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 8h ago
Flights observed
204
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

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
CES562 - 14 2026-06-26
CES561 China Eastern Airlines 13 2026-06-25
CES217 - 12 2026-07-11
CES710 - 11 2026-06-17
CES244 China Eastern Airlines 11 2026-06-29
CES262 - 10 2026-07-04
CES249 China Eastern Airlines 10 2026-06-10
CES218 - 10 2026-07-11
CES788 - 9 2026-06-30
CES786 - 9 2026-07-13
CES709 China Eastern Airlines 9 2026-06-16
CES7236 - 6 2026-07-10
CES261 - 6 2026-07-04
CES751 - 5 2026-05-03
CES250 China Eastern Airlines 5 2026-06-11
CES785 China Eastern Airlines 4 2026-06-18
CES752 - 4 2026-05-03
CES524 China Eastern Airlines 4 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-06 CES218 - Jul 6, 13:40 UTCJul 7, 07:20 UTC17h 40m
2026-07-06 CES218 - Jul 6, 11:20 UTCJul 7, 07:20 UTC20h 0m
2026-07-06 CES218 - Jul 6, 10:20 UTCJul 7, 07:20 UTC21h 0m
2026-07-05 CES217 - Jul 5, 22:30 UTCJul 6, 05:20 UTC6h 50m
2026-07-05 CES217 - Jul 5, 03:30 UTCJul 6, 02:10 UTC22h 40m
2026-07-04 CES262 - Jul 4, 23:20 UTCJul 5, 23:15 UTC23h 55m
2026-07-04 CES262 - Jul 4, 20:40 UTCJul 5, 04:15 UTC7h 35m
2026-07-04 CES261 - Jul 4, 08:55 UTCJul 4, 17:00 UTC8h 5m
2026-07-02 CES582 - Jul 2, 21:05 UTCJul 3, 08:20 UTC11h 15m
2026-07-01 CES581 - Jul 1, 20:10 UTCJul 2, 15:10 UTC19h 0m
2026-07-01 CES581 - Jul 1, 17:20 UTCJul 2, 15:10 UTC21h 50m
2026-06-30 CES788 - Jun 30, 19:25 UTCJul 1, 13:30 UTC18h 5m
2026-06-30 CES787 PVG → FCO Jun 30, 06:05 UTCJun 30, 16:30 UTC10h 25m
2026-06-29 CES787 PVG → FCO Jun 29, 17:19 UTCJun 30, 16:30 UTC23h 10m
2026-06-29 CES787 PVG → FCO Jun 29, 15:19 UTCJun 30, 15:15 UTC23h 56m
2026-06-29 CES244 MXP → PVG Jun 29, 13:19 UTCJun 30, 13:15 UTC23h 55m
2026-06-29 CES244 MXP → PVG Jun 29, 11:35 UTCJun 30, 09:55 UTC22h 21m
2026-06-28 CES243 PVG → MXP Jun 28, 19:25 UTCJun 29, 05:15 UTC9h 50m
2026-06-28 CES243 PVG → MXP Jun 28, 07:20 UTCJun 29, 05:15 UTC21h 55m
2026-06-28 CES243 PVG → MXP Jun 28, 07:05 UTCJun 29, 05:15 UTC22h 10m
2026-06-27 CES262 - Jun 27, 23:19 UTCJun 28, 23:09 UTC23h 50m
2026-06-27 CES262 - Jun 27, 21:19 UTCJun 28, 19:44 UTC22h 25m
2026-06-27 CES262 - Jun 27, 20:39 UTCJun 28, 07:20 UTC10h 40m
2026-06-27 CES261 - Jun 27, 06:15 UTCJun 27, 17:25 UTC11h 10m
2026-06-26 CES562 - Jun 26, 09:24 UTCJun 27, 09:15 UTC23h 50m
2026-06-26 CES562 - Jun 26, 08:24 UTCJun 27, 06:19 UTC21h 55m
2026-06-26 CES562 - Jun 26, 01:15 UTCJun 26, 10:30 UTC9h 15m
2026-06-25 CES561 PVG → SYD Jun 25, 05:29 UTCJun 25, 23:14 UTC17h 45m
2026-06-25 CES523 - Jun 25, 02:10 UTCJun 25, 03:50 UTC1h 40m
2026-06-23 CES788 - Jun 23, 19:34 UTCJun 24, 02:34 UTC7h 0m
2026-06-23 CES787 PVG → FCO Jun 23, 05:59 UTCJun 23, 16:09 UTC10h 10m

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 8h ago.
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, CES562, CES561, CES217.