Apparatus

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sensors Mode-S transponder

78206E

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-224Y · BOEING 737 MAX 8

Hex
78206E
Octal
36020156
Decimal
7,872,622
Country
CN
Tail
B-224Y
Type
B38M
No current signal · last broadcast 18h ago
Flights observed
6
Distinct callsigns
4
Country
CN
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 78206E.

Country allocation

The ICAO 24-bit address 78206E 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 4 distinct

Callsign Airline Flights Last seen
CSZ240 - 2 2026-04-13
CSZ239 Shenzhen Airlines 2 2026-04-13
CSZ9912 Shenzhen Airlines 1 2026-04-14
CSZ8938 - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 CSZ9912 TAO → SZX Apr 14, 05:20 UTCApr 14, 06:15 UTC55m
2026-04-13 CSZ8938 - Apr 13, 15:25 UTCApr 13, 15:35 UTC10m
2026-04-13 CSZ240 - Apr 13, 09:05 UTCApr 13, 09:30 UTC25m
2026-04-13 CSZ240 - Apr 13, 05:45 UTCApr 13, 06:10 UTC25m
2026-04-13 CSZ239 SZX → SIN Apr 13, 03:30 UTCApr 13, 03:50 UTC20m
2026-04-13 CSZ239 SZX → SIN Apr 13, 00:35 UTCApr 13, 00:45 UTC10m

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-224Y page for operator, model, and routing details .

Mode-S 78206E frequently asked

What is Mode-S code 78206E?
78206E is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-224Y.
Where is Mode-S 78206E registered?
Mode-S code 78206E is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 78206E broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 78206E, octal 36020156, decimal 7,872,622.
What flights does 78206E operate?
Mode-S 78206E has broadcast 4 distinct callsigns, including CSZ240, CSZ239, CSZ9912, CSZ8938.