sensors Mode-S transponder

7804B5

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-6368 · AIRBUS A-321

Hex
7804B5
Octal
36002265
Decimal
7,865,525
Country
CN
Tail
B-6368
Type
A321
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
4
Country
CN
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7804B5.

Country allocation

The ICAO 24-bit address 7804B5 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
CES2803 China Eastern Airlines 2 2026-04-13
CES2888 - 1 2026-04-13
CES2887 - 1 2026-04-13
CES2804 China Eastern Airlines 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 CES2804 BKK → NKG Apr 13, 20:10 UTCApr 13, 20:25 UTC15m
2026-04-13 CES2803 NKG → BKK Apr 13, 18:45 UTCApr 13, 19:00 UTC15m
2026-04-13 CES2803 NKG → BKK Apr 13, 16:35 UTCApr 13, 16:55 UTC20m
2026-04-13 CES2888 - Apr 13, 10:15 UTCApr 13, 10:25 UTC10m
2026-04-13 CES2887 - Apr 13, 08:20 UTCApr 13, 08:50 UTC30m

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-6368 page for operator, model, and routing details .

Mode-S 7804B5 frequently asked

What is Mode-S code 7804B5?
7804B5 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-6368.
Where is Mode-S 7804B5 registered?
Mode-S code 7804B5 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7804B5 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7804B5, octal 36002265, decimal 7,865,525.
What flights does 7804B5 operate?
Mode-S 7804B5 has broadcast 4 distinct callsigns, including CES2803, CES2888, CES2887, CES2804.