Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781087

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-8648 · AIRBUS A-321

Hex
781087
Octal
36010207
Decimal
7,868,551
Country
CN
Tail
B-8648
Type
A321
No current signal · last broadcast Jul 26, 11:30 UTC
Flights observed
86
Distinct callsigns
18
Country
CN
Last broadcast
Jul 26, 11:30 UTC

Last known position

Most recent position reported by Mode-S 781087.

Country allocation

The ICAO 24-bit address 781087 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 18 distinct

Callsign Airline Flights Last seen
CES5244 China Eastern Airlines 14 2026-07-24
CES5243 China Eastern Airlines 13 2026-07-24
CES560 China Eastern Airlines 12 2026-07-25
CES2043 - 12 2026-07-25
CES559 China Eastern Airlines 10 2026-07-25
CES2044 China Eastern Airlines 10 2026-07-25
CES5258 - 3 2026-07-18
CES5054 China Eastern Airlines 2 2026-04-20
CES6562 China Eastern Airlines 1 2026-04-19
CES6539 China Eastern Airlines 1 2026-05-24
CES6506 - 1 2026-06-13
CES6505 - 1 2026-06-15
CES5255 - 1 2026-07-18
CES5217 China Eastern Airlines 1 2026-06-28
CES5211 China Eastern Airlines 1 2026-06-27
CES5053 China Eastern Airlines 1 2026-04-19
CES2042 China Eastern Airlines 1 2026-05-08
CES2041 China Eastern Airlines 1 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CES2044 ICN → TAO Jul 25, 23:45 UTCJul 26, 11:30 UTC11h 46m
2026-07-25 CES2043 - Jul 25, 12:50 UTCJul 25, 13:20 UTC30m
2026-07-25 CES560 ICN → TAO Jul 25, 09:30 UTCJul 25, 10:00 UTC30m
2026-07-25 CES559 TAO → ICN Jul 25, 07:55 UTCJul 25, 08:20 UTC25m
2026-07-24 CES5244 SZX → NGB Jul 24, 11:45 UTCJul 24, 12:20 UTC35m
2026-07-24 CES5244 SZX → NGB Jul 24, 10:55 UTCJul 24, 11:05 UTC10m
2026-07-24 CES5243 NGB → SZX Jul 24, 07:40 UTCJul 24, 08:05 UTC25m
2026-07-24 CES2044 ICN → TAO Jul 24, 00:00 UTCJul 24, 00:15 UTC15m
2026-07-23 CES2043 - Jul 23, 12:25 UTCJul 23, 12:50 UTC25m
2026-07-23 CES560 ICN → TAO Jul 23, 08:25 UTCJul 23, 08:55 UTC30m
2026-07-23 CES559 TAO → ICN Jul 23, 06:45 UTCJul 23, 07:15 UTC30m
2026-07-19 CES560 ICN → TAO Jul 19, 07:40 UTCJul 19, 08:00 UTC20m
2026-07-19 CES559 - Jul 19, 05:50 UTCJul 19, 06:20 UTC30m
2026-07-18 CES5258 - Jul 18, 13:15 UTCJul 18, 13:25 UTC10m
2026-07-18 CES5255 - Jul 18, 02:09 UTCJul 18, 02:29 UTC20m
2026-07-17 CES5258 - Jul 17, 11:10 UTCJul 17, 11:25 UTC15m
2026-07-16 CES5244 - Jul 16, 10:00 UTCJul 16, 10:15 UTC15m
2026-07-16 CES5243 - Jul 16, 07:55 UTCJul 16, 08:20 UTC25m
2026-07-15 CES2044 - Jul 15, 23:40 UTCJul 16, 00:05 UTC25m
2026-07-15 CES2043 - Jul 15, 11:35 UTCJul 15, 11:55 UTC20m
2026-07-15 CES560 - Jul 15, 07:50 UTCJul 15, 08:10 UTC20m
2026-07-15 CES559 - Jul 15, 05:45 UTCJul 15, 06:10 UTC25m
2026-07-10 CES5244 - Jul 10, 11:30 UTCJul 10, 12:55 UTC1h 25m
2026-07-10 CES5243 - Jul 10, 08:25 UTCJul 10, 09:00 UTC35m
2026-07-09 CES2044 - Jul 9, 23:45 UTCJul 10, 00:15 UTC30m
2026-07-09 CES2043 - Jul 9, 11:45 UTCJul 9, 12:15 UTC30m
2026-06-28 CES5217 HGH → CAN Jun 28, 10:30 UTCJun 28, 11:29 UTC1h 0m
2026-06-27 CES5211 HGH → CAN Jun 27, 01:39 UTCJun 27, 01:49 UTC10m
2026-06-15 CES6505 - Jun 15, 06:40 UTCJun 15, 06:55 UTC15m
2026-06-13 CES6506 - Jun 13, 10:10 UTCJun 13, 10:25 UTC15m
2026-06-10 CES5258 CAN → TAO Jun 10, 11:10 UTCJun 10, 11:45 UTC35m
2026-06-02 CES5244 SZX → NGB Jun 2, 12:15 UTCJun 2, 12:40 UTC25m
2026-06-02 CES5244 SZX → NGB Jun 2, 11:30 UTCJun 2, 11:45 UTC15m
2026-06-02 CES5243 NGB → SZX Jun 2, 08:20 UTCJun 2, 09:10 UTC50m
2026-06-01 CES2044 ICN → TAO Jun 1, 23:35 UTCJun 2, 00:00 UTC25m
2026-06-01 CES2043 TAO → ICN Jun 1, 11:05 UTCJun 1, 11:25 UTC20m
2026-06-01 CES560 ICN → TAO Jun 1, 07:35 UTCJun 1, 08:05 UTC30m
2026-06-01 CES559 TAO → ICN Jun 1, 05:55 UTCJun 1, 06:20 UTC25m
2026-05-31 CES5244 SZX → NGB May 31, 11:20 UTCMay 31, 11:30 UTC10m
2026-05-31 CES5243 NGB → SZX May 31, 08:45 UTCMay 31, 09:10 UTC25m
2026-05-30 CES2044 ICN → TAO May 30, 23:35 UTCMay 31, 00:05 UTC30m
2026-05-30 CES2043 TAO → ICN May 30, 10:50 UTCMay 30, 11:25 UTC35m
2026-05-30 CES560 ICN → TAO May 30, 07:50 UTCMay 30, 08:20 UTC30m
2026-05-30 CES559 TAO → ICN May 30, 06:15 UTCMay 30, 06:45 UTC30m
2026-05-29 CES5244 SZX → NGB May 29, 11:15 UTCMay 29, 12:40 UTC1h 25m
2026-05-28 CES5243 NGB → SZX May 28, 23:40 UTCMay 29, 08:10 UTC8h 30m
2026-05-28 CES2043 TAO → ICN May 28, 11:05 UTCMay 28, 11:35 UTC30m
2026-05-28 CES560 ICN → TAO May 28, 07:35 UTCMay 28, 08:05 UTC30m
2026-05-28 CES559 TAO → ICN May 28, 05:45 UTCMay 28, 06:20 UTC35m
2026-05-24 CES6539 TAO → JMU May 24, 11:05 UTCMay 24, 11:15 UTC10m

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-8648 page for operator, model, and routing details .

Mode-S 781087 frequently asked

What is Mode-S code 781087?
781087 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-8648.
Where is Mode-S 781087 registered?
Mode-S code 781087 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781087 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781087, octal 36010207, decimal 7,868,551.
What flights does 781087 operate?
Mode-S 781087 has broadcast 18 distinct callsigns, including CES5244, CES5243, CES560, CES2043, CES559.