Apparatus

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sensors Mode-S transponder

7803F4

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6326 · AIRBUS A-321

Hex
7803F4
Octal
36001764
Decimal
7,865,332
Country
CN
Tail
B-6326
Type
A321
No current signal · last broadcast 3h ago
Flights observed
92
Distinct callsigns
20
Country
CN
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 7803F4.

Country allocation

The ICAO 24-bit address 7803F4 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
CCA168 Air China 5 2026-06-01
CCA167 Air China 5 2026-05-14
CCA135 Air China 5 2026-05-25
CCA928 Air China 4 2026-05-21
CCA927 Air China 4 2026-05-21
CCA183 Air China 4 2026-05-31
CCA161 Air China 4 2026-05-26
CCA136 Air China 4 2026-05-25
CCA422 Air China 3 2026-05-30
CCA421 Air China 3 2026-05-30
CCA123 Air China 3 2026-05-30
CCA110 Air China 3 2026-04-24
CCA109 Air China 3 2026-04-24
CCA1905 Air China 2 2026-04-23
CCA184 Air China 2 2026-05-31
CCA1726 Air China 2 2026-05-18
CCA162 Air China 2 2026-05-27
CCA125 Air China 2 2026-04-19
CCA124 Air China 2 2026-05-30
CCA116 Air China 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 CCA1227 - Jun 3, 04:05 UTCJun 3, 04:30 UTC25m
2026-06-01 CCA168 HND → PEK Jun 1, 10:30 UTCJun 1, 12:40 UTC2h 10m
2026-05-31 CCA184 HND → PEK May 31, 23:55 UTCJun 1, 08:05 UTC8h 10m
2026-05-31 CCA183 PEK → HND May 31, 10:25 UTCMay 31, 12:15 UTC1h 50m
2026-05-30 CCA183 PEK → HND May 30, 13:05 UTCMay 31, 12:15 UTC23h 10m
2026-05-30 CCA422 HND → PEK May 30, 12:10 UTCMay 31, 10:50 UTC22h 40m
2026-05-30 CCA421 PEK → HND May 30, 08:40 UTCMay 30, 10:30 UTC1h 50m
2026-05-30 CCA124 ICN → PEK May 30, 04:20 UTCMay 30, 04:40 UTC20m
2026-05-30 CCA123 PEK → ICN May 30, 01:45 UTCMay 30, 02:10 UTC25m
2026-05-29 CCA116 HKG → PEK May 29, 12:35 UTCMay 29, 13:00 UTC25m
2026-05-29 CCA115 PEK → HKG May 29, 07:55 UTCMay 29, 10:50 UTC2h 55m
2026-05-29 CCA1885 PEK → WEH May 29, 01:45 UTCMay 29, 01:55 UTC10m
2026-05-28 CCA1505 PEK → FOC May 28, 01:25 UTCMay 28, 01:40 UTC15m
2026-05-27 CCA116 HKG → PEK May 27, 12:30 UTCMay 27, 12:50 UTC20m
2026-05-27 CCA115 PEK → HKG May 27, 07:55 UTCMay 27, 10:50 UTC2h 55m
2026-05-27 CCA162 KIX → PEK May 27, 00:34 UTCMay 27, 01:59 UTC1h 25m
2026-05-26 CCA161 PEK → KIX May 26, 08:54 UTCMay 26, 11:09 UTC2h 15m
2026-05-25 CCA1931 PEK → NNG May 25, 11:40 UTCMay 25, 12:00 UTC20m
2026-05-25 CCA136 ICN → PEK May 25, 06:45 UTCMay 25, 07:05 UTC20m
2026-05-25 CCA135 PEK → HKG May 25, 05:00 UTCMay 25, 05:25 UTC25m
2026-05-24 CCA136 ICN → PEK May 24, 06:45 UTCMay 24, 07:05 UTC20m
2026-05-24 CCA135 PEK → HKG May 24, 04:50 UTCMay 24, 05:15 UTC25m
2026-05-22 CCA1712 PEK → HGH May 22, 03:40 UTCMay 22, 03:50 UTC10m
2026-05-21 CCA928 KIX → PEK May 21, 05:20 UTCMay 21, 06:55 UTC1h 35m
2026-05-21 CCA927 PEK → KIX May 21, 01:45 UTCMay 21, 03:15 UTC1h 30m
2026-05-20 CCA1936 NNG → PEK May 20, 10:35 UTCMay 20, 10:45 UTC10m
2026-05-20 CCA1935 PEK → NNG May 20, 03:30 UTCMay 20, 03:50 UTC20m
2026-05-19 CCA1843 PEK → HFE May 19, 05:40 UTCMay 19, 05:50 UTC10m
2026-05-18 CCA1726 CAN → HGH May 18, 10:45 UTCMay 18, 11:00 UTC15m
2026-05-18 CCA136 ICN → PEK May 18, 06:55 UTCMay 18, 07:15 UTC20m
2026-05-18 CCA135 PEK → HKG May 18, 04:40 UTCMay 18, 05:05 UTC25m
2026-05-18 CCA135 PEK → HKG May 18, 03:40 UTCMay 18, 03:50 UTC10m
2026-05-17 CCA1726 CAN → HGH May 17, 10:50 UTCMay 17, 11:05 UTC15m
2026-05-17 CCA124 ICN → PEK May 17, 04:15 UTCMay 17, 04:35 UTC20m
2026-05-17 CCA123 PEK → ICN May 17, 01:55 UTCMay 17, 02:20 UTC25m
2026-05-15 CCA168 HND → PEK May 15, 10:40 UTCMay 15, 12:25 UTC1h 45m
2026-05-14 CCA167 PEK → HND May 14, 23:40 UTCMay 15, 08:05 UTC8h 25m
2026-05-14 CCA183 PEK → HND May 14, 04:35 UTCMay 14, 12:45 UTC8h 10m
2026-05-14 CCA123 PEK → ICN May 14, 02:10 UTCMay 14, 02:25 UTC15m
2026-05-10 CCA168 HND → PEK May 10, 10:30 UTCMay 10, 12:25 UTC1h 55m
2026-05-10 CCA167 PEK → HND May 10, 00:09 UTCMay 10, 08:05 UTC7h 55m
2026-05-09 CCA161 PEK → KIX May 9, 09:40 UTCMay 9, 10:55 UTC1h 15m
2026-05-09 CCA161 PEK → KIX May 9, 08:40 UTCMay 9, 08:50 UTC10m
2026-05-08 CCA182 HND → PEK May 8, 05:39 UTCMay 8, 07:59 UTC2h 20m
2026-05-08 CCA181 PEK → HND May 8, 01:19 UTCMay 8, 03:09 UTC1h 50m
2026-05-07 CCA1361 PEK → HAK May 7, 00:30 UTCMay 7, 00:50 UTC20m
2026-05-06 CCA1724 PEK → HGH May 6, 10:01 UTCMay 6, 10:15 UTC15m
2026-05-06 CCA928 KIX → PEK May 6, 05:15 UTCMay 6, 06:30 UTC1h 15m
2026-05-06 CCA927 PEK → KIX May 6, 00:55 UTCMay 6, 02:55 UTC2h 0m
2026-05-05 CCA168 HND → PEK May 5, 10:30 UTCMay 5, 12:25 UTC1h 55m

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-6326 page for operator, model, and routing details .

Mode-S 7803F4 frequently asked

What is Mode-S code 7803F4?
7803F4 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6326.
Where is Mode-S 7803F4 registered?
Mode-S code 7803F4 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7803F4 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7803F4, octal 36001764, decimal 7,865,332.
What flights does 7803F4 operate?
Mode-S 7803F4 has broadcast 20 distinct callsigns, including CCA168, CCA167, CCA135, CCA928, CCA927.