Apparatus

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sensors Mode-S transponder

781159

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8583 · AIRBUS A-321

Hex
781159
Octal
36010531
Decimal
7,868,761
Country
CN
Tail
B-8583
Type
A321
No current signal · last broadcast 2h ago
Flights observed
54
Distinct callsigns
18
Country
CN
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 781159.

Country allocation

The ICAO 24-bit address 781159 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 18 distinct

Callsign Airline Flights Last seen
CCA139 Air China 15 2026-05-30
CCA140 Air China 12 2026-05-21
CCA728 Air China 4 2026-04-28
CCA727 Air China 4 2026-04-28
CCA1734 Air China 3 2026-05-23
CCA1733 Air China 3 2026-05-23
CCA1797 Air China 2 2026-05-13
CCA9810 Air China 1 2026-05-01
CCA9809 Air China 1 2026-05-01
CCA726 Air China 1 2026-05-07
CCA725 Air China 1 2026-05-07
CCA1738 Air China 1 2026-05-29
CCA1737 Air China 1 2026-05-29
CCA1730 Air China 1 2026-05-25
CCA1710 Air China 1 2026-05-04
CCA1573 - 1 2026-04-29
CCA146 Air China 1 2026-05-16
CCA145 Air China 1 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CCA139 HGH → ICN May 30, 02:30 UTCMay 30, 03:05 UTC35m
2026-05-29 CCA1738 SZX → HGH May 29, 03:15 UTCMay 29, 03:30 UTC15m
2026-05-29 CCA1737 HGH → SZX May 29, 01:10 UTCMay 29, 01:30 UTC20m
2026-05-25 CCA1730 PEK → HGH May 25, 12:45 UTCMay 25, 12:55 UTC10m
2026-05-23 CCA1734 SZX → HGH May 23, 11:25 UTCMay 23, 11:35 UTC10m
2026-05-23 CCA1733 HGH → SZX May 23, 09:35 UTCMay 23, 09:55 UTC20m
2026-05-21 CCA140 ICN → HGH May 21, 04:55 UTCMay 21, 05:20 UTC25m
2026-05-21 CCA139 HGH → ICN May 21, 02:40 UTCMay 21, 03:15 UTC35m
2026-05-17 CCA140 ICN → HGH May 17, 04:40 UTCMay 17, 05:10 UTC30m
2026-05-16 CCA146 NRT → HGH May 16, 12:16 UTCMay 17, 03:00 UTC14h 45m
2026-05-16 CCA145 HGH → NRT May 16, 08:41 UTCMay 16, 10:20 UTC1h 40m
2026-05-13 CCA1797 HGH → CAN May 13, 15:15 UTCMay 13, 16:15 UTC1h 0m
2026-05-12 CCA1734 SZX → HGH May 12, 11:20 UTCMay 12, 11:30 UTC10m
2026-05-12 CCA1733 HGH → SZX May 12, 09:20 UTCMay 12, 09:45 UTC25m
2026-05-11 CCA140 ICN → HGH May 11, 04:55 UTCMay 11, 05:40 UTC45m
2026-05-11 CCA139 HGH → ICN May 11, 02:30 UTCMay 11, 03:10 UTC40m
2026-05-10 CCA139 HGH → ICN May 10, 04:50 UTCMay 11, 03:10 UTC22h 20m
2026-05-10 CCA139 HGH → ICN May 10, 02:20 UTCMay 10, 03:00 UTC40m
2026-05-09 CCA140 ICN → HGH May 9, 04:55 UTCMay 10, 03:00 UTC22h 5m
2026-05-09 CCA139 HGH → ICN May 9, 02:30 UTCMay 9, 03:10 UTC40m
2026-05-07 CCA726 KIX → HGH May 7, 03:55 UTCMay 7, 04:35 UTC40m
2026-05-07 CCA725 HGH → KIX May 7, 01:30 UTCMay 7, 02:00 UTC30m
2026-05-06 CCA140 ICN → HGH May 6, 04:55 UTCMay 7, 02:00 UTC21h 5m
2026-05-06 CCA139 HGH → ICN May 6, 02:30 UTCMay 6, 03:15 UTC45m
2026-05-04 CCA1797 HGH → CAN May 4, 16:05 UTCMay 4, 16:15 UTC10m
2026-05-04 CCA1734 SZX → HGH May 4, 11:00 UTCMay 4, 11:10 UTC10m
2026-05-04 CCA1733 HGH → SZX May 4, 08:55 UTCMay 4, 09:15 UTC20m
2026-05-04 CCA1710 PEK → HGH May 4, 02:45 UTCMay 4, 03:00 UTC15m
2026-05-03 CCA140 ICN → HGH May 3, 04:50 UTCMay 3, 05:40 UTC50m
2026-05-03 CCA139 HGH → ICN May 3, 02:35 UTCMay 3, 03:10 UTC35m
2026-05-01 CCA9810 HAK → HGH May 1, 13:40 UTCMay 1, 13:50 UTC10m
2026-05-01 CCA9809 HGH → HAK May 1, 10:30 UTCMay 1, 10:50 UTC20m
2026-04-29 CCA1573 - Apr 29, 13:40 UTCApr 29, 13:50 UTC10m
2026-04-28 CCA728 HKG → HGH Apr 28, 11:00 UTCApr 28, 12:00 UTC1h 0m
2026-04-28 CCA727 HGH → HKG Apr 28, 08:50 UTCApr 28, 09:20 UTC30m
2026-04-27 CCA140 ICN → HGH Apr 27, 04:55 UTCApr 27, 05:35 UTC40m
2026-04-27 CCA139 HGH → ICN Apr 27, 02:40 UTCApr 27, 03:20 UTC40m
2026-04-25 CCA140 ICN → HGH Apr 25, 05:25 UTCApr 25, 06:10 UTC45m
2026-04-25 CCA139 HGH → ICN Apr 25, 03:00 UTCApr 25, 03:40 UTC40m
2026-04-24 CCA140 ICN → HGH Apr 24, 04:55 UTCApr 24, 05:40 UTC45m
2026-04-23 CCA728 HKG → HGH Apr 23, 11:10 UTCApr 24, 02:55 UTC15h 44m
2026-04-23 CCA727 HGH → HKG Apr 23, 08:30 UTCApr 23, 09:05 UTC35m
2026-04-21 CCA728 HKG → HGH Apr 21, 11:00 UTCApr 21, 12:05 UTC1h 5m
2026-04-21 CCA727 HGH → HKG Apr 21, 09:15 UTCApr 21, 09:20 UTC5m
2026-04-20 CCA140 ICN → HGH Apr 20, 04:45 UTCApr 20, 05:30 UTC45m
2026-04-20 CCA139 HGH → ICN Apr 20, 02:30 UTCApr 20, 03:10 UTC40m
2026-04-19 CCA139 HGH → ICN Apr 19, 04:50 UTCApr 20, 03:10 UTC22h 20m
2026-04-18 CCA139 HGH → ICN Apr 18, 08:20 UTCApr 19, 02:55 UTC18h 35m
2026-04-18 CCA140 ICN → HGH Apr 18, 07:30 UTCApr 19, 02:55 UTC19h 25m
2026-04-18 CCA139 HGH → ICN Apr 18, 02:20 UTCApr 18, 02:50 UTC30m

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-8583 page for operator, model, and routing details .

Mode-S 781159 frequently asked

What is Mode-S code 781159?
781159 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8583.
Where is Mode-S 781159 registered?
Mode-S code 781159 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781159 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 781159, octal 36010531, decimal 7,868,761.
What flights does 781159 operate?
Mode-S 781159 has broadcast 18 distinct callsigns, including CCA139, CCA140, CCA728, CCA727, CCA1734.