Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

781DE5

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32A8 · AIRBUS A-350-900

Hex
781DE5
Octal
36016745
Decimal
7,871,973
Country
CN
Tail
B-32A8
Type
A359
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
235
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 781DE5.

Country allocation

The ICAO 24-bit address 781DE5 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
CES243 China Eastern Airlines 16 2026-06-28
CES787 China Eastern Airlines 14 2026-06-30
CES709 China Eastern Airlines 14 2026-07-24
CES562 - 14 2026-06-26
CES710 China Eastern Airlines 13 2026-07-25
CES561 China Eastern Airlines 13 2026-06-25
CES249 - 13 2026-07-19
CES217 - 13 2026-07-15
CES244 China Eastern Airlines 11 2026-06-29
CES218 - 11 2026-07-16
CES262 - 10 2026-07-04
CES788 - 9 2026-06-30
CES786 - 9 2026-07-13
CES7236 China Eastern Airlines 9 2026-07-22
CES250 - 7 2026-07-20
CES261 - 6 2026-07-04
CES751 - 5 2026-05-03
CES7235 China Eastern Airlines 5 2026-07-21
CES785 China Eastern Airlines 4 2026-06-18
CES752 - 4 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CES548 BKK → PVG Jul 26, 20:10 UTCJul 26, 20:30 UTC20m
2026-07-26 CES728 NRT → PVG Jul 26, 04:30 UTCJul 26, 18:00 UTC13h 31m
2026-07-25 CES710 MAD → PVG Jul 25, 09:30 UTCJul 26, 02:55 UTC17h 25m
2026-07-24 CES709 PVG → MAD Jul 24, 18:50 UTCJul 25, 06:05 UTC11h 15m
2026-07-24 CES709 PVG → MAD Jul 24, 05:20 UTCJul 25, 05:15 UTC23h 55m
2026-07-24 CES728 NRT → PVG Jul 24, 04:20 UTCJul 24, 19:20 UTC15h 0m
2026-07-23 CES710 MAD → PVG Jul 23, 09:20 UTCJul 24, 02:40 UTC17h 20m
2026-07-22 CES709 PVG → MAD Jul 22, 18:35 UTCJul 23, 05:30 UTC10h 55m
2026-07-22 CES709 PVG → MAD Jul 22, 05:20 UTCJul 23, 05:15 UTC23h 55m
2026-07-22 CES709 PVG → MAD Jul 22, 03:20 UTCJul 23, 00:00 UTC20h 40m
2026-07-22 CES7236 HAN → PVG Jul 22, 01:20 UTCJul 23, 00:00 UTC22h 40m
2026-07-21 CES7236 HAN → PVG Jul 21, 23:20 UTCJul 22, 22:15 UTC22h 55m
2026-07-21 CES7236 HAN → PVG Jul 21, 22:10 UTCJul 22, 18:50 UTC20h 40m
2026-07-21 CES7235 PVG → HAN Jul 21, 08:10 UTCJul 21, 18:50 UTC10h 40m
2026-07-20 CES7235 PVG → HAN Jul 20, 16:20 UTCJul 21, 15:15 UTC22h 54m
2026-07-20 CES250 - Jul 20, 13:20 UTCJul 21, 11:55 UTC22h 34m
2026-07-20 CES250 - Jul 20, 10:00 UTCJul 21, 08:25 UTC22h 25m
2026-07-19 CES249 - Jul 19, 19:00 UTCJul 20, 05:45 UTC10h 45m
2026-07-19 CES249 - Jul 19, 09:20 UTCJul 20, 05:45 UTC20h 25m
2026-07-19 CES249 - Jul 19, 07:35 UTCJul 20, 05:45 UTC22h 10m
2026-07-19 CES782 ADL → PVG Jul 19, 01:15 UTCJul 19, 19:10 UTC17h 55m
2026-07-18 CES781 - Jul 18, 23:00 UTCJul 18, 23:35 UTC35m
2026-07-18 CES781 - Jul 18, 15:10 UTCJul 18, 20:35 UTC5h 25m
2026-07-18 CES5333 - Jul 18, 03:20 UTCJul 18, 03:30 UTC10m
2026-07-17 CES5119 - Jul 17, 11:00 UTCJul 17, 11:15 UTC15m
2026-07-17 CES5340 - Jul 17, 05:45 UTCJul 17, 05:55 UTC10m
2026-07-16 CES218 - Jul 16, 10:20 UTCJul 16, 16:49 UTC6h 30m
2026-07-15 CES217 - Jul 15, 10:20 UTCJul 16, 05:05 UTC18h 45m
2026-07-14 CES567 - Jul 14, 13:40 UTCJul 15, 08:40 UTC18h 59m
2026-07-14 CES567 - Jul 14, 09:45 UTCJul 15, 08:40 UTC22h 54m
2026-07-14 CES5549 - Jul 14, 05:40 UTCJul 15, 05:15 UTC23h 34m
2026-07-14 CES5549 - Jul 14, 02:20 UTCJul 14, 13:50 UTC11h 30m
2026-07-13 CES786 - Jul 13, 01:20 UTCJul 13, 20:40 UTC19h 20m
2026-07-12 CES786 - Jul 12, 23:20 UTCJul 13, 20:40 UTC21h 20m
2026-07-12 CES786 - Jul 12, 22:55 UTCJul 13, 20:40 UTC21h 45m
2026-07-12 CES785D - Jul 12, 01:20 UTCJul 12, 19:50 UTC18h 30m
2026-07-12 CES785D - Jul 12, 01:10 UTCJul 12, 19:50 UTC18h 40m
2026-07-11 CES785D - Jul 11, 21:20 UTCJul 12, 19:50 UTC22h 30m
2026-07-11 CES218 - Jul 11, 19:20 UTCJul 12, 19:15 UTC23h 55m
2026-07-11 CES218 - Jul 11, 19:05 UTCJul 12, 16:50 UTC21h 45m
2026-07-11 CES217 - Jul 11, 04:50 UTCJul 11, 05:10 UTC20m
2026-07-10 CES217 - Jul 10, 22:15 UTCJul 11, 02:10 UTC3h 55m
2026-07-10 CES7236 - Jul 10, 01:20 UTCJul 10, 23:05 UTC21h 45m
2026-07-09 CES7236 - Jul 9, 23:20 UTCJul 10, 23:05 UTC23h 45m
2026-07-09 CES7236 - Jul 9, 22:15 UTCJul 10, 05:40 UTC7h 25m
2026-07-09 CES7235 - Jul 9, 12:25 UTCJul 9, 20:10 UTC7h 45m
2026-07-08 CES5379 - Jul 8, 05:45 UTCJul 8, 11:30 UTC5h 45m
2026-07-07 CES5379 - Jul 7, 13:20 UTCJul 8, 11:30 UTC22h 10m
2026-07-07 CES5379 - Jul 7, 12:50 UTCJul 8, 11:15 UTC22h 25m
2026-07-07 CES568 - Jul 7, 09:25 UTCJul 8, 07:00 UTC21h 35m

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-32A8 page for operator, model, and routing details .

Mode-S 781DE5 frequently asked

What is Mode-S code 781DE5?
781DE5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32A8.
Where is Mode-S 781DE5 registered?
Mode-S code 781DE5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781DE5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781DE5, octal 36016745, decimal 7,871,973.
What flights does 781DE5 operate?
Mode-S 781DE5 has broadcast 20 distinct callsigns, including CES243, CES787, CES709, CES562, CES710.