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 1h ago
Flights observed
83
Distinct callsigns
20
Country
CN
Last broadcast
1h 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 7 2026-05-21
CCA852 Air China 7 2026-05-17
CCA846 Air China 7 2026-05-13
CCA845 Air China 7 2026-05-13
CCA876 Air China 5 2026-05-06
CCA875 Air China 5 2026-05-05
CCA851 Air China 5 2026-05-16
CCA868 Air China 4 2026-05-22
CCA842 Air China 3 2026-05-24
CCA841 Air China 3 2026-05-23
CCA912 Air China 2 2026-05-04
CCA878 Air China 2 2026-05-26
CCA877 Air China 2 2026-05-25
CCA458 Air China 2 2026-06-01
CCA457 Air China 2 2026-05-31
CCA423 Air China 2 2026-06-02
CCA1367 Air China 2 2026-04-26
CCA949 Air China 1 2026-05-27
CCA911 Air China 1 2026-05-03
CCA862 Air China 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CCA423 TFU → LHR Jun 2, 11:50 UTCJun 2, 18:40 UTC6h 50m
2026-06-01 CCA458 CDG → TFU Jun 1, 13:05 UTCJun 2, 12:40 UTC23h 35m
2026-06-01 CCA458 CDG → TFU Jun 1, 11:20 UTCJun 1, 13:55 UTC2h 35m
2026-05-31 CCA457 TFU → CDG May 31, 21:25 UTCJun 1, 04:15 UTC6h 50m
2026-05-30 CCA457 TFU → CDG May 30, 23:05 UTCMay 31, 22:25 UTC23h 20m
2026-05-30 CCA424 LHR → TFU May 30, 21:15 UTCMay 30, 23:55 UTC2h 40m
2026-05-30 CCA423 TFU → LHR May 30, 11:50 UTCMay 30, 18:50 UTC7h 0m
2026-05-28 CCA446 MXP → TFU May 28, 11:10 UTCMay 28, 18:00 UTC6h 50m
2026-05-27 CCA949 PEK → MXP May 27, 21:50 UTCMay 28, 07:40 UTC9h 50m
2026-05-27 CCA1407 PEK → CTU May 27, 09:10 UTCMay 27, 09:35 UTC25m
2026-05-27 CCA1360 CAN → PEK May 27, 06:29 UTCMay 27, 06:40 UTC10m
2026-05-26 CCA878 CPH → PEK May 26, 00:54 UTCMay 26, 01:14 UTC20m
2026-05-25 CCA878 CPH → PEK May 25, 17:15 UTCMay 25, 22:25 UTC5h 9m
2026-05-25 CCA877 PEK → CPH May 25, 14:20 UTCMay 25, 15:10 UTC50m
2026-05-24 CCA877 PEK → CPH May 24, 17:05 UTCMay 25, 15:10 UTC22h 5m
2026-05-24 CCA842 VIE → PEK May 24, 15:20 UTCMay 25, 15:00 UTC23h 40m
2026-05-24 CCA842 VIE → PEK May 24, 11:40 UTCMay 24, 17:25 UTC5h 45m
2026-05-23 CCA841 PEK → VIE May 23, 22:30 UTCMay 24, 02:15 UTC3h 45m
2026-05-22 - - May 22, 23:00 UTCMay 22, 23:15 UTC15m
2026-05-22 CCA868 JNB → SZX May 22, 10:45 UTCMay 22, 21:35 UTC10h 50m
2026-05-21 CCA867 SZX → JNB May 21, 21:30 UTCMay 22, 08:15 UTC10h 45m
2026-05-21 CCA867 SZX → JNB May 21, 19:50 UTCMay 21, 20:00 UTC10m
2026-05-21 CCA867 SZX → JNB May 21, 17:00 UTCMay 21, 17:20 UTC20m
2026-05-21 CCA867 SZX → JNB May 21, 13:50 UTCMay 21, 14:05 UTC15m
2026-05-21 CCA1523 PEK → SHA May 21, 03:10 UTCMay 21, 03:20 UTC10m
2026-05-19 CCA1359 PEK → CAN May 19, 23:15 UTCMay 19, 23:40 UTC25m
2026-05-17 CCA852 NCE → PEK May 17, 20:45 UTCMay 17, 21:01 UTC15m
2026-05-17 CCA852 NCE → PEK May 17, 11:55 UTCMay 17, 18:10 UTC6h 15m
2026-05-16 CCA851 PEK → NCE May 16, 22:10 UTCMay 17, 05:20 UTC7h 10m
2026-05-15 CCA852 NCE → PEK May 15, 11:50 UTCMay 15, 18:15 UTC6h 24m
2026-05-15 CCA851 PEK → NCE May 15, 01:40 UTCMay 15, 05:30 UTC3h 50m
2026-05-13 CCA846 BCN → PEK May 13, 11:30 UTCMay 13, 18:45 UTC7h 15m
2026-05-13 CCA845 PEK → BCN May 13, 05:10 UTCMay 13, 06:00 UTC50m
2026-05-11 CCA852 NCE → PEK May 11, 11:45 UTCMay 11, 17:50 UTC6h 5m
2026-05-10 CCA851 PEK → NCE May 10, 21:00 UTCMay 11, 05:30 UTC8h 30m
2026-05-09 CCA868 JNB → SZX May 9, 00:20 UTCMay 9, 00:35 UTC15m
2026-05-08 CCA868 JNB → SZX May 8, 21:05 UTCMay 8, 21:20 UTC15m
2026-05-08 CCA868 JNB → SZX May 8, 08:40 UTCMay 8, 19:40 UTC11h 0m
2026-05-07 CCA867 SZX → JNB May 7, 18:00 UTCMay 8, 04:44 UTC10h 44m
2026-05-07 CCA867 SZX → JNB May 7, 16:30 UTCMay 7, 16:45 UTC15m
2026-05-07 CCA867 SZX → JNB May 7, 10:55 UTCMay 7, 11:15 UTC20m
2026-05-06 CCA1507 PEK → SHA May 6, 23:50 UTCMay 7, 00:00 UTC10m
2026-05-06 CCA876 CDG → PEK May 6, 19:30 UTCMay 6, 19:45 UTC15m
2026-05-06 CCA876 CDG → PEK May 6, 11:00 UTCMay 6, 17:05 UTC6h 5m
2026-05-05 CCA875 PEK → CDG May 5, 18:35 UTCMay 6, 05:05 UTC10h 30m
2026-05-04 CCA912 ARN → PEK May 4, 00:25 UTCMay 4, 00:40 UTC15m
2026-05-03 CCA912 ARN → PEK May 3, 17:24 UTCMay 3, 22:00 UTC4h 35m
2026-05-03 CCA911 PEK → ARN May 3, 06:35 UTCMay 3, 15:25 UTC8h 50m
2026-05-02 CCA846 BCN → PEK May 2, 20:20 UTCMay 2, 20:40 UTC20m
2026-05-02 CCA846 BCN → PEK May 2, 10:45 UTCMay 2, 18:00 UTC7h 15m

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 1h 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, CCA852, CCA846, CCA845, CCA876.