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 1d ago
Flights observed
75
Distinct callsigns
20
Country
CN
Last broadcast
1d 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 - 7 2026-07-01
CES873 - 7 2026-07-01
CES5022 - 5 2026-06-13
CES2069 - 5 2026-07-11
CES5021 - 4 2026-06-13
CES2070 - 4 2026-07-11
CES2130 - 3 2026-06-30
CES203 - 3 2026-06-22
CES6676 - 2 2026-07-13
CES6421 China Eastern Airlines 2 2026-05-17
CES5016 China Eastern Airlines 2 2026-05-15
CES5015 China Eastern Airlines 2 2026-05-15
CES2141 China Eastern Airlines 2 2026-05-02
CES2111 - 2 2026-07-10
CES204 - 2 2026-06-22
CES796 China Eastern Airlines 1 2026-05-04
CES795 China Eastern Airlines 1 2026-05-04
CES6422 China Eastern Airlines 1 2026-05-18
CES6312 China Eastern Airlines 1 2026-06-04
CES6307 China Eastern Airlines 1 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CES6676 - Jul 13, 13:10 UTCJul 13, 13:20 UTC10m
2026-07-13 CES5182 - Jul 13, 04:50 UTCJul 13, 05:01 UTC10m
2026-07-11 CES2070 - Jul 11, 06:40 UTCJul 11, 09:40 UTC3h 0m
2026-07-11 CES2069 - Jul 11, 01:55 UTCJul 11, 04:50 UTC2h 55m
2026-07-10 CES2111 - Jul 10, 09:40 UTCJul 10, 09:55 UTC15m
2026-07-06 CES5253 - Jul 6, 11:25 UTCJul 6, 11:35 UTC10m
2026-07-01 CES874 - Jul 1, 08:00 UTCJul 1, 11:05 UTC3h 5m
2026-07-01 CES873 - Jul 1, 03:20 UTCJul 1, 06:15 UTC2h 55m
2026-06-30 CES2130 - Jun 30, 04:20 UTCJun 30, 04:40 UTC20m
2026-06-28 CES6676 - Jun 28, 13:29 UTCJun 28, 13:40 UTC10m
2026-06-26 CES874 - Jun 26, 08:15 UTCJun 26, 11:14 UTC3h 0m
2026-06-26 CES873 - Jun 26, 03:34 UTCJun 26, 06:54 UTC3h 20m
2026-06-22 CES204 - Jun 22, 06:49 UTCJun 23, 01:04 UTC18h 15m
2026-06-22 CES203 - Jun 22, 04:40 UTCJun 22, 05:15 UTC35m
2026-06-21 CES204 - Jun 21, 06:44 UTCJun 21, 07:04 UTC20m
2026-06-21 CES203 - Jun 21, 04:39 UTCJun 21, 05:20 UTC40m
2026-06-20 CES203 - Jun 20, 09:05 UTCJun 21, 05:20 UTC20h 15m
2026-06-20 CES2070 - Jun 20, 06:35 UTCJun 21, 05:20 UTC22h 45m
2026-06-19 CES2069 - Jun 19, 09:49 UTCJun 20, 03:59 UTC18h 10m
2026-06-19 CES2069 - Jun 19, 09:14 UTCJun 20, 03:59 UTC18h 45m
2026-06-19 CES2070 - Jun 19, 06:44 UTCJun 20, 03:59 UTC21h 15m
2026-06-19 CES2069 - Jun 19, 01:15 UTCJun 19, 04:04 UTC2h 50m
2026-06-13 CES5022 - Jun 13, 05:35 UTCJun 13, 05:55 UTC20m
2026-06-13 CES5021 - Jun 13, 03:35 UTCJun 13, 04:05 UTC30m
2026-06-11 CES5022 ICN → TAO Jun 11, 05:20 UTCJun 11, 05:40 UTC20m
2026-06-11 CES5021 TAO → ICN Jun 11, 03:50 UTCJun 11, 04:10 UTC20m
2026-06-06 CES5022 ICN → TAO Jun 6, 05:25 UTCJun 6, 05:50 UTC25m
2026-06-06 CES5021 TAO → ICN Jun 6, 03:50 UTCJun 6, 04:10 UTC20m
2026-06-05 CES2130 LHW → PKX Jun 5, 04:05 UTCJun 5, 04:20 UTC15m
2026-06-04 CES6312 CAN → PKX Jun 4, 15:25 UTCJun 4, 15:40 UTC15m
2026-06-04 CES6307 PKX → CAN Jun 4, 10:40 UTCJun 4, 10:55 UTC15m
2026-06-04 CES2109 XIY → PKX Jun 4, 06:40 UTCJun 4, 07:00 UTC20m
2026-05-31 CES2140 SYX → XIY May 31, 12:00 UTCMay 31, 12:15 UTC15m
2026-05-31 CES2139 XIY → SYX May 31, 08:55 UTCMay 31, 09:35 UTC40m
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

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 1d 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, CES5022, CES2069, CES5021.