Apparatus

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sensors Mode-S transponder

7800AC

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-5382 · BOEING 737-800

Hex
7800AC
Octal
36000254
Decimal
7,864,492
Country
CN
Tail
B-5382
Type
B738
No current signal · last broadcast 8h ago
Flights observed
58
Distinct callsigns
20
Country
CN
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 7800AC.

Country allocation

The ICAO 24-bit address 7800AC 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
CXA8429 Xiamen Airlines 4 2026-05-27
CXA885 Xiamen Airlines 3 2026-05-12
CXA843 - 3 2026-05-04
CXA8871 - 2 2026-04-22
CXA8678 Xiamen Airlines 2 2026-04-24
CXA8623 - 2 2026-04-22
CXA8383 Xiamen Airlines 2 2026-04-30
CXA8377 Xiamen Airlines 2 2026-04-30
CXA8345 Xiamen Airlines 2 2026-04-28
CXA8331 Xiamen Airlines 2 2026-04-30
CXA8872 - 1 2026-04-20
CXA886 Xiamen Airlines 1 2026-05-13
CXA8828 - 1 2026-04-16
CXA8827 - 1 2026-04-16
CXA882 - 1 2026-05-30
CXA881 - 1 2026-05-30
CXA872 Xiamen Airlines 1 2026-05-30
CXA871 - 1 2026-05-30
CXA8690 Xiamen Airlines 1 2026-05-01
CXA869 Xiamen Airlines 1 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CXA882 - May 30, 11:50 UTCMay 30, 12:20 UTC30m
2026-05-30 CXA881 - May 30, 10:00 UTCMay 30, 10:30 UTC30m
2026-05-30 CXA872 ICN → XMN May 30, 04:45 UTCMay 30, 05:10 UTC25m
2026-05-30 CXA871 - May 30, 02:40 UTCMay 30, 03:20 UTC40m
2026-05-29 CXA8430 KMG → FOC May 29, 05:40 UTCMay 29, 06:05 UTC25m
2026-05-27 CXA8429 FOC → KMG May 27, 14:35 UTCMay 28, 06:15 UTC15h 40m
2026-05-27 CXA8429 FOC → KMG May 27, 05:59 UTCMay 28, 01:35 UTC19h 35m
2026-05-27 CXA8429 FOC → KMG May 27, 00:30 UTCMay 27, 14:35 UTC14h 6m
2026-05-26 CXA8429 FOC → KMG May 26, 13:54 UTCMay 27, 06:09 UTC16h 15m
2026-05-25 CXA8660 - May 25, 10:05 UTCMay 25, 11:05 UTC1h 0m
2026-05-24 CXA8659 - May 24, 13:00 UTCMay 25, 08:20 UTC19h 20m
2026-05-24 CXA8665 XMN → KHH May 24, 11:35 UTCMay 24, 12:00 UTC25m
2026-05-23 CXA8648 HKG → FOC May 23, 13:25 UTCMay 24, 08:45 UTC19h 20m
2026-05-23 CXA8647 FOC → HKG May 23, 09:40 UTCMay 23, 11:40 UTC2h 0m
2026-05-23 CXA8304 SZX → CKG May 23, 04:30 UTCMay 23, 04:40 UTC10m
2026-05-19 CXA8682 MFM → XMN May 19, 07:15 UTCMay 19, 07:30 UTC15m
2026-05-15 CXA8315 HGH → HAK May 15, 00:45 UTCMay 15, 11:50 UTC11h 5m
2026-05-13 CXA886 SIN → XMN May 13, 01:15 UTCMay 13, 01:30 UTC15m
2026-05-12 CXA885 XMN → SIN May 12, 13:45 UTCMay 12, 13:55 UTC10m
2026-05-12 CXA885 XMN → SIN May 12, 10:35 UTCMay 12, 10:55 UTC20m
2026-05-11 CXA885 XMN → SIN May 11, 13:30 UTCMay 12, 10:55 UTC21h 26m
2026-05-06 CXA816 NRT → XMN May 6, 06:05 UTCMay 6, 07:40 UTC1h 35m
2026-05-06 CXA815 XMN → NRT May 6, 03:20 UTCMay 6, 04:45 UTC1h 25m
2026-05-05 CXA844 - May 5, 19:15 UTCMay 5, 21:25 UTC2h 10m
2026-05-04 CXA843 - May 4, 23:30 UTCMay 5, 17:50 UTC18h 20m
2026-05-04 CXA843 - May 4, 21:35 UTCMay 5, 17:50 UTC20h 15m
2026-05-04 CXA843 - May 4, 17:40 UTCMay 4, 20:20 UTC2h 41m
2026-05-01 CXA8690 TPE → HGH May 1, 04:55 UTCMay 1, 05:30 UTC35m
2026-05-01 CXA8689 HGH → TPE May 1, 02:55 UTCMay 1, 03:40 UTC45m
2026-04-30 CXA8331 SHA → SZX Apr 30, 15:00 UTCApr 30, 15:15 UTC15m
2026-04-30 CXA8377 SHA → SZX Apr 30, 08:00 UTCApr 30, 08:15 UTC15m
2026-04-30 CXA8383 KHN → SZX Apr 30, 00:50 UTCApr 30, 01:00 UTC10m
2026-04-28 CXA8384 SZX → KHN Apr 28, 22:49 UTCApr 28, 23:00 UTC10m
2026-04-28 CXA8345 HGH → SZX Apr 28, 14:00 UTCApr 28, 14:20 UTC20m
2026-04-26 CXA8370 ZUH → HGH Apr 26, 02:40 UTCApr 26, 02:50 UTC10m
2026-04-26 CXA8369 HGH → ZUH Apr 26, 00:55 UTCApr 26, 01:15 UTC20m
2026-04-24 CXA8678 KUL → HGH Apr 24, 09:25 UTCApr 24, 12:10 UTC2h 45m
2026-04-24 CXA8678 KUL → HGH Apr 24, 08:10 UTCApr 24, 08:30 UTC20m
2026-04-24 CXA8677 HGH → KUL Apr 24, 03:15 UTCApr 24, 06:50 UTC3h 35m
2026-04-22 CXA8871 - Apr 22, 09:40 UTCApr 22, 09:50 UTC10m
2026-04-22 CXA8624 - Apr 22, 08:01 UTCApr 22, 08:10 UTC10m
2026-04-22 CXA8623 - Apr 22, 01:30 UTCApr 22, 01:40 UTC10m
2026-04-21 CXA8331 SHA → SZX Apr 21, 14:50 UTCApr 21, 15:15 UTC25m
2026-04-21 CXA8332 SZX → SHA Apr 21, 10:15 UTCApr 21, 10:25 UTC10m
2026-04-21 CXA8377 SHA → SZX Apr 21, 08:25 UTCApr 21, 08:45 UTC20m
2026-04-21 CXA8383 KHN → SZX Apr 21, 00:45 UTCApr 21, 00:55 UTC10m
2026-04-20 CXA8346 SZX → HGH Apr 20, 15:40 UTCApr 20, 15:50 UTC10m
2026-04-20 CXA8872 - Apr 20, 13:45 UTCApr 20, 13:55 UTC10m
2026-04-20 CXA8871 - Apr 20, 08:40 UTCApr 20, 08:50 UTC10m
2026-04-20 CXA8623 - Apr 20, 01:35 UTCApr 20, 01:50 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-5382 page for operator, model, and routing details .

Mode-S 7800AC frequently asked

What is Mode-S code 7800AC?
7800AC is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-5382.
Where is Mode-S 7800AC registered?
Mode-S code 7800AC is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7800AC broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7800AC, octal 36000254, decimal 7,864,492.
What flights does 7800AC operate?
Mode-S 7800AC has broadcast 20 distinct callsigns, including CXA8429, CXA885, CXA843, CXA8871, CXA8678.