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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 1d ago
Flights observed
136
Distinct callsigns
20
Country
CN
Last broadcast
1d 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 - 10 2026-07-06
CSS363 SF Airlines 9 2026-06-22
CSS364 - 8 2026-06-23
CSS167 - 6 2026-06-05
CSS6846 - 5 2026-06-19
CSS6845 SF Airlines 5 2026-06-18
CSS242 - 5 2026-07-08
CSS238 - 5 2026-07-04
CSS168 SF Airlines 5 2026-06-06
CSS161 SF Airlines 5 2026-06-06
CSS6805 - 4 2026-06-28
CSS241 - 4 2026-07-08
CSS239 SF Airlines 4 2026-05-12
CSS173 - 4 2026-06-04
CSS7223 SF Airlines 3 2026-06-02
CSS6835 SF Airlines 3 2026-06-02
CSS6803 SF Airlines 3 2026-05-30
CSS6802 - 3 2026-07-09
CSS164 SF Airlines 3 2026-06-04
CSS163 SF Airlines 3 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CSS232 - Jul 13, 07:35 UTCJul 13, 11:05 UTC3h 30m
2026-07-13 CSS231 - Jul 13, 05:01 UTCJul 13, 05:20 UTC20m
2026-07-13 CSS231 - Jul 13, 02:05 UTCJul 13, 03:40 UTC1h 35m
2026-07-11 CSS276 - Jul 11, 07:30 UTCJul 11, 09:25 UTC1h 55m
2026-07-11 CSS275 - Jul 11, 02:15 UTCJul 11, 05:01 UTC2h 45m
2026-07-10 CSS6801 SZX → EHU Jul 10, 17:35 UTCJul 10, 17:50 UTC15m
2026-07-09 CSS6802 - Jul 9, 22:05 UTCJul 9, 22:15 UTC10m
2026-07-09 CSS6801 SZX → EHU Jul 9, 17:50 UTCJul 9, 18:05 UTC15m
2026-07-09 CSS358 - Jul 9, 02:40 UTCJul 9, 03:55 UTC1h 15m
2026-07-08 CSS357 - Jul 8, 22:50 UTCJul 9, 00:10 UTC1h 20m
2026-07-08 CSS6804 - Jul 8, 20:50 UTCJul 8, 21:05 UTC15m
2026-07-08 CSS242 - Jul 8, 08:30 UTCJul 8, 11:25 UTC2h 55m
2026-07-08 CSS241 - Jul 8, 03:00 UTCJul 8, 06:00 UTC3h 0m
2026-07-06 CSS7103 - Jul 6, 17:20 UTCJul 6, 17:40 UTC20m
2026-07-04 CSS238 - Jul 4, 00:55 UTCJul 4, 08:25 UTC7h 30m
2026-07-03 CSS238 - Jul 3, 10:05 UTCJul 4, 08:25 UTC22h 20m
2026-07-03 CSS242 - Jul 3, 08:35 UTCJul 4, 08:00 UTC23h 25m
2026-07-03 CSS241 - Jul 3, 03:25 UTCJul 3, 06:40 UTC3h 15m
2026-06-30 CSS238 - Jun 30, 02:05 UTCJun 30, 09:25 UTC7h 20m
2026-06-28 CSS6805 - Jun 28, 17:00 UTCJun 28, 17:10 UTC10m
2026-06-27 CSS238 - Jun 27, 01:09 UTCJun 27, 08:14 UTC7h 5m
2026-06-26 CSS238 - Jun 26, 10:05 UTCJun 27, 08:14 UTC22h 10m
2026-06-26 CSS242 - Jun 26, 08:05 UTCJun 27, 07:59 UTC23h 55m
2026-06-26 CSS242 - Jun 26, 07:35 UTCJun 27, 02:55 UTC19h 20m
2026-06-25 CSS241 - Jun 25, 16:05 UTCJun 26, 05:44 UTC13h 40m
2026-06-24 CSS258 - Jun 24, 06:39 UTCJun 24, 07:10 UTC30m
2026-06-24 CSS257 - Jun 24, 04:20 UTCJun 24, 05:05 UTC45m
2026-06-23 CSS6805 - Jun 23, 17:09 UTCJun 23, 17:20 UTC10m
2026-06-23 CSS364 - Jun 23, 05:49 UTCJun 23, 06:09 UTC20m
2026-06-23 CSS364 - Jun 23, 01:25 UTCJun 23, 03:25 UTC2h 0m
2026-06-22 CSS363 SZX → NRT Jun 22, 21:30 UTCJun 22, 22:54 UTC1h 25m
2026-06-22 CSS363 SZX → NRT Jun 22, 19:14 UTCJun 22, 19:24 UTC10m
2026-06-22 CSS335 - Jun 22, 04:19 UTCJun 22, 13:59 UTC9h 40m
2026-06-21 CSS302 SIN → SZX Jun 21, 23:10 UTCJun 21, 23:30 UTC20m
2026-06-21 CSS302 SIN → SZX Jun 21, 20:05 UTCJun 21, 20:14 UTC10m
2026-06-21 CSS301 - Jun 21, 17:10 UTCJun 21, 17:50 UTC40m
2026-06-21 CSS301 - Jun 21, 14:24 UTCJun 21, 14:34 UTC10m
2026-06-21 CSS364 - Jun 21, 05:35 UTCJun 21, 05:49 UTC15m
2026-06-21 CSS364 - Jun 21, 01:30 UTCJun 21, 03:10 UTC1h 40m
2026-06-20 CSS363 SZX → NRT Jun 20, 21:25 UTCJun 20, 23:10 UTC1h 45m
2026-06-20 CSS364 - Jun 20, 03:19 UTCJun 20, 04:59 UTC1h 40m
2026-06-19 CSS363 SZX → NRT Jun 19, 23:49 UTCJun 20, 01:29 UTC1h 40m
2026-06-19 CSS363 SZX → NRT Jun 19, 21:39 UTCJun 19, 21:54 UTC15m
2026-06-19 CSS336 - Jun 19, 19:04 UTCJun 19, 19:14 UTC10m
2026-06-19 CSS336 - Jun 19, 06:59 UTCJun 19, 18:09 UTC11h 10m
2026-06-19 CSS6846 - Jun 19, 03:05 UTCJun 19, 03:20 UTC15m
2026-06-18 CSS6845 SZX → NTG Jun 18, 19:05 UTCJun 18, 19:15 UTC10m
2026-06-18 CSS364 - Jun 18, 02:35 UTCJun 18, 04:30 UTC1h 55m
2026-06-17 CSS363 SZX → NRT Jun 17, 22:55 UTCJun 18, 00:25 UTC1h 30m
2026-06-17 CSS363 SZX → NRT Jun 17, 20:45 UTCJun 17, 20:55 UTC10m

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 1d 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, CSS363, CSS364, CSS167, CSS6846.