Apparatus

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sensors Mode-S transponder

781344

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1081 · AIRBUS A-350-900

Hex
781344
Octal
36011504
Decimal
7,869,252
Country
CN
Tail
B-1081
Type
A359
No current signal · last broadcast 6h ago
Flights observed
180
Distinct callsigns
20
Country
CN
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 781344.

Country allocation

The ICAO 24-bit address 781344 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
CCA867 Air China 11 2026-06-25
CCA846 - 10 2026-06-18
CCA845 Air China 9 2026-06-17
CCA868 - 7 2026-06-27
CCA852 Air China 7 2026-05-17
CCA424 - 7 2026-06-30
CCA912 Air China 6 2026-06-28
CCA839 - 6 2026-07-06
CCA968 - 5 2026-07-15
CCA950 Air China 5 2026-07-02
CCA935 - 5 2026-07-16
CCA876 Air China 5 2026-05-06
CCA875 Air China 5 2026-05-05
CCA851 Air China 5 2026-05-16
CCA828 Air China 5 2026-06-12
CCA827 Air China 5 2026-06-11
CCA445 - 5 2026-07-01
CCA967 - 4 2026-07-14
CCA949 Air China 4 2026-06-28
CCA911 - 4 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CCA826 - Jul 17, 12:50 UTCJul 17, 16:04 UTC3h 15m
2026-07-17 CCA825 - Jul 17, 10:50 UTCJul 17, 11:10 UTC20m
2026-07-16 CCA936 - Jul 16, 18:00 UTCJul 17, 08:10 UTC14h 10m
2026-07-16 CCA935 - Jul 16, 05:25 UTCJul 16, 14:45 UTC9h 20m
2026-07-15 CCA935 - Jul 15, 17:05 UTCJul 16, 14:45 UTC21h 40m
2026-07-15 CCA935 - Jul 15, 16:35 UTCJul 16, 14:45 UTC22h 10m
2026-07-15 CCA968 - Jul 15, 13:05 UTCJul 16, 12:09 UTC23h 5m
2026-07-15 CCA968 - Jul 15, 11:05 UTCJul 16, 09:15 UTC22h 10m
2026-07-15 CCA968 - Jul 15, 10:40 UTCJul 16, 09:00 UTC22h 20m
2026-07-14 CCA967 - Jul 14, 11:05 UTCJul 15, 06:05 UTC18h 59m
2026-07-14 CCA967 - Jul 14, 10:55 UTCJul 15, 06:05 UTC19h 9m
2026-07-13 CCA848 - Jul 13, 13:05 UTCJul 14, 08:20 UTC19h 15m
2026-07-13 CCA848 - Jul 13, 11:05 UTCJul 14, 08:20 UTC21h 15m
2026-07-13 CCA848 - Jul 13, 10:45 UTCJul 14, 08:20 UTC21h 35m
2026-07-12 CCA847 - Jul 12, 19:30 UTCJul 13, 05:35 UTC10h 5m
2026-07-10 CCA936 - Jul 10, 17:55 UTCJul 11, 02:45 UTC8h 50m
2026-07-10 CCA935 - Jul 10, 06:05 UTCJul 10, 15:40 UTC9h 35m
2026-07-09 CCA935 - Jul 9, 13:05 UTCJul 10, 13:00 UTC23h 55m
2026-07-09 CCA968 - Jul 9, 11:05 UTCJul 10, 09:50 UTC22h 45m
2026-07-09 CCA968 MXP → PVG Jul 9, 10:50 UTCJul 10, 06:20 UTC19h 30m
2026-07-08 CCA967 - Jul 8, 23:00 UTCJul 9, 05:50 UTC6h 50m
2026-07-08 CCA967 - Jul 8, 07:05 UTCJul 9, 05:50 UTC22h 45m
2026-07-08 CCA930 - Jul 8, 06:40 UTCJul 9, 05:00 UTC22h 20m
2026-07-07 CCA840 BCN → NRT Jul 7, 10:30 UTCJul 8, 04:50 UTC18h 20m
2026-07-06 CCA839 - Jul 6, 21:30 UTCJul 7, 05:20 UTC7h 50m
2026-07-06 CCA839 - Jul 6, 07:05 UTCJul 7, 05:20 UTC22h 15m
2026-07-06 CCA839 - Jul 6, 06:30 UTCJul 7, 05:00 UTC22h 30m
2026-07-05 CCA840 BCN → NRT Jul 5, 11:50 UTCJul 6, 04:45 UTC16h 55m
2026-07-04 CCA839 - Jul 4, 22:15 UTCJul 5, 06:45 UTC8h 30m
2026-07-04 CCA839 - Jul 4, 07:05 UTCJul 5, 06:45 UTC23h 40m
2026-07-04 CCA839 - Jul 4, 06:30 UTCJul 5, 05:00 UTC22h 30m
2026-07-04 CCA929 - Jul 4, 03:05 UTCJul 4, 04:40 UTC1h 35m
2026-07-03 CCA1421 - Jul 3, 00:50 UTCJul 3, 01:15 UTC25m
2026-07-02 CCA950 MXP → PEK Jul 2, 12:00 UTCJul 2, 20:45 UTC8h 45m
2026-07-01 CCA445 - Jul 1, 21:25 UTCJul 2, 04:20 UTC6h 55m
2026-07-01 CCA445 - Jul 1, 03:05 UTCJul 2, 03:00 UTC23h 55m
2026-07-01 CCA445 - Jul 1, 02:50 UTCJul 2, 01:00 UTC22h 10m
2026-06-30 CCA424 - Jun 30, 23:05 UTCJul 1, 22:10 UTC23h 5m
2026-06-30 CCA424 - Jun 30, 21:15 UTCJul 1, 03:40 UTC6h 25m
2026-06-30 CCA423 TFU → LHR Jun 30, 11:45 UTCJun 30, 18:45 UTC7h 0m
2026-06-29 CCA423 TFU → LHR Jun 29, 17:30 UTCJun 30, 12:25 UTC18h 55m
2026-06-29 CCA446 - Jun 29, 13:04 UTCJun 30, 12:25 UTC23h 20m
2026-06-29 CCA446 - Jun 29, 11:39 UTCJun 29, 18:05 UTC6h 25m
2026-06-28 CCA949 PEK → MXP Jun 28, 21:04 UTCJun 29, 06:59 UTC9h 55m
2026-06-28 CCA912 ARN → PEK Jun 28, 01:25 UTCJun 28, 01:40 UTC15m
2026-06-27 CCA912 ARN → PEK Jun 27, 17:59 UTCJun 27, 22:49 UTC4h 50m
2026-06-27 CCA911 - Jun 27, 07:39 UTCJun 27, 15:55 UTC8h 15m
2026-06-27 CCA868 - Jun 27, 01:49 UTCJun 27, 01:59 UTC10m
2026-06-26 CCA868 - Jun 26, 22:49 UTCJun 26, 23:04 UTC15m
2026-06-26 CCA868 - Jun 26, 10:15 UTCJun 26, 22:14 UTC12h 0m

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-1081 page for operator, model, and routing details .

Mode-S 781344 frequently asked

What is Mode-S code 781344?
781344 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1081.
Where is Mode-S 781344 registered?
Mode-S code 781344 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781344 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781344, octal 36011504, decimal 7,869,252.
What flights does 781344 operate?
Mode-S 781344 has broadcast 20 distinct callsigns, including CCA867, CCA846, CCA845, CCA868, CCA852.