Apparatus

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sensors Mode-S transponder

781194

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1457 · BOEING 737-800

Hex
781194
Octal
36010624
Decimal
7,868,820
Country
CN
Tail
B-1457
Type
B738
No current signal · last broadcast 10h ago
Flights observed
71
Distinct callsigns
20
Country
CN
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 781194.

Country allocation

The ICAO 24-bit address 781194 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
CXA8781 - 8 2026-07-10
CXA8818 - 5 2026-06-29
CXA8555 - 5 2026-06-28
CXA8380 - 2 2026-07-21
CXA8379 - 2 2026-07-21
CXA8375 Xiamen Airlines 2 2026-05-05
CXA8230 Xiamen Airlines 2 2026-06-09
CXA8229 Xiamen Airlines 2 2026-06-09
CXA8076 Xiamen Airlines 2 2026-05-24
CXA895 Xiamen Airlines 1 2026-04-18
CXA8828 Xiamen Airlines 1 2026-04-24
CXA8790 - 1 2026-05-26
CXA8782 - 1 2026-06-24
CXA8765 Xiamen Airlines 1 2026-07-21
CXA8720 - 1 2026-07-12
CXA8719 - 1 2026-07-12
CXA8670 - 1 2026-07-06
CXA8669 - 1 2026-07-06
CXA8648 Xiamen Airlines 1 2026-06-20
CXA8647 - 1 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 CXA8765 HGH → WUH Jul 21, 09:30 UTCJul 21, 09:50 UTC20m
2026-07-21 CXA8380 - Jul 21, 04:45 UTCJul 21, 04:55 UTC10m
2026-07-21 CXA8379 - Jul 21, 02:05 UTCJul 21, 02:25 UTC20m
2026-07-19 CXA8074 - Jul 19, 05:10 UTCJul 19, 05:20 UTC10m
2026-07-17 CXA8380 - Jul 17, 04:39 UTCJul 17, 04:49 UTC10m
2026-07-17 CXA8379 - Jul 17, 02:05 UTCJul 17, 02:20 UTC15m
2026-07-12 CXA8720 - Jul 12, 10:35 UTCJul 12, 11:30 UTC55m
2026-07-12 CXA8719 - Jul 12, 08:40 UTCJul 12, 09:05 UTC25m
2026-07-12 CXA8050 - Jul 12, 03:45 UTCJul 12, 04:25 UTC40m
2026-07-10 CXA8781 - Jul 10, 00:15 UTCJul 10, 08:05 UTC7h 50m
2026-07-09 CXA8079 - Jul 9, 00:20 UTCJul 9, 00:50 UTC30m
2026-07-07 CXA8453 - Jul 7, 14:05 UTCJul 7, 14:15 UTC10m
2026-07-06 CXA8670 - Jul 6, 12:40 UTCJul 6, 13:50 UTC1h 10m
2026-07-06 CXA8669 - Jul 6, 09:35 UTCJul 6, 10:45 UTC1h 10m
2026-07-03 CXA8023 - Jul 3, 09:35 UTCJul 3, 09:50 UTC15m
2026-06-29 CXA8818 - Jun 29, 09:14 UTCJun 30, 02:05 UTC16h 51m
2026-06-29 CXA8818 - Jun 29, 01:10 UTCJun 29, 09:29 UTC8h 20m
2026-06-28 CXA8818 - Jun 28, 11:04 UTCJun 29, 09:29 UTC22h 25m
2026-06-28 CXA8555 - Jun 28, 03:19 UTCJun 29, 01:55 UTC22h 35m
2026-06-27 CXA8555 - Jun 27, 14:00 UTCJun 28, 11:50 UTC21h 50m
2026-06-27 CXA8645 - Jun 27, 02:35 UTCJun 27, 02:45 UTC10m
2026-06-24 CXA8782 - Jun 24, 07:54 UTCJun 25, 04:54 UTC21h 0m
2026-06-24 CXA8781 - Jun 24, 04:15 UTCJun 24, 08:04 UTC3h 50m
2026-06-23 CXA8781 - Jun 23, 09:24 UTCJun 23, 23:55 UTC14h 30m
2026-06-22 CXA8044 - Jun 22, 07:19 UTCJun 22, 07:49 UTC30m
2026-06-21 CXA820 - Jun 21, 14:19 UTCJun 21, 15:40 UTC1h 20m
2026-06-21 CXA819 - Jun 21, 11:20 UTCJun 21, 12:44 UTC1h 25m
2026-06-21 CXA8304 - Jun 21, 04:04 UTCJun 21, 04:14 UTC10m
2026-06-21 CXA8303 - Jun 21, 02:35 UTCJun 21, 02:50 UTC15m
2026-06-20 CXA8648 HKG → FOC Jun 20, 13:14 UTCJun 20, 14:54 UTC1h 40m
2026-06-20 CXA8647 - Jun 20, 09:44 UTCJun 20, 11:40 UTC1h 55m
2026-06-18 CXA8390 - Jun 18, 19:15 UTCJun 18, 19:30 UTC15m
2026-06-18 CXA8389 CKG → SZX Jun 18, 17:15 UTCJun 18, 17:30 UTC15m
2026-06-16 CXA8346 SZX → HGH Jun 16, 17:15 UTCJun 16, 17:24 UTC10m
2026-06-16 CXA8345 - Jun 16, 15:45 UTCJun 16, 15:55 UTC10m
2026-06-13 CXA8555 PKX → PVG Jun 13, 00:45 UTCJun 13, 14:40 UTC13h 54m
2026-06-12 CXA8818 HRB → HGH Jun 12, 09:20 UTCJun 13, 00:55 UTC15h 35m
2026-06-11 CXA8555 PKX → PVG Jun 11, 00:35 UTCJun 11, 05:45 UTC5h 10m
2026-06-09 CXA8230 TSN → HGH Jun 9, 11:50 UTCJun 9, 12:15 UTC25m
2026-06-09 CXA8229 TSN → URC Jun 9, 03:30 UTCJun 9, 03:55 UTC25m
2026-06-08 CXA8555 PKX → PVG Jun 8, 01:05 UTCJun 8, 10:00 UTC8h 55m
2026-06-07 CXA8051 - Jun 7, 11:05 UTCJun 7, 11:20 UTC15m
2026-06-07 CXA8342 - Jun 7, 08:30 UTCJun 7, 08:45 UTC15m
2026-06-06 CXA8341 - Jun 6, 11:30 UTCJun 7, 06:00 UTC18h 30m
2026-06-05 CXA8316 HAK → HGH Jun 5, 01:05 UTCJun 5, 03:55 UTC2h 50m
2026-05-28 - - May 28, 08:45 UTCMay 28, 09:00 UTC15m
2026-05-27 CXA8781 SHE → FOC May 27, 23:40 UTCMay 28, 08:00 UTC8h 20m
2026-05-27 CXA8781 SHE → FOC May 27, 10:40 UTCMay 28, 08:00 UTC21h 20m
2026-05-27 CXA8781 SHE → FOC May 27, 07:50 UTCMay 28, 04:45 UTC20h 55m
2026-05-27 CXA8781 SHE → FOC May 27, 03:59 UTCMay 28, 00:20 UTC20h 20m

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-1457 page for operator, model, and routing details .

Mode-S 781194 frequently asked

What is Mode-S code 781194?
781194 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1457.
Where is Mode-S 781194 registered?
Mode-S code 781194 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781194 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781194, octal 36010624, decimal 7,868,820.
What flights does 781194 operate?
Mode-S 781194 has broadcast 20 distinct callsigns, including CXA8781, CXA8818, CXA8555, CXA8380, CXA8379.