Apparatus

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sensors Mode-S transponder

7803C3

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1686 · AIRBUS A-320

Hex
7803C3
Octal
36001703
Decimal
7,865,283
Country
CN
Tail
B-1686
Type
A320
No current signal · last broadcast 12h ago
Flights observed
85
Distinct callsigns
20
Country
CN
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 7803C3.

Country allocation

The ICAO 24-bit address 7803C3 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
CCA8206 - 7 2026-07-16
CCA8240 Air China 6 2026-06-03
CCA8234 - 6 2026-07-15
CCA1203 - 6 2026-07-11
CCA8233 - 5 2026-07-15
CCA8223 - 3 2026-07-01
CCA8208 - 3 2026-07-01
CCA1917 - 3 2026-07-09
CCA8216 Air China 2 2026-07-17
CCA8214 Air China 2 2026-05-20
CCA8211 - 2 2026-07-17
CCA1906 Air China 2 2026-04-21
CCA1881 - 2 2026-07-05
CCA1867 Air China 2 2026-04-22
CCA1458 - 2 2026-07-09
CCA1457 - 2 2026-07-09
CCA120 - 2 2026-07-12
CCA9746 - 1 2026-07-18
CCA9745 - 1 2026-07-18
CCA9693 - 1 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CCA9693 - Jul 18, 15:15 UTCJul 18, 15:25 UTC10m
2026-07-18 CCA9746 - Jul 18, 13:05 UTCJul 18, 13:25 UTC20m
2026-07-18 CCA9745 - Jul 18, 05:00 UTCJul 18, 05:20 UTC20m
2026-07-18 CCA8203 WUH → PEK Jul 18, 02:29 UTCJul 18, 02:45 UTC15m
2026-07-17 CCA8216 PEK → WUH Jul 17, 13:50 UTCJul 17, 14:04 UTC15m
2026-07-17 CCA8211 - Jul 17, 11:50 UTCJul 17, 12:04 UTC15m
2026-07-16 CCA8206 - Jul 16, 03:20 UTCJul 16, 03:40 UTC20m
2026-07-15 CCA8234 - Jul 15, 03:40 UTCJul 15, 03:50 UTC10m
2026-07-15 CCA8233 - Jul 15, 01:20 UTCJul 15, 01:35 UTC15m
2026-07-14 CCA8288 - Jul 14, 12:55 UTCJul 14, 13:10 UTC15m
2026-07-12 CCA120 - Jul 12, 09:40 UTCJul 12, 09:50 UTC10m
2026-07-12 - - Jul 12, 07:35 UTCJul 12, 07:55 UTC20m
2026-07-12 CCA8206 - Jul 12, 03:30 UTCJul 12, 03:55 UTC25m
2026-07-11 CCA1203 - Jul 11, 04:40 UTCJul 11, 05:01 UTC20m
2026-07-10 CCA1135 - Jul 10, 23:05 UTCJul 10, 23:15 UTC10m
2026-07-10 CCA1378 - Jul 10, 16:55 UTCJul 10, 17:10 UTC15m
2026-07-10 CCA1377 - Jul 10, 08:45 UTCJul 10, 14:00 UTC5h 15m
2026-07-09 CCA1917 - Jul 9, 23:20 UTCJul 9, 23:40 UTC20m
2026-07-09 CCA1458 - Jul 9, 12:15 UTCJul 9, 12:40 UTC25m
2026-07-09 CCA1457 - Jul 9, 07:40 UTCJul 9, 07:50 UTC10m
2026-07-08 CCA1851 - Jul 8, 23:00 UTCJul 8, 23:10 UTC10m
2026-07-08 CCA1458 - Jul 8, 13:40 UTCJul 8, 13:55 UTC15m
2026-07-08 CCA1457 - Jul 8, 09:00 UTCJul 8, 09:10 UTC10m
2026-07-07 CCA1917 - Jul 7, 23:30 UTCJul 7, 23:50 UTC20m
2026-07-07 CCA1258 - Jul 7, 09:20 UTCJul 7, 09:35 UTC15m
2026-07-07 CCA1257 - Jul 7, 00:20 UTCJul 7, 00:30 UTC10m
2026-07-06 CCA4164 - Jul 6, 05:15 UTCJul 6, 05:35 UTC20m
2026-07-05 CCA1881 - Jul 5, 16:20 UTCJul 5, 16:35 UTC15m
2026-07-04 CCA1203 - Jul 4, 04:50 UTCJul 5, 01:50 UTC21h 0m
2026-07-04 CCA1203 - Jul 4, 04:40 UTCJul 5, 01:50 UTC21h 10m
2026-07-03 CCA1203 - Jul 3, 04:40 UTCJul 3, 05:05 UTC25m
2026-07-01 CCA8208 - Jul 1, 05:25 UTCJul 1, 05:45 UTC20m
2026-07-01 CCA8223 - Jul 1, 03:05 UTCJul 1, 03:30 UTC25m
2026-06-30 CCA8226 - Jun 30, 12:40 UTCJun 30, 12:55 UTC15m
2026-06-06 CCA8202 PEK → WUH Jun 6, 00:20 UTCJun 6, 00:45 UTC25m
2026-06-03 CCA8240 ZUH → WUH Jun 3, 15:45 UTCJun 3, 15:55 UTC10m
2026-06-03 CCA8234 SZX → WUH Jun 3, 04:05 UTCJun 3, 04:15 UTC10m
2026-06-02 CCA8240 ZUH → WUH Jun 2, 15:35 UTCJun 2, 15:50 UTC15m
2026-06-02 CCA8239 WUH → ZUH Jun 2, 14:05 UTCJun 2, 14:25 UTC20m
2026-06-02 CCA8234 SZX → WUH Jun 2, 04:15 UTCJun 2, 04:30 UTC15m
2026-05-30 CCA8234 SZX → WUH May 30, 04:00 UTCMay 30, 04:10 UTC10m
2026-05-30 CCA8233 WUH → SZX May 30, 01:15 UTCMay 30, 01:40 UTC25m
2026-05-29 CCA8240 ZUH → WUH May 29, 16:50 UTCMay 29, 17:05 UTC15m
2026-05-29 CCA8234 SZX → WUH May 29, 03:50 UTCMay 29, 04:00 UTC10m
2026-05-29 CCA8233 WUH → SZX May 29, 01:20 UTCMay 29, 01:30 UTC10m
2026-05-28 CCA8240 ZUH → WUH May 28, 15:35 UTCMay 28, 15:45 UTC10m
2026-05-28 CCA8234 SZX → WUH May 28, 04:00 UTCMay 28, 04:15 UTC15m
2026-05-28 CCA8233 WUH → SZX May 28, 01:10 UTCMay 28, 01:25 UTC15m
2026-05-26 CCA8206 PEK → WUH May 26, 03:09 UTCMay 26, 03:30 UTC20m
2026-05-20 CCA8214 PEK → WUH May 20, 12:25 UTCMay 20, 12:40 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-1686 page for operator, model, and routing details .

Mode-S 7803C3 frequently asked

What is Mode-S code 7803C3?
7803C3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1686.
Where is Mode-S 7803C3 registered?
Mode-S code 7803C3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7803C3 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 7803C3, octal 36001703, decimal 7,865,283.
What flights does 7803C3 operate?
Mode-S 7803C3 has broadcast 20 distinct callsigns, including CCA8206, CCA8240, CCA8234, CCA1203, CCA8233.