Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781F44

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32DZ · AIRBUS A-320neo

Hex
781F44
Octal
36017504
Decimal
7,872,324
Country
CN
Tail
B-32DZ
Type
A20N
No current signal · last broadcast Jul 25, 21:50 UTC
Flights observed
84
Distinct callsigns
20
Country
CN
Last broadcast
Jul 25, 21:50 UTC

Last known position

Most recent position reported by Mode-S 781F44.

Country allocation

The ICAO 24-bit address 781F44 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
CES6107 China Eastern Airlines 5 2026-07-25
CES2072 China Eastern Airlines 5 2026-07-25
CES2071 China Eastern Airlines 5 2026-07-25
CES874 - 4 2026-07-13
CES796 - 4 2026-06-30
CES795 - 4 2026-06-30
CES6108 China Eastern Airlines 4 2026-07-25
CES873 - 3 2026-07-13
CES6638 China Eastern Airlines 3 2026-07-21
CES6637 China Eastern Airlines 3 2026-07-21
CES5022 - 3 2026-07-06
CES5021 - 3 2026-07-06
CES2212 China Eastern Airlines 3 2026-07-20
CES6528 - 2 2026-07-04
CES6262 China Eastern Airlines 2 2026-06-21
CES6229 - 2 2026-06-27
CES6110 - 2 2026-07-04
CES6109 - 2 2026-07-03
CES5015 - 2 2026-07-03
CES2342 China Eastern Airlines 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CES2072 BKK → PKX Jul 25, 19:35 UTCJul 25, 21:50 UTC2h 15m
2026-07-25 CES2071 PKX → BKK Jul 25, 15:55 UTCJul 25, 17:30 UTC1h 35m
2026-07-25 CES6108 URC → PKX Jul 25, 10:00 UTCJul 25, 10:10 UTC10m
2026-07-25 CES6107 NGB → TAO Jul 25, 01:20 UTCJul 25, 01:45 UTC25m
2026-07-24 CES2121 XIY → PKX Jul 24, 00:05 UTCJul 24, 15:40 UTC15h 35m
2026-07-21 CES6638 SZX → XIY Jul 21, 13:45 UTCJul 21, 14:00 UTC15m
2026-07-21 CES6637 XIY → SZX Jul 21, 12:00 UTCJul 21, 12:10 UTC10m
2026-07-20 CES2212 HRB → XIY Jul 20, 08:20 UTCJul 20, 08:50 UTC30m
2026-07-19 CES2212 HRB → XIY Jul 19, 11:05 UTCJul 20, 08:50 UTC21h 45m
2026-07-19 CES2212 HRB → XIY Jul 19, 10:55 UTCJul 20, 08:50 UTC21h 55m
2026-07-19 CES853 PKX → HKG Jul 19, 08:10 UTCJul 19, 09:30 UTC1h 20m
2026-07-14 CES6638 - Jul 14, 14:30 UTCJul 14, 14:45 UTC15m
2026-07-14 CES6637 - Jul 14, 13:00 UTCJul 14, 13:15 UTC15m
2026-07-13 CES874 - Jul 13, 08:01 UTCJul 13, 10:55 UTC2h 55m
2026-07-13 CES873 - Jul 13, 03:25 UTCJul 13, 06:25 UTC3h 0m
2026-07-11 CES874 - Jul 11, 10:20 UTCJul 11, 10:45 UTC25m
2026-07-11 CES874 - Jul 11, 07:50 UTCJul 11, 08:05 UTC15m
2026-07-11 CES873 - Jul 11, 03:30 UTCJul 11, 06:30 UTC3h 0m
2026-07-06 CES5022 - Jul 6, 05:55 UTCJul 6, 06:15 UTC20m
2026-07-06 CES5021 - Jul 6, 03:35 UTCJul 6, 04:05 UTC30m
2026-07-05 CES6638 - Jul 5, 14:30 UTCJul 5, 14:50 UTC20m
2026-07-05 CES6637 - Jul 5, 13:00 UTCJul 5, 13:10 UTC10m
2026-07-05 CES2112 - Jul 5, 06:25 UTCJul 5, 06:40 UTC15m
2026-07-05 CES2130 - Jul 5, 04:20 UTCJul 5, 04:30 UTC10m
2026-07-04 CES6528 - Jul 4, 14:25 UTCJul 4, 14:35 UTC10m
2026-07-04 CES6110 - Jul 4, 05:30 UTCJul 4, 05:45 UTC15m
2026-07-03 CES6109 - Jul 3, 15:10 UTCJul 3, 15:30 UTC20m
2026-07-03 CES5016 - Jul 3, 07:25 UTCJul 3, 07:40 UTC15m
2026-07-03 CES5015 - Jul 3, 03:40 UTCJul 3, 04:35 UTC55m
2026-07-02 CES6528 - Jul 2, 13:55 UTCJul 2, 14:05 UTC10m
2026-07-01 CES6107 - Jul 1, 03:15 UTCJul 1, 03:45 UTC30m
2026-06-30 CES796 - Jun 30, 19:05 UTCJun 30, 22:20 UTC3h 15m
2026-06-30 CES795 - Jun 30, 14:45 UTCJun 30, 17:40 UTC2h 55m
2026-06-29 CES6108 - Jun 29, 09:34 UTCJun 29, 09:44 UTC10m
2026-06-29 CES6107 - Jun 29, 01:14 UTCJun 29, 01:34 UTC20m
2026-06-28 CES796 - Jun 28, 17:55 UTCJun 28, 20:59 UTC3h 5m
2026-06-28 CES795 - Jun 28, 06:05 UTCJun 28, 16:25 UTC10h 20m
2026-06-27 CES6229 - Jun 27, 03:40 UTCJun 27, 04:00 UTC20m
2026-06-26 CES6472 - Jun 26, 23:09 UTCJun 26, 23:25 UTC15m
2026-06-26 CES6471 - Jun 26, 18:20 UTCJun 26, 18:39 UTC20m
2026-06-26 CES2130 - Jun 26, 04:10 UTCJun 26, 04:20 UTC10m
2026-06-23 CES6235 - Jun 23, 15:09 UTCJun 23, 15:19 UTC10m
2026-06-23 CES6108 - Jun 23, 09:40 UTCJun 23, 09:49 UTC10m
2026-06-23 CES6107 - Jun 23, 01:20 UTCJun 23, 01:40 UTC20m
2026-06-22 CES796 - Jun 22, 17:55 UTCJun 22, 21:00 UTC3h 5m
2026-06-22 CES795 - Jun 22, 12:49 UTCJun 22, 16:20 UTC3h 30m
2026-06-21 CES6262 CAN → XIY Jun 21, 14:54 UTCJun 21, 15:09 UTC15m
2026-06-20 CES2283 XIY → DSN Jun 20, 14:44 UTCJun 20, 14:54 UTC10m
2026-06-20 CES2270 - Jun 20, 04:54 UTCJun 20, 05:09 UTC15m
2026-06-20 CES2269 - Jun 20, 03:09 UTCJun 20, 03:19 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-32DZ page for operator, model, and routing details .

Mode-S 781F44 frequently asked

What is Mode-S code 781F44?
781F44 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32DZ.
Where is Mode-S 781F44 registered?
Mode-S code 781F44 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781F44 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781F44, octal 36017504, decimal 7,872,324.
What flights does 781F44 operate?
Mode-S 781F44 has broadcast 20 distinct callsigns, including CES6107, CES2072, CES2071, CES874, CES796.