sensors Mode-S transponder
7804AC
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6373 · AIRBUS A-320
- Hex
- 7804AC
- Octal
- 36002254
- Decimal
- 7,865,516
- Country
- CN
- Tail
- B-6373
- Type
- A320
- Flights observed
- 45
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 7804AC 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 |
|---|---|---|---|
| CES550 | China Eastern Airlines | 7 | 2026-07-22 |
| CES549 | China Eastern Airlines | 7 | 2026-07-22 |
| CES5050 | China Eastern Airlines | 4 | 2026-05-22 |
| CES6585 | China Eastern Airlines | 3 | 2026-07-19 |
| CES5049 | China Eastern Airlines | 3 | 2026-05-22 |
| CES6139 | - | 2 | 2026-06-13 |
| CES5398 | China Eastern Airlines | 2 | 2026-05-04 |
| CES6539 | China Eastern Airlines | 1 | 2026-07-24 |
| CES6140 | China Eastern Airlines | 1 | 2026-06-13 |
| CES5638 | China Eastern Airlines | 1 | 2026-04-23 |
| CES5637 | China Eastern Airlines | 1 | 2026-04-23 |
| CES5614 | China Eastern Airlines | 1 | 2026-05-19 |
| CES5346 | - | 1 | 2026-07-01 |
| CES5337 | - | 1 | 2026-07-01 |
| CES5246 | China Eastern Airlines | 1 | 2026-05-05 |
| CES5245 | China Eastern Airlines | 1 | 2026-05-05 |
| CES5053 | China Eastern Airlines | 1 | 2026-05-20 |
| CES268 | China Eastern Airlines | 1 | 2026-04-27 |
| CES267 | China Eastern Airlines | 1 | 2026-04-27 |
| CES2040 | China Eastern Airlines | 1 | 2026-07-23 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | CES2034 | ICN → TAO | Jul 25, 06:20 UTC | Jul 25, 06:50 UTC | 30m |
| 2026-07-25 | CES2033 | TAO → ICN | Jul 25, 04:35 UTC | Jul 25, 05:05 UTC | 30m |
| 2026-07-24 | CES6539 | TAO → JMU | Jul 24, 11:55 UTC | Jul 24, 15:05 UTC | 3h 10m |
| 2026-07-23 | CES2040 | ICN → TAO | Jul 23, 03:20 UTC | Jul 23, 03:35 UTC | 15m |
| 2026-07-23 | CES2039 | TAO → ICN | Jul 23, 01:40 UTC | Jul 23, 02:00 UTC | 20m |
| 2026-07-22 | CES550 | ICN → YNT | Jul 22, 03:30 UTC | Jul 22, 03:55 UTC | 25m |
| 2026-07-22 | CES549 | YNT → ICN | Jul 22, 01:10 UTC | Jul 22, 01:30 UTC | 20m |
| 2026-07-21 | CES550 | ICN → YNT | Jul 21, 04:10 UTC | Jul 21, 04:35 UTC | 25m |
| 2026-07-21 | CES549 | YNT → ICN | Jul 21, 01:00 UTC | Jul 21, 01:20 UTC | 20m |
| 2026-07-19 | CES6585 | YNT → HET | Jul 19, 23:30 UTC | Jul 19, 23:50 UTC | 20m |
| 2026-07-13 | CES550 | - | Jul 13, 03:05 UTC | Jul 13, 03:25 UTC | 20m |
| 2026-07-13 | CES549 | - | Jul 13, 01:05 UTC | Jul 13, 01:25 UTC | 20m |
| 2026-07-11 | CES550 | - | Jul 11, 03:25 UTC | Jul 11, 03:40 UTC | 15m |
| 2026-07-11 | CES549 | - | Jul 11, 01:15 UTC | Jul 11, 01:30 UTC | 15m |
| 2026-07-01 | CES5346 | - | Jul 1, 08:50 UTC | Jul 1, 09:00 UTC | 10m |
| 2026-07-01 | CES5337 | - | Jul 1, 07:15 UTC | Jul 1, 07:40 UTC | 25m |
| 2026-06-13 | CES6140 | ZHA → KHN | Jun 13, 10:35 UTC | Jun 13, 10:45 UTC | 10m |
| 2026-06-13 | CES6139 | - | Jun 13, 07:35 UTC | Jun 13, 07:55 UTC | 20m |
| 2026-06-08 | CES6139 | PKX → KHN | Jun 8, 08:00 UTC | Jun 8, 10:55 UTC | 2h 55m |
| 2026-05-22 | CES5050 | ICN → YNT | May 22, 22:05 UTC | May 22, 22:30 UTC | 25m |
| 2026-05-22 | CES5049 | YNT → ICN | May 22, 11:25 UTC | May 22, 11:45 UTC | 20m |
| 2026-05-20 | CES5053 | PVG → TAE | May 20, 02:35 UTC | May 20, 02:45 UTC | 10m |
| 2026-05-19 | CES5614 | HRB → PVG | May 19, 10:30 UTC | May 19, 11:10 UTC | 40m |
| 2026-05-10 | - | - | May 10, 00:00 UTC | May 10, 00:30 UTC | 30m |
| 2026-05-05 | CES5246 | XMN → PVG | May 5, 14:50 UTC | May 6, 10:50 UTC | 20h 0m |
| 2026-05-05 | CES5245 | PVG → XMN | May 5, 12:20 UTC | May 6, 10:50 UTC | 22h 30m |
| 2026-05-04 | CES5398 | SYX → PVG | May 4, 23:40 UTC | May 5, 15:01 UTC | 15h 20m |
| 2026-05-04 | CES5398 | SYX → PVG | May 4, 16:20 UTC | May 5, 15:01 UTC | 22h 41m |
| 2026-05-01 | CES6585 | YNT → HET | May 1, 06:05 UTC | May 1, 06:35 UTC | 30m |
| 2026-05-01 | CES550 | ICN → YNT | May 1, 03:15 UTC | May 1, 03:25 UTC | 10m |
| 2026-05-01 | CES549 | YNT → ICN | May 1, 01:05 UTC | May 1, 01:25 UTC | 20m |
| 2026-04-29 | CES5050 | ICN → YNT | Apr 29, 22:05 UTC | Apr 29, 22:20 UTC | 15m |
| 2026-04-29 | CES6585 | YNT → HET | Apr 29, 06:19 UTC | Apr 29, 06:49 UTC | 30m |
| 2026-04-29 | CES550 | ICN → YNT | Apr 29, 03:19 UTC | Apr 29, 03:30 UTC | 10m |
| 2026-04-29 | CES549 | YNT → ICN | Apr 29, 01:30 UTC | Apr 29, 01:45 UTC | 15m |
| 2026-04-28 | CES5050 | ICN → YNT | Apr 28, 22:45 UTC | Apr 28, 23:00 UTC | 15m |
| 2026-04-28 | CES5049 | YNT → ICN | Apr 28, 11:25 UTC | Apr 28, 11:35 UTC | 10m |
| 2026-04-28 | CES550 | ICN → YNT | Apr 28, 03:10 UTC | Apr 28, 03:25 UTC | 15m |
| 2026-04-28 | CES549 | YNT → ICN | Apr 28, 01:10 UTC | Apr 28, 01:25 UTC | 15m |
| 2026-04-27 | CES5050 | ICN → YNT | Apr 27, 22:05 UTC | Apr 27, 22:20 UTC | 15m |
| 2026-04-27 | CES5049 | YNT → ICN | Apr 27, 11:30 UTC | Apr 27, 11:45 UTC | 15m |
| 2026-04-27 | CES268 | ICN → YNT | Apr 27, 07:10 UTC | Apr 27, 07:35 UTC | 25m |
| 2026-04-27 | CES267 | YNT → ICN | Apr 27, 05:10 UTC | Apr 27, 05:30 UTC | 20m |
| 2026-04-23 | CES5638 | HDG → PVG | Apr 23, 07:15 UTC | Apr 23, 07:35 UTC | 20m |
| 2026-04-23 | CES5637 | PVG → HDG | Apr 23, 04:20 UTC | Apr 23, 04:35 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-6373 page for operator, model, and routing details .