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 2h ago
Flights observed
166
Distinct callsigns
20
Country
CN
Last broadcast
2h 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
CCA935 - 18 2026-07-05
CCA867 Air China 15 2026-07-08
CCA868 - 14 2026-07-09
CCA840 - 12 2026-07-04
CCA839 - 12 2026-07-03
CCA936 Air China 11 2026-07-05
CCA848 Air China 10 2026-06-13
CCA847 Air China 9 2026-06-12
CCA846 - 7 2026-07-10
CCA968 Air China 6 2026-06-20
CCA912 Air China 5 2026-05-06
CCA911 Air China 5 2026-05-05
CCA845 - 5 2026-07-09
CCA949 Air China 4 2026-05-18
CCA967 - 3 2026-06-27
CCA950 Air China 3 2026-06-28
CCA1314 Air China 3 2026-05-25
CCA878 Air China 2 2026-05-03
CCA825 - 2 2026-07-01
CCA1421 - 2 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA1883 - Jul 14, 13:20 UTCJul 14, 13:35 UTC15m
2026-07-13 CCA1379 - Jul 13, 11:35 UTCJul 13, 11:55 UTC20m
2026-07-13 CCA1321 - Jul 13, 01:35 UTCJul 13, 01:55 UTC20m
2026-07-12 CCA852 - Jul 12, 11:50 UTCJul 12, 21:00 UTC9h 10m
2026-07-11 CCA851 - Jul 11, 22:55 UTCJul 12, 05:50 UTC6h 55m
2026-07-11 CCA1384 - Jul 11, 10:20 UTCJul 11, 10:30 UTC10m
2026-07-11 CCA1384 - Jul 11, 07:55 UTCJul 11, 08:10 UTC15m
2026-07-11 CCA1383 - Jul 11, 04:55 UTCJul 11, 05:15 UTC20m
2026-07-11 CCA1383 - Jul 11, 02:35 UTCJul 11, 02:55 UTC20m
2026-07-10 CCA846 - Jul 10, 21:00 UTCJul 10, 21:15 UTC15m
2026-07-10 CCA846 - Jul 10, 11:25 UTCJul 10, 18:35 UTC7h 10m
2026-07-09 CCA845 - Jul 9, 22:05 UTCJul 10, 05:45 UTC7h 40m
2026-07-09 CCA845 - Jul 9, 19:05 UTCJul 9, 19:15 UTC10m
2026-07-09 CCA868 - Jul 9, 10:00 UTCJul 9, 10:10 UTC10m
2026-07-09 CCA868 - Jul 9, 07:20 UTCJul 9, 07:35 UTC15m
2026-07-09 CCA868 - Jul 9, 04:00 UTCJul 9, 04:15 UTC15m
2026-07-08 CCA868 - Jul 8, 15:40 UTCJul 9, 02:15 UTC10h 35m
2026-07-08 CCA867 SZX → JNB Jul 8, 01:30 UTCJul 8, 13:35 UTC12h 5m
2026-07-08 CCA867 SZX → JNB Jul 8, 00:40 UTCJul 8, 00:50 UTC10m
2026-07-07 CCA867 SZX → JNB Jul 7, 21:45 UTCJul 7, 22:00 UTC15m
2026-07-07 CCA867 SZX → JNB Jul 7, 19:15 UTCJul 7, 19:35 UTC20m
2026-07-07 CCA1367 - Jul 7, 03:05 UTCJul 7, 03:20 UTC15m
2026-07-05 CCA936 FRA → PVG Jul 5, 17:45 UTCJul 6, 02:50 UTC9h 5m
2026-07-05 CCA935 - Jul 5, 04:55 UTCJul 5, 14:20 UTC9h 25m
2026-07-04 CCA935 - Jul 4, 17:20 UTCJul 5, 14:20 UTC21h 0m
2026-07-04 CCA840 - Jul 4, 11:50 UTCJul 5, 11:40 UTC23h 50m
2026-07-04 CCA840 - Jul 4, 10:40 UTCJul 5, 08:40 UTC22h 0m
2026-07-03 CCA839 - Jul 3, 22:45 UTCJul 4, 06:25 UTC7h 40m
2026-07-03 CCA839 - Jul 3, 07:50 UTCJul 4, 06:25 UTC22h 35m
2026-07-03 CCA839 - Jul 3, 06:45 UTCJul 4, 05:45 UTC23h 0m
2026-07-02 CCA840 BCN → NRT Jul 2, 10:50 UTCJul 3, 05:00 UTC18h 10m
2026-07-01 CCA839 - Jul 1, 10:05 UTCJul 2, 05:45 UTC19h 40m
2026-07-01 CCA825 - Jul 1, 05:10 UTCJul 1, 08:20 UTC3h 10m
2026-06-30 CCA1894 - Jun 30, 03:30 UTCJun 30, 03:40 UTC10m
2026-06-30 CCA1893 - Jun 30, 00:45 UTCJun 30, 01:50 UTC1h 5m
2026-06-29 CCA1421 - Jun 29, 00:49 UTCJun 29, 01:10 UTC20m
2026-06-28 CCA950 MXP → PEK Jun 28, 21:14 UTCJun 28, 21:24 UTC10m
2026-06-28 CCA950 MXP → PEK Jun 28, 12:05 UTCJun 28, 18:40 UTC6h 35m
2026-06-27 CCA967 - Jun 27, 23:55 UTCJun 28, 06:24 UTC6h 30m
2026-06-26 CCA936 FRA → PVG Jun 26, 17:50 UTCJun 27, 02:45 UTC8h 55m
2026-06-26 CCA935 - Jun 26, 05:10 UTCJun 26, 14:39 UTC9h 30m
2026-06-25 CCA935 - Jun 25, 17:49 UTCJun 26, 14:39 UTC20h 50m
2026-06-25 CCA935 - Jun 25, 17:20 UTCJun 26, 14:39 UTC21h 20m
2026-06-25 CCA935 - Jun 25, 13:50 UTCJun 26, 13:45 UTC23h 55m
2026-06-25 CCA840 - Jun 25, 11:50 UTCJun 26, 11:45 UTC23h 55m
2026-06-25 CCA840 - Jun 25, 10:35 UTCJun 26, 09:00 UTC22h 25m
2026-06-24 CCA839 - Jun 24, 21:40 UTCJun 25, 05:09 UTC7h 30m
2026-06-24 CCA839 - Jun 24, 02:34 UTCJun 25, 01:09 UTC22h 35m
2026-06-23 CCA839 - Jun 23, 23:50 UTCJun 24, 22:25 UTC22h 35m
2026-06-23 CCA936 FRA → PVG Jun 23, 23:10 UTCJun 24, 21:44 UTC22h 35m

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 2h 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 CCA935, CCA867, CCA868, CCA840, CCA839.