sensors Mode-S transponder
7819D3
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-230E · AIRBUS A-320neo
- Hex
- 7819D3
- Octal
- 36014723
- Decimal
- 7,870,931
- Country
- CN
- Tail
- B-230E
- Type
- A20N
- Flights observed
- 28
- Distinct callsigns
- 6
- Country
- CN
- Last broadcast
- 9d ago
Last known position
Country allocation
The ICAO 24-bit address 7819D3 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 6 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CDC8007 | Zhejiang Loong Airlines | 10 | 2026-07-21 |
| CDC8015 | - | 6 | 2026-07-12 |
| CDC8008 | Zhejiang Loong Airlines | 5 | 2026-07-20 |
| CDC8016 | - | 4 | 2026-07-05 |
| CDC6054 | Zhejiang Loong Airlines | 2 | 2026-07-23 |
| CDC6053 | - | 1 | 2026-06-21 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-23 | CDC6054 | ZUH → HGH | Jul 23, 02:30 UTC | Jul 23, 02:45 UTC | 15m |
| 2026-07-21 | CDC8007 | HGH → HKG | Jul 21, 11:55 UTC | Jul 22, 04:25 UTC | 16h 30m |
| 2026-07-21 | CDC8007 | HGH → HKG | Jul 21, 06:50 UTC | Jul 22, 04:25 UTC | 21h 35m |
| 2026-07-21 | CDC8007 | HGH → HKG | Jul 21, 06:30 UTC | Jul 22, 04:25 UTC | 21h 55m |
| 2026-07-21 | CDC8007 | HGH → HKG | Jul 21, 03:35 UTC | Jul 21, 04:20 UTC | 45m |
| 2026-07-20 | CDC8008 | HKG → HGH | Jul 20, 06:50 UTC | Jul 21, 04:20 UTC | 21h 29m |
| 2026-07-19 | CDC8007 | HGH → HKG | Jul 19, 15:25 UTC | Jul 20, 04:35 UTC | 13h 10m |
| 2026-07-19 | CDC8007 | HGH → HKG | Jul 19, 06:50 UTC | Jul 20, 04:35 UTC | 21h 45m |
| 2026-07-19 | CDC8008 | HKG → HGH | Jul 19, 06:10 UTC | Jul 20, 04:35 UTC | 22h 25m |
| 2026-07-19 | CDC8007 | - | Jul 19, 04:00 UTC | Jul 19, 04:15 UTC | 15m |
| 2026-07-12 | CDC8015 | - | Jul 12, 06:15 UTC | Jul 12, 06:25 UTC | 10m |
| 2026-07-05 | CDC8016 | - | Jul 5, 10:20 UTC | Jul 5, 10:35 UTC | 15m |
| 2026-07-05 | CDC8015 | - | Jul 5, 08:20 UTC | Jul 5, 08:40 UTC | 20m |
| 2026-06-30 | CDC8008 | - | Jun 30, 06:20 UTC | Jun 30, 15:15 UTC | 8h 55m |
| 2026-06-30 | CDC8007 | - | Jun 30, 04:05 UTC | Jun 30, 04:25 UTC | 20m |
| 2026-06-29 | CDC8008 | - | Jun 29, 06:24 UTC | Jun 29, 06:50 UTC | 25m |
| 2026-06-29 | CDC8007 | - | Jun 29, 04:00 UTC | Jun 29, 04:09 UTC | 10m |
| 2026-06-28 | CDC8008 | - | Jun 28, 08:09 UTC | Jun 28, 17:10 UTC | 9h 0m |
| 2026-06-28 | CDC8007 | - | Jun 28, 04:05 UTC | Jun 28, 04:20 UTC | 15m |
| 2026-06-21 | CDC6054 | - | Jun 21, 02:04 UTC | Jun 21, 02:20 UTC | 15m |
| 2026-06-21 | CDC6053 | - | Jun 21, 00:04 UTC | Jun 21, 00:25 UTC | 20m |
| 2026-05-10 | CDC8016 | - | May 10, 09:30 UTC | May 10, 09:45 UTC | 15m |
| 2026-05-10 | CDC8015 | - | May 10, 06:55 UTC | May 10, 07:04 UTC | 10m |
| 2026-05-03 | CDC8015 | - | May 3, 07:10 UTC | May 3, 07:40 UTC | 30m |
| 2026-04-26 | CDC8016 | - | Apr 26, 08:15 UTC | Apr 26, 08:25 UTC | 10m |
| 2026-04-26 | CDC8015 | - | Apr 26, 06:15 UTC | Apr 26, 06:35 UTC | 20m |
| 2026-04-19 | CDC8016 | - | Apr 19, 09:45 UTC | Apr 19, 09:55 UTC | 10m |
| 2026-04-19 | CDC8015 | - | Apr 19, 07:50 UTC | Apr 19, 08:05 UTC | 15m |
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-230E page for operator, model, and routing details .