Apparatus

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sensors Mode-S transponder

7821E0

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32KF · AIRBUS A-321neo

Hex
7821E0
Octal
36020740
Decimal
7,872,992
Country
CN
Tail
B-32KF
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
71
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7821E0.

Country allocation

The ICAO 24-bit address 7821E0 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
CES282 China Eastern Airlines 8 2026-05-19
CES5352 China Eastern Airlines 4 2026-05-25
CES9852 China Eastern Airlines 3 2026-05-05
CES9851 China Eastern Airlines 3 2026-05-05
CES5379 China Eastern Airlines 3 2026-05-15
CES5359 China Eastern Airlines 3 2026-04-26
CES5343 China Eastern Airlines 3 2026-05-25
CES529 China Eastern Airlines 3 2026-05-22
CES501 China Eastern Airlines 3 2026-05-28
CES272 China Eastern Airlines 3 2026-05-23
CES271 China Eastern Airlines 3 2026-05-22
CES724 China Eastern Airlines 2 2026-05-29
CES723 China Eastern Airlines 2 2026-05-28
CES566 China Eastern Airlines 2 2026-05-17
CES565 China Eastern Airlines 2 2026-05-17
CES530 China Eastern Airlines 2 2026-05-30
CES502 China Eastern Airlines 2 2026-05-28
CES280 China Eastern Airlines 2 2026-05-24
CES279 China Eastern Airlines 2 2026-05-24
CES7303 China Eastern Airlines 1 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CES530 NGO → PVG May 30, 04:45 UTCMay 30, 05:45 UTC1h 0m
2026-05-29 CES212 MNL → PVG May 29, 18:25 UTCMay 30, 03:15 UTC8h 50m
2026-05-29 CES211 PVG → MNL May 29, 14:30 UTCMay 29, 16:50 UTC2h 20m
2026-05-29 CES5088 FUK → PVG May 29, 09:45 UTCMay 29, 09:55 UTC10m
2026-05-29 CES724 HKG → PVG May 29, 02:10 UTCMay 29, 03:25 UTC1h 15m
2026-05-28 CES723 PVG → HKG May 28, 12:45 UTCMay 28, 13:00 UTC15m
2026-05-28 CES502 HKG → PVG May 28, 05:00 UTCMay 28, 06:15 UTC1h 15m
2026-05-28 CES501 PVG → HKG May 28, 03:05 UTCMay 28, 03:20 UTC15m
2026-05-28 CES501 PVG → HKG May 28, 02:05 UTCMay 28, 02:35 UTC30m
2026-05-25 CES5352 SZX → PVG May 25, 12:15 UTCMay 25, 12:30 UTC15m
2026-05-25 CES5343 PVG → SZX May 25, 08:55 UTCMay 25, 09:15 UTC20m
2026-05-24 CES280 CTS → PVG May 24, 04:55 UTCMay 24, 07:05 UTC2h 10m
2026-05-24 CES279 PVG → CTS May 24, 01:25 UTCMay 24, 03:15 UTC1h 50m
2026-05-23 CES5352 SZX → PVG May 23, 12:00 UTCMay 23, 12:10 UTC10m
2026-05-23 CES5343 PVG → SZX May 23, 10:10 UTCMay 23, 10:30 UTC20m
2026-05-23 CES272 NRT → PVG May 23, 02:10 UTCMay 23, 03:40 UTC1h 29m
2026-05-22 CES271 PVG → NRT May 22, 04:45 UTCMay 22, 11:45 UTC7h 0m
2026-05-22 CES529 PVG → NGO May 22, 02:30 UTCMay 22, 03:20 UTC50m
2026-05-21 CES724 HKG → PVG May 21, 02:20 UTCMay 21, 03:25 UTC1h 5m
2026-05-20 CES723 PVG → HKG May 20, 06:10 UTCMay 20, 12:40 UTC6h 30m
2026-05-20 CES502 HKG → PVG May 20, 05:15 UTCMay 20, 05:30 UTC15m
2026-05-20 CES501 PVG → HKG May 20, 03:35 UTCMay 20, 03:50 UTC15m
2026-05-19 CES282 SGN → PVG May 19, 16:05 UTCMay 20, 03:05 UTC11h 0m
2026-05-19 CES282 SGN → PVG May 19, 05:15 UTCMay 20, 03:05 UTC21h 50m
2026-05-17 CES566 SIN → PVG May 17, 15:31 UTCMay 17, 19:40 UTC4h 10m
2026-05-17 CES565 PVG → SIN May 17, 02:55 UTCMay 17, 08:30 UTC5h 35m
2026-05-16 CES530 NGO → PVG May 16, 05:10 UTCMay 16, 06:06 UTC56m
2026-05-15 CES529 PVG → NGO May 15, 10:45 UTCMay 16, 03:55 UTC17h 9m
2026-05-15 CES529 PVG → NGO May 15, 06:05 UTCMay 16, 03:55 UTC21h 49m
2026-05-15 CES5379 PVG → SYX May 15, 05:55 UTCMay 16, 03:55 UTC21h 59m
2026-05-14 CES5054 TAE → PVG May 14, 03:15 UTCMay 14, 03:40 UTC25m
2026-05-14 CES5053 PVG → TAE May 14, 01:55 UTCMay 14, 02:05 UTC10m
2026-05-13 CES280 CTS → PVG May 13, 05:55 UTCMay 13, 07:55 UTC2h 0m
2026-05-13 CES279 PVG → CTS May 13, 02:30 UTCMay 13, 04:40 UTC2h 10m
2026-05-12 CES272 NRT → PVG May 12, 02:45 UTCMay 12, 03:45 UTC1h 0m
2026-05-11 CES271 PVG → NRT May 11, 04:45 UTCMay 11, 11:35 UTC6h 50m
2026-05-10 CES566 SIN → PVG May 10, 15:45 UTCMay 11, 03:15 UTC11h 30m
2026-05-10 CES565 PVG → SIN May 10, 03:14 UTCMay 10, 11:30 UTC8h 15m
2026-05-09 CES5352 SZX → PVG May 9, 12:15 UTCMay 9, 12:35 UTC20m
2026-05-09 CES5352 SZX → PVG May 9, 11:30 UTCMay 9, 11:45 UTC15m
2026-05-09 CES5343 PVG → SZX May 9, 09:20 UTCMay 9, 09:30 UTC10m
2026-05-09 CES272 NRT → PVG May 9, 02:15 UTCMay 9, 03:55 UTC1h 40m
2026-05-08 CES271 PVG → NRT May 8, 04:44 UTCMay 8, 11:25 UTC6h 40m
2026-05-07 CES282 SGN → PVG May 7, 08:55 UTCMay 8, 03:14 UTC18h 19m
2026-05-07 CES2007 PVG → MFM May 7, 05:45 UTCMay 7, 07:10 UTC1h 25m
2026-05-05 CES9852 URC → PKX May 5, 14:55 UTCMay 5, 15:10 UTC15m
2026-05-05 CES9851 PKX → URC May 5, 06:50 UTCMay 5, 07:15 UTC25m
2026-05-03 CES7303 PVG → LED May 3, 17:20 UTCMay 3, 23:35 UTC6h 15m
2026-04-30 CES5332 SZX → PVG Apr 30, 23:35 UTCApr 30, 23:45 UTC10m
2026-04-30 CES5357 SHA → SZX Apr 30, 14:35 UTCApr 30, 14:55 UTC20m

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-32KF page for operator, model, and routing details .

Mode-S 7821E0 frequently asked

What is Mode-S code 7821E0?
7821E0 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32KF.
Where is Mode-S 7821E0 registered?
Mode-S code 7821E0 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7821E0 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7821E0, octal 36020740, decimal 7,872,992.
What flights does 7821E0 operate?
Mode-S 7821E0 has broadcast 20 distinct callsigns, including CES282, CES5352, CES9852, CES9851, CES5379.