Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7823FE

ICAO 24-bit transponder address · allocated to China

Hex
7823FE
Octal
36021776
Decimal
7,873,534
Country
CN
No current signal · last broadcast 4h ago
Flights observed
74
Distinct callsigns
20
Country
CN
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 7823FE.

Country allocation

The ICAO 24-bit address 7823FE 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
CES6279 - 7 2026-06-12
CES6280 China Eastern Airlines 6 2026-06-12
CES5379 - 6 2026-06-16
CES5566 - 5 2026-07-06
CES5565 - 5 2026-07-06
CES6296 - 3 2026-06-13
CES5358 China Eastern Airlines 3 2026-07-22
CES5349 China Eastern Airlines 3 2026-07-22
CES5011 - 3 2026-06-25
CES240 - 3 2026-07-12
CES7365 - 2 2026-06-25
CES724 - 2 2026-06-26
CES6295 China Eastern Airlines 2 2026-06-10
CES5087 China Eastern Airlines 2 2026-06-26
CES239 - 2 2026-07-12
CES723 - 1 2026-06-25
CES6689 China Eastern Airlines 1 2026-06-10
CES6681 China Eastern Airlines 1 2026-06-07
CES5380 - 1 2026-06-16
CES5307 China Eastern Airlines 1 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 CES5358 SZX → SHA Jul 22, 14:55 UTCJul 22, 15:05 UTC10m
2026-07-22 CES5349 SHA → SZX Jul 22, 02:30 UTCJul 22, 13:30 UTC11h 0m
2026-07-20 CES5307 SHA → CAN Jul 20, 11:30 UTCJul 20, 11:40 UTC10m
2026-07-15 CES5358 - Jul 15, 13:55 UTCJul 15, 14:05 UTC10m
2026-07-15 CES5349 - Jul 15, 12:05 UTCJul 15, 12:45 UTC40m
2026-07-14 CES5156 - Jul 14, 05:50 UTCJul 14, 06:05 UTC15m
2026-07-13 CES5358 - Jul 13, 13:30 UTCJul 13, 13:40 UTC10m
2026-07-13 CES5349 - Jul 13, 09:55 UTCJul 13, 10:35 UTC40m
2026-07-12 CES240 - Jul 12, 13:35 UTCJul 13, 10:35 UTC21h 0m
2026-07-12 CES240 - Jul 12, 12:55 UTCJul 12, 14:10 UTC1h 15m
2026-07-12 CES239 - Jul 12, 10:25 UTCJul 12, 11:30 UTC1h 5m
2026-07-10 CES240 - Jul 10, 13:20 UTCJul 10, 14:45 UTC1h 25m
2026-07-10 CES239 - Jul 10, 11:05 UTCJul 10, 11:45 UTC40m
2026-07-06 CES5566 - Jul 6, 06:05 UTCJul 6, 06:20 UTC15m
2026-07-06 CES5565 - Jul 6, 03:00 UTCJul 6, 04:05 UTC1h 5m
2026-07-05 CES5566 - Jul 5, 04:50 UTCJul 5, 05:00 UTC10m
2026-07-05 CES5565 - Jul 5, 02:15 UTCJul 5, 02:40 UTC25m
2026-07-04 CES5566 - Jul 4, 05:40 UTCJul 4, 05:55 UTC15m
2026-07-04 CES5565 - Jul 4, 01:40 UTCJul 4, 02:50 UTC1h 10m
2026-07-03 CES5566 - Jul 3, 04:50 UTCJul 3, 05:05 UTC15m
2026-07-03 CES5565 - Jul 3, 02:35 UTCJul 3, 02:50 UTC15m
2026-07-02 CES5566 - Jul 2, 04:35 UTCJul 2, 04:45 UTC10m
2026-07-02 CES5565 - Jul 2, 01:50 UTCJul 2, 02:35 UTC45m
2026-06-30 CES272 - Jun 30, 07:15 UTCJun 30, 09:05 UTC1h 50m
2026-06-29 CES271 - Jun 29, 04:55 UTCJun 29, 11:35 UTC6h 40m
2026-06-28 CES529 - Jun 28, 14:45 UTCJun 29, 03:29 UTC12h 45m
2026-06-28 CES5034 ICN → HKG Jun 28, 07:29 UTCJun 28, 13:14 UTC5h 45m
2026-06-28 CES5033 - Jun 28, 05:34 UTCJun 28, 06:10 UTC35m
2026-06-26 CES5100 PEK → PVG Jun 26, 23:15 UTCJun 26, 23:30 UTC15m
2026-06-26 CES5088 - Jun 26, 09:30 UTCJun 26, 09:55 UTC25m
2026-06-26 CES5087 PVG → FUK Jun 26, 07:05 UTCJun 26, 07:20 UTC15m
2026-06-26 CES724 - Jun 26, 02:14 UTCJun 26, 03:29 UTC1h 15m
2026-06-25 CES7365 HKG → HKG Jun 25, 14:29 UTCJun 26, 00:45 UTC10h 15m
2026-06-25 CES723 - Jun 25, 07:30 UTCJun 25, 12:40 UTC5h 10m
2026-06-25 CES5011 - Jun 25, 05:15 UTCJun 25, 05:55 UTC40m
2026-06-24 CES5011 - Jun 24, 09:39 UTCJun 25, 05:55 UTC20h 15m
2026-06-24 CES5011 - Jun 24, 09:24 UTCJun 25, 05:55 UTC20h 30m
2026-06-24 CES5087 PVG → FUK Jun 24, 07:20 UTCJun 24, 07:34 UTC15m
2026-06-24 CES724 - Jun 24, 02:40 UTCJun 24, 04:00 UTC1h 20m
2026-06-23 CES7365 - Jun 23, 09:09 UTCJun 24, 00:59 UTC15h 50m
2026-06-23 CES2007 - Jun 23, 05:49 UTCJun 23, 07:15 UTC1h 25m
2026-06-21 CES280 - Jun 21, 04:39 UTCJun 21, 06:55 UTC2h 15m
2026-06-21 CES279 - Jun 21, 01:05 UTCJun 21, 03:14 UTC2h 10m
2026-06-20 CES5054 - Jun 20, 03:04 UTCJun 21, 01:30 UTC22h 25m
2026-06-20 CES5053 - Jun 20, 01:19 UTCJun 20, 01:44 UTC25m
2026-06-19 CES502 - Jun 19, 05:05 UTCJun 19, 06:24 UTC1h 20m
2026-06-19 CES501 - Jun 19, 02:04 UTCJun 19, 03:29 UTC1h 25m
2026-06-16 CES5380 - Jun 16, 11:30 UTCJun 17, 05:15 UTC17h 46m
2026-06-16 CES5379 - Jun 16, 06:15 UTCJun 17, 05:15 UTC23h 1m
2026-06-15 CES5379 - Jun 15, 11:45 UTCJun 16, 11:30 UTC23h 45m

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.

Mode-S 7823FE frequently asked

What is Mode-S code 7823FE?
7823FE is an ICAO 24-bit transponder address. Allocated to China.
Where is Mode-S 7823FE registered?
Mode-S code 7823FE is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7823FE broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7823FE, octal 36021776, decimal 7,873,534.
What flights does 7823FE operate?
Mode-S 7823FE has broadcast 20 distinct callsigns, including CES6279, CES6280, CES5379, CES5566, CES5565.