Apparatus

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sensors Mode-S transponder

781F2D

ICAO 24-bit transponder address · allocated to China

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

Hex
781F2D
Octal
36017455
Decimal
7,872,301
Country
CN
Tail
B-32DL
Type
A359
No current signal · last broadcast 44m ago
Flights observed
169
Distinct callsigns
20
Country
CN
Last broadcast
44m ago

Last known position

Most recent position reported by Mode-S 781F2D.

Country allocation

The ICAO 24-bit address 781F2D 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 - 16 2026-07-07
CCA840 Air China 10 2026-04-20
CCA839 Air China 10 2026-04-19
CCA848 - 9 2026-07-07
CCA968 Air China 8 2026-07-03
CCA967 Air China 8 2026-05-03
CCA936 - 8 2026-07-08
CCA847 Air China 6 2026-07-06
CCA868 Air China 5 2026-06-02
CCA867 Air China 5 2026-05-31
CCA1393 Air China 5 2026-05-21
CCA949 - 4 2026-07-10
CCA912 Air China 4 2026-07-06
CCA911 - 4 2026-07-14
CCA846 Air China 4 2026-06-04
CCA1314 Air China 4 2026-06-03
CCA1313 Air China 4 2026-06-03
CCA862 Air China 3 2026-06-08
CCA861 Air China 3 2026-06-07
CCA845 Air China 3 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CCA911 - Jul 14, 10:00 UTCJul 14, 14:55 UTC4h 55m
2026-07-13 CCA1329 - Jul 13, 13:25 UTCJul 13, 13:45 UTC20m
2026-07-12 CCA630 - Jul 12, 20:05 UTCJul 13, 02:25 UTC6h 20m
2026-07-12 CCA629 - Jul 12, 09:35 UTCJul 12, 16:50 UTC7h 15m
2026-07-11 CCA629 - Jul 11, 18:25 UTCJul 12, 16:50 UTC22h 25m
2026-07-11 CCA446 - Jul 11, 13:20 UTCJul 12, 13:15 UTC23h 55m
2026-07-11 CCA446 - Jul 11, 12:20 UTCJul 12, 10:25 UTC22h 5m
2026-07-10 CCA949 - Jul 10, 18:00 UTCJul 11, 04:05 UTC10h 5m
2026-07-10 CCA1301 - Jul 10, 07:40 UTCJul 10, 08:00 UTC20m
2026-07-10 CCA1308 - Jul 10, 02:55 UTCJul 10, 03:05 UTC10m
2026-07-09 CCA1307 - Jul 9, 16:05 UTCJul 9, 16:25 UTC20m
2026-07-09 CCA1307 - Jul 9, 13:50 UTCJul 9, 14:10 UTC20m
2026-07-08 CCA936 - Jul 8, 17:40 UTCJul 9, 02:35 UTC8h 55m
2026-07-07 CCA935 - Jul 7, 19:25 UTCJul 8, 14:20 UTC18h 55m
2026-07-07 CCA935 - Jul 7, 16:10 UTCJul 8, 14:20 UTC22h 10m
2026-07-07 CCA935 - Jul 7, 14:05 UTCJul 8, 13:15 UTC23h 10m
2026-07-07 CCA848 - Jul 7, 11:20 UTCJul 8, 11:15 UTC23h 55m
2026-07-07 CCA848 - Jul 7, 10:30 UTCJul 8, 08:40 UTC22h 10m
2026-07-06 CCA847 PVG → LGW Jul 6, 19:55 UTCJul 7, 05:45 UTC9h 50m
2026-07-06 CCA1883 - Jul 6, 14:20 UTCJul 6, 14:30 UTC10m
2026-07-06 CCA1557 - Jul 6, 03:50 UTCJul 6, 04:00 UTC10m
2026-07-06 CCA912 ARN → PEK Jul 6, 00:40 UTCJul 6, 01:00 UTC20m
2026-07-05 CCA912 ARN → PEK Jul 5, 17:25 UTCJul 5, 22:20 UTC4h 55m
2026-07-05 CCA911 - Jul 5, 09:40 UTCJul 5, 14:55 UTC5h 15m
2026-07-05 CCA911 - Jul 5, 06:35 UTCJul 5, 06:45 UTC10m
2026-07-05 CCA570 ARN → PEK Jul 5, 03:45 UTCJul 5, 04:05 UTC20m
2026-07-04 CCA570 ARN → PEK Jul 4, 20:35 UTCJul 5, 01:20 UTC4h 45m
2026-07-04 CCA569 PEK → ARN Jul 4, 17:30 UTCJul 4, 17:55 UTC25m
2026-07-04 CCA569 PEK → ARN Jul 4, 12:50 UTCJul 4, 16:30 UTC3h 40m
2026-07-03 CCA968 MXP → PVG Jul 3, 11:10 UTCJul 3, 17:35 UTC6h 25m
2026-07-02 CCA949 PEK → MXP Jul 2, 21:05 UTCJul 3, 04:25 UTC7h 20m
2026-07-01 CCA848 - Jul 1, 10:30 UTCJul 1, 19:35 UTC9h 5m
2026-06-30 CCA847 PVG → LGW Jun 30, 19:40 UTCJul 1, 05:45 UTC10h 5m
2026-06-30 CCA1835 - Jun 30, 01:40 UTCJun 30, 01:50 UTC10m
2026-06-11 CCA936 FRA → PVG Jun 11, 17:45 UTCJun 12, 02:55 UTC9h 11m
2026-06-10 CCA935 PVG → FRA Jun 10, 19:45 UTCJun 11, 14:50 UTC19h 5m
2026-06-10 CCA935 PVG → FRA Jun 10, 14:00 UTCJun 11, 13:15 UTC23h 15m
2026-06-10 CCA848 LGW → PVG Jun 10, 11:20 UTCJun 11, 09:10 UTC21h 50m
2026-06-10 CCA848 LGW → PVG Jun 10, 10:35 UTCJun 11, 09:10 UTC22h 35m
2026-06-09 CCA851 PEK → NCE Jun 9, 20:20 UTCJun 10, 05:10 UTC8h 50m
2026-06-09 CCA1317 TSN → CAN Jun 9, 02:15 UTCJun 9, 02:35 UTC20m
2026-06-08 CCA862 GVA → PEK Jun 8, 11:50 UTCJun 8, 21:00 UTC9h 10m
2026-06-07 CCA861 PEK → GVA Jun 7, 22:15 UTCJun 8, 05:00 UTC6h 45m
2026-06-07 CCA861 PEK → GVA Jun 7, 19:15 UTCJun 7, 19:25 UTC10m
2026-06-07 CCA1368 SZX → PEK Jun 7, 06:30 UTCJun 7, 06:40 UTC10m
2026-06-07 CCA1367 PEK → SZX Jun 7, 01:30 UTCJun 7, 01:50 UTC20m
2026-06-06 CCA852 NCE → PEK Jun 6, 20:45 UTCJun 6, 21:00 UTC15m
2026-06-06 CCA852 NCE → PEK Jun 6, 11:55 UTCJun 6, 18:25 UTC6h 30m
2026-06-05 CCA851 PEK → NCE Jun 5, 19:05 UTCJun 6, 05:05 UTC10h 0m
2026-06-05 CCA1352 CAN → PEK Jun 5, 07:30 UTCJun 5, 07:40 UTC10m

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-32DL page for operator, model, and routing details .

Mode-S 781F2D frequently asked

What is Mode-S code 781F2D?
781F2D is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DL.
Where is Mode-S 781F2D registered?
Mode-S code 781F2D is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F2D broadcasting right now?
No active broadcast right now. Last signal was 44m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F2D, octal 36017455, decimal 7,872,301.
What flights does 781F2D operate?
Mode-S 781F2D has broadcast 20 distinct callsigns, including CCA935, CCA840, CCA839, CCA848, CCA968.