Apparatus

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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 Jul 26, 14:35 UTC
Flights observed
191
Distinct callsigns
20
Country
CN
Last broadcast
Jul 26, 14:35 UTC

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 41 2026-07-25
CXA837 - 23 2026-07-24
CXA838 - 17 2026-07-24
CXA867 Xiamen Airlines 16 2026-07-26
CXA868 Xiamen Airlines 13 2026-07-26
CXA853 - 9 2026-06-16
CXA847 - 7 2026-06-22
CXA848 - 6 2026-06-22
CXA854 - 5 2026-06-16
CXA8032 Xiamen Airlines 5 2026-07-23
CXA856 Xiamen Airlines 4 2026-04-17
CXA8715 Xiamen Airlines 3 2026-06-30
CXA855 Xiamen Airlines 3 2026-04-16
CXA8380 - 3 2026-06-29
CXA824 - 3 2026-07-01
CXA8080 Xiamen Airlines 3 2026-07-24
CXA8842 Xiamen Airlines 2 2026-04-16
CXA8841 Xiamen Airlines 2 2026-04-16
CXA872 Xiamen Airlines 2 2026-04-26
CXA844 - 2 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CXA8517 XMN → SHA Jul 26, 14:10 UTCJul 26, 14:35 UTC25m
2026-07-26 CXA868 CGK → XMN Jul 26, 07:05 UTCJul 26, 08:30 UTC1h 25m
2026-07-26 CXA867 XMN → CGK Jul 26, 04:40 UTCJul 26, 05:00 UTC20m
2026-07-26 CXA867 XMN → CGK Jul 26, 00:25 UTCJul 26, 03:20 UTC2h 55m
2026-07-25 CXA892 DPS → XMN Jul 25, 05:05 UTCJul 25, 21:00 UTC15h 55m
2026-07-24 CXA838 - Jul 24, 17:20 UTCJul 25, 03:45 UTC10h 25m
2026-07-24 CXA837 - Jul 24, 15:40 UTCJul 24, 16:00 UTC20m
2026-07-24 CXA837 - Jul 24, 13:35 UTCJul 24, 14:20 UTC45m
2026-07-24 CXA8080 DLC → XMN Jul 24, 08:55 UTCJul 24, 09:05 UTC10m
2026-07-24 CXA8080 DLC → XMN Jul 24, 00:40 UTCJul 24, 07:50 UTC7h 10m
2026-07-23 CXA838 - Jul 23, 16:50 UTCJul 23, 21:15 UTC4h 25m
2026-07-23 CXA837 - Jul 23, 15:00 UTCJul 23, 15:20 UTC20m
2026-07-23 CXA837 - Jul 23, 11:05 UTCJul 23, 13:35 UTC2h 30m
2026-07-23 CXA8032 SHE → XMN Jul 23, 06:00 UTCJul 23, 08:10 UTC2h 10m
2026-07-22 CXA8828 ZUH → XMN Jul 22, 16:35 UTCJul 22, 16:50 UTC15m
2026-07-22 CXA8827 XMN → ZUH Jul 22, 14:55 UTCJul 22, 15:20 UTC25m
2026-07-21 CXA8674 CGK → CKG Jul 21, 18:15 UTCJul 21, 22:15 UTC4h 0m
2026-07-21 CXA8693 - Jul 21, 16:35 UTCJul 21, 16:50 UTC15m
2026-07-21 CXA8694 CGK → NKG Jul 21, 01:50 UTCJul 21, 15:10 UTC13h 20m
2026-07-20 CXA8673 CKG → CGK Jul 20, 20:05 UTCJul 21, 00:10 UTC4h 5m
2026-07-19 CXA838 - Jul 19, 17:00 UTCJul 19, 18:25 UTC1h 25m
2026-07-19 CXA837 - Jul 19, 15:00 UTCJul 19, 15:20 UTC20m
2026-07-19 CXA837 - Jul 19, 12:55 UTCJul 19, 13:35 UTC40m
2026-07-19 CXA8032 - Jul 19, 01:20 UTCJul 19, 08:10 UTC6h 50m
2026-07-16 CXA892 - Jul 16, 12:49 UTCJul 17, 08:20 UTC19h 30m
2026-07-16 CXA892 - Jul 16, 12:14 UTCJul 17, 08:20 UTC20h 5m
2026-07-16 CXA892 - Jul 16, 10:29 UTCJul 17, 08:20 UTC21h 50m
2026-07-15 CXA852 - Jul 15, 08:25 UTCJul 15, 08:45 UTC20m
2026-07-14 CXA838 - Jul 14, 18:25 UTCJul 15, 06:15 UTC11h 49m
2026-07-14 CXA837 - Jul 14, 16:45 UTCJul 14, 17:00 UTC15m
2026-07-14 CXA837 - Jul 14, 12:45 UTCJul 14, 15:15 UTC2h 30m
2026-07-13 CXA838 - Jul 13, 18:55 UTCJul 14, 15:15 UTC20h 20m
2026-07-13 CXA838 - Jul 13, 18:15 UTCJul 14, 15:15 UTC21h 0m
2026-07-13 CXA837 - Jul 13, 16:20 UTCJul 13, 16:30 UTC10m
2026-07-13 CXA837 - Jul 13, 14:10 UTCJul 13, 14:55 UTC45m
2026-07-13 CXA8080 - Jul 13, 05:55 UTCJul 13, 06:45 UTC50m
2026-07-12 CXA8511 - Jul 12, 01:50 UTCJul 12, 02:25 UTC35m
2026-07-11 CXA868 - Jul 11, 07:35 UTCJul 11, 08:30 UTC55m
2026-07-11 CXA867 - Jul 11, 04:45 UTCJul 11, 05:01 UTC15m
2026-07-10 CXA838 - Jul 10, 16:55 UTCJul 11, 03:20 UTC10h 25m
2026-07-09 CXA837 - Jul 9, 18:50 UTCJul 10, 13:50 UTC19h 0m
2026-07-09 CXA838 - Jul 9, 17:15 UTCJul 10, 13:50 UTC20h 35m
2026-07-09 CXA837 - Jul 9, 15:15 UTCJul 9, 15:30 UTC15m
2026-07-08 CXA892 - Jul 8, 18:50 UTCJul 9, 13:50 UTC19h 0m
2026-07-08 CXA892 - Jul 8, 18:20 UTCJul 9, 13:50 UTC19h 30m
2026-07-08 CXA892 - Jul 8, 12:25 UTCJul 9, 02:25 UTC14h 0m
2026-07-08 CXA892 - Jul 8, 05:50 UTCJul 9, 02:25 UTC20h 35m
2026-07-07 CXA8378 - Jul 7, 08:35 UTCJul 7, 08:40 UTC5m
2026-07-07 CXA8377 - Jul 7, 03:20 UTCJul 7, 03:30 UTC10m
2026-07-06 CXA8317 - Jul 6, 12:00 UTCJul 6, 12:10 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-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 Jul 26, 14:35 UTC.
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, CXA837, CXA838, CXA867, CXA868.