Apparatus

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sensors Mode-S transponder

781EB7

ICAO 24-bit transponder address · allocated to China

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

Hex
781EB7
Octal
36017267
Decimal
7,872,183
Country
CN
Tail
B-32CZ
Type
A359
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
222
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S 781EB7.

Country allocation

The ICAO 24-bit address 781EB7 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 - 19 2026-07-10
CES244 - 17 2026-07-11
CES249 China Eastern Airlines 16 2026-07-26
CES785 China Eastern Airlines 14 2026-07-08
CES562 - 13 2026-07-08
CES787 China Eastern Airlines 12 2026-06-29
CES561 China Eastern Airlines 12 2026-07-07
CES788 - 10 2026-06-29
CES710 China Eastern Airlines 10 2026-07-22
CES709 - 10 2026-07-21
CES786 - 9 2026-07-09
CES7235 China Eastern Airlines 9 2026-05-23
CES250 - 9 2026-07-19
CES262 - 8 2026-07-26
CES7236 China Eastern Airlines 7 2026-07-24
CES261 - 5 2026-07-25
CES217 China Eastern Airlines 5 2026-05-08
CES752 - 3 2026-04-13
CES582 China Eastern Airlines 3 2026-04-20
CES5350 China Eastern Airlines 3 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CES249 PVG → BCN Jul 26, 18:40 UTCJul 26, 21:45 UTC3h 5m
2026-07-26 CES5300 - Jul 26, 11:25 UTCJul 26, 11:35 UTC10m
2026-07-26 CES262 - Jul 26, 08:25 UTCJul 26, 08:35 UTC10m
2026-07-25 CES262 - Jul 25, 20:40 UTCJul 26, 00:20 UTC3h 40m
2026-07-25 CES261 - Jul 25, 05:40 UTCJul 25, 17:00 UTC11h 20m
2026-07-24 CES7236 HAN → PVG Jul 24, 05:50 UTCJul 25, 05:40 UTC23h 50m
2026-07-23 CES7236 HAN → PVG Jul 23, 22:25 UTCJul 24, 06:05 UTC7h 40m
2026-07-22 CES710 MAD → PVG Jul 22, 14:05 UTCJul 23, 08:55 UTC18h 50m
2026-07-22 CES710 MAD → PVG Jul 22, 11:50 UTCJul 23, 08:55 UTC21h 5m
2026-07-22 CES710 MAD → PVG Jul 22, 10:20 UTCJul 23, 08:55 UTC22h 35m
2026-07-21 CES709 - Jul 21, 19:15 UTCJul 22, 05:25 UTC10h 10m
2026-07-21 CES709 - Jul 21, 07:50 UTCJul 22, 05:25 UTC21h 35m
2026-07-21 CES709 - Jul 21, 07:20 UTCJul 22, 05:25 UTC22h 5m
2026-07-21 CES782 ADL → PVG Jul 21, 04:00 UTCJul 22, 01:05 UTC21h 5m
2026-07-21 CES782 ADL → PVG Jul 21, 00:35 UTCJul 21, 19:35 UTC19h 0m
2026-07-20 CES781 PVG → ADL Jul 20, 05:10 UTCJul 20, 21:00 UTC15h 50m
2026-07-19 CES250 BCN → KIX Jul 19, 09:30 UTCJul 20, 03:10 UTC17h 40m
2026-07-18 CES249 - Jul 18, 18:45 UTCJul 19, 05:30 UTC10h 45m
2026-07-18 CES249 - Jul 18, 05:50 UTCJul 19, 05:30 UTC23h 40m
2026-07-18 CES524 - Jul 18, 05:25 UTCJul 19, 03:45 UTC22h 20m
2026-07-17 CES710 MAD → PVG Jul 17, 09:50 UTCJul 18, 03:55 UTC18h 6m
2026-07-16 CES709 - Jul 16, 09:50 UTCJul 17, 05:35 UTC19h 45m
2026-07-16 CES709 - Jul 16, 09:35 UTCJul 17, 05:35 UTC20h 0m
2026-07-16 CES567 - Jul 16, 04:15 UTCJul 16, 07:55 UTC3h 40m
2026-07-12 CES568 - Jul 12, 15:40 UTCJul 12, 19:50 UTC4h 10m
2026-07-11 CES244 - Jul 11, 19:50 UTCJul 12, 13:55 UTC18h 5m
2026-07-11 CES244 - Jul 11, 19:30 UTCJul 12, 13:55 UTC18h 25m
2026-07-10 CES243 - Jul 10, 09:50 UTCJul 11, 05:40 UTC19h 50m
2026-07-10 CES243 - Jul 10, 09:25 UTCJul 11, 05:40 UTC20h 15m
2026-07-09 CES786 - Jul 9, 11:50 UTCJul 10, 07:25 UTC19h 35m
2026-07-09 CES786 - Jul 9, 10:10 UTCJul 10, 07:25 UTC21h 15m
2026-07-08 CES785 PVG → VCE Jul 8, 10:20 UTCJul 9, 05:00 UTC18h 40m
2026-07-08 CES785 PVG → VCE Jul 8, 08:35 UTCJul 9, 05:00 UTC20h 25m
2026-07-08 CES562 - Jul 8, 01:50 UTCJul 9, 01:45 UTC23h 55m
2026-07-08 CES562 - Jul 8, 01:15 UTCJul 8, 23:10 UTC21h 55m
2026-07-07 CES561 PVG → SYD Jul 7, 07:25 UTCJul 7, 22:50 UTC15h 25m
2026-07-07 CES561 PVG → SYD Jul 7, 03:20 UTCJul 7, 22:50 UTC19h 30m
2026-07-06 CES561 PVG → SYD Jul 6, 15:50 UTCJul 7, 15:45 UTC23h 55m
2026-07-06 CES786 - Jul 6, 11:50 UTCJul 7, 07:45 UTC19h 55m
2026-07-06 CES786 - Jul 6, 09:50 UTCJul 7, 07:45 UTC21h 55m
2026-07-05 CES785 PVG → VCE Jul 5, 22:20 UTCJul 6, 05:00 UTC6h 40m
2026-07-05 CES785 PVG → VCE Jul 5, 05:50 UTCJul 6, 05:00 UTC23h 10m
2026-07-05 CES785 PVG → VCE Jul 5, 04:20 UTCJul 6, 03:45 UTC23h 25m
2026-07-04 CES250 BCN → PVG Jul 4, 09:40 UTCJul 5, 02:45 UTC17h 5m
2026-07-03 CES249 PVG → BCN Jul 3, 19:05 UTCJul 4, 05:50 UTC10h 45m
2026-07-03 CES249 PVG → BCN Jul 3, 10:40 UTCJul 4, 05:50 UTC19h 10m
2026-07-03 CES249 PVG → BCN Jul 3, 08:20 UTCJul 4, 05:50 UTC21h 30m
2026-07-03 CES562 - Jul 3, 01:15 UTCJul 3, 19:25 UTC18h 10m
2026-07-02 CES561 PVG → SYD Jul 2, 04:00 UTCJul 2, 22:50 UTC18h 50m
2026-07-01 CES710 - Jul 1, 13:50 UTCJul 2, 08:00 UTC18h 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-32CZ page for operator, model, and routing details .

Mode-S 781EB7 frequently asked

What is Mode-S code 781EB7?
781EB7 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32CZ.
Where is Mode-S 781EB7 registered?
Mode-S code 781EB7 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781EB7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781EB7, octal 36017267, decimal 7,872,183.
What flights does 781EB7 operate?
Mode-S 781EB7 has broadcast 20 distinct callsigns, including CES243, CES244, CES249, CES785, CES562.