2346 - Jul 17, 13:10 UTCJul 17, 13:25 UTC15m
2026-07-17 CQN2345 - Jul 17, 11:10 UTCJul 17, 11:20 UTC10m
2026-07-07 CQN2362 - Jul 7, 18:25 UTCJul 7, 19:45 UTC1h 20m
2026-07-07 CQN2361 - Jul 7, 15:20 UTCJul 7, 16:40 UTC1h 20m
2026-07-04 CQN2393 - Jul 4, 06:10 UTCJul 4, 20:15 UTC14h 5m
2026-07-02 CQN2336 - Jul 2, 03:40 UTCJul 2, 03:50 UTC10m
2026-07-01 CQN2331 - Jul 1, 11:35 UTCJul 1, 14:40 UTC3h 5m
2026-06-24 CQN2096 - Jun 24, 06:45 UTCJun 24, 09:49 UTC3h 5m
2026-06-24 CQN2095 - Jun 24, 01:44 UTCJun 24, 04:44 UTC3h 0m
2026-06-20 CQN2111 - Jun 20, 10:44 UTCJun 20, 11:20 UTC35m
2026-06-18 CQN2362 - Jun 18, 18:30 UTCJun 18, 19:00 UTC30m
2026-06-18 CQN2096 - Jun 18, 07:30 UTCJun 18, 16:55 UTC9h 25m
2026-06-18 CQN2095 - Jun 18, 02:00 UTCJun 18, 04:55 UTC2h 55m
2026-06-16 CQN2362 - Jun 16, 18:25 UTCJun 16, 18:50 UTC25m
2026-06-16 CQN2096 - Jun 16, 06:45 UTCJun 16, 16:45 UTC10h 0m
2026-06-16 CQN2095 CKG → SIN Jun 16, 01:55 UTCJun 16, 04:45 UTC2h 50m
2026-06-14 CQN2096 SIN → CKG Jun 14, 06:55 UTCJun 14, 10:05 UTC3h 10m
2026-06-14 CQN2095 CKG → SIN Jun 14, 05:00 UTCJun 14, 05:10 UTC10m
2026-06-13 CQN2194 BKI → CKG Jun 13, 16:45 UTCJun 14, 02:50 UTC10h 5m
2026-06-13 CQN2193 CKG → BKI Jun 13, 13:00 UTCJun 13, 15:40 UTC2h 40m
2026-06-10 CQN2096 SIN → CKG Jun 10, 06:50 UTCJun 10, 15:05 UTC8h 15m
2026-06-10 CQN2095 CKG → SIN Jun 10, 04:45 UTCJun 10, 04:55 UTC10m
2026-06-10 CQN2095 CKG → SIN Jun 10, 01:55 UTCJun 10, 02:30 UTC35m
2026-06-09 CQN2336 - Jun 9, 03:35 UTCJun 9, 03:45 UTC10m
2026-06-07 CQN2096 SIN → CKG Jun 7, 06:55 UTCJun 7, 10:05 UTC3h 10m
2026-06-07 CQN2095 CKG → SIN Jun 7, 02:35 UTCJun 7, 05:20 UTC2h 45m
2026-06-05 CQN2096 SIN → CKG Jun 5, 09:35 UTCJun 5, 10:05 UTC30m
2026-06-05 CQN2096 SIN → CKG Jun 5, 06:50 UTCJun 5, 07:20 UTC30m
2026-06-04 CQN2095 CKG → SIN Jun 4, 09:50 UTCJun 5, 05:00 UTC19h 10m
2026-06-04 CQN2095 CKG → SIN Jun 4, 09:35 UTCJun 5, 05:00 UTC19h 25m
2026-06-04 CQN2096 SIN → CKG Jun 4, 06:45 UTCJun 5, 05:00 UTC22h 15m
2026-06-04 CQN2095 CKG → SIN Jun 4, 01:55 UTCJun 4, 02:20 UTC25m
2026-06-03 CQN2154 - Jun 3, 08:40 UTCJun 3, 08:50 UTC10m
2026-05-30 CQN2362 BKK → CKG May 30, 18:30 UTCMay 30, 19:20 UTC50m
2026-05-30 CQN2361 CKG → BKK May 30, 15:40 UTCMay 30, 16:35 UTC55m
2026-05-29 CQN2346 - May 29, 15:50 UTCMay 29, 16:05 UTC15m
2026-05-29 CQN2062 HKG → CKG May 29, 05:35 UTCMay 29, 05:50 UTC15m

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

Mode-S 7815DF frequently asked

What is Mode-S code 7815DF?
7815DF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-305Q.
Where is Mode-S 7815DF registered?
Mode-S code 7815DF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815DF broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 18:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815DF, octal 36012737, decimal 7,869,919.
What flights does 7815DF operate?
Mode-S 7815DF has broadcast 19 distinct callsigns, including CQN2362, CQN2096, CQN2361, CQN2095, CQN2393.