Apparatus

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sensors Mode-S transponder

781140

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-1423 · BOEING 767-300

Hex
781140
Octal
36010500
Decimal
7,868,736
Country
CN
Tail
B-1423
Type
B763
No current signal · last broadcast 7h ago
Flights observed
58
Distinct callsigns
20
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 781140.

Country allocation

The ICAO 24-bit address 781140 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
CSS7103 SF Airlines 7 2026-05-09
CSS6846 SF Airlines 4 2026-05-29
CSS6845 SF Airlines 4 2026-05-29
CSS239 SF Airlines 4 2026-05-12
CSS167 - 4 2026-05-12
CSS161 SF Airlines 4 2026-05-11
CSS173 - 3 2026-05-14
CSS168 SF Airlines 3 2026-05-13
CSS7223 SF Airlines 2 2026-05-17
CSS6840 SF Airlines 2 2026-05-24
CSS6835 SF Airlines 2 2026-05-17
CSS6805 SF Airlines 2 2026-05-22
CSS6803 SF Airlines 2 2026-05-24
CSS6802 SF Airlines 2 2026-05-22
CSS164 SF Airlines 2 2026-04-16
CSS163 SF Airlines 2 2026-04-16
CSS160 SF Airlines 2 2026-04-14
CSS7635 SF Airlines 1 2026-04-24
CSS7104 SF Airlines 1 2026-04-20
CSS6806 SF Airlines 1 2026-04-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CSS6846 NTG → SZX May 29, 23:50 UTCMay 30, 00:45 UTC55m
2026-05-29 CSS6845 SZX → NTG May 29, 19:25 UTCMay 29, 19:35 UTC10m
2026-05-28 CSS6846 NTG → SZX May 28, 23:50 UTCMay 29, 00:05 UTC15m
2026-05-28 CSS6845 SZX → NTG May 28, 18:55 UTCMay 28, 19:05 UTC10m
2026-05-27 CSS6846 NTG → SZX May 27, 23:55 UTCMay 28, 00:15 UTC20m
2026-05-27 CSS6845 SZX → NTG May 27, 19:00 UTCMay 27, 19:15 UTC15m
2026-05-26 CSS6846 NTG → SZX May 26, 23:54 UTCMay 27, 00:14 UTC20m
2026-05-26 CSS6845 SZX → NTG May 26, 18:55 UTCMay 26, 19:05 UTC10m
2026-05-24 CSS6803 SZX → EHU May 24, 17:15 UTCMay 24, 17:30 UTC15m
2026-05-24 CSS6840 WUX → SZX May 24, 01:40 UTCMay 24, 01:55 UTC15m
2026-05-23 CSS6803 SZX → EHU May 23, 17:30 UTCMay 23, 17:45 UTC15m
2026-05-22 CSS6802 EHU → SZX May 22, 21:55 UTCMay 22, 22:10 UTC15m
2026-05-22 CSS6805 SZX → EHU May 22, 16:35 UTCMay 22, 16:45 UTC10m
2026-05-21 CSS6802 EHU → SZX May 21, 21:55 UTCMay 21, 22:05 UTC10m
2026-05-17 CSS6835 SZX → HGH May 17, 20:50 UTCMay 17, 21:05 UTC15m
2026-05-17 CSS7223 HGH → SZX May 17, 18:20 UTCMay 17, 19:10 UTC50m
2026-05-16 CSS6835 SZX → HGH May 16, 21:00 UTCMay 16, 21:10 UTC10m
2026-05-16 CSS7223 HGH → SZX May 16, 18:40 UTCMay 16, 19:05 UTC25m
2026-05-15 CSS158 DEL → EHU May 15, 13:00 UTCMay 15, 15:20 UTC2h 19m
2026-05-14 CSS157 EHU → DEL May 14, 21:40 UTCMay 15, 10:50 UTC13h 10m
2026-05-14 CSS174 - May 14, 20:50 UTCMay 14, 21:05 UTC15m
2026-05-14 CSS173 - May 14, 18:20 UTCMay 14, 18:35 UTC15m
2026-05-14 CSS173 - May 14, 15:45 UTCMay 14, 17:45 UTC2h 0m
2026-05-13 CSS168 HAN → EHU May 13, 06:25 UTCMay 13, 08:35 UTC2h 10m
2026-05-12 CSS167 DEL → DEL May 12, 15:10 UTCMay 13, 04:05 UTC12h 55m
2026-05-12 CSS239 ZUH → DEL May 12, 10:25 UTCMay 12, 13:35 UTC3h 10m
2026-05-11 CSS161 EHU → DEL May 11, 19:55 UTCMay 11, 22:35 UTC2h 39m
2026-05-11 CSS161 EHU → DEL May 11, 02:05 UTCMay 11, 22:35 UTC20h 30m
2026-05-11 CSS161 EHU → DEL May 11, 00:49 UTCMay 11, 22:35 UTC21h 45m
2026-05-10 CSS167 - May 10, 20:40 UTCMay 10, 23:05 UTC2h 25m
2026-05-09 CSS7103 PEK → EHU May 9, 16:45 UTCMay 9, 17:00 UTC15m
2026-05-08 CSS232 - May 8, 02:19 UTCMay 8, 10:35 UTC8h 15m
2026-05-05 CSS7103 PEK → EHU May 5, 17:05 UTCMay 5, 17:15 UTC10m
2026-05-04 CSS7103 PEK → EHU May 4, 16:25 UTCMay 4, 16:40 UTC15m
2026-04-30 CSS7103 PEK → EHU Apr 30, 16:55 UTCApr 30, 17:10 UTC15m
2026-04-28 CSS7103 PEK → EHU Apr 28, 16:40 UTCApr 28, 16:55 UTC15m
2026-04-26 CSS6806 EHU → SZX Apr 26, 21:00 UTCApr 26, 21:10 UTC10m
2026-04-24 CSS7635 SHE → EHU Apr 24, 22:05 UTCApr 25, 16:30 UTC18h 25m
2026-04-22 CSS7103 PEK → EHU Apr 22, 16:40 UTCApr 22, 17:00 UTC20m
2026-04-21 CSS7103 PEK → EHU Apr 21, 16:45 UTCApr 21, 17:05 UTC20m
2026-04-20 CSS7104 EHU → PEK Apr 20, 21:45 UTCApr 20, 21:55 UTC10m
2026-04-20 CSS6805 SZX → EHU Apr 20, 16:55 UTCApr 20, 17:05 UTC10m
2026-04-20 CSS6840 WUX → SZX Apr 20, 01:55 UTCApr 20, 02:05 UTC10m
2026-04-16 CSS164 DEL → EHU Apr 16, 07:09 UTCApr 16, 08:45 UTC1h 35m
2026-04-16 CSS164 DEL → EHU Apr 16, 06:25 UTCApr 16, 07:05 UTC40m
2026-04-16 CSS163 EHU → DEL Apr 16, 03:09 UTCApr 16, 04:20 UTC1h 10m
2026-04-16 CSS163 EHU → DEL Apr 16, 01:50 UTCApr 16, 03:04 UTC1h 15m
2026-04-15 CSS168 HAN → EHU Apr 15, 07:01 UTCApr 15, 08:25 UTC1h 25m
2026-04-15 CSS168 HAN → EHU Apr 15, 06:10 UTCApr 15, 06:55 UTC45m
2026-04-15 CSS167 - Apr 15, 02:55 UTCApr 15, 04:05 UTC1h 10m

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-1423 page for operator, model, and routing details .

Mode-S 781140 frequently asked

What is Mode-S code 781140?
781140 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-1423.
Where is Mode-S 781140 registered?
Mode-S code 781140 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781140 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781140, octal 36010500, decimal 7,868,736.
What flights does 781140 operate?
Mode-S 781140 has broadcast 20 distinct callsigns, including CSS7103, CSS6846, CSS6845, CSS239, CSS167.