sensors Mode-S transponder
7815FE
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-306A · AIRBUS A-320neo
- Hex
- 7815FE
- Octal
- 36012776
- Decimal
- 7,869,950
- Country
- CN
- Tail
- B-306A
- Type
- A20N
- Flights observed
- 43
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 5d ago
Last known position
Country allocation
The ICAO 24-bit address 7815FE 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 |
|---|---|---|---|
| CDC8021 | - | 5 | 2026-07-02 |
| CDC8565 | - | 4 | 2026-07-18 |
| CDC8656 | - | 3 | 2026-07-22 |
| CDC8022 | - | 3 | 2026-07-02 |
| CDC6076 | - | 3 | 2026-07-10 |
| CDC8874 | - | 2 | 2026-07-14 |
| CDC8870 | - | 2 | 2026-07-15 |
| CDC8655 | - | 2 | 2026-07-22 |
| CDC8566 | - | 2 | 2026-05-28 |
| CDC8241 | - | 2 | 2026-06-27 |
| CDC8054 | Zhejiang Loong Airlines | 2 | 2026-07-25 |
| CDC8053 | Zhejiang Loong Airlines | 2 | 2026-07-24 |
| CDC6075 | - | 2 | 2026-07-10 |
| CDC8866 | Zhejiang Loong Airlines | 1 | 2026-07-26 |
| CDC8706 | Zhejiang Loong Airlines | 1 | 2026-04-28 |
| CDC8540 | Zhejiang Loong Airlines | 1 | 2026-05-02 |
| CDC8539 | Zhejiang Loong Airlines | 1 | 2026-04-29 |
| CDC8242 | - | 1 | 2026-06-25 |
| CDC8168 | Zhejiang Loong Airlines | 1 | 2026-05-22 |
| CDC8095 | Zhejiang Loong Airlines | 1 | 2026-06-03 |
Recent flights last 43
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CDC8866 | SHE → HGH | Jul 26, 14:35 UTC | Jul 26, 15:15 UTC | 40m |
| 2026-07-25 | CDC8054 | HKG → HGH | Jul 25, 11:25 UTC | Jul 25, 12:30 UTC | 1h 5m |
| 2026-07-24 | CDC8053 | HGH → HKG | Jul 24, 23:40 UTC | Jul 25, 09:30 UTC | 9h 50m |
| 2026-07-22 | CDC8656 | - | Jul 22, 13:00 UTC | Jul 22, 23:55 UTC | 10h 55m |
| 2026-07-22 | CDC8655 | - | Jul 22, 01:40 UTC | Jul 22, 23:55 UTC | 22h 15m |
| 2026-07-21 | CDC8656 | - | Jul 21, 14:45 UTC | Jul 22, 13:20 UTC | 22h 35m |
| 2026-07-21 | CDC8656 | - | Jul 21, 07:20 UTC | Jul 21, 07:35 UTC | 15m |
| 2026-07-20 | CDC8655 | - | Jul 20, 23:35 UTC | Jul 21, 06:05 UTC | 6h 30m |
| 2026-07-18 | CDC8565 | - | Jul 18, 02:45 UTC | Jul 18, 06:20 UTC | 3h 36m |
| 2026-07-15 | CDC8870 | - | Jul 15, 12:55 UTC | Jul 15, 13:05 UTC | 10m |
| 2026-07-14 | CDC8870 | - | Jul 14, 15:10 UTC | Jul 15, 13:05 UTC | 21h 54m |
| 2026-07-14 | CDC8874 | - | Jul 14, 11:05 UTC | Jul 14, 11:20 UTC | 15m |
| 2026-07-10 | CDC6076 | - | Jul 10, 08:20 UTC | Jul 10, 08:45 UTC | 25m |
| 2026-07-10 | CDC6075 | - | Jul 10, 02:30 UTC | Jul 10, 06:05 UTC | 3h 35m |
| 2026-07-02 | CDC8022 | - | Jul 2, 10:45 UTC | Jul 2, 13:10 UTC | 2h 25m |
| 2026-07-02 | CDC8021 | - | Jul 2, 06:55 UTC | Jul 2, 09:05 UTC | 2h 10m |
| 2026-06-30 | CDC8054 | - | Jun 30, 10:05 UTC | Jun 30, 10:25 UTC | 20m |
| 2026-06-30 | CDC8053 | - | Jun 30, 07:55 UTC | Jun 30, 08:15 UTC | 20m |
| 2026-06-29 | CDC8022 | - | Jun 29, 10:40 UTC | Jun 30, 03:05 UTC | 16h 25m |
| 2026-06-29 | CDC8021 | - | Jun 29, 08:50 UTC | Jun 29, 09:20 UTC | 30m |
| 2026-06-29 | CDC8021 | - | Jun 29, 06:59 UTC | Jun 29, 07:59 UTC | 1h 0m |
| 2026-06-28 | CDC8021 | - | Jun 28, 12:35 UTC | Jun 29, 07:59 UTC | 19h 25m |
| 2026-06-27 | CDC8241 | - | Jun 27, 00:14 UTC | Jun 27, 11:50 UTC | 11h 35m |
| 2026-06-26 | CDC8874 | - | Jun 26, 11:09 UTC | Jun 26, 11:24 UTC | 15m |
| 2026-06-25 | CDC8242 | - | Jun 25, 07:59 UTC | Jun 25, 11:54 UTC | 3h 55m |
| 2026-06-25 | CDC8241 | - | Jun 25, 00:09 UTC | Jun 25, 05:00 UTC | 4h 50m |
| 2026-06-22 | CDC6076 | - | Jun 22, 12:19 UTC | Jun 22, 12:30 UTC | 10m |
| 2026-06-22 | CDC6076 | - | Jun 22, 08:25 UTC | Jun 22, 08:50 UTC | 25m |
| 2026-06-22 | CDC6075 | - | Jun 22, 02:54 UTC | Jun 22, 06:00 UTC | 3h 5m |
| 2026-06-03 | CDC8095 | HGH → SYX | Jun 3, 23:40 UTC | Jun 4, 03:10 UTC | 3h 30m |
| 2026-06-01 | CDC8565 | - | Jun 1, 01:15 UTC | Jun 1, 05:15 UTC | 4h 0m |
| 2026-05-28 | CDC8565 | - | May 28, 05:45 UTC | May 29, 01:15 UTC | 19h 30m |
| 2026-05-28 | CDC8566 | - | May 28, 02:30 UTC | May 29, 01:15 UTC | 22h 45m |
| 2026-05-25 | CDC8565 | - | May 25, 05:05 UTC | May 26, 02:44 UTC | 21h 40m |
| 2026-05-24 | CDC8566 | - | May 24, 01:25 UTC | May 24, 05:10 UTC | 3h 45m |
| 2026-05-23 | CDC6054 | ZUH → HGH | May 23, 02:40 UTC | May 23, 02:55 UTC | 15m |
| 2026-05-22 | CDC6053 | HGH → ZUH | May 22, 23:55 UTC | May 23, 00:15 UTC | 20m |
| 2026-05-22 | CDC8168 | HRB → HGH | May 22, 07:05 UTC | May 22, 07:55 UTC | 50m |
| 2026-05-02 | CDC8540 | WUH → CGQ | May 2, 12:00 UTC | May 2, 12:15 UTC | 15m |
| 2026-04-29 | CDC8539 | XIY → HRB | Apr 29, 23:35 UTC | Apr 29, 23:50 UTC | 15m |
| 2026-04-28 | CDC8706 | VTE → HGH | Apr 28, 11:35 UTC | Apr 28, 11:45 UTC | 10m |
| 2026-04-24 | CDC8022 | BKK → HGH | Apr 24, 11:20 UTC | Apr 24, 13:30 UTC | 2h 10m |
| 2026-04-24 | CDC8021 | HGH → BKK | Apr 24, 07:10 UTC | Apr 24, 10:00 UTC | 2h 50m |
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-306A page for operator, model, and routing details .