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 4h ago
Flights observed
28
Distinct callsigns
12
Country
CN
Last broadcast
4h 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 12 distinct

Callsign Airline Flights Last seen
CES5376 China Eastern Airlines 6 2026-06-14
CES5349 - 5 2026-06-18
CES5732 China Eastern Airlines 4 2026-05-07
CES5375 - 3 2026-06-13
CES5358 China Eastern Airlines 3 2026-06-08
CES5758 China Eastern Airlines 1 2026-05-06
CES548 - 1 2026-06-20
CES542 - 1 2026-06-20
CES541 - 1 2026-06-20
CES5360 China Eastern Airlines 1 2026-05-31
CES5351 China Eastern Airlines 1 2026-05-31
CES5333 - 1 2026-06-19

Recent flights last 28

DateFlightRouteTakeoffLandingDuration
2026-06-20 CES548 - Jun 20, 19:34 UTCJun 21, 03:49 UTC8h 15m
2026-06-20 CES542 - Jun 20, 07:04 UTCJun 20, 17:04 UTC10h 0m
2026-06-20 CES541 - Jun 20, 03:19 UTCJun 20, 05:29 UTC2h 10m
2026-06-19 CES5333 - Jun 19, 05:00 UTCJun 19, 05:09 UTC10m
2026-06-18 CES5349 - Jun 18, 16:05 UTCJun 18, 16:30 UTC25m
2026-06-14 CES5376 AKA → PVG Jun 14, 13:35 UTCJun 14, 13:45 UTC10m
2026-06-13 CES5376 AKA → PVG Jun 13, 14:35 UTCJun 14, 13:45 UTC23h 11m
2026-06-13 CES5375 - Jun 13, 11:10 UTCJun 13, 14:50 UTC3h 40m
2026-06-08 CES5358 SZX → SHA Jun 8, 15:30 UTCJun 8, 15:45 UTC15m
2026-06-08 CES5349 SHA → SZX Jun 8, 13:40 UTCJun 8, 14:00 UTC20m
2026-06-07 CES5376 AKA → PVG Jun 7, 10:10 UTCJun 7, 13:45 UTC3h 35m
2026-06-06 CES5376 AKA → PVG Jun 6, 13:44 UTCJun 7, 10:40 UTC20h 55m
2026-06-06 CES5376 AKA → PVG Jun 6, 10:55 UTCJun 7, 10:10 UTC23h 15m
2026-06-05 CES5375 PVG → AKA Jun 5, 10:00 UTCJun 5, 10:15 UTC15m
2026-06-03 CES5358 SZX → SHA Jun 3, 13:10 UTCJun 3, 13:20 UTC10m
2026-06-03 CES5349 SHA → SZX Jun 3, 10:35 UTCJun 3, 10:55 UTC20m
2026-06-02 CES5349 SHA → SZX Jun 2, 10:20 UTCJun 2, 10:40 UTC20m
2026-06-01 CES5358 SZX → SHA Jun 1, 13:50 UTCJun 1, 14:00 UTC10m
2026-06-01 CES5349 SHA → SZX Jun 1, 10:35 UTCJun 1, 11:25 UTC50m
2026-05-31 CES5360 SZX → SHA May 31, 14:35 UTCMay 31, 14:45 UTC10m
2026-05-31 CES5351 SHA → SZX May 31, 11:15 UTCMay 31, 11:40 UTC25m
2026-05-30 CES5375 PVG → AKA May 30, 10:10 UTCMay 30, 14:40 UTC4h 30m
2026-05-23 CES5376 AKA → PVG May 23, 10:15 UTCMay 23, 15:05 UTC4h 50m
2026-05-07 CES5732 CAN → KMG May 7, 04:10 UTCMay 7, 04:25 UTC15m
2026-05-06 CES5758 SZX → KMG May 6, 10:01 UTCMay 6, 10:15 UTC15m
2026-05-01 CES5732 CAN → KMG May 1, 03:55 UTCMay 1, 04:10 UTC15m
2026-04-25 CES5732 CAN → KMG Apr 25, 04:00 UTCApr 25, 04:15 UTC15m
2026-04-22 CES5732 CAN → KMG Apr 22, 04:00 UTCApr 22, 04:15 UTC15m

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 4h 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 12 distinct callsigns, including CES5376, CES5349, CES5732, CES5375, CES5358.