sensors Mode-S transponder

7820E8

ICAO 24-bit transponder address · allocated to China

Currently assigned to B-32H1 · AIRBUS A-321neo

Hex
7820E8
Octal
36020350
Decimal
7,872,744
Country
CN
Tail
B-32H1
Type
A21N
No current signal · last broadcast 13h ago
Flights observed
6
Distinct callsigns
4
Country
CN
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 7820E8.

Country allocation

The ICAO 24-bit address 7820E8 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 4 distinct

Callsign Airline Flights Last seen
CDC8200 - 2 2026-04-14
CDC8199 - 2 2026-04-14
CDC8900 Zhejiang Loong Airlines 1 2026-04-13
CDC8899 Zhejiang Loong Airlines 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 CDC8200 - Apr 14, 09:40 UTCApr 14, 09:50 UTC10m
2026-04-14 CDC8199 - Apr 14, 06:15 UTCApr 14, 06:35 UTC20m
2026-04-13 CDC8900 HGH → SZX Apr 13, 14:40 UTCApr 13, 15:40 UTC1h 0m
2026-04-13 CDC8200 - Apr 13, 10:15 UTCApr 13, 10:30 UTC15m
2026-04-13 CDC8199 - Apr 13, 06:25 UTCApr 13, 06:35 UTC10m
2026-04-13 CDC8899 SZX → HGH Apr 13, 02:00 UTCApr 13, 02:10 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-32H1 page for operator, model, and routing details .

Mode-S 7820E8 frequently asked

What is Mode-S code 7820E8?
7820E8 is an ICAO 24-bit transponder address. Allocated to China. Assigned to B-32H1.
Where is Mode-S 7820E8 registered?
Mode-S code 7820E8 is allocated to China (CN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7820E8 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7820E8, octal 36020350, decimal 7,872,744.
What flights does 7820E8 operate?
Mode-S 7820E8 has broadcast 4 distinct callsigns, including CDC8200, CDC8199, CDC8900, CDC8899.