Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781C4F

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-325S · AIRBUS A-320neo

Hex
781C4F
Octal
36016117
Decimal
7,871,567
Country
CN
Tail
B-325S
Type
A20N
No current signal · last broadcast 2d ago
Flights observed
41
Distinct callsigns
20
Country
CN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 781C4F.

Country allocation

The ICAO 24-bit address 781C4F 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
CES725 China Eastern Airlines 4 2026-05-21
CES6050 China Eastern Airlines 3 2026-05-22
CES6049 China Eastern Airlines 3 2026-04-17
CES501 China Eastern Airlines 3 2026-05-14
CES294 China Eastern Airlines 3 2026-05-25
CES293 China Eastern Airlines 3 2026-05-25
CES759 China Eastern Airlines 2 2026-05-17
CES726 China Eastern Airlines 2 2026-05-21
CES6903 China Eastern Airlines 2 2026-04-30
CES892 China Eastern Airlines 1 2026-04-21
CES760 China Eastern Airlines 1 2026-05-31
CES7304 China Eastern Airlines 1 2026-05-01
CES7303 China Eastern Airlines 1 2026-05-01
CES5620 China Eastern Airlines 1 2026-05-01
CES5290 China Eastern Airlines 1 2026-04-22
CES510 China Eastern Airlines 1 2026-05-29
CES509 China Eastern Airlines 1 2026-05-29
CES5067 China Eastern Airlines 1 2026-05-24
CES5062 China Eastern Airlines 1 2026-05-03
CES5061 China Eastern Airlines 1 2026-05-02

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
2026-05-31 CES760 PNH → PVG May 31, 13:35 UTCMay 31, 19:20 UTC5h 45m
2026-05-29 CES510 HKG → PVG May 29, 09:35 UTCMay 29, 19:15 UTC9h 40m
2026-05-29 CES509 PVG → HKG May 29, 06:20 UTCMay 29, 07:35 UTC1h 15m
2026-05-25 CES294 HIJ → PVG May 25, 05:25 UTCMay 25, 05:55 UTC30m
2026-05-25 CES293 PVG → HIJ May 25, 03:45 UTCMay 25, 04:15 UTC30m
2026-05-24 CES5067 TYN → BKK May 24, 09:40 UTCMay 24, 09:55 UTC15m
2026-05-22 CES6050 SIN → PVG May 22, 10:45 UTCMay 22, 14:45 UTC4h 0m
2026-05-21 CES726 HKG → PVG May 21, 23:55 UTCMay 22, 08:20 UTC8h 25m
2026-05-21 CES725 PVG → HKG May 21, 14:55 UTCMay 21, 15:10 UTC15m
2026-05-21 CES725 PVG → HKG May 21, 13:55 UTCMay 21, 14:25 UTC30m
2026-05-17 CES759 PVG → PNH May 17, 13:50 UTCMay 17, 19:30 UTC5h 40m
2026-05-14 CES502 HKG → PVG May 14, 05:10 UTCMay 14, 05:30 UTC20m
2026-05-14 CES501 PVG → HKG May 14, 03:10 UTCMay 14, 03:25 UTC15m
2026-05-13 CES501 PVG → HKG May 13, 13:55 UTCMay 14, 02:30 UTC12h 35m
2026-05-13 CES501 PVG → HKG May 13, 06:50 UTCMay 14, 02:30 UTC19h 40m
2026-05-05 CES5023 PVG → CEB May 5, 14:00 UTCMay 5, 21:40 UTC7h 40m
2026-05-04 CES294 HIJ → PVG May 4, 04:39 UTCMay 4, 05:15 UTC35m
2026-05-04 CES293 PVG → HIJ May 4, 02:50 UTCMay 4, 03:24 UTC35m
2026-05-03 CES5062 ICN → PVG May 3, 05:55 UTCMay 3, 06:25 UTC30m
2026-05-02 CES5061 PVG → ICN May 2, 11:50 UTCMay 3, 04:00 UTC16h 9m
2026-05-01 CES7304 LED → PVG May 1, 23:50 UTCMay 2, 23:45 UTC23h 56m
2026-05-01 CES7303 PVG → LED May 1, 23:40 UTCMay 2, 17:40 UTC18h 0m
2026-05-01 CES5620 HRB → PVG May 1, 14:55 UTCMay 2, 12:15 UTC21h 21m
2026-05-01 CES2034 ICN → TAO May 1, 04:40 UTCMay 2, 00:30 UTC19h 50m
2026-05-01 CES2033 TAO → ICN May 1, 03:05 UTCMay 1, 03:20 UTC15m
2026-04-30 CES6903 PVG → KWL Apr 30, 00:40 UTCApr 30, 15:45 UTC15h 5m
2026-04-29 CES6903 PVG → KWL Apr 29, 00:54 UTCApr 29, 01:10 UTC15m
2026-04-26 CES759 PVG → PNH Apr 26, 13:55 UTCApr 27, 06:20 UTC16h 25m
2026-04-23 CES726 HKG → PVG Apr 23, 23:55 UTCApr 24, 01:15 UTC1h 20m
2026-04-23 CES725 PVG → HKG Apr 23, 15:15 UTCApr 23, 15:40 UTC25m
2026-04-23 CES725 PVG → HKG Apr 23, 14:10 UTCApr 23, 14:30 UTC20m
2026-04-22 CES5290 ZUH → PVG Apr 22, 08:25 UTCApr 22, 08:35 UTC10m
2026-04-21 CES892 ICN → YNJ Apr 21, 07:00 UTCApr 21, 12:01 UTC5h 0m
2026-04-20 CES294 HIJ → PVG Apr 20, 04:45 UTCApr 20, 05:10 UTC25m
2026-04-20 CES293 PVG → HIJ Apr 20, 03:05 UTCApr 20, 03:25 UTC20m
2026-04-18 CES5024 CEB → PVG Apr 18, 14:00 UTCApr 18, 21:25 UTC7h 25m
2026-04-17 CES6050 SIN → PVG Apr 17, 14:20 UTCApr 17, 14:40 UTC20m
2026-04-17 CES6050 SIN → PVG Apr 17, 10:55 UTCApr 17, 11:10 UTC15m
2026-04-17 CES6049 PVG → SIN Apr 17, 07:20 UTCApr 17, 09:10 UTC1h 50m
2026-04-17 CES6049 PVG → SIN Apr 17, 05:20 UTCApr 17, 07:15 UTC1h 55m
2026-04-17 CES6049 PVG → SIN Apr 17, 04:20 UTCApr 17, 05:00 UTC41m

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-325S page for operator, model, and routing details .

Mode-S 781C4F frequently asked

What is Mode-S code 781C4F?
781C4F is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-325S.
Where is Mode-S 781C4F registered?
Mode-S code 781C4F is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781C4F broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781C4F, octal 36016117, decimal 7,871,567.
What flights does 781C4F operate?
Mode-S 781C4F has broadcast 20 distinct callsigns, including CES725, CES6050, CES6049, CES501, CES294.