Apparatus

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sensors Mode-S transponder

7815C4

ICAO 24-bit transponder address · allocated to China

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

Hex
7815C4
Octal
36012704
Decimal
7,869,892
Country
CN
Tail
B-305J
Type
A20N
No current signal · last broadcast 4d ago
Flights observed
86
Distinct callsigns
20
Country
CN
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 7815C4.

Country allocation

The ICAO 24-bit address 7815C4 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
CCA4166 - 12 2026-07-07
CCA4162 - 11 2026-07-07
CCA4165 - 5 2026-07-07
CCA1470 - 5 2026-06-06
CCA1469 - 4 2026-06-05
CCA4186 Air China 3 2026-06-11
CCA4164 - 3 2026-07-08
CCA1895 Air China 3 2026-06-04
CCA4336 Air China 2 2026-04-20
CCA2742 - 2 2026-07-14
CCA1917 Air China 2 2026-06-07
CCA1424 Air China 2 2026-05-27
CCA1423 Air China 2 2026-05-06
CCA1414 Air China 2 2026-06-08
CCA9672 Air China 1 2026-05-04
CCA9671 Air China 1 2026-05-04
CCA8212 Air China 1 2026-06-07
CCA4335 Air China 1 2026-04-20
CCA4314 Air China 1 2026-04-18
CCA4312 Air China 1 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 CCA2712 - Jul 16, 10:29 UTCJul 16, 14:10 UTC3h 40m
2026-07-14 CCA2742 - Jul 14, 13:40 UTCJul 15, 05:45 UTC16h 4m
2026-07-14 CCA2742 - Jul 14, 10:25 UTCJul 15, 05:45 UTC19h 19m
2026-07-08 CCA4164 - Jul 8, 05:30 UTCJul 8, 05:55 UTC25m
2026-07-07 CCA4166 - Jul 7, 15:15 UTCJul 7, 15:35 UTC20m
2026-07-07 CCA4165 - Jul 7, 11:35 UTCJul 7, 11:50 UTC15m
2026-07-07 CCA4162 - Jul 7, 03:30 UTCJul 7, 03:50 UTC20m
2026-07-06 CCA4166 - Jul 6, 14:50 UTCJul 6, 15:10 UTC20m
2026-07-01 CCA4162 - Jul 1, 03:25 UTCJul 1, 03:45 UTC20m
2026-06-30 CCA4166 - Jun 30, 13:55 UTCJun 30, 14:15 UTC20m
2026-06-30 CCA4165 - Jun 30, 11:55 UTCJun 30, 12:15 UTC20m
2026-06-30 CCA4162 - Jun 30, 03:20 UTCJun 30, 03:40 UTC20m
2026-06-29 CCA4162 - Jun 29, 03:10 UTCJun 29, 03:34 UTC25m
2026-06-28 CCA4166 - Jun 28, 14:45 UTCJun 28, 15:05 UTC20m
2026-06-28 CCA1458 - Jun 28, 12:15 UTCJun 28, 12:39 UTC25m
2026-06-28 CCA1457 - Jun 28, 07:20 UTCJun 28, 07:34 UTC15m
2026-06-28 CCA1575 - Jun 28, 01:19 UTCJun 28, 01:29 UTC10m
2026-06-27 CCA4165 - Jun 27, 11:25 UTCJun 27, 11:35 UTC10m
2026-06-27 CCA4162 - Jun 27, 03:15 UTCJun 27, 03:30 UTC15m
2026-06-26 CCA4166 - Jun 26, 13:40 UTCJun 26, 14:05 UTC25m
2026-06-26 CCA4165 - Jun 26, 11:14 UTCJun 26, 11:24 UTC10m
2026-06-26 CCA4162 - Jun 26, 03:10 UTCJun 26, 03:29 UTC20m
2026-06-25 CCA4166 - Jun 25, 13:45 UTCJun 25, 14:09 UTC25m
2026-06-23 CCA4166 - Jun 23, 13:29 UTCJun 23, 13:50 UTC20m
2026-06-23 CCA4162 - Jun 23, 03:15 UTCJun 23, 03:39 UTC25m
2026-06-22 CCA4166 - Jun 22, 13:59 UTCJun 22, 14:24 UTC25m
2026-06-22 CCA4162 - Jun 22, 03:35 UTCJun 22, 03:50 UTC15m
2026-06-21 CCA4166 - Jun 21, 13:50 UTCJun 21, 14:10 UTC20m
2026-06-21 CCA4165 - Jun 21, 11:05 UTCJun 21, 11:15 UTC10m
2026-06-20 CCA4166 - Jun 20, 13:24 UTCJun 20, 13:44 UTC20m
2026-06-11 CCA4186 PEK → CTU Jun 11, 02:20 UTCJun 11, 02:40 UTC20m
2026-06-10 CCA1647 PEK → CGQ Jun 10, 11:30 UTCJun 10, 11:45 UTC15m
2026-06-09 CCA1461 PEK → KWE Jun 9, 23:15 UTCJun 9, 23:35 UTC20m
2026-06-08 CCA1369 PEK → SYX Jun 8, 23:45 UTCJun 9, 00:05 UTC20m
2026-06-08 CCA1414 KMG → PEK Jun 8, 07:50 UTCJun 8, 14:55 UTC7h 5m
2026-06-07 CCA1917 PEK → LZH Jun 7, 23:10 UTCJun 7, 23:30 UTC20m
2026-06-07 CCA8212 PEK → WUH Jun 7, 10:00 UTCJun 7, 10:25 UTC25m
2026-06-06 CCA1917 PEK → LZH Jun 6, 23:09 UTCJun 6, 23:35 UTC25m
2026-06-06 CCA1470 - Jun 6, 06:15 UTCJun 6, 06:40 UTC25m
2026-06-05 CCA1469 - Jun 5, 23:35 UTCJun 6, 00:00 UTC25m
2026-06-04 CCA1469 - Jun 4, 23:10 UTCJun 5, 06:45 UTC7h 35m
2026-06-04 CCA1895 PEK → SQD Jun 4, 00:20 UTCJun 4, 00:30 UTC10m
2026-06-03 CCA1895 PEK → SQD Jun 3, 00:05 UTCJun 3, 00:15 UTC10m
2026-06-02 CCA1414 KMG → PEK Jun 2, 14:40 UTCJun 2, 15:00 UTC20m
2026-05-30 CCA1222 LHW → PEK May 30, 13:10 UTCMay 30, 13:25 UTC15m
2026-05-30 CCA1221 PEK → LHW May 30, 08:55 UTCMay 30, 09:20 UTC25m
2026-05-29 CCA1470 - May 29, 23:05 UTCMay 30, 06:40 UTC7h 35m
2026-05-29 CCA1140 YCU → PEK May 29, 13:15 UTCMay 29, 13:30 UTC15m
2026-05-29 CCA1139 PEK → YCU May 29, 09:50 UTCMay 29, 10:10 UTC20m
2026-05-28 CCA1470 - May 28, 23:15 UTCMay 29, 06:55 UTC7h 40m

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

Mode-S 7815C4 frequently asked

What is Mode-S code 7815C4?
7815C4 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-305J.
Where is Mode-S 7815C4 registered?
Mode-S code 7815C4 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815C4 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815C4, octal 36012704, decimal 7,869,892.
What flights does 7815C4 operate?
Mode-S 7815C4 has broadcast 20 distinct callsigns, including CCA4166, CCA4162, CCA4165, CCA1470, CCA1469.