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 12h ago
Flights observed
46
Distinct callsigns
20
Country
CN
Last broadcast
12h 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
CCA1470 - 4 2026-05-29
CCA4162 Air China 3 2026-05-02
CCA1895 Air China 3 2026-06-04
CCA1469 - 3 2026-06-04
CCA4336 Air China 2 2026-04-20
CCA4186 Air China 2 2026-05-07
CCA4166 Air China 2 2026-05-01
CCA4164 Air China 2 2026-04-29
CCA1424 Air China 2 2026-05-27
CCA1423 Air China 2 2026-05-06
CCA9672 Air China 1 2026-05-04
CCA9671 Air China 1 2026-05-04
CCA4335 Air China 1 2026-04-20
CCA4314 Air China 1 2026-04-18
CCA4312 Air China 1 2026-05-10
CCA4311 Air China 1 2026-05-20
CCA4185 Air China 1 2026-04-21
CCA4184 Air China 1 2026-04-24
CCA4102 Air China 1 2026-05-19
CCA1957 Air China 1 2026-05-04

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
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
2026-05-28 CCA1325 PEK → CSX May 28, 10:00 UTCMay 28, 10:25 UTC25m
2026-05-28 CCA1470 - May 28, 06:15 UTCMay 28, 06:45 UTC30m
2026-05-27 CCA1469 - May 27, 23:05 UTCMay 27, 23:25 UTC20m
2026-05-27 CCA1424 JHG → PEK May 27, 06:49 UTCMay 27, 15:05 UTC8h 15m
2026-05-24 - - May 24, 08:10 UTCMay 24, 08:20 UTC10m
2026-05-20 CCA4311 CTU → SZX May 20, 09:35 UTCMay 20, 09:50 UTC15m
2026-05-19 CCA4102 PEK → CTU May 19, 05:30 UTCMay 19, 05:55 UTC25m
2026-05-10 CCA4312 SZX → CTU May 10, 10:55 UTCMay 10, 11:10 UTC15m
2026-05-07 CCA4186 PEK → CTU May 7, 02:25 UTCMay 7, 02:45 UTC20m
2026-05-06 CCA1424 JHG → PEK May 6, 15:00 UTCMay 6, 15:20 UTC20m
2026-05-06 CCA1423 PEK → JHG May 6, 06:40 UTCMay 6, 07:10 UTC30m
2026-05-06 CCA1895 PEK → SQD May 6, 00:01 UTCMay 6, 00:15 UTC15m
2026-05-05 CCA1460 - May 5, 16:06 UTCMay 5, 16:20 UTC15m
2026-05-05 CCA1459 - May 5, 09:00 UTCMay 5, 09:20 UTC20m
2026-05-05 CCA1470 - May 5, 06:50 UTCMay 5, 07:10 UTC20m
2026-05-04 CCA1469 - May 4, 23:15 UTCMay 4, 23:40 UTC25m
2026-05-04 CCA1957 PEK → HUZ May 4, 09:50 UTCMay 4, 10:00 UTC10m
2026-05-04 CCA9672 HRB → SHA May 4, 06:35 UTCMay 4, 06:50 UTC15m
2026-05-04 CCA9671 SHA → HRB May 4, 00:00 UTCMay 4, 00:19 UTC20m
2026-05-03 CCA1843 PEK → HFE May 3, 05:35 UTCMay 3, 05:45 UTC10m
2026-05-02 CCA4162 PEK → KWE May 2, 03:05 UTCMay 2, 03:30 UTC25m
2026-05-01 CCA4166 PEK → KWE May 1, 13:45 UTCMay 1, 14:15 UTC30m
2026-05-01 CCA4162 PEK → KWE May 1, 03:15 UTCMay 1, 03:45 UTC30m
2026-04-29 CCA4164 PEK → KWE Apr 29, 05:09 UTCApr 29, 05:35 UTC25m
2026-04-27 CCA4164 PEK → KWE Apr 27, 05:30 UTCApr 27, 05:55 UTC25m
2026-04-25 CCA4166 PEK → KWE Apr 25, 13:30 UTCApr 25, 14:00 UTC30m
2026-04-25 CCA4162 PEK → KWE Apr 25, 03:15 UTCApr 25, 03:35 UTC20m
2026-04-24 CCA4184 PEK → CTU Apr 24, 01:15 UTCApr 24, 01:40 UTC25m
2026-04-23 CCA4186 PEK → CTU Apr 23, 02:20 UTCApr 23, 02:40 UTC20m
2026-04-22 CCA1423 PEK → JHG Apr 22, 07:00 UTCApr 22, 15:30 UTC8h 30m
2026-04-21 CCA1453 - Apr 21, 23:45 UTCApr 21, 23:55 UTC10m
2026-04-21 CCA4185 CTU → PEK Apr 21, 14:10 UTCApr 21, 14:20 UTC10m
2026-04-20 CCA4336 SZX → CTU Apr 20, 13:45 UTCApr 20, 13:55 UTC10m
2026-04-20 CCA4335 CTU → SZX Apr 20, 11:55 UTCApr 20, 12:05 UTC10m
2026-04-19 CCA4336 SZX → CTU Apr 19, 13:40 UTCApr 19, 13:55 UTC15m
2026-04-18 CCA4314 SZX → CTU Apr 18, 09:40 UTCApr 18, 09:50 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-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 12h 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 CCA1470, CCA4162, CCA1895, CCA1469, CCA4336.