sensors Mode-S transponder
7804AF
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5245 · BOEING 737-700
- Hex
- 7804AF
- Octal
- 36002257
- Decimal
- 7,865,519
- Country
- CN
- Tail
- B-5245
- Type
- B737
- Flights observed
- 35
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- 9h ago
Last known position
Country allocation
The ICAO 24-bit address 7804AF 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CES9728 | - | 7 | 2026-07-19 |
| CES9727 | China Eastern Airlines | 4 | 2026-07-22 |
| CES9615 | - | 3 | 2026-07-14 |
| CES5734 | - | 3 | 2026-06-29 |
| CES9616 | China Eastern Airlines | 2 | 2026-06-10 |
| CES7634 | - | 2 | 2026-07-12 |
| CES5474 | - | 2 | 2026-07-07 |
| CES9742 | - | 1 | 2026-06-20 |
| CES9710 | China Eastern Airlines | 1 | 2026-06-23 |
| CES9620 | - | 1 | 2026-07-16 |
| CES9619 | - | 1 | 2026-07-16 |
| CES7614 | China Eastern Airlines | 1 | 2026-06-16 |
| CES7607 | - | 1 | 2026-07-11 |
| CES5758 | China Eastern Airlines | 1 | 2026-04-16 |
| CES5742 | - | 1 | 2026-07-10 |
| CES5718 | - | 1 | 2026-07-09 |
| CES5714 | China Eastern Airlines | 1 | 2026-07-05 |
| BES9616 | - | 1 | 2026-07-15 |
Recent flights last 35
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-22 | CES9727 | KMG → PVG | Jul 22, 04:10 UTC | Jul 22, 04:30 UTC | 20m |
| 2026-07-19 | CES9728 | - | Jul 19, 09:05 UTC | Jul 19, 09:15 UTC | 10m |
| 2026-07-19 | CES9727 | KMG → PVG | Jul 19, 07:25 UTC | Jul 19, 07:35 UTC | 10m |
| 2026-07-16 | CES9620 | - | Jul 16, 09:15 UTC | Jul 16, 10:00 UTC | 45m |
| 2026-07-16 | CES9619 | - | Jul 16, 07:10 UTC | Jul 16, 08:05 UTC | 55m |
| 2026-07-15 | BES9616 | - | Jul 15, 05:40 UTC | Jul 15, 07:05 UTC | 1h 25m |
| 2026-07-14 | CES9615 | - | Jul 14, 11:20 UTC | Jul 15, 04:25 UTC | 17h 4m |
| 2026-07-14 | CES9615 | - | Jul 14, 08:55 UTC | Jul 15, 04:25 UTC | 19h 29m |
| 2026-07-12 | CES7634 | - | Jul 12, 02:20 UTC | Jul 12, 02:30 UTC | 10m |
| 2026-07-11 | CES7607 | - | Jul 11, 13:10 UTC | Jul 11, 13:20 UTC | 10m |
| 2026-07-10 | CES5742 | - | Jul 10, 10:00 UTC | Jul 11, 00:35 UTC | 14h 35m |
| 2026-07-09 | CES5718 | - | Jul 9, 11:10 UTC | Jul 9, 11:25 UTC | 15m |
| 2026-07-07 | CES5474 | - | Jul 7, 08:20 UTC | Jul 7, 08:35 UTC | 15m |
| 2026-07-05 | CES5714 | PKX → JHG | Jul 5, 06:15 UTC | Jul 5, 06:30 UTC | 15m |
| 2026-06-29 | CES5734 | - | Jun 29, 11:25 UTC | Jun 29, 12:14 UTC | 50m |
| 2026-06-28 | CES9728 | - | Jun 28, 05:55 UTC | Jun 28, 06:59 UTC | 1h 5m |
| 2026-06-23 | CES9710 | PVG → KMG | Jun 23, 13:00 UTC | Jun 23, 13:15 UTC | 15m |
| 2026-06-22 | CES7634 | - | Jun 22, 02:34 UTC | Jun 22, 03:30 UTC | 55m |
| 2026-06-20 | CES9742 | - | Jun 20, 15:29 UTC | Jun 21, 01:10 UTC | 9h 40m |
| 2026-06-19 | CES5734 | - | Jun 19, 11:59 UTC | Jun 19, 12:25 UTC | 25m |
| 2026-06-17 | CES9728 | - | Jun 17, 07:20 UTC | Jun 17, 07:45 UTC | 25m |
| 2026-06-17 | CES9728 | - | Jun 17, 06:25 UTC | Jun 17, 06:45 UTC | 20m |
| 2026-06-17 | CES9727 | - | Jun 17, 04:20 UTC | Jun 17, 04:40 UTC | 20m |
| 2026-06-16 | CES7614 | CAN → DLU | Jun 16, 08:25 UTC | Jun 16, 12:30 UTC | 4h 5m |
| 2026-06-14 | CES5734 | - | Jun 14, 12:10 UTC | Jun 14, 12:25 UTC | 15m |
| 2026-06-12 | CES9728 | PVG → KMG | Jun 12, 05:30 UTC | Jun 12, 06:35 UTC | 1h 5m |
| 2026-06-12 | CES9727 | KMG → PVG | Jun 12, 03:20 UTC | Jun 12, 03:30 UTC | 10m |
| 2026-06-10 | CES9616 | HKG → KMG | Jun 10, 06:20 UTC | Jun 10, 06:40 UTC | 20m |
| 2026-06-10 | CES9615 | KMG → HKG | Jun 10, 03:35 UTC | Jun 10, 05:05 UTC | 1h 30m |
| 2026-06-07 | CES9728 | PVG → KMG | Jun 7, 06:15 UTC | Jun 7, 06:30 UTC | 15m |
| 2026-06-07 | CES9728 | PVG → KMG | Jun 7, 05:30 UTC | Jun 7, 05:40 UTC | 10m |
| 2026-06-05 | CES9616 | HKG → KMG | Jun 5, 05:45 UTC | Jun 5, 06:30 UTC | 45m |
| 2026-05-31 | CES5474 | ZHA → KMG | May 31, 09:20 UTC | May 31, 09:30 UTC | 10m |
| 2026-04-19 | - | - | Apr 19, 11:25 UTC | Apr 19, 11:35 UTC | 10m |
| 2026-04-16 | CES5758 | SZX → KMG | Apr 16, 10:45 UTC | Apr 16, 10:59 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-5245 page for operator, model, and routing details .