Apparatus

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sensors Mode-S transponder

7815C1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-305F · AIRBUS A-321neo

Hex
7815C1
Octal
36012701
Decimal
7,869,889
Country
CN
Tail
B-305F
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
128
Distinct callsigns
20
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7815C1.

Country allocation

The ICAO 24-bit address 7815C1 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
CCA1266 Air China 6 2026-07-24
CCA1265 Air China 6 2026-07-24
CCA1377 Air China 5 2026-07-25
CCA1369 - 5 2026-07-18
CCA1131 - 5 2026-07-13
CCA1353 - 4 2026-06-30
CCA1311 Air China 4 2026-07-26
CCA1238 Air China 4 2026-07-25
CCA1237 Air China 4 2026-07-24
CCA1361 - 3 2026-07-21
CCA1292 - 3 2026-06-29
CCA1291 - 3 2026-06-29
CCA1704 - 2 2026-07-07
CCA1647 Air China 2 2026-05-26
CCA1643 - 2 2026-07-15
CCA1461 Air China 2 2026-07-21
CCA1407 - 2 2026-06-20
CCA1405 Air China 2 2026-06-23
CCA1354 - 2 2026-07-14
CCA1312 Air China 2 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CCA1312 NNG → PEK Jul 26, 08:35 UTCJul 26, 08:45 UTC10m
2026-07-26 CCA1311 PEK → NNG Jul 26, 01:35 UTCJul 26, 01:55 UTC20m
2026-07-25 CCA1377 PEK → SYX Jul 25, 08:00 UTCJul 25, 13:30 UTC5h 30m
2026-07-25 CCA1238 HMI → PEK Jul 25, 05:30 UTCJul 25, 05:50 UTC20m
2026-07-24 CCA1237 PEK → HMI Jul 24, 22:30 UTCJul 24, 22:45 UTC15m
2026-07-24 CCA1266 HMI → PEK Jul 24, 16:50 UTCJul 24, 17:10 UTC20m
2026-07-24 CCA1265 PEK → HMI Jul 24, 10:40 UTCJul 24, 10:55 UTC15m
2026-07-24 CCA1312 NNG → PEK Jul 24, 01:40 UTCJul 24, 08:35 UTC6h 55m
2026-07-22 CCA9843 - Jul 22, 22:35 UTCJul 22, 22:55 UTC20m
2026-07-22 CCA1544 - Jul 22, 11:20 UTCJul 22, 11:40 UTC20m
2026-07-21 CCA1461 PEK → KWE Jul 21, 23:10 UTCJul 21, 23:35 UTC25m
2026-07-21 CCA1361 - Jul 21, 00:50 UTCJul 21, 01:10 UTC20m
2026-07-20 CCA1622 HRB → PEK Jul 20, 16:25 UTCJul 20, 16:40 UTC15m
2026-07-19 CCA1265 - Jul 19, 10:30 UTCJul 19, 10:50 UTC20m
2026-07-19 CCA1433 PEK → KWE Jul 19, 01:40 UTCJul 19, 02:05 UTC25m
2026-07-18 CCA1266 HMI → PEK Jul 18, 17:00 UTCJul 18, 17:15 UTC15m
2026-07-18 CCA1265 - Jul 18, 10:45 UTCJul 18, 11:05 UTC20m
2026-07-18 CCA1370 - Jul 18, 08:35 UTCJul 18, 08:45 UTC10m
2026-07-18 CCA1369 - Jul 18, 00:00 UTCJul 18, 00:25 UTC25m
2026-07-17 CCA1230 XIY → PEK Jul 17, 12:50 UTCJul 17, 13:15 UTC25m
2026-07-17 CCA1229 PEK → XIY Jul 17, 08:54 UTCJul 17, 09:10 UTC15m
2026-07-17 CCA1290 - Jul 17, 05:39 UTCJul 17, 06:05 UTC25m
2026-07-17 CCA1289 - Jul 17, 01:15 UTCJul 17, 01:35 UTC20m
2026-07-16 CCA1266 - Jul 16, 16:35 UTCJul 16, 16:49 UTC15m
2026-07-16 CCA1265 - Jul 16, 10:25 UTCJul 16, 10:40 UTC15m
2026-07-15 CCA1643 - Jul 15, 00:25 UTCJul 15, 00:35 UTC10m
2026-07-14 CCA1354 - Jul 14, 06:50 UTCJul 14, 15:30 UTC8h 40m
2026-07-13 CCA1131 - Jul 13, 23:40 UTCJul 13, 23:55 UTC15m
2026-07-12 CCA1621 - Jul 12, 23:05 UTCJul 12, 23:15 UTC10m
2026-07-12 CCA1290 - Jul 12, 05:50 UTCJul 12, 06:10 UTC20m
2026-07-12 CCA1289 - Jul 12, 01:20 UTCJul 12, 01:40 UTC20m
2026-07-11 CCA1266 - Jul 11, 18:40 UTCJul 11, 18:55 UTC15m
2026-07-11 CCA1362 - Jul 11, 08:40 UTCJul 11, 08:50 UTC10m
2026-07-11 CCA1361 - Jul 11, 00:30 UTCJul 11, 00:55 UTC25m
2026-07-10 CCA1266 - Jul 10, 18:30 UTCJul 10, 18:45 UTC15m
2026-07-10 CCA1265 - Jul 10, 12:15 UTCJul 10, 12:30 UTC15m
2026-07-10 CCA1809 - Jul 10, 01:55 UTCJul 10, 02:10 UTC15m
2026-07-09 CCA1927 - Jul 9, 11:40 UTCJul 9, 11:55 UTC15m
2026-07-09 CCA9714 - Jul 9, 09:25 UTCJul 9, 09:35 UTC10m
2026-07-09 CCA9713 - Jul 9, 03:25 UTCJul 9, 03:35 UTC10m
2026-07-08 CCA1571 - Jul 8, 14:00 UTCJul 8, 14:10 UTC10m
2026-07-07 CCA1704 - Jul 7, 23:55 UTCJul 8, 00:10 UTC15m
2026-07-05 CCA1266 - Jul 5, 18:35 UTCJul 5, 18:55 UTC20m
2026-07-05 CCA1265 - Jul 5, 12:25 UTCJul 5, 12:45 UTC20m
2026-07-04 CCA1651 - Jul 4, 03:00 UTCJul 4, 03:10 UTC10m
2026-07-02 CCA1129 - Jul 2, 13:40 UTCJul 2, 13:50 UTC10m
2026-07-01 CCA1131 - Jul 1, 23:45 UTCJul 2, 00:00 UTC15m
2026-07-01 CCA1361 PEK → HAK Jul 1, 00:45 UTCJul 1, 01:05 UTC20m
2026-06-30 CCA1353 - Jun 30, 07:00 UTCJun 30, 07:20 UTC20m
2026-06-29 CCA1131 - Jun 29, 23:39 UTCJun 30, 00:00 UTC20m

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

Mode-S 7815C1 frequently asked

What is Mode-S code 7815C1?
7815C1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-305F.
Where is Mode-S 7815C1 registered?
Mode-S code 7815C1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7815C1 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7815C1, octal 36012701, decimal 7,869,889.
What flights does 7815C1 operate?
Mode-S 7815C1 has broadcast 20 distinct callsigns, including CCA1266, CCA1265, CCA1377, CCA1369, CCA1131.