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 4d ago
Flights observed
73
Distinct callsigns
20
Country
CN
Last broadcast
4d ago

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
CES874 - 4 2026-07-13
CES796 - 4 2026-06-30
CES795 - 4 2026-06-30
CES6107 - 4 2026-07-01
CES2072 China Eastern Airlines 4 2026-05-08
CES2071 China Eastern Airlines 4 2026-05-08
CES873 - 3 2026-07-13
CES6108 - 3 2026-06-29
CES5022 - 3 2026-07-06
CES5021 - 3 2026-07-06
CES6638 - 2 2026-07-14
CES6637 - 2 2026-07-14
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
CES2130 - 2 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-05-19 CES2302 CAN → XIY May 19, 07:05 UTCMay 19, 07:15 UTC10m
2026-05-16 CES5022 ICN → TAO May 16, 05:35 UTCMay 16, 05:51 UTC16m
2026-05-16 CES5021 TAO → ICN May 16, 04:05 UTCMay 16, 04:25 UTC20m
2026-05-15 CES874 KUL → KMG May 15, 08:20 UTCMay 15, 08:35 UTC15m
2026-05-14 CES873 KMG → KUL May 14, 17:35 UTCMay 15, 06:35 UTC13h 0m
2026-05-08 CES2072 BKK → PKX May 8, 19:40 UTCMay 8, 20:15 UTC35m
2026-05-08 CES2071 PKX → BKK May 8, 16:50 UTCMay 8, 17:50 UTC1h 0m
2026-05-07 CES6262 CAN → XIY May 7, 14:55 UTCMay 7, 15:10 UTC15m
2026-05-06 CES2072 BKK → PKX May 6, 19:40 UTCMay 6, 21:45 UTC2h 5m
2026-05-06 CES2071 PKX → BKK May 6, 15:40 UTCMay 6, 17:50 UTC2h 9m
2026-05-06 CES5198 HRB → PKX May 6, 10:15 UTCMay 6, 10:25 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 4d ago.
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 CES874, CES796, CES795, CES6107, CES2072.