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 3d ago
Flights observed
120
Distinct callsigns
20
Country
CN
Last broadcast
3d 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 20 distinct

Callsign Airline Flights Last seen
CCA139 - 22 2026-07-05
CCA140 - 20 2026-07-06
CCA1734 - 12 2026-06-27
CCA1733 - 11 2026-06-27
CCA1738 - 8 2026-06-30
CCA1737 - 8 2026-06-30
CCA728 - 6 2026-07-09
CCA727 - 6 2026-07-09
CCA1797 Air China 4 2026-06-24
CCA8546 - 3 2026-07-08
CCA146 Air China 3 2026-06-15
CCA145 Air China 3 2026-06-15
CCA1714 - 2 2026-06-29
CCA9810 Air China 1 2026-05-01
CCA9809 Air China 1 2026-05-01
CCA8360 - 1 2026-06-26
CCA726 Air China 1 2026-05-07
CCA725 Air China 1 2026-05-07
CCA1798 - 1 2026-07-11
CCA1793 - 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 CCA1798 - Jul 11, 01:50 UTCJul 11, 02:00 UTC10m
2026-07-10 - - Jul 10, 15:00 UTCJul 10, 15:15 UTC15m
2026-07-09 CCA728 - Jul 9, 11:00 UTCJul 9, 11:50 UTC50m
2026-07-09 CCA727 - Jul 9, 07:55 UTCJul 9, 08:45 UTC50m
2026-07-08 CCA8546 - Jul 8, 13:45 UTCJul 9, 00:35 UTC10h 50m
2026-07-08 CCA8546 - Jul 8, 05:10 UTCJul 9, 00:35 UTC19h 25m
2026-07-08 CCA8546 - Jul 8, 00:45 UTCJul 9, 00:15 UTC23h 30m
2026-07-06 CCA1728 - Jul 6, 13:25 UTCJul 6, 13:35 UTC10m
2026-07-06 CCA140 - Jul 6, 04:55 UTCJul 6, 05:35 UTC40m
2026-07-05 CCA139 - Jul 5, 08:55 UTCJul 6, 03:15 UTC18h 20m
2026-07-01 CCA140 - Jul 1, 06:40 UTCJul 1, 07:30 UTC50m
2026-07-01 CCA139 - Jul 1, 04:15 UTCJul 1, 05:10 UTC55m
2026-06-30 CCA1738 - Jun 30, 03:15 UTCJun 30, 03:25 UTC10m
2026-06-30 CCA1737 - Jun 30, 01:00 UTCJun 30, 01:45 UTC46m
2026-06-29 CCA1714 - Jun 29, 04:45 UTCJun 30, 01:45 UTC21h 1m
2026-06-27 CCA1734 - Jun 27, 11:04 UTCJun 27, 11:14 UTC10m
2026-06-27 CCA1733 - Jun 27, 09:09 UTCJun 27, 09:24 UTC15m
2026-06-27 CCA1738 - Jun 27, 03:15 UTCJun 27, 03:30 UTC15m
2026-06-26 CCA1734 - Jun 26, 12:00 UTCJun 26, 12:10 UTC10m
2026-06-26 CCA8360 - Jun 26, 04:30 UTCJun 26, 10:44 UTC6h 15m
2026-06-24 CCA1797 HGH → CAN Jun 24, 16:09 UTCJun 24, 16:24 UTC15m
2026-06-24 CCA1734 - Jun 24, 10:49 UTCJun 24, 10:59 UTC10m
2026-06-24 CCA1733 - Jun 24, 08:09 UTCJun 24, 08:30 UTC20m
2026-06-24 CCA1738 - Jun 24, 03:04 UTCJun 24, 03:15 UTC10m
2026-06-24 CCA1737 - Jun 24, 00:34 UTCJun 24, 01:30 UTC55m
2026-06-22 CCA1734 - Jun 22, 11:30 UTCJun 22, 11:39 UTC10m
2026-06-22 CCA1733 - Jun 22, 08:50 UTCJun 22, 09:49 UTC1h 0m
2026-06-22 CCA1737 - Jun 22, 01:05 UTCJun 22, 01:25 UTC20m
2026-06-19 CCA140 - Jun 19, 05:05 UTCJun 19, 05:49 UTC45m
2026-06-19 CCA139 - Jun 19, 02:04 UTCJun 19, 02:54 UTC50m
2026-06-18 CCA139 - Jun 18, 06:20 UTCJun 19, 02:54 UTC20h 34m
2026-06-18 CCA140 - Jun 18, 05:35 UTCJun 19, 02:54 UTC21h 19m
2026-06-18 CCA139 - Jun 18, 03:25 UTCJun 18, 04:10 UTC45m
2026-06-16 CCA1734 SZX → HGH Jun 16, 12:35 UTCJun 16, 12:45 UTC10m
2026-06-16 CCA1733 HGH → SZX Jun 16, 10:20 UTCJun 16, 10:40 UTC20m
2026-06-16 CCA1738 - Jun 16, 05:15 UTCJun 16, 05:30 UTC15m
2026-06-16 CCA1737 - Jun 16, 02:50 UTCJun 16, 03:00 UTC10m
2026-06-15 CCA146 NRT → HGH Jun 15, 12:10 UTCJun 16, 02:04 UTC13h 55m
2026-06-15 CCA145 HGH → NRT Jun 15, 08:25 UTCJun 15, 09:49 UTC1h 25m
2026-06-14 CCA1797 HGH → CAN Jun 14, 17:00 UTCJun 14, 17:25 UTC25m
2026-06-14 CCA1734 SZX → HGH Jun 14, 12:05 UTCJun 14, 12:25 UTC20m
2026-06-14 CCA1733 HGH → SZX Jun 14, 08:50 UTCJun 14, 09:40 UTC50m
2026-06-14 CCA1738 - Jun 14, 04:35 UTCJun 14, 04:45 UTC10m
2026-06-14 CCA1737 - Jun 14, 02:35 UTCJun 14, 02:45 UTC10m
2026-06-13 CCA146 NRT → HGH Jun 13, 12:15 UTCJun 13, 14:00 UTC1h 45m
2026-06-13 CCA145 HGH → NRT Jun 13, 08:20 UTCJun 13, 09:55 UTC1h 35m
2026-06-12 CCA1733 HGH → SZX Jun 12, 10:15 UTCJun 12, 10:25 UTC10m
2026-06-12 CCA1738 SZX → HGH Jun 12, 03:15 UTCJun 12, 03:25 UTC10m
2026-06-12 CCA1737 HGH → SZX Jun 12, 00:40 UTCJun 12, 01:35 UTC55m
2026-06-11 CCA1793 - Jun 11, 08:40 UTCJun 11, 08:55 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-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 3d 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 20 distinct callsigns, including CCA139, CCA140, CCA1734, CCA1733, CCA1738.