sensors Mode-S transponder
7809B6
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-5707 · BOEING 737-800
- Hex
- 7809B6
- Octal
- 36004666
- Decimal
- 7,866,806
- Country
- CN
- Tail
- B-5707
- Type
- B738
- Flights observed
- 36
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 21h ago
Last known position
Country allocation
The ICAO 24-bit address 7809B6 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 |
|---|---|---|---|
| CXA885 | Xiamen Airlines | 5 | 2026-05-18 |
| CXA886 | Xiamen Airlines | 2 | 2026-05-17 |
| CXA8535 | - | 2 | 2026-05-15 |
| CXA8524 | Xiamen Airlines | 2 | 2026-05-19 |
| CXA8304 | Xiamen Airlines | 2 | 2026-05-30 |
| CXA8842 | Xiamen Airlines | 1 | 2026-04-30 |
| CXA8841 | Xiamen Airlines | 1 | 2026-04-30 |
| CXA8825 | Xiamen Airlines | 1 | 2026-05-24 |
| CXA8792 | Xiamen Airlines | 1 | 2026-04-24 |
| CXA8791 | Xiamen Airlines | 1 | 2026-04-24 |
| CXA8720 | Xiamen Airlines | 1 | 2026-05-05 |
| CXA872 | Xiamen Airlines | 1 | 2026-05-18 |
| CXA8719 | Xiamen Airlines | 1 | 2026-05-05 |
| CXA871 | - | 1 | 2026-05-17 |
| CXA8704 | Xiamen Airlines | 1 | 2026-05-06 |
| CXA8690 | Xiamen Airlines | 1 | 2026-04-17 |
| CXA8689 | Xiamen Airlines | 1 | 2026-04-17 |
| CXA858 | - | 1 | 2026-05-24 |
| CXA857 | - | 1 | 2026-05-24 |
| CXA8536 | - | 1 | 2026-05-16 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CXA8304 | SZX → CKG | May 30, 04:05 UTC | May 30, 04:15 UTC | 10m |
| 2026-05-30 | CXA8303 | CKG → SZX | May 30, 02:25 UTC | May 30, 02:35 UTC | 10m |
| 2026-05-24 | CXA858 | - | May 24, 18:40 UTC | May 24, 19:00 UTC | 20m |
| 2026-05-24 | CXA857 | - | May 24, 13:50 UTC | May 24, 17:10 UTC | 3h 20m |
| 2026-05-24 | CXA8825 | FOC → KWL | May 24, 00:45 UTC | May 24, 00:55 UTC | 10m |
| 2026-05-19 | CXA8524 | TAO → FOC | May 19, 01:15 UTC | May 19, 11:55 UTC | 10h 40m |
| 2026-05-18 | CXA885 | XMN → SIN | May 18, 10:35 UTC | May 18, 14:50 UTC | 4h 15m |
| 2026-05-18 | CXA872 | ICN → XMN | May 18, 04:51 UTC | May 18, 05:15 UTC | 25m |
| 2026-05-17 | CXA871 | - | May 17, 07:45 UTC | May 18, 03:20 UTC | 19h 35m |
| 2026-05-17 | CXA886 | SIN → XMN | May 17, 01:40 UTC | May 17, 02:00 UTC | 20m |
| 2026-05-16 | CXA885 | XMN → SIN | May 16, 10:46 UTC | May 16, 13:55 UTC | 3h 10m |
| 2026-05-16 | CXA8536 | - | May 16, 01:45 UTC | May 16, 07:25 UTC | 5h 41m |
| 2026-05-15 | CXA8535 | - | May 15, 07:15 UTC | May 16, 02:10 UTC | 18h 54m |
| 2026-05-15 | CXA8535 | - | May 15, 04:25 UTC | May 16, 02:10 UTC | 21h 44m |
| 2026-05-15 | CXA886 | SIN → XMN | May 15, 01:20 UTC | May 15, 07:15 UTC | 5h 55m |
| 2026-05-14 | CXA885 | XMN → SIN | May 14, 10:50 UTC | May 14, 14:05 UTC | 3h 15m |
| 2026-05-13 | CXA816 | NRT → XMN | May 13, 06:30 UTC | May 13, 07:50 UTC | 1h 20m |
| 2026-05-13 | CXA815 | XMN → NRT | May 13, 03:05 UTC | May 13, 04:35 UTC | 1h 30m |
| 2026-05-06 | CXA8704 | SIN → HGH | May 6, 07:10 UTC | May 6, 10:15 UTC | 3h 5m |
| 2026-05-05 | CXA8720 | MFM → HGH | May 5, 10:45 UTC | May 6, 04:55 UTC | 18h 10m |
| 2026-05-05 | CXA8719 | HGH → MFM | May 5, 08:45 UTC | May 5, 09:00 UTC | 15m |
| 2026-04-30 | CXA8842 | ZUH → FOC | Apr 30, 09:25 UTC | Apr 30, 09:35 UTC | 10m |
| 2026-04-30 | CXA8841 | FOC → ZUH | Apr 30, 07:45 UTC | Apr 30, 07:55 UTC | 10m |
| 2026-04-27 | CXA8304 | SZX → CKG | Apr 27, 04:00 UTC | Apr 27, 04:15 UTC | 15m |
| 2026-04-25 | CXA8315 | HGH → HAK | Apr 25, 01:00 UTC | Apr 25, 14:35 UTC | 13h 35m |
| 2026-04-24 | CXA8792 | HAK → FOC | Apr 24, 13:15 UTC | Apr 24, 13:25 UTC | 10m |
| 2026-04-24 | CXA8791 | FOC → HAK | Apr 24, 11:35 UTC | Apr 24, 11:55 UTC | 20m |
| 2026-04-23 | CXA8377 | SHA → SZX | Apr 23, 14:00 UTC | Apr 23, 14:15 UTC | 15m |
| 2026-04-23 | CXA8378 | SZX → SHA | Apr 23, 09:10 UTC | Apr 23, 09:20 UTC | 10m |
| 2026-04-23 | CXA8383 | KHN → SZX | Apr 23, 00:35 UTC | Apr 23, 00:50 UTC | 15m |
| 2026-04-17 | CXA8690 | TPE → HGH | Apr 17, 04:55 UTC | Apr 17, 05:15 UTC | 20m |
| 2026-04-17 | CXA8689 | HGH → TPE | Apr 17, 03:05 UTC | Apr 17, 03:15 UTC | 10m |
| 2026-04-14 | CXA8524 | TAO → FOC | Apr 14, 11:35 UTC | Apr 14, 12:10 UTC | 35m |
| 2026-04-14 | CXA8525 | XMN → TAO | Apr 14, 06:45 UTC | Apr 14, 07:10 UTC | 25m |
| 2026-04-13 | CXA885 | - | Apr 13, 13:35 UTC | Apr 13, 14:05 UTC | 30m |
| 2026-04-13 | CXA885 | - | Apr 13, 10:20 UTC | Apr 13, 10:55 UTC | 35m |
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-5707 page for operator, model, and routing details .