sensors Mode-S transponder
7818AD
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-30DT · AIRBUS A-320neo
- Hex
- 7818AD
- Octal
- 36014255
- Decimal
- 7,870,637
- Country
- CN
- Tail
- B-30DT
- Type
- A20N
- Flights observed
- 28
- Distinct callsigns
- 17
- Country
- CN
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 7818AD 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 17 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES857 | China Eastern Airlines | 3 | 2026-05-28 |
| CES5095 | - | 3 | 2026-06-19 |
| CES858 | China Eastern Airlines | 2 | 2026-05-28 |
| CES5096 | - | 2 | 2026-06-20 |
| CES268 | - | 2 | 2026-06-23 |
| CES267 | - | 2 | 2026-06-23 |
| CES2034 | - | 2 | 2026-06-17 |
| CES2018 | China Eastern Airlines | 2 | 2026-06-07 |
| CES2017 | China Eastern Airlines | 2 | 2026-06-07 |
| CES870 | - | 1 | 2026-06-15 |
| CES6903 | China Eastern Airlines | 1 | 2026-05-06 |
| CES6491 | China Eastern Airlines | 1 | 2026-04-25 |
| CES5244 | China Eastern Airlines | 1 | 2026-05-05 |
| CES5243 | China Eastern Airlines | 1 | 2026-05-05 |
| CES2400 | - | 1 | 2026-05-18 |
| CES2040 | China Eastern Airlines | 1 | 2026-05-10 |
| CES2033 | - | 1 | 2026-06-17 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-23 | CES268 | - | Jun 23, 07:09 UTC | Jun 23, 07:25 UTC | 15m |
| 2026-06-23 | CES267 | - | Jun 23, 05:29 UTC | Jun 23, 05:54 UTC | 25m |
| 2026-06-22 | CES268 | - | Jun 22, 07:04 UTC | Jun 22, 07:25 UTC | 20m |
| 2026-06-22 | CES267 | - | Jun 22, 05:29 UTC | Jun 22, 05:49 UTC | 20m |
| 2026-06-20 | CES5096 | - | Jun 20, 07:34 UTC | Jun 20, 11:30 UTC | 3h 55m |
| 2026-06-19 | CES5095 | - | Jun 19, 14:49 UTC | Jun 20, 05:44 UTC | 14h 55m |
| 2026-06-19 | CES5095 | - | Jun 19, 07:25 UTC | Jun 20, 05:44 UTC | 22h 20m |
| 2026-06-19 | CES5095 | - | Jun 19, 05:19 UTC | Jun 19, 05:40 UTC | 20m |
| 2026-06-17 | CES2034 | - | Jun 17, 04:45 UTC | Jun 17, 05:00 UTC | 15m |
| 2026-06-17 | CES2033 | - | Jun 17, 02:40 UTC | Jun 17, 02:55 UTC | 15m |
| 2026-06-16 | CES5096 | - | Jun 16, 07:55 UTC | Jun 16, 11:45 UTC | 3h 50m |
| 2026-06-15 | CES870 | - | Jun 15, 15:04 UTC | Jun 16, 05:59 UTC | 14h 55m |
| 2026-06-07 | CES2018 | ICN → WEH | Jun 7, 05:25 UTC | Jun 7, 05:45 UTC | 20m |
| 2026-06-07 | CES2017 | WEH → ICN | Jun 7, 03:20 UTC | Jun 7, 03:45 UTC | 25m |
| 2026-06-06 | CES2018 | ICN → WEH | Jun 6, 05:30 UTC | Jun 6, 05:45 UTC | 15m |
| 2026-06-06 | CES2017 | WEH → ICN | Jun 6, 03:25 UTC | Jun 6, 03:50 UTC | 25m |
| 2026-05-28 | CES858 | KUL → KMG | May 28, 20:20 UTC | May 28, 23:20 UTC | 3h 0m |
| 2026-05-28 | CES857 | KMG → KUL | May 28, 18:40 UTC | May 28, 18:55 UTC | 15m |
| 2026-05-28 | CES857 | KMG → KUL | May 28, 16:00 UTC | May 28, 16:30 UTC | 30m |
| 2026-05-18 | CES2400 | - | May 18, 10:55 UTC | May 18, 11:10 UTC | 15m |
| 2026-05-14 | CES858 | KUL → KMG | May 14, 20:20 UTC | May 15, 10:50 UTC | 14h 30m |
| 2026-05-14 | CES857 | KMG → KUL | May 14, 18:30 UTC | May 14, 18:40 UTC | 10m |
| 2026-05-10 | CES2040 | ICN → TAO | May 10, 03:14 UTC | May 10, 03:25 UTC | 10m |
| 2026-05-09 | CES2034 | ICN → TAO | May 9, 05:00 UTC | May 9, 05:25 UTC | 25m |
| 2026-05-06 | CES6903 | PVG → KWL | May 6, 00:35 UTC | May 6, 00:55 UTC | 20m |
| 2026-05-05 | CES5244 | SZX → NGB | May 5, 10:10 UTC | May 5, 10:20 UTC | 10m |
| 2026-05-05 | CES5243 | NGB → SZX | May 5, 08:00 UTC | May 5, 08:15 UTC | 15m |
| 2026-04-25 | CES6491 | TAO → HET | Apr 25, 09:10 UTC | Apr 25, 09:25 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-30DT page for operator, model, and routing details .