Apparatus

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sensors Mode-S transponder

781652

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-209N · BOEING 787-9 Dreamliner

Hex
781652
Octal
36013122
Decimal
7,870,034
Country
CN
Tail
B-209N
Type
B789
No current signal · last broadcast 9d ago
Flights observed
90
Distinct callsigns
17
Country
CN
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 781652.

Country allocation

The ICAO 24-bit address 781652 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 17 distinct

Callsign Airline Flights Last seen
CES542 China Eastern Airlines 15 2026-07-21
CES541 China Eastern Airlines 15 2026-07-20
CES547 - 12 2026-07-20
CES9647 China Eastern Airlines 7 2026-07-26
CES548 China Eastern Airlines 6 2026-07-19
CES5376 China Eastern Airlines 6 2026-06-14
CES5349 - 5 2026-06-18
CES9648 China Eastern Airlines 4 2026-07-26
CES5760 - 4 2026-07-17
CES5732 China Eastern Airlines 4 2026-05-07
CES5375 - 3 2026-06-13
CES5358 China Eastern Airlines 3 2026-06-08
CES5759 - 2 2026-07-17
CES5758 China Eastern Airlines 1 2026-05-06
CES5360 China Eastern Airlines 1 2026-05-31
CES5351 China Eastern Airlines 1 2026-05-31
CES5333 - 1 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CES9648 SIN → KMG Jul 26, 18:45 UTCJul 26, 21:40 UTC2h 55m
2026-07-26 CES9647 KMG → SIN Jul 26, 14:20 UTCJul 26, 17:10 UTC2h 50m
2026-07-25 CES9647 KMG → SIN Jul 25, 20:35 UTCJul 26, 17:10 UTC20h 36m
2026-07-25 CES9647 KMG → SIN Jul 25, 18:55 UTCJul 26, 17:10 UTC22h 16m
2026-07-25 CES9647 KMG → SIN Jul 25, 03:45 UTCJul 25, 17:20 UTC13h 35m
2026-07-21 CES542 BKK → PVG Jul 21, 07:10 UTCJul 21, 10:05 UTC2h 55m
2026-07-20 CES541 PVG → BKK Jul 20, 19:45 UTCJul 21, 05:10 UTC9h 24m
2026-07-20 CES547 - Jul 20, 08:55 UTCJul 20, 16:50 UTC7h 55m
2026-07-20 CES542 BKK → PVG Jul 20, 06:55 UTCJul 20, 07:10 UTC15m
2026-07-20 CES541 PVG → BKK Jul 20, 05:00 UTCJul 20, 05:20 UTC20m
2026-07-19 CES548 BKK → PVG Jul 19, 22:15 UTCJul 20, 03:30 UTC5h 15m
2026-07-19 CES548 BKK → PVG Jul 19, 20:15 UTCJul 19, 20:30 UTC15m
2026-07-19 CES547 - Jul 19, 17:15 UTCJul 19, 17:25 UTC10m
2026-07-19 CES542 BKK → PVG Jul 19, 10:30 UTCJul 19, 15:35 UTC5h 5m
2026-07-19 CES542 BKK → PVG Jul 19, 08:25 UTCJul 19, 08:40 UTC15m
2026-07-19 CES541 - Jul 19, 06:10 UTCJul 19, 06:30 UTC20m
2026-07-18 CES548 BKK → PVG Jul 18, 20:55 UTCJul 19, 04:30 UTC7h 35m
2026-07-18 CES547 - Jul 18, 18:45 UTCJul 18, 19:00 UTC15m
2026-07-18 CES547 - Jul 18, 17:00 UTCJul 18, 17:15 UTC15m
2026-07-17 CES5760 - Jul 17, 04:49 UTCJul 17, 04:59 UTC10m
2026-07-17 CES5759 - Jul 17, 02:45 UTCJul 17, 02:54 UTC10m
2026-07-14 CES542 - Jul 14, 09:05 UTCJul 14, 09:20 UTC15m
2026-07-14 CES542 - Jul 14, 07:00 UTCJul 14, 07:15 UTC15m
2026-07-14 CES541 - Jul 14, 05:00 UTCJul 14, 05:10 UTC10m
2026-07-13 CES548 - Jul 13, 19:35 UTCJul 14, 03:20 UTC7h 45m
2026-07-13 CES542 - Jul 13, 06:50 UTCJul 13, 15:45 UTC8h 55m
2026-07-13 CES541 - Jul 13, 04:40 UTCJul 13, 04:50 UTC10m
2026-07-12 CES548 - Jul 12, 21:50 UTCJul 13, 03:05 UTC5h 15m
2026-07-12 CES548 - Jul 12, 19:50 UTCJul 12, 20:05 UTC15m
2026-07-12 CES547 - Jul 12, 17:01 UTCJul 12, 17:10 UTC10m
2026-07-12 CES542 - Jul 12, 09:10 UTCJul 12, 15:20 UTC6h 10m
2026-07-12 CES542 - Jul 12, 07:10 UTCJul 12, 07:20 UTC10m
2026-07-11 CES542 - Jul 11, 08:15 UTCJul 11, 15:50 UTC7h 35m
2026-07-11 CES542 - Jul 11, 06:55 UTCJul 11, 07:05 UTC10m
2026-07-10 CES541 - Jul 10, 20:00 UTCJul 11, 05:15 UTC9h 15m
2026-07-10 CES547 - Jul 10, 15:15 UTCJul 10, 17:30 UTC2h 15m
2026-07-08 CES5760 - Jul 8, 05:40 UTCJul 8, 06:20 UTC40m
2026-07-07 CES9648 - Jul 7, 19:30 UTCJul 7, 22:25 UTC2h 55m
2026-07-07 CES9647 - Jul 7, 04:30 UTCJul 7, 18:00 UTC13h 30m
2026-07-06 CES5760 - Jul 6, 06:00 UTCJul 6, 06:20 UTC20m
2026-07-06 CES5760 - Jul 6, 05:15 UTCJul 6, 05:30 UTC15m
2026-07-06 CES5759 - Jul 6, 03:05 UTCJul 6, 03:20 UTC15m
2026-07-05 CES9648 - Jul 5, 19:15 UTCJul 5, 22:15 UTC3h 0m
2026-07-05 CES9647 - Jul 5, 14:50 UTCJul 5, 17:45 UTC2h 55m
2026-07-04 CES9648 - Jul 4, 19:35 UTCJul 4, 22:30 UTC2h 55m
2026-07-04 CES9647 - Jul 4, 15:25 UTCJul 4, 17:55 UTC2h 30m
2026-07-03 CES542 - Jul 3, 07:10 UTCJul 3, 09:20 UTC2h 10m
2026-07-02 CES541 BKK → BKK Jul 2, 19:25 UTCJul 3, 05:30 UTC10h 5m
2026-07-02 CES547 PVG → BKK Jul 2, 06:51 UTCJul 2, 17:25 UTC10h 34m
2026-07-01 CES541 - Jul 1, 21:05 UTCJul 2, 04:50 UTC7h 45m

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-209N page for operator, model, and routing details .

Mode-S 781652 frequently asked

What is Mode-S code 781652?
781652 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-209N.
Where is Mode-S 781652 registered?
Mode-S code 781652 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 781652 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 781652, octal 36013122, decimal 7,870,034.
What flights does 781652 operate?
Mode-S 781652 has broadcast 17 distinct callsigns, including CES542, CES541, CES547, CES9647, CES548.