Apparatus

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sensors Mode-S transponder

781E13

ICAO 24-bit transponder address · allocated to China

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

Hex
781E13
Octal
36017023
Decimal
7,872,019
Country
CN
Tail
B-32AS
Type
A359
No current signal · last broadcast 9h ago
Flights observed
100
Distinct callsigns
20
Country
CN
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 781E13.

Country allocation

The ICAO 24-bit address 781E13 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 Air China 8 2026-04-30
CCA846 Air China 8 2026-05-08
CCA968 Air China 6 2026-05-27
CCA967 Air China 6 2026-05-26
CCA848 Air China 6 2026-05-23
CCA936 Air China 5 2026-04-30
CCA845 Air China 5 2026-05-08
CCA912 Air China 4 2026-04-24
CCA878 Air China 4 2026-04-23
CCA949 Air China 3 2026-05-17
CCA911 Air China 3 2026-04-23
CCA877 Air China 3 2026-04-22
CCA847 Air China 3 2026-05-23
CCA446 Air China 3 2026-05-18
CCA445 Air China 3 2026-05-20
CCA950 Air China 2 2026-05-21
CCA861 Air China 2 2026-05-03
CCA842 Air China 2 2026-05-29
CCA841 Air China 2 2026-05-28
CCA828 Air China 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CCA842 VIE → PEK May 29, 11:45 UTCMay 29, 20:05 UTC8h 20m
2026-05-28 CCA841 PEK → VIE May 28, 22:40 UTCMay 29, 04:15 UTC5h 35m
2026-05-27 CCA968 MXP → PVG May 27, 10:30 UTCMay 27, 17:05 UTC6h 35m
2026-05-26 CCA967 PVG → MXP May 26, 22:15 UTCMay 27, 05:14 UTC7h 0m
2026-05-24 CCA826 SIN → PVG May 24, 13:30 UTCMay 24, 16:45 UTC3h 15m
2026-05-23 CCA825 PVG → SIN May 23, 16:50 UTCMay 24, 11:00 UTC18h 10m
2026-05-23 CCA848 LGW → PVG May 23, 16:05 UTCMay 24, 11:00 UTC18h 55m
2026-05-23 CCA848 LGW → PVG May 23, 12:50 UTCMay 24, 11:00 UTC22h 10m
2026-05-23 CCA848 LGW → PVG May 23, 10:50 UTCMay 24, 10:45 UTC23h 55m
2026-05-23 CCA848 LGW → PVG May 23, 10:35 UTCMay 24, 07:50 UTC21h 15m
2026-05-23 CCA847 PVG → LGW May 23, 00:25 UTCMay 23, 07:25 UTC6h 59m
2026-05-22 CCA1421 PEK → CTU May 22, 00:55 UTCMay 22, 01:15 UTC20m
2026-05-21 CCA950 MXP → PEK May 21, 11:55 UTCMay 21, 18:30 UTC6h 35m
2026-05-20 CCA445 TFU → MXP May 20, 21:20 UTCMay 21, 04:00 UTC6h 40m
2026-05-20 CCA445 TFU → MXP May 20, 02:55 UTCMay 21, 02:45 UTC23h 51m
2026-05-20 CCA445 TFU → MXP May 20, 00:50 UTCMay 21, 00:25 UTC23h 36m
2026-05-19 CCA424 LHR → TFU May 19, 22:50 UTCMay 20, 22:15 UTC23h 26m
2026-05-19 CCA424 LHR → TFU May 19, 21:15 UTCMay 20, 03:40 UTC6h 25m
2026-05-19 CCA423 TFU → LHR May 19, 11:55 UTCMay 19, 19:10 UTC7h 15m
2026-05-18 CCA423 TFU → LHR May 18, 17:05 UTCMay 19, 14:55 UTC21h 49m
2026-05-18 CCA446 MXP → TFU May 18, 14:55 UTCMay 19, 14:40 UTC23h 44m
2026-05-18 CCA446 MXP → TFU May 18, 12:50 UTCMay 19, 12:45 UTC23h 54m
2026-05-18 CCA446 MXP → TFU May 18, 11:25 UTCMay 18, 17:55 UTC6h 30m
2026-05-17 CCA949 PEK → MXP May 17, 20:45 UTCMay 18, 04:00 UTC7h 15m
2026-05-17 CCA949 PEK → MXP May 17, 17:45 UTCMay 17, 17:55 UTC10m
2026-05-16 CCA848 LGW → PVG May 16, 10:46 UTCMay 16, 17:05 UTC6h 20m
2026-05-16 CCA847 PVG → LGW May 16, 00:20 UTCMay 16, 07:05 UTC6h 46m
2026-05-14 CCA842 VIE → PEK May 14, 11:50 UTCMay 14, 17:30 UTC5h 40m
2026-05-13 CCA841 PEK → VIE May 13, 20:55 UTCMay 14, 04:25 UTC7h 30m
2026-05-12 CCA848 LGW → PVG May 12, 10:40 UTCMay 12, 16:50 UTC6h 10m
2026-05-11 CCA847 PVG → LGW May 11, 21:10 UTCMay 12, 05:30 UTC8h 20m
2026-05-10 CCA968 MXP → PVG May 10, 10:35 UTCMay 10, 16:44 UTC6h 10m
2026-05-09 CCA949 PEK → MXP May 9, 21:14 UTCMay 10, 04:00 UTC6h 45m
2026-05-09 CCA1421 PEK → CTU May 9, 00:50 UTCMay 9, 01:10 UTC20m
2026-05-08 CCA846 BCN → PEK May 8, 12:20 UTCMay 8, 21:45 UTC9h 25m
2026-05-08 CCA845 PEK → BCN May 8, 00:14 UTCMay 8, 09:30 UTC9h 15m
2026-05-07 CCA1563 PEK → SHA May 7, 11:45 UTCMay 7, 11:55 UTC10m
2026-05-07 CCA1531 PEK → SHA May 7, 02:45 UTCMay 7, 02:55 UTC10m
2026-05-06 CCA846 BCN → PEK May 6, 20:35 UTCMay 6, 20:50 UTC15m
2026-05-06 CCA846 BCN → PEK May 6, 11:05 UTCMay 6, 18:10 UTC7h 4m
2026-05-05 CCA845 PEK → BCN May 5, 19:35 UTCMay 6, 07:10 UTC11h 35m
2026-05-05 CCA1332 SZX → PEK May 5, 05:15 UTCMay 5, 05:25 UTC10m
2026-05-05 CCA1331 PEK → SZX May 5, 00:25 UTCMay 5, 00:45 UTC20m
2026-05-04 CCA862 GVA → PEK May 4, 11:30 UTCMay 4, 20:20 UTC8h 51m
2026-05-03 CCA861 PEK → GVA May 3, 22:30 UTCMay 4, 05:50 UTC7h 20m
2026-05-03 CCA861 PEK → GVA May 3, 19:10 UTCMay 3, 19:20 UTC10m
2026-05-03 CCA1301 PEK → CAN May 3, 07:25 UTCMay 3, 07:45 UTC20m
2026-05-02 CCA1589 PEK → SHA May 2, 12:50 UTCMay 2, 13:05 UTC15m
2026-04-30 CCA936 FRA → PVG Apr 30, 17:40 UTCMay 1, 02:45 UTC9h 5m
2026-04-30 CCA935 PVG → FRA Apr 30, 05:05 UTCApr 30, 14:50 UTC9h 45m

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

Mode-S 781E13 frequently asked

What is Mode-S code 781E13?
781E13 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32AS.
Where is Mode-S 781E13 registered?
Mode-S code 781E13 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781E13 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781E13, octal 36017023, decimal 7,872,019.
What flights does 781E13 operate?
Mode-S 781E13 has broadcast 20 distinct callsigns, including CCA935, CCA846, CCA968, CCA967, CCA848.