sensors Mode-S transponder

780823

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5629 · BOEING 737-800

Hex
780823
Octal
36004043
Decimal
7,866,403
Country
CN
Tail
B-5629
Type
B738
No current signal · last broadcast 3d ago
Flights observed
32
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 780823.

Country allocation

The ICAO 24-bit address 780823 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

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-05-26 CDG4910 ZUH → KHN May 26, 05:20 UTCMay 26, 05:30 UTC10m
2026-05-24 CDG4883 NGB → HAK May 24, 05:10 UTCMay 24, 08:20 UTC3h 10m
2026-05-22 CDG4910 ZUH → KHN May 22, 05:55 UTCMay 22, 06:05 UTC10m
2026-05-20 CDG4910 ZUH → KHN May 20, 04:50 UTCMay 20, 05:00 UTC10m
2026-05-17 CDG2128 PEK → XMN May 17, 13:55 UTCMay 17, 14:05 UTC10m
2026-05-13 CDG1162 ZUH → PEK May 13, 01:10 UTCMay 13, 01:20 UTC10m
2026-05-10 CDG2295 ZUH → SHA May 10, 10:10 UTCMay 10, 10:19 UTC10m
2026-05-08 CDG8002 ICN → TNA May 8, 03:35 UTCMay 8, 03:44 UTC10m
2026-05-07 CDG8010 ICN → TNA May 7, 13:35 UTCMay 7, 13:45 UTC10m
2026-05-07 CDG8009 TNA → ICN May 7, 11:25 UTCMay 7, 11:40 UTC15m
2026-05-06 CDG8004 ICN → TNA May 6, 18:10 UTCMay 7, 06:40 UTC12h 30m
2026-05-06 CDG8003 TNA → ICN May 6, 16:55 UTCMay 6, 17:05 UTC10m
2026-05-06 CDG1188 SZX → TNA May 6, 07:35 UTCMay 6, 07:45 UTC10m
2026-05-05 CDG8008 ICN → TNA May 5, 23:50 UTCMay 6, 00:01 UTC10m
2026-05-05 CDG8007 TNA → ICN May 5, 14:05 UTCMay 5, 14:15 UTC10m
2026-05-04 CDG1183 WUS → SZX May 4, 06:30 UTCMay 4, 06:50 UTC20m
2026-05-03 CDG8086 KIX → TNA May 3, 07:40 UTCMay 3, 09:05 UTC1h 25m
2026-05-02 CDG8085 TNA → KIX May 2, 23:55 UTCMay 3, 05:40 UTC5h 44m
2026-05-02 CDG4611 TAO → ICN May 2, 03:10 UTCMay 2, 03:35 UTC25m
2026-04-27 CDG1196 ZUH → TNA Apr 27, 09:45 UTCApr 27, 09:55 UTC10m
2026-04-21 CDG4086 TPE → TAO Apr 21, 09:00 UTCApr 21, 09:15 UTC15m
2026-04-21 CDG4085 TAO → TPE Apr 21, 07:05 UTCApr 21, 07:35 UTC30m
2026-04-20 CDG4686 SZX → TAO Apr 20, 12:00 UTCApr 20, 12:10 UTC10m
2026-04-20 CDG4685 TAO → SZX Apr 20, 10:30 UTCApr 20, 10:45 UTC15m
2026-04-20 CDG4612 ICN → TAO Apr 20, 05:10 UTCApr 20, 05:20 UTC10m
2026-04-20 CDG4611 TAO → ICN Apr 20, 03:30 UTCApr 20, 03:40 UTC10m
2026-04-14 CDG4686 SZX → TAO Apr 14, 13:20 UTCApr 14, 13:30 UTC10m
2026-04-14 CDG4685 - Apr 14, 10:25 UTCApr 14, 10:50 UTC25m
2026-04-14 CDG4612 ICN → TAO Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 CDG4620 - Apr 13, 14:10 UTCApr 13, 14:40 UTC30m
2026-04-13 CDG4619 TAO → ICN Apr 13, 12:25 UTCApr 13, 12:35 UTC10m
2026-04-13 CDG4619 TAO → ICN Apr 13, 12:10 UTCApr 13, 12:35 UTC25m

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-5629 page for operator, model, and routing details .

Mode-S 780823 frequently asked

What is Mode-S code 780823?
780823 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5629.
Where is Mode-S 780823 registered?
Mode-S code 780823 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 780823 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 780823, octal 36004043, decimal 7,866,403.
What flights does 780823 operate?
Mode-S 780823 has broadcast 20 distinct callsigns, including CDG4910, CDG4686, CDG4685, CDG4619, CDG4612.