Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
Broadcasting now · 33,000 ft
Flights observed
159
Distinct callsigns
20
Country
CN
Last broadcast
1h ago

Current position

7820A3 is currently broadcasting. Map zoomed to live position.

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 - 37 2026-07-08
CXA837 - 15 2026-07-13
CXA867 - 14 2026-07-11
CXA868 - 12 2026-07-11
CXA838 - 12 2026-07-13
CXA853 - 9 2026-06-16
CXA847 - 7 2026-06-22
CXA848 - 6 2026-06-22
CXA854 - 5 2026-06-16
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
CXA8032 - 3 2026-07-03
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
CXA843 - 2 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CXA838 - Jul 13, 18:15 UTCJul 14, 12:45 UTC18h 30m
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
2026-07-05 CXA892 - Jul 5, 10:55 UTCJul 5, 21:15 UTC10h 20m
2026-07-04 CXA892 - Jul 4, 12:50 UTCJul 5, 08:35 UTC19h 45m
2026-07-04 CXA892 - Jul 4, 12:25 UTCJul 5, 08:35 UTC20h 10m
2026-07-04 CXA892 - Jul 4, 10:35 UTCJul 5, 08:35 UTC22h 0m
2026-07-03 CXA892 - Jul 3, 22:50 UTCJul 4, 21:10 UTC22h 20m
2026-07-03 CXA892 - Jul 3, 20:50 UTCJul 4, 20:45 UTC23h 55m
2026-07-03 CXA892 - Jul 3, 20:15 UTCJul 4, 18:45 UTC22h 30m
2026-07-03 CXA892 - Jul 3, 14:50 UTCJul 4, 13:10 UTC22h 20m
2026-07-03 CXA892 - Jul 3, 13:00 UTCJul 4, 12:45 UTC23h 45m
2026-07-03 CXA8032 - Jul 3, 10:20 UTCJul 3, 10:50 UTC30m
2026-07-02 CXA838 - Jul 2, 16:55 UTCJul 2, 21:20 UTC4h 25m
2026-07-02 CXA837 - Jul 2, 15:00 UTCJul 2, 15:15 UTC15m
2026-07-02 CXA837 - Jul 2, 11:00 UTCJul 2, 13:30 UTC2h 30m
2026-07-01 CXA837 - Jul 1, 13:10 UTCJul 2, 12:45 UTC23h 35m
2026-07-01 CXA834 - Jul 1, 10:55 UTCJul 1, 11:15 UTC20m
2026-07-01 CXA833 - Jul 1, 09:00 UTCJul 1, 09:20 UTC20m
2026-07-01 CXA824 - Jul 1, 00:05 UTCJul 1, 07:50 UTC7h 45m
2026-06-30 CXA8715 NKG → KUL Jun 30, 15:05 UTCJun 30, 15:25 UTC20m
2026-06-29 CXA844 - Jun 29, 19:20 UTCJun 29, 21:39 UTC2h 20m
2026-06-29 CXA843 - Jun 29, 15:09 UTCJun 29, 17:24 UTC2h 15m
2026-06-29 CXA8380 - Jun 29, 04:20 UTCJun 29, 04:30 UTC10m
2026-06-28 CXA868 - Jun 28, 06:49 UTCJun 28, 08:25 UTC1h 35m
2026-06-28 CXA867 - Jun 28, 04:50 UTCJun 28, 05:09 UTC20m
2026-06-28 CXA867 - Jun 28, 00:45 UTCJun 28, 03:25 UTC2h 40m
2026-06-22 CXA848 - Jun 22, 06:54 UTCJun 22, 13:59 UTC7h 5m
2026-06-22 CXA847 - Jun 22, 02:10 UTCJun 22, 05:24 UTC3h 15m
2026-06-21 CXA838 - Jun 21, 16:54 UTCJun 21, 21:14 UTC4h 20m
2026-06-21 CXA837 - Jun 21, 10:40 UTCJun 21, 13:24 UTC2h 45m
2026-06-21 CXA8032 - Jun 21, 00:59 UTCJun 21, 07:59 UTC7h 0m
2026-06-17 CXA848 - Jun 17, 07:35 UTCJun 17, 08:00 UTC25m
2026-06-17 CXA847 - Jun 17, 05:10 UTCJun 17, 05:30 UTC20m
2026-06-16 CXA838 - Jun 16, 16:55 UTCJun 17, 02:50 UTC9h 56m

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?
Yes. Mode-S 7820A3 is currently airborne.
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, CXA867, CXA868, CXA838.