sensors Mode-S transponder

7820D9

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32GY · AIRBUS A-330-200

Hex
7820D9
Octal
36020331
Decimal
7,872,729
Country
CN
Tail
B-32GY
Type
A332
No current signal · last broadcast 7h ago
Flights observed
85
Distinct callsigns
15
Country
CN
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 7820D9.

Country allocation

The ICAO 24-bit address 7820D9 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 15 distinct

Callsign Airline Flights Last seen
CBJ672 - 10 2026-04-28
CBJ689 - 9 2026-05-15
CBJ671 - 8 2026-04-27
CBJ654 - 8 2026-06-01
CBJ690 - 7 2026-05-11
CBJ686 - 7 2026-05-13
CBJ677 - 7 2026-05-14
CBJ651 - 6 2026-05-21
CBJ678 - 5 2026-05-14
CBJ685 - 4 2026-05-13
CBJ682 - 4 2026-05-29
CBJ681 - 4 2026-05-28
CBJ652 - 3 2026-06-02
CBJ653 - 2 2026-05-29
CBJ647 - 1 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CBJ652 - Jun 2, 12:20 UTCJun 2, 12:50 UTC30m
2026-06-01 CBJ654 - Jun 1, 17:30 UTCJun 2, 10:20 UTC16h 50m
2026-06-01 CBJ654 - Jun 1, 10:40 UTCJun 2, 10:15 UTC23h 35m
2026-05-31 CBJ654 - May 31, 14:15 UTCJun 1, 07:55 UTC17h 40m
2026-05-31 CBJ654 - May 31, 10:45 UTCJun 1, 07:55 UTC21h 10m
2026-05-31 CBJ654 - May 31, 09:30 UTCJun 1, 07:55 UTC22h 25m
2026-05-30 CBJ654 - May 30, 18:55 UTCMay 31, 16:10 UTC21h 15m
2026-05-30 CBJ647 - May 30, 15:55 UTCMay 30, 16:15 UTC20m
2026-05-29 CBJ682 - May 29, 23:55 UTCMay 30, 07:40 UTC7h 45m
2026-05-29 CBJ653 - May 29, 02:20 UTCMay 30, 01:25 UTC23h 5m
2026-05-29 CBJ654 - May 29, 01:25 UTCMay 30, 00:15 UTC22h 50m
2026-05-28 CBJ681 - May 28, 19:40 UTCMay 29, 03:25 UTC7h 45m
2026-05-27 CBJ682 - May 27, 20:20 UTCMay 28, 20:15 UTC23h 55m
2026-05-27 CBJ682 - May 27, 14:30 UTCMay 27, 21:30 UTC7h 0m
2026-05-24 CBJ654 - May 24, 02:45 UTCMay 24, 10:05 UTC7h 20m
2026-05-23 CBJ681 - May 23, 04:20 UTCMay 24, 03:45 UTC23h 25m
2026-05-22 CBJ653 - May 22, 11:55 UTCMay 23, 05:50 UTC17h 55m
2026-05-21 CBJ651 - May 21, 19:55 UTCMay 22, 10:00 UTC14h 5m
2026-05-20 CBJ681 - May 20, 22:20 UTCMay 21, 20:55 UTC22h 35m
2026-05-20 CBJ682 - May 20, 21:50 UTCMay 21, 20:10 UTC22h 20m
2026-05-20 CBJ652 - May 20, 07:50 UTCMay 20, 22:35 UTC14h 45m
2026-05-20 CBJ651 - May 20, 05:40 UTCMay 20, 06:00 UTC20m
2026-05-18 CBJ652 - May 18, 08:50 UTCMay 18, 09:10 UTC20m
2026-05-17 CBJ681 - May 17, 01:25 UTCMay 17, 08:20 UTC6h 55m
2026-05-15 CBJ689 - May 15, 15:40 UTCMay 16, 01:25 UTC9h 45m
2026-05-14 CBJ689 - May 14, 18:20 UTCMay 15, 17:30 UTC23h 9m
2026-05-14 CBJ678 - May 14, 17:25 UTCMay 15, 16:15 UTC22h 49m
2026-05-14 CBJ677 - May 14, 05:40 UTCMay 14, 11:10 UTC5h 30m
2026-05-13 CBJ686 - May 13, 15:05 UTCMay 14, 11:10 UTC20h 5m
2026-05-13 CBJ685 - May 13, 12:30 UTCMay 13, 13:15 UTC45m
2026-05-11 CBJ690 - May 11, 22:35 UTCMay 12, 04:45 UTC6h 11m
2026-05-11 CBJ690 - May 11, 08:20 UTCMay 12, 04:45 UTC20h 25m
2026-05-11 CBJ690 - May 11, 07:15 UTCMay 12, 04:45 UTC21h 31m
2026-05-09 CBJ677 - May 9, 22:20 UTCMay 10, 16:59 UTC18h 40m
2026-05-09 CBJ686 - May 9, 22:00 UTCMay 10, 16:59 UTC19h 0m
2026-05-09 CBJ651 DAC → DAC May 9, 12:15 UTCMay 9, 20:25 UTC8h 10m
2026-05-08 CBJ678 - May 8, 18:45 UTCMay 9, 10:20 UTC15h 35m
2026-05-08 CBJ677 - May 8, 06:35 UTCMay 8, 14:15 UTC7h 40m
2026-05-06 CBJ678 - May 6, 18:50 UTCMay 6, 20:15 UTC1h 25m
2026-05-06 CBJ677 - May 6, 08:55 UTCMay 6, 11:45 UTC2h 50m
2026-05-03 CBJ678 - May 3, 17:20 UTCMay 3, 22:30 UTC5h 10m
2026-05-02 CBJ686 - May 2, 18:10 UTCMay 3, 08:45 UTC14h 34m
2026-05-02 CBJ651 DAC → DAC May 2, 08:35 UTCMay 2, 16:00 UTC7h 25m
2026-05-01 CBJ690 - May 1, 12:35 UTCMay 2, 06:05 UTC17h 30m
2026-04-30 CBJ690 - Apr 30, 21:10 UTCMay 1, 20:15 UTC23h 5m
2026-04-30 CBJ689 - Apr 30, 18:20 UTCMay 1, 13:20 UTC19h 0m
2026-04-30 CBJ678 - Apr 30, 16:20 UTCMay 1, 13:20 UTC21h 0m
2026-04-30 CBJ677 - Apr 30, 09:30 UTCApr 30, 13:35 UTC4h 5m
2026-04-29 CBJ677 - Apr 29, 16:25 UTCApr 30, 13:35 UTC21h 10m
2026-04-29 CBJ677 - Apr 29, 15:30 UTCApr 30, 13:35 UTC22h 4m

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-32GY page for operator, model, and routing details .

Mode-S 7820D9 frequently asked

What is Mode-S code 7820D9?
7820D9 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32GY.
Where is Mode-S 7820D9 registered?
Mode-S code 7820D9 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820D9 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820D9, octal 36020331, decimal 7,872,729.
What flights does 7820D9 operate?
Mode-S 7820D9 has broadcast 15 distinct callsigns, including CBJ672, CBJ689, CBJ671, CBJ654, CBJ690.