sensors Mode-S transponder
7817F2
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-30C3 · AIRBUS A-320neo
- Hex
- 7817F2
- Octal
- 36013762
- Decimal
- 7,870,450
- Country
- CN
- Tail
- B-30C3
- Type
- A20N
- Flights observed
- 22
- Distinct callsigns
- 13
- Country
- CN
- Last broadcast
- 22d ago
Last known position
Country allocation
The ICAO 24-bit address 7817F2 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES6340 | China Eastern Airlines | 5 | 2026-04-30 |
| CES2962 | China Eastern Airlines | 3 | 2026-05-06 |
| CES2961 | China Eastern Airlines | 3 | 2026-05-06 |
| CES2951 | China Eastern Airlines | 2 | 2026-05-08 |
| CES6329 | China Eastern Airlines | 1 | 2026-04-27 |
| CES2970 | China Eastern Airlines | 1 | 2026-05-03 |
| CES2969 | China Eastern Airlines | 1 | 2026-05-03 |
| CES2946 | China Eastern Airlines | 1 | 2026-04-15 |
| CES2945 | China Eastern Airlines | 1 | 2026-04-15 |
| CES2938 | China Eastern Airlines | 1 | 2026-04-19 |
| CES2937 | China Eastern Airlines | 1 | 2026-04-19 |
| CES2894 | China Eastern Airlines | 1 | 2026-04-14 |
| CES2173 | China Eastern Airlines | 1 | 2026-04-29 |
Recent flights last 22
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-08 | CES2951 | NKG → ZUH | May 8, 04:49 UTC | May 8, 05:00 UTC | 10m |
| 2026-05-07 | CES2951 | NKG → ZUH | May 7, 04:40 UTC | May 7, 04:50 UTC | 10m |
| 2026-05-06 | CES2962 | BKK → NKG | May 6, 09:15 UTC | May 6, 10:15 UTC | 1h 0m |
| 2026-05-06 | CES2961 | WUX → MFM | May 6, 07:25 UTC | May 6, 07:40 UTC | 15m |
| 2026-05-03 | CES2970 | KUL → NKG | May 3, 17:10 UTC | May 4, 05:40 UTC | 12h 30m |
| 2026-05-03 | CES2969 | NKG → KUL | May 3, 11:50 UTC | May 3, 15:50 UTC | 4h 0m |
| 2026-04-30 | CES6340 | SHE → SHA | Apr 30, 00:45 UTC | Apr 30, 14:40 UTC | 13h 55m |
| 2026-04-29 | CES2173 | XIY → HRB | Apr 29, 06:05 UTC | Apr 30, 00:50 UTC | 18h 45m |
| 2026-04-28 | CES6340 | SHE → SHA | Apr 28, 14:50 UTC | Apr 29, 06:19 UTC | 15h 30m |
| 2026-04-28 | CES6340 | SHE → SHA | Apr 28, 00:35 UTC | Apr 28, 15:05 UTC | 14h 30m |
| 2026-04-27 | CES6340 | SHE → SHA | Apr 27, 15:35 UTC | Apr 28, 00:35 UTC | 9h 0m |
| 2026-04-27 | CES6329 | PVG → ZHA | Apr 27, 00:35 UTC | Apr 27, 00:45 UTC | 10m |
| 2026-04-26 | CES6340 | SHE → SHA | Apr 26, 00:25 UTC | Apr 26, 14:55 UTC | 14h 30m |
| 2026-04-25 | CES2962 | BKK → NKG | Apr 25, 09:10 UTC | Apr 25, 09:30 UTC | 20m |
| 2026-04-25 | CES2961 | WUX → MFM | Apr 25, 07:35 UTC | Apr 25, 07:55 UTC | 20m |
| 2026-04-22 | CES2962 | BKK → NKG | Apr 22, 09:05 UTC | Apr 22, 10:05 UTC | 1h 0m |
| 2026-04-22 | CES2961 | WUX → MFM | Apr 22, 07:30 UTC | Apr 22, 08:01 UTC | 30m |
| 2026-04-19 | CES2938 | SZX → WUX | Apr 19, 12:55 UTC | Apr 19, 13:05 UTC | 10m |
| 2026-04-19 | CES2937 | WUX → SZX | Apr 19, 10:15 UTC | Apr 19, 10:35 UTC | 20m |
| 2026-04-15 | CES2946 | KHH → NKG | Apr 15, 03:55 UTC | Apr 15, 04:40 UTC | 45m |
| 2026-04-15 | CES2945 | NKG → KHH | Apr 15, 01:30 UTC | Apr 15, 02:20 UTC | 50m |
| 2026-04-14 | CES2894 | SYX → NKG | Apr 14, 05:50 UTC | Apr 14, 06:05 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-30C3 page for operator, model, and routing details .