Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781BA9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-324A · AIRBUS A-320neo

Hex
781BA9
Octal
36015651
Decimal
7,871,401
Country
CN
Tail
B-324A
Type
A20N
No current signal · last broadcast 18h ago
Flights observed
75
Distinct callsigns
20
Country
CN
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 781BA9.

Country allocation

The ICAO 24-bit address 781BA9 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
CES6050 - 6 2026-06-26
CES6049 - 5 2026-06-25
CES284 - 3 2026-06-24
CES204 - 3 2026-07-01
CES203 - 3 2026-07-01
CES892 - 2 2026-06-16
CES891 - 2 2026-06-16
CES725 - 2 2026-06-25
CES6400 - 2 2026-06-15
CES6350 - 2 2026-07-02
CES510 - 2 2026-06-24
CES509 - 2 2026-06-24
CES2342 China Eastern Airlines 2 2026-05-01
CES2341 - 2 2026-07-06
CES2236 China Eastern Airlines 2 2026-06-10
CES874 China Eastern Airlines 1 2026-04-29
CES873 China Eastern Airlines 1 2026-04-29
CES862 China Eastern Airlines 1 2026-07-03
CES861 China Eastern Airlines 1 2026-07-03
CES6866 - 1 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CES6638 SZX → XIY Jul 17, 13:45 UTCJul 17, 14:00 UTC15m
2026-07-17 CES6637 - Jul 17, 11:55 UTCJul 17, 12:04 UTC10m
2026-07-16 CES6866 - Jul 16, 14:45 UTCJul 16, 14:55 UTC10m
2026-07-16 CES6865 - Jul 16, 06:50 UTCJul 16, 07:00 UTC10m
2026-07-15 CES5182 - Jul 15, 05:30 UTCJul 15, 05:45 UTC15m
2026-07-14 CES5253 - Jul 14, 10:25 UTCJul 14, 10:50 UTC25m
2026-07-12 CES2416 - Jul 12, 11:20 UTCJul 12, 11:30 UTC10m
2026-07-12 CES2415 - Jul 12, 08:50 UTCJul 12, 09:05 UTC15m
2026-07-10 CES2443 - Jul 10, 09:20 UTCJul 10, 09:30 UTC10m
2026-07-10 CES2428 - Jul 10, 04:50 UTCJul 10, 05:00 UTC10m
2026-07-10 CES2427 - Jul 10, 01:40 UTCJul 10, 01:55 UTC15m
2026-07-06 CES2341 - Jul 6, 16:45 UTCJul 6, 17:05 UTC20m
2026-07-03 CES862 PQC → XIY Jul 3, 18:50 UTCJul 4, 08:05 UTC13h 15m
2026-07-03 CES861 XIY → PQC Jul 3, 11:15 UTCJul 4, 08:05 UTC20h 50m
2026-07-02 CES6350 - Jul 2, 00:50 UTCJul 2, 01:10 UTC20m
2026-07-01 CES204 - Jul 1, 06:35 UTCJul 1, 06:55 UTC20m
2026-07-01 CES203 - Jul 1, 04:40 UTCJul 1, 05:10 UTC30m
2026-06-28 CES5062 - Jun 28, 05:45 UTCJun 28, 06:05 UTC20m
2026-06-28 CES5061 - Jun 28, 03:29 UTCJun 28, 04:10 UTC40m
2026-06-26 CES6050 - Jun 26, 11:00 UTCJun 26, 15:15 UTC4h 15m
2026-06-25 CES6049 - Jun 25, 23:49 UTCJun 26, 08:34 UTC8h 45m
2026-06-25 CES725 - Jun 25, 15:10 UTCJun 25, 15:24 UTC15m
2026-06-25 CES725 - Jun 25, 13:59 UTCJun 25, 14:34 UTC35m
2026-06-24 CES284 - Jun 24, 18:25 UTCJun 25, 14:34 UTC20h 10m
2026-06-24 CES284 - Jun 24, 16:19 UTCJun 25, 14:34 UTC22h 15m
2026-06-24 CES284 - Jun 24, 15:39 UTCJun 25, 14:14 UTC22h 35m
2026-06-24 CES510 - Jun 24, 09:29 UTCJun 24, 19:10 UTC9h 40m
2026-06-24 CES509 - Jun 24, 00:49 UTCJun 24, 07:20 UTC6h 30m
2026-06-22 CES6140 - Jun 22, 09:14 UTCJun 22, 09:30 UTC15m
2026-06-22 CES6139 - Jun 22, 07:04 UTCJun 22, 07:14 UTC10m
2026-06-20 CES6399 - Jun 20, 05:24 UTCJun 20, 12:45 UTC7h 20m
2026-06-19 CES6050 - Jun 19, 14:29 UTCJun 20, 12:45 UTC22h 15m
2026-06-19 CES6050 - Jun 19, 13:59 UTCJun 20, 09:54 UTC19h 55m
2026-06-19 CES6050 - Jun 19, 10:50 UTCJun 20, 09:54 UTC23h 5m
2026-06-19 CES6049 - Jun 19, 04:29 UTCJun 19, 08:20 UTC3h 50m
2026-06-18 CES5641 - Jun 18, 15:00 UTCJun 18, 15:30 UTC30m
2026-06-16 CES5652 - Jun 16, 11:00 UTCJun 16, 11:45 UTC45m
2026-06-16 CES892 - Jun 16, 06:45 UTCJun 16, 07:05 UTC20m
2026-06-16 CES891 - Jun 16, 05:10 UTCJun 16, 05:25 UTC15m
2026-06-15 CES6400 - Jun 15, 13:20 UTCJun 16, 04:35 UTC15h 15m
2026-06-15 CES6400 - Jun 15, 10:00 UTCJun 16, 04:35 UTC18h 35m
2026-06-13 CES6294 - Jun 13, 03:25 UTCJun 13, 12:20 UTC8h 54m
2026-06-13 CES5053 - Jun 13, 01:20 UTCJun 13, 01:40 UTC20m
2026-06-10 CES2236 KHN → XIY Jun 10, 10:55 UTCJun 10, 11:05 UTC10m
2026-06-09 CES2236 KHN → XIY Jun 9, 10:50 UTCJun 9, 11:00 UTC10m
2026-06-05 CES283 PVG → VTE Jun 5, 15:35 UTCJun 5, 19:00 UTC3h 25m
2026-06-04 CES6325 PVG → FOC Jun 4, 15:55 UTCJun 4, 16:25 UTC30m
2026-06-04 CES510 HKG → PVG Jun 4, 09:15 UTCJun 4, 10:45 UTC1h 30m
2026-06-03 CES509 PVG → HKG Jun 3, 14:50 UTCJun 4, 07:20 UTC16h 30m
2026-06-01 CES6050 SIN → PVG Jun 1, 11:00 UTCJun 1, 15:10 UTC4h 10m

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-324A page for operator, model, and routing details .

Mode-S 781BA9 frequently asked

What is Mode-S code 781BA9?
781BA9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-324A.
Where is Mode-S 781BA9 registered?
Mode-S code 781BA9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781BA9 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781BA9, octal 36015651, decimal 7,871,401.
What flights does 781BA9 operate?
Mode-S 781BA9 has broadcast 20 distinct callsigns, including CES6050, CES6049, CES284, CES204, CES203.