sensors Mode-S transponder

7820A3

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-225F · BOEING 737 MAX 8

Hex
7820A3
Octal
36020243
Decimal
7,872,675
Country
CN
Tail
B-225F
Type
B38M
No current signal · last broadcast 3d ago
Flights observed
82
Distinct callsigns
20
Country
CN
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 7820A3.

Country allocation

The ICAO 24-bit address 7820A3 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
CXA892 Xiamen Airlines 12 2026-05-20
CXA867 Xiamen Airlines 9 2026-05-27
CXA868 Xiamen Airlines 8 2026-05-27
CXA853 Xiamen Airlines 7 2026-05-25
CXA847 Xiamen Airlines 5 2026-05-09
CXA838 - 5 2026-05-26
CXA856 Xiamen Airlines 4 2026-04-17
CXA854 Xiamen Airlines 4 2026-05-26
CXA837 - 4 2026-05-21
CXA855 Xiamen Airlines 3 2026-04-16
CXA8842 Xiamen Airlines 2 2026-04-16
CXA8841 Xiamen Airlines 2 2026-04-16
CXA872 Xiamen Airlines 2 2026-04-26
CXA8715 Xiamen Airlines 2 2026-05-05
CXA848 Xiamen Airlines 2 2026-05-09
CXA824 Xiamen Airlines 2 2026-05-06
CXA823 Xiamen Airlines 2 2026-05-03
CXA8716 Xiamen Airlines 1 2026-04-22
CXA871 - 1 2026-04-26
CXA844 - 1 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 CXA868 CGK → XMN May 27, 06:34 UTCMay 27, 08:05 UTC1h 31m
2026-05-27 CXA867 XMN → CGK May 27, 04:34 UTCMay 27, 04:55 UTC20m
2026-05-26 CXA838 - May 26, 16:59 UTCMay 27, 02:54 UTC9h 55m
2026-05-26 CXA854 BKK → XMN May 26, 05:30 UTCMay 26, 13:24 UTC7h 55m
2026-05-25 CXA853 XMN → BKK May 25, 16:55 UTCMay 26, 04:00 UTC11h 5m
2026-05-25 CXA854 BKK → XMN May 25, 05:30 UTCMay 25, 13:25 UTC7h 55m
2026-05-25 CXA853 XMN → BKK May 25, 03:05 UTCMay 25, 04:00 UTC55m
2026-05-23 CXA8380 SZX → TSN May 23, 04:40 UTCMay 23, 04:50 UTC10m
2026-05-23 CXA8379 TSN → SZX May 23, 02:15 UTCMay 23, 02:30 UTC15m
2026-05-22 CXA868 CGK → XMN May 22, 06:55 UTCMay 22, 08:25 UTC1h 30m
2026-05-21 CXA838 - May 21, 16:50 UTCMay 22, 03:20 UTC10h 30m
2026-05-21 CXA837 - May 21, 15:10 UTCMay 21, 15:25 UTC15m
2026-05-21 CXA854 BKK → XMN May 21, 05:25 UTCMay 21, 13:30 UTC8h 5m
2026-05-20 CXA892 DPS → XMN May 20, 12:35 UTCMay 21, 04:00 UTC15h 25m
2026-05-20 CXA892 DPS → XMN May 20, 07:40 UTCMay 21, 04:00 UTC20h 20m
2026-05-20 CXA892 DPS → XMN May 20, 05:35 UTCMay 21, 04:00 UTC22h 25m
2026-05-20 CXA853 XMN → BKK May 20, 01:40 UTCMay 20, 04:00 UTC2h 20m
2026-05-18 CXA892 DPS → XMN May 18, 05:20 UTCMay 18, 21:10 UTC15h 49m
2026-05-18 CXA853 XMN → BKK May 18, 01:30 UTCMay 18, 04:00 UTC2h 30m
2026-05-17 CXA868 CGK → XMN May 17, 06:50 UTCMay 18, 04:00 UTC21h 10m
2026-05-16 CXA844 - May 16, 19:15 UTCMay 17, 03:35 UTC8h 20m
2026-05-16 CXA843 - May 16, 14:55 UTCMay 16, 17:15 UTC2h 20m
2026-05-15 CXA868 CGK → XMN May 15, 06:45 UTCMay 15, 08:15 UTC1h 30m
2026-05-15 CXA867 XMN → CGK May 15, 05:05 UTCMay 15, 05:20 UTC15m
2026-05-15 CXA867 XMN → CGK May 15, 01:15 UTCMay 15, 03:35 UTC2h 20m
2026-05-14 CXA892 DPS → XMN May 14, 12:10 UTCMay 14, 22:20 UTC10h 10m
2026-05-12 CXA868 CGK → XMN May 12, 07:25 UTCMay 13, 06:45 UTC23h 20m
2026-05-12 CXA867 XMN → CGK May 12, 04:45 UTCMay 12, 05:05 UTC20m
2026-05-12 CXA867 XMN → CGK May 12, 02:45 UTCMay 12, 03:15 UTC30m
2026-05-11 CXA892 DPS → XMN May 11, 10:25 UTCMay 11, 21:10 UTC10h 45m
2026-05-11 CXA892 DPS → XMN May 11, 00:49 UTCMay 11, 21:10 UTC20h 21m
2026-05-09 CXA848 KUL → XMN May 9, 06:55 UTCMay 9, 07:15 UTC20m
2026-05-09 CXA847 XMN → KUL May 9, 05:00 UTCMay 9, 05:10 UTC10m
2026-05-09 CXA847 XMN → KUL May 9, 01:55 UTCMay 9, 02:10 UTC15m
2026-05-08 CXA8397 - May 8, 00:44 UTCMay 8, 05:00 UTC4h 15m
2026-05-07 CXA892 DPS → XMN May 7, 06:05 UTCMay 7, 21:05 UTC15h 0m
2026-05-07 CXA892 DPS → XMN May 7, 00:50 UTCMay 7, 21:05 UTC20h 15m
2026-05-06 CXA824 KUL → XMN May 6, 00:05 UTCMay 6, 06:30 UTC6h 25m
2026-05-05 CXA8715 NKG → KUL May 5, 02:45 UTCMay 5, 15:20 UTC12h 35m
2026-05-04 CXA8715 NKG → KUL May 4, 02:35 UTCMay 4, 15:45 UTC13h 10m
2026-05-03 CXA823 XMN → KUL May 3, 15:35 UTCMay 3, 16:05 UTC30m
2026-05-02 CXA892 DPS → XMN May 2, 05:35 UTCMay 2, 21:00 UTC15h 25m
2026-05-01 CXA848 KUL → XMN May 1, 08:35 UTCMay 1, 09:05 UTC30m
2026-04-30 CXA892 DPS → XMN Apr 30, 13:00 UTCMay 1, 06:30 UTC17h 30m
2026-04-30 CXA854 BKK → XMN Apr 30, 06:05 UTCApr 30, 08:15 UTC2h 10m
2026-04-30 CXA853 XMN → BKK Apr 30, 02:00 UTCApr 30, 04:35 UTC2h 35m
2026-04-29 CXA853 XMN → BKK Apr 29, 08:10 UTCApr 30, 04:35 UTC20h 25m
2026-04-29 CXA868 CGK → XMN Apr 29, 07:05 UTCApr 29, 07:24 UTC20m
2026-04-29 CXA867 XMN → CGK Apr 29, 05:15 UTCApr 29, 05:30 UTC15m
2026-04-29 CXA867 XMN → CGK Apr 29, 02:50 UTCApr 29, 03:45 UTC55m

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-225F page for operator, model, and routing details .

Mode-S 7820A3 frequently asked

What is Mode-S code 7820A3?
7820A3 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-225F.
Where is Mode-S 7820A3 registered?
Mode-S code 7820A3 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820A3 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820A3, octal 36020243, decimal 7,872,675.
What flights does 7820A3 operate?
Mode-S 7820A3 has broadcast 20 distinct callsigns, including CXA892, CXA867, CXA868, CXA853, CXA847.