Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781BA7

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-323Y · AIRBUS A-320neo

Hex
781BA7
Octal
36015647
Decimal
7,871,399
Country
CN
Tail
B-323Y
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 781BA7.

Country allocation

The ICAO 24-bit address 781BA7 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
CES874 China Eastern Airlines 5 2026-04-22
CES873 China Eastern Airlines 5 2026-04-22
CES6421 China Eastern Airlines 2 2026-05-17
CES5022 China Eastern Airlines 2 2026-05-28
CES5016 China Eastern Airlines 2 2026-05-15
CES5015 China Eastern Airlines 2 2026-05-15
CES2141 China Eastern Airlines 2 2026-05-02
CES796 China Eastern Airlines 1 2026-05-04
CES795 China Eastern Airlines 1 2026-05-04
CES6422 China Eastern Airlines 1 2026-05-18
CES6270 China Eastern Airlines 1 2026-05-05
CES6262 China Eastern Airlines 1 2026-05-06
CES6160 China Eastern Airlines 1 2026-05-09
CES6078 China Eastern Airlines 1 2026-05-26
CES6077 China Eastern Airlines 1 2026-05-26
CES5021 China Eastern Airlines 1 2026-05-28
CES2342 China Eastern Airlines 1 2026-04-19
CES2332 China Eastern Airlines 1 2026-05-23
CES2331 China Eastern Airlines 1 2026-05-23
CES2245 China Eastern Airlines 1 2026-04-20

Recent flights last 41

DateFlightRouteTakeoffLandingDuration
2026-05-28 CES5022 ICN → TAO May 28, 05:25 UTCMay 28, 05:55 UTC30m
2026-05-28 CES5021 TAO → ICN May 28, 03:40 UTCMay 28, 04:10 UTC30m
2026-05-26 CES6078 SIN → NGB May 26, 09:45 UTCMay 26, 13:00 UTC3h 15m
2026-05-26 CES6077 NGB → SIN May 26, 03:55 UTCMay 26, 07:24 UTC3h 30m
2026-05-23 CES2332 PVG → TYN May 23, 08:00 UTCMay 23, 08:15 UTC15m
2026-05-23 CES2331 TYN → PVG May 23, 06:05 UTCMay 23, 06:15 UTC10m
2026-05-20 CES2070 SIN → XIY May 20, 06:25 UTCMay 20, 06:55 UTC30m
2026-05-20 CES2069 XIY → SIN May 20, 03:50 UTCMay 20, 04:35 UTC45m
2026-05-18 CES6422 SZX → HGH May 18, 12:40 UTCMay 18, 12:50 UTC10m
2026-05-17 CES6421 HGH → SZX May 17, 21:25 UTCMay 18, 10:55 UTC13h 30m
2026-05-17 CES6421 HGH → SZX May 17, 15:20 UTCMay 18, 10:55 UTC19h 35m
2026-05-17 CES2034 ICN → TAO May 17, 04:40 UTCMay 17, 05:00 UTC20m
2026-05-17 CES2033 TAO → ICN May 17, 03:10 UTCMay 17, 03:35 UTC25m
2026-05-15 CES5016 HKG → PKX May 15, 07:25 UTCMay 15, 07:40 UTC15m
2026-05-15 CES5015 PKX → HKG May 15, 03:10 UTCMay 15, 03:45 UTC35m
2026-05-13 CES5016 HKG → PKX May 13, 05:45 UTCMay 13, 06:05 UTC20m
2026-05-13 CES5015 PKX → HKG May 13, 03:20 UTCMay 13, 03:55 UTC35m
2026-05-09 CES6160 SZX → XIY May 9, 00:00 UTCMay 9, 00:15 UTC15m
2026-05-06 CES6262 CAN → XIY May 6, 15:10 UTCMay 6, 15:25 UTC15m
2026-05-05 CES2072 BKK → PKX May 5, 19:35 UTCMay 5, 21:35 UTC2h 0m
2026-05-05 CES2071 PKX → BKK May 5, 17:05 UTCMay 5, 17:35 UTC30m
2026-05-05 CES6270 PKX → XMN May 5, 11:00 UTCMay 5, 11:15 UTC15m
2026-05-04 CES796 KUL → PKX May 4, 17:55 UTCMay 4, 18:10 UTC15m
2026-05-04 CES795 PKX → KUL May 4, 12:55 UTCMay 4, 16:25 UTC3h 30m
2026-05-03 CES2111 XIY → PKX May 3, 07:25 UTCMay 3, 07:40 UTC15m
2026-05-02 CES2141 XIY → CGQ May 2, 02:00 UTCMay 2, 02:10 UTC10m
2026-04-27 CES2130 LHW → PKX Apr 27, 04:10 UTCApr 27, 04:25 UTC15m
2026-04-24 CES2141 XIY → CGQ Apr 24, 02:00 UTCApr 24, 16:05 UTC14h 5m
2026-04-22 CES874 KUL → KMG Apr 22, 07:55 UTCApr 22, 08:10 UTC15m
2026-04-22 CES873 KMG → KUL Apr 22, 06:10 UTCApr 22, 06:35 UTC25m
2026-04-21 CES874 KUL → KMG Apr 21, 08:10 UTCApr 21, 08:20 UTC10m
2026-04-21 CES873 KMG → KUL Apr 21, 06:25 UTCApr 21, 06:45 UTC20m
2026-04-20 CES2245 XIY → HRB Apr 20, 06:05 UTCApr 20, 10:40 UTC4h 35m
2026-04-19 CES2342 ZUH → XIY Apr 19, 01:20 UTCApr 19, 01:35 UTC15m
2026-04-16 CES874 KUL → KMG Apr 16, 07:54 UTCApr 16, 08:09 UTC15m
2026-04-16 CES873 KMG → KUL Apr 16, 06:05 UTCApr 16, 06:29 UTC25m
2026-04-15 CES874 KUL → KMG Apr 15, 07:55 UTCApr 15, 08:10 UTC15m
2026-04-15 CES873 KMG → KUL Apr 15, 06:05 UTCApr 15, 06:35 UTC30m
2026-04-14 CES5022 ICN → TAO Apr 14, 05:30 UTCApr 14, 05:40 UTC10m
2026-04-13 CES874 - Apr 13, 08:10 UTCApr 13, 08:25 UTC15m
2026-04-13 CES873 KMG → KUL Apr 13, 06:20 UTCApr 13, 06:35 UTC15m

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-323Y page for operator, model, and routing details .

Mode-S 781BA7 frequently asked

What is Mode-S code 781BA7?
781BA7 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-323Y.
Where is Mode-S 781BA7 registered?
Mode-S code 781BA7 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781BA7 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 781BA7, octal 36015647, decimal 7,871,399.
What flights does 781BA7 operate?
Mode-S 781BA7 has broadcast 20 distinct callsigns, including CES874, CES873, CES6421, CES5022, CES5016.