Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7821DF

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32KE · AIRBUS A-320neo

Hex
7821DF
Octal
36020737
Decimal
7,872,991
Country
CN
Tail
B-32KE
Type
A20N
No current signal · last broadcast 8d ago
Flights observed
71
Distinct callsigns
20
Country
CN
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 7821DF.

Country allocation

The ICAO 24-bit address 7821DF 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
CES892 - 7 2026-06-20
CES891 - 6 2026-06-20
CES2040 China Eastern Airlines 5 2026-06-09
CES2039 China Eastern Airlines 5 2026-06-09
CES509 China Eastern Airlines 4 2026-04-25
CES5614 - 3 2026-07-02
CES5325 China Eastern Airlines 3 2026-05-06
CES2034 China Eastern Airlines 3 2026-06-08
CES2033 China Eastern Airlines 3 2026-06-08
CES2018 China Eastern Airlines 3 2026-05-28
CES2017 China Eastern Airlines 3 2026-05-28
CES6327 China Eastern Airlines 2 2026-04-27
CES6292 - 2 2026-07-05
CES5652 China Eastern Airlines 2 2026-04-18
CES5391 China Eastern Airlines 2 2026-04-30
CES6491 China Eastern Airlines 1 2026-06-04
CES6356 China Eastern Airlines 1 2026-06-14
CES6355 China Eastern Airlines 1 2026-06-03
CES6328 China Eastern Airlines 1 2026-04-27
CES6326 - 1 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-05 CES6292 - Jul 5, 12:10 UTCJul 5, 12:45 UTC35m
2026-07-02 CES5100 PEK → PVG Jul 2, 23:25 UTCJul 2, 23:35 UTC10m
2026-07-02 CES5614 - Jul 2, 10:20 UTCJul 2, 11:05 UTC45m
2026-06-24 CES5164 - Jun 24, 11:50 UTCJun 25, 07:34 UTC19h 45m
2026-06-22 CES6326 - Jun 22, 22:44 UTCJun 22, 23:14 UTC30m
2026-06-20 CES892 - Jun 20, 06:49 UTCJun 20, 11:44 UTC4h 55m
2026-06-20 CES891 - Jun 20, 05:09 UTCJun 20, 05:29 UTC20m
2026-06-19 CES6292 - Jun 19, 11:54 UTCJun 20, 00:44 UTC12h 50m
2026-06-19 CES5054 - Jun 19, 03:05 UTCJun 20, 00:44 UTC21h 40m
2026-06-19 CES5053 - Jun 19, 01:15 UTCJun 19, 01:39 UTC25m
2026-06-17 CES5602 - Jun 17, 23:30 UTCJun 18, 10:00 UTC10h 30m
2026-06-14 CES6356 CGQ → SHA Jun 14, 12:30 UTCJun 14, 12:50 UTC20m
2026-06-09 CES2040 ICN → TAO Jun 9, 03:10 UTCJun 9, 03:35 UTC25m
2026-06-09 CES2039 TAO → ICN Jun 9, 01:15 UTCJun 9, 01:35 UTC20m
2026-06-08 CES2034 ICN → TAO Jun 8, 04:30 UTCJun 8, 04:55 UTC25m
2026-06-08 CES2033 TAO → ICN Jun 8, 02:40 UTCJun 8, 03:00 UTC20m
2026-06-07 CES2040 ICN → TAO Jun 7, 03:10 UTCJun 7, 03:30 UTC20m
2026-06-07 CES2039 TAO → ICN Jun 7, 01:20 UTCJun 7, 01:45 UTC25m
2026-06-06 CES2040 ICN → TAO Jun 6, 03:20 UTCJun 6, 03:40 UTC20m
2026-06-06 CES2039 TAO → ICN Jun 6, 01:20 UTCJun 6, 01:40 UTC20m
2026-06-05 CES2040 ICN → TAO Jun 5, 03:20 UTCJun 5, 03:45 UTC25m
2026-06-05 CES2039 TAO → ICN Jun 5, 01:30 UTCJun 5, 01:45 UTC15m
2026-06-04 CES6491 TAO → HET Jun 4, 09:05 UTCJun 4, 09:40 UTC35m
2026-06-03 CES6355 SHA → CGQ Jun 3, 09:55 UTCJun 3, 13:00 UTC3h 5m
2026-06-03 CES2034 ICN → TAO Jun 3, 04:45 UTCJun 3, 05:00 UTC15m
2026-06-03 CES2033 TAO → ICN Jun 3, 02:35 UTCJun 3, 02:55 UTC20m
2026-06-02 CES2034 ICN → TAO Jun 2, 04:55 UTCJun 2, 05:15 UTC20m
2026-06-02 CES2033 TAO → ICN Jun 2, 03:00 UTCJun 2, 03:30 UTC30m
2026-06-01 CES2040 ICN → TAO Jun 1, 03:35 UTCJun 1, 03:50 UTC15m
2026-06-01 CES2039 TAO → ICN Jun 1, 01:15 UTCJun 1, 01:35 UTC20m
2026-05-29 CES5666 - May 29, 06:30 UTCMay 29, 06:40 UTC10m
2026-05-28 CES2018 ICN → WEH May 28, 05:25 UTCMay 28, 05:40 UTC15m
2026-05-28 CES2017 WEH → ICN May 28, 03:50 UTCMay 28, 04:15 UTC25m
2026-05-22 CES2018 ICN → WEH May 22, 05:45 UTCMay 22, 06:00 UTC15m
2026-05-22 CES2017 WEH → ICN May 22, 03:45 UTCMay 22, 04:05 UTC20m
2026-05-18 CES2018 ICN → WEH May 18, 05:15 UTCMay 18, 05:30 UTC15m
2026-05-18 CES2017 WEH → ICN May 18, 03:30 UTCMay 18, 03:50 UTC20m
2026-05-15 CES5549 PVG → HAK May 15, 08:50 UTCMay 15, 12:00 UTC3h 10m
2026-05-13 CES892 ICN → YNJ May 13, 06:50 UTCMay 13, 11:30 UTC4h 40m
2026-05-12 CES891 YNJ → ICN May 12, 11:10 UTCMay 13, 05:25 UTC18h 15m
2026-05-07 CES6311 PKX → CAN May 7, 14:10 UTCMay 7, 14:25 UTC15m
2026-05-06 CES5325 SHA → SZX May 6, 16:25 UTCMay 6, 16:45 UTC20m
2026-05-06 CES5158 PEK → PVG May 6, 06:45 UTCMay 6, 07:01 UTC15m
2026-05-05 CES892 ICN → YNJ May 5, 06:45 UTCMay 5, 11:30 UTC4h 45m
2026-05-04 CES5608 SHE → PVG May 4, 10:55 UTCMay 5, 00:50 UTC13h 56m
2026-05-03 CES5614 HRB → PVG May 3, 10:35 UTCMay 3, 11:05 UTC30m
2026-05-01 CES5245 PVG → XMN May 1, 12:40 UTCMay 2, 04:55 UTC16h 15m
2026-04-30 CES5392 SZX → PKX Apr 30, 08:00 UTCApr 30, 08:10 UTC10m
2026-04-30 CES5391 PKX → SZX Apr 30, 06:20 UTCApr 30, 06:30 UTC10m
2026-04-30 CES5391 PKX → SZX Apr 30, 05:05 UTCApr 30, 05:30 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-32KE page for operator, model, and routing details .

Mode-S 7821DF frequently asked

What is Mode-S code 7821DF?
7821DF is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32KE.
Where is Mode-S 7821DF registered?
Mode-S code 7821DF is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7821DF broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7821DF, octal 36020737, decimal 7,872,991.
What flights does 7821DF operate?
Mode-S 7821DF has broadcast 20 distinct callsigns, including CES892, CES891, CES2040, CES2039, CES509.