Apparatus

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sensors Mode-S transponder

781F2F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32DN · AIRBUS A-350-900

Hex
781F2F
Octal
36017457
Decimal
7,872,303
Country
CN
Tail
B-32DN
Type
A359
No current signal · last broadcast 3d ago
Flights observed
92
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 781F2F.

Country allocation

The ICAO 24-bit address 781F2F 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 2026-05-03
CCA868 Air China 10 2026-05-05
CCA848 Air China 8 2026-05-26
CCA847 Air China 8 2026-05-25
CCA968 Air China 5 2026-05-19
CCA936 Air China 5 2026-05-20
CCA935 Air China 5 2026-05-20
CCA912 Air China 5 2026-05-06
CCA911 Air China 5 2026-05-05
CCA846 Air China 5 2026-05-17
CCA949 Air China 4 2026-05-18
CCA845 Air China 3 2026-05-16
CCA1314 Air China 3 2026-05-25
CCA878 Air China 2 2026-05-03
CCA840 Air China 2 2026-04-27
CCA839 Air China 2 2026-04-26
CCA967 Air China 1 2026-05-23
CCA950 Air China 1 2026-05-24
CCA877 Air China 1 2026-05-02
CCA842 Air China 1 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 CCA848 LGW → PVG May 26, 10:34 UTCMay 26, 19:40 UTC9h 5m
2026-05-25 CCA847 PVG → LGW May 25, 14:15 UTCMay 26, 05:30 UTC15h 14m
2026-05-25 CCA1314 SZX → PEK May 25, 08:15 UTCMay 25, 08:25 UTC10m
2026-05-24 CCA950 MXP → PEK May 24, 11:50 UTCMay 24, 18:30 UTC6h 40m
2026-05-23 CCA967 PVG → MXP May 23, 10:10 UTCMay 24, 04:55 UTC18h 46m
2026-05-22 CCA848 LGW → PVG May 22, 11:50 UTCMay 23, 07:30 UTC19h 40m
2026-05-22 CCA848 LGW → PVG May 22, 10:45 UTCMay 23, 07:30 UTC20h 44m
2026-05-21 CCA847 PVG → LGW May 21, 19:10 UTCMay 22, 05:15 UTC10h 5m
2026-05-21 CCA847 PVG → LGW May 21, 02:15 UTCMay 22, 01:45 UTC23h 30m
2026-05-20 CCA936 FRA → PVG May 20, 22:45 UTCMay 21, 19:30 UTC20h 45m
2026-05-20 CCA936 FRA → PVG May 20, 19:50 UTCMay 21, 19:30 UTC23h 40m
2026-05-20 CCA936 FRA → PVG May 20, 17:40 UTCMay 21, 02:25 UTC8h 45m
2026-05-20 CCA935 PVG → FRA May 20, 04:55 UTCMay 20, 14:40 UTC9h 45m
2026-05-19 CCA935 PVG → FRA May 19, 16:20 UTCMay 20, 14:40 UTC22h 21m
2026-05-19 CCA968 MXP → PVG May 19, 11:50 UTCMay 20, 11:15 UTC23h 26m
2026-05-19 CCA968 MXP → PVG May 19, 10:35 UTCMay 20, 08:55 UTC22h 21m
2026-05-18 CCA949 PEK → MXP May 18, 20:55 UTCMay 19, 04:05 UTC7h 10m
2026-05-18 CCA949 PEK → MXP May 18, 17:50 UTCMay 18, 18:00 UTC10m
2026-05-17 CCA846 BCN → PEK May 17, 20:35 UTCMay 17, 20:50 UTC15m
2026-05-17 CCA846 BCN → PEK May 17, 10:55 UTCMay 17, 18:01 UTC7h 5m
2026-05-16 CCA845 PEK → BCN May 16, 22:10 UTCMay 17, 06:00 UTC7h 50m
2026-05-15 CCA968 MXP → PVG May 15, 10:40 UTCMay 15, 17:00 UTC6h 19m
2026-05-14 CCA949 PEK → MXP May 14, 20:55 UTCMay 15, 03:55 UTC7h 0m
2026-05-14 CCA1332 SZX → PEK May 14, 05:25 UTCMay 14, 05:40 UTC15m
2026-05-13 CCA842 VIE → PEK May 13, 11:40 UTCMay 13, 17:15 UTC5h 35m
2026-05-12 CCA841 PEK → VIE May 12, 21:01 UTCMay 13, 04:15 UTC7h 15m
2026-05-11 CCA936 FRA → PVG May 11, 17:35 UTCMay 11, 19:35 UTC2h 0m
2026-05-11 CCA935 PVG → FRA May 11, 07:05 UTCMay 11, 15:10 UTC8h 5m
2026-05-10 CCA935 PVG → FRA May 10, 16:04 UTCMay 11, 15:10 UTC23h 5m
2026-05-10 CCA935 PVG → FRA May 10, 14:09 UTCMay 11, 12:15 UTC22h 5m
2026-05-10 CCA848 LGW → PVG May 10, 11:50 UTCMay 11, 11:45 UTC23h 55m
2026-05-10 CCA848 LGW → PVG May 10, 10:40 UTCMay 11, 09:15 UTC22h 35m
2026-05-09 CCA847 PVG → LGW May 9, 19:35 UTCMay 10, 05:50 UTC10h 15m
2026-05-08 CCA848 LGW → PVG May 8, 10:49 UTCMay 8, 19:45 UTC8h 55m
2026-05-07 CCA847 PVG → LGW May 7, 19:30 UTCMay 8, 05:59 UTC10h 30m
2026-05-07 CCA847 PVG → LGW May 7, 00:45 UTCMay 7, 23:29 UTC22h 45m
2026-05-06 CCA1523 PEK → SHA May 6, 03:10 UTCMay 6, 03:25 UTC15m
2026-05-06 CCA912 ARN → PEK May 6, 00:15 UTCMay 6, 00:35 UTC20m
2026-05-05 CCA912 ARN → PEK May 5, 17:20 UTCMay 5, 21:50 UTC4h 30m
2026-05-05 CCA911 PEK → ARN May 5, 06:30 UTCMay 5, 15:05 UTC8h 35m
2026-05-05 CCA868 JNB → SZX May 5, 00:25 UTCMay 5, 00:40 UTC15m
2026-05-04 CCA868 JNB → SZX May 4, 21:25 UTCMay 4, 21:40 UTC15m
2026-05-04 CCA868 JNB → SZX May 4, 09:15 UTCMay 4, 19:50 UTC10h 36m
2026-05-03 CCA867 SZX → JNB May 3, 18:34 UTCMay 4, 05:30 UTC10h 55m
2026-05-03 CCA867 SZX → JNB May 3, 16:50 UTCMay 3, 17:05 UTC15m
2026-05-03 CCA867 SZX → JNB May 3, 11:05 UTCMay 3, 11:20 UTC15m
2026-05-03 CCA878 CPH → PEK May 3, 00:50 UTCMay 3, 01:10 UTC20m
2026-05-02 CCA878 CPH → PEK May 2, 17:15 UTCMay 2, 22:25 UTC5h 10m
2026-05-02 CCA877 PEK → CPH May 2, 05:40 UTCMay 2, 14:35 UTC8h 55m
2026-05-02 CCA868 JNB → SZX May 2, 00:15 UTCMay 2, 00:30 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-32DN page for operator, model, and routing details .

Mode-S 781F2F frequently asked

What is Mode-S code 781F2F?
781F2F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DN.
Where is Mode-S 781F2F registered?
Mode-S code 781F2F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F2F broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F2F, octal 36017457, decimal 7,872,303.
What flights does 781F2F operate?
Mode-S 781F2F has broadcast 20 distinct callsigns, including CCA867, CCA868, CCA848, CCA847, CCA968.