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 Jul 26, 01:05 UTC
Flights observed
91
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 01:05 UTC

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 - 7 2026-06-29
CES726 China Eastern Airlines 4 2026-06-29
CES6050 - 4 2026-06-30
CES6049 - 4 2026-06-30
CES5023 - 4 2026-06-23
CES760 - 3 2026-07-13
CES759 China Eastern Airlines 3 2026-06-04
CES501 China Eastern Airlines 3 2026-05-14
CES294 China Eastern Airlines 3 2026-05-25
CES293 China Eastern Airlines 3 2026-05-25
CES9992 China Eastern Airlines 2 2026-07-19
CES9991 China Eastern Airlines 2 2026-07-18
CES7425 - 2 2026-07-16
CES6903 China Eastern Airlines 2 2026-04-30
CES6664 - 2 2026-07-14
CES6482 - 2 2026-07-20
CES5067 China Eastern Airlines 2 2026-07-20
CES5062 - 2 2026-07-17
CES5061 - 2 2026-07-16
CES284 - 2 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CES6350 DSN → PVG Jul 26, 00:40 UTCJul 26, 01:05 UTC25m
2026-07-23 CES5240 CAN → NGB Jul 23, 13:40 UTCJul 23, 13:50 UTC10m
2026-07-23 CES5239 NGB → CAN Jul 23, 04:55 UTCJul 23, 10:20 UTC5h 25m
2026-07-23 CES6327 - Jul 23, 01:35 UTCJul 23, 01:50 UTC15m
2026-07-21 CES5068 BKK → TYN Jul 21, 08:15 UTCJul 21, 08:35 UTC20m
2026-07-20 CES5067 TYN → BKK Jul 20, 11:50 UTCJul 21, 06:50 UTC18h 59m
2026-07-20 CES6482 - Jul 20, 11:25 UTCJul 21, 06:50 UTC19h 24m
2026-07-19 CES6482 - Jul 19, 15:50 UTCJul 20, 12:05 UTC20h 15m
2026-07-19 CES9992 MFM → PVG Jul 19, 14:45 UTCJul 20, 11:40 UTC20h 55m
2026-07-18 CES9991 PVG → MFM Jul 18, 19:05 UTCJul 19, 13:25 UTC18h 20m
2026-07-17 CES5062 - Jul 17, 06:20 UTCJul 17, 06:54 UTC35m
2026-07-16 CES5061 - Jul 16, 20:45 UTCJul 17, 04:35 UTC7h 50m
2026-07-16 CES7425 - Jul 16, 18:40 UTCJul 16, 18:50 UTC10m
2026-07-16 CES7425 - Jul 16, 16:44 UTCJul 16, 16:55 UTC10m
2026-07-14 CES6664 - Jul 14, 15:35 UTCJul 14, 16:20 UTC45m
2026-07-13 CES6664 - Jul 13, 20:20 UTCJul 14, 16:20 UTC20h 0m
2026-07-13 CES760 - Jul 13, 19:45 UTCJul 14, 16:20 UTC20h 35m
2026-07-13 CES7404 - Jul 13, 06:35 UTCJul 13, 21:00 UTC14h 25m
2026-07-12 CES7403 - Jul 12, 14:40 UTCJul 13, 05:15 UTC14h 35m
2026-07-10 CES5604 - Jul 10, 23:20 UTCJul 11, 07:55 UTC8h 35m
2026-07-10 CES5165 - Jul 10, 17:05 UTCJul 10, 17:20 UTC15m
2026-07-09 CES6278 - Jul 9, 15:50 UTCJul 10, 10:50 UTC19h 0m
2026-07-08 CES284 - Jul 8, 18:45 UTCJul 9, 15:55 UTC21h 10m
2026-07-08 CES284 - Jul 8, 15:50 UTCJul 9, 15:45 UTC23h 55m
2026-07-07 CES770 - Jul 7, 08:25 UTCJul 7, 11:50 UTC3h 25m
2026-07-07 CES769 - Jul 7, 02:40 UTCJul 7, 05:55 UTC3h 15m
2026-07-01 CES760 - Jul 1, 14:40 UTCJul 1, 20:25 UTC5h 45m
2026-06-30 CES6050 - Jun 30, 10:50 UTCJun 30, 15:00 UTC4h 10m
2026-06-30 CES6049 - Jun 30, 08:20 UTCJun 30, 08:50 UTC30m
2026-06-29 CES726 HKG → PVG Jun 29, 23:44 UTCJun 30, 04:45 UTC5h 1m
2026-06-29 CES725 - Jun 29, 15:09 UTCJun 29, 15:39 UTC30m
2026-06-29 CES725 - Jun 29, 14:04 UTCJun 29, 14:25 UTC20m
2026-06-28 CES5608 - Jun 28, 12:15 UTCJun 28, 13:00 UTC45m
2026-06-26 CES7368 - Jun 26, 17:29 UTCJun 26, 18:54 UTC1h 25m
2026-06-26 CES7367 - Jun 26, 14:39 UTCJun 26, 16:00 UTC1h 20m
2026-06-23 CES5023 - Jun 23, 13:55 UTCJun 23, 21:24 UTC7h 30m
2026-06-22 CES5023 - Jun 22, 23:50 UTCJun 23, 21:24 UTC21h 35m
2026-06-22 CES5023 - Jun 22, 23:20 UTCJun 23, 21:24 UTC22h 5m
2026-06-21 CES9992 - Jun 21, 13:54 UTCJun 21, 15:19 UTC1h 25m
2026-06-21 CES9991 - Jun 21, 10:34 UTCJun 21, 11:55 UTC1h 20m
2026-06-18 CES726 HKG → PVG Jun 18, 23:45 UTCJun 19, 00:59 UTC1h 14m
2026-06-18 CES725 - Jun 18, 14:05 UTCJun 18, 15:35 UTC1h 30m
2026-06-12 CES5016 HKG → PKX Jun 12, 06:05 UTCJun 12, 06:20 UTC15m
2026-06-12 CES5015 PKX → HKG Jun 12, 03:10 UTCJun 12, 03:50 UTC40m
2026-06-11 CES5148 HGH → PKX Jun 11, 10:00 UTCJun 11, 10:10 UTC10m
2026-06-07 CES5100 PEK → PVG Jun 7, 23:15 UTCJun 8, 14:25 UTC15h 10m
2026-06-07 CES5053 PVG → TAE Jun 7, 01:30 UTCJun 7, 01:40 UTC10m
2026-06-06 CES5373 TYN → WUH Jun 6, 02:45 UTCJun 6, 07:35 UTC4h 50m
2026-06-05 CES5154 PEK → SHA Jun 5, 04:15 UTCJun 5, 04:25 UTC10m
2026-06-04 CES759 PVG → PNH Jun 4, 14:45 UTCJun 4, 20:35 UTC5h 50m

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 Jul 26, 01:05 UTC.
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, CES726, CES6050, CES6049, CES5023.