Apparatus

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sensors Mode-S transponder

7805B1

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6597 · AIRBUS A-321

Hex
7805B1
Octal
36002661
Decimal
7,865,777
Country
CN
Tail
B-6597
Type
A321
No current signal · last broadcast 4h ago
Flights observed
133
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7805B1.

Country allocation

The ICAO 24-bit address 7805B1 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
CCA189 - 11 2026-06-28
CCA190 - 8 2026-06-28
CCA181 - 7 2026-06-29
CCA927 - 5 2026-06-24
CCA182 - 5 2026-06-29
CCA161 - 5 2026-07-02
CCA928 - 4 2026-06-24
CCA162 - 4 2026-07-03
CCA1483 - 4 2026-06-25
CCA1288 - 4 2026-07-12
CCA184 Air China 3 2026-07-06
CCA183 - 3 2026-07-06
CCA1287 - 3 2026-07-12
CCA1899 - 2 2026-06-28
CCA1581 - 2 2026-06-29
CCA1541 - 2 2026-07-14
CCA1375 Air China 2 2026-05-07
CCA1333 Air China 2 2026-04-24
CCA1228 - 2 2026-07-12
CCA1227 - 2 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA1915 - Jul 14, 13:35 UTCJul 14, 13:50 UTC15m
2026-07-14 CCA1541 - Jul 14, 05:50 UTCJul 14, 06:00 UTC10m
2026-07-13 CCA1353 - Jul 13, 06:30 UTCJul 13, 06:50 UTC20m
2026-07-13 CCA1575 - Jul 13, 01:30 UTCJul 13, 01:40 UTC10m
2026-07-12 CCA1288 - Jul 12, 16:40 UTCJul 12, 17:01 UTC20m
2026-07-12 CCA1287 - Jul 12, 10:25 UTCJul 12, 10:45 UTC20m
2026-07-12 CCA1228 - Jul 12, 08:05 UTCJul 12, 08:25 UTC20m
2026-07-12 CCA1227 - Jul 12, 04:40 UTCJul 12, 05:01 UTC20m
2026-07-12 CCA1206 - Jul 12, 01:50 UTCJul 12, 02:20 UTC30m
2026-07-11 CCA1224 - Jul 11, 09:15 UTCJul 11, 09:55 UTC40m
2026-07-11 CCA1223 - Jul 11, 04:10 UTCJul 11, 04:30 UTC20m
2026-07-10 CCA1639 - Jul 10, 13:45 UTCJul 10, 13:55 UTC10m
2026-07-10 CCA134 - Jul 10, 07:40 UTCJul 10, 09:35 UTC1h 55m
2026-07-10 CCA133 - Jul 10, 04:20 UTCJul 10, 06:15 UTC1h 55m
2026-07-08 CCA081 - Jul 8, 22:15 UTCJul 8, 22:25 UTC10m
2026-07-06 CCA184 HND → PEK Jul 6, 23:40 UTCJul 7, 01:45 UTC2h 5m
2026-07-06 CCA183 - Jul 6, 10:15 UTCJul 6, 13:20 UTC3h 5m
2026-07-06 CCA1505 - Jul 6, 02:35 UTCJul 6, 02:50 UTC15m
2026-07-05 CCA1288 - Jul 5, 17:20 UTCJul 5, 17:40 UTC20m
2026-07-04 CCA1312 - Jul 4, 08:30 UTCJul 4, 08:50 UTC20m
2026-07-04 CCA1311 - Jul 4, 01:40 UTCJul 4, 02:00 UTC20m
2026-07-03 CCA162 - Jul 3, 06:50 UTCJul 3, 08:20 UTC1h 30m
2026-07-02 CCA161 - Jul 2, 10:00 UTCJul 2, 11:25 UTC1h 25m
2026-07-01 CCA1927 - Jul 1, 11:10 UTCJul 1, 11:30 UTC20m
2026-07-01 CCA1224 - Jul 1, 08:40 UTCJul 1, 09:05 UTC25m
2026-07-01 CCA1223 - Jul 1, 04:15 UTCJul 1, 04:35 UTC20m
2026-06-29 CCA1581 - Jun 29, 11:25 UTCJun 29, 11:39 UTC15m
2026-06-29 CCA182 - Jun 29, 05:15 UTCJun 29, 07:20 UTC2h 5m
2026-06-29 CCA181 - Jun 29, 01:29 UTCJun 29, 03:20 UTC1h 50m
2026-06-29 CCA181 - Jun 29, 00:29 UTCJun 29, 00:39 UTC10m
2026-06-28 CCA190 - Jun 28, 10:50 UTCJun 28, 11:14 UTC25m
2026-06-28 CCA189 - Jun 28, 08:39 UTCJun 28, 09:10 UTC30m
2026-06-28 CCA1899 - Jun 28, 00:25 UTCJun 28, 00:35 UTC10m
2026-06-26 CCA1286 - Jun 26, 10:20 UTCJun 26, 10:35 UTC15m
2026-06-26 CCA1285 - Jun 26, 03:50 UTCJun 26, 04:04 UTC15m
2026-06-25 CCA1483 - Jun 25, 05:35 UTCJun 25, 05:55 UTC20m
2026-06-24 CCA1609 PEK → CGQ Jun 24, 23:29 UTCJun 24, 23:40 UTC10m
2026-06-24 CCA1811 - Jun 24, 10:30 UTCJun 24, 10:39 UTC10m
2026-06-24 CCA928 - Jun 24, 05:15 UTCJun 24, 06:45 UTC1h 30m
2026-06-24 CCA927 - Jun 24, 02:00 UTCJun 24, 03:29 UTC1h 30m
2026-06-24 CCA927 - Jun 24, 00:59 UTCJun 24, 01:09 UTC10m
2026-06-23 CCA190 - Jun 23, 11:04 UTCJun 23, 11:29 UTC25m
2026-06-23 CCA189 - Jun 23, 08:45 UTCJun 23, 09:14 UTC30m
2026-06-23 CCA1899 - Jun 23, 00:24 UTCJun 23, 00:35 UTC10m
2026-06-22 CCA162 - Jun 22, 00:20 UTCJun 22, 01:49 UTC1h 30m
2026-06-21 CCA161 - Jun 21, 10:14 UTCJun 21, 11:40 UTC1h 25m
2026-06-21 CCA1926 ZHA → PEK Jun 21, 07:20 UTCJun 21, 07:29 UTC10m
2026-06-20 CCA1925 - Jun 20, 23:55 UTCJun 21, 00:14 UTC20m
2026-06-20 CCA110 - Jun 20, 10:09 UTCJun 20, 10:25 UTC15m
2026-06-20 CCA109 - Jun 20, 04:44 UTCJun 20, 07:54 UTC3h 10m

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-6597 page for operator, model, and routing details .

Mode-S 7805B1 frequently asked

What is Mode-S code 7805B1?
7805B1 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6597.
Where is Mode-S 7805B1 registered?
Mode-S code 7805B1 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7805B1 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7805B1, octal 36002661, decimal 7,865,777.
What flights does 7805B1 operate?
Mode-S 7805B1 has broadcast 20 distinct callsigns, including CCA189, CCA190, CCA181, CCA927, CCA182.