sensors Mode-S transponder
781193
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1456 · BOEING 737-800
- Hex
- 781193
- Octal
- 36010623
- Decimal
- 7,868,819
- Country
- CN
- Tail
- B-1456
- Type
- B738
- Flights observed
- 65
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 781193 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 |
|---|---|---|---|
| CXA8526 | - | 4 | 2026-07-09 |
| CXA860 | - | 3 | 2026-06-11 |
| CXA859 | - | 3 | 2026-06-11 |
| CXA8555 | - | 3 | 2026-06-24 |
| CXA8040 | - | 3 | 2026-07-16 |
| CXA8781 | - | 2 | 2026-07-15 |
| CXA8697 | Xiamen Airlines | 2 | 2026-04-26 |
| CXA8659 | - | 2 | 2026-07-11 |
| CXA8366 | Xiamen Airlines | 2 | 2026-06-15 |
| CXA833 | Xiamen Airlines | 2 | 2026-05-28 |
| CXA8315 | - | 2 | 2026-07-03 |
| CXA818 | - | 2 | 2026-05-19 |
| CXA817 | - | 2 | 2026-05-19 |
| CXA8872 | - | 1 | 2026-05-15 |
| CXA8871 | - | 1 | 2026-05-15 |
| CXA8868 | - | 1 | 2026-05-21 |
| CXA8818 | - | 1 | 2026-06-23 |
| CXA8790 | - | 1 | 2026-06-25 |
| CXA8784 | - | 1 | 2026-07-14 |
| CXA8783 | - | 1 | 2026-07-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | CXA8040 | - | Jul 16, 07:50 UTC | Jul 17, 01:25 UTC | 17h 35m |
| 2026-07-16 | CXA8040 | - | Jul 16, 04:25 UTC | Jul 17, 01:25 UTC | 21h 0m |
| 2026-07-15 | CXA8781 | - | Jul 15, 23:50 UTC | Jul 16, 00:05 UTC | 15m |
| 2026-07-14 | CXA8784 | - | Jul 14, 14:30 UTC | Jul 14, 14:40 UTC | 10m |
| 2026-07-14 | CXA8783 | - | Jul 14, 10:45 UTC | Jul 14, 11:50 UTC | 1h 5m |
| 2026-07-12 | CXA8669 | - | Jul 12, 09:45 UTC | Jul 12, 14:05 UTC | 4h 20m |
| 2026-07-11 | CXA8660 | - | Jul 11, 09:45 UTC | Jul 11, 10:20 UTC | 35m |
| 2026-07-11 | CXA8659 | - | Jul 11, 06:30 UTC | Jul 11, 08:20 UTC | 1h 50m |
| 2026-07-09 | CXA8526 | - | Jul 9, 02:00 UTC | Jul 9, 09:05 UTC | 7h 5m |
| 2026-07-08 | CXA8526 | - | Jul 8, 10:50 UTC | Jul 9, 09:05 UTC | 22h 15m |
| 2026-07-08 | CXA8310 | SYX → HGH | Jul 8, 10:30 UTC | Jul 9, 06:00 UTC | 19h 30m |
| 2026-07-05 | CXA8316 | - | Jul 5, 01:05 UTC | Jul 5, 13:00 UTC | 11h 55m |
| 2026-07-04 | CXA8230 | - | Jul 4, 12:10 UTC | Jul 4, 12:35 UTC | 25m |
| 2026-07-04 | CXA8229 | - | Jul 4, 04:10 UTC | Jul 4, 04:30 UTC | 20m |
| 2026-07-03 | CXA8315 | - | Jul 3, 00:55 UTC | Jul 3, 01:15 UTC | 20m |
| 2026-07-02 | CXA8370 | - | Jul 2, 02:50 UTC | Jul 2, 03:00 UTC | 10m |
| 2026-07-02 | CXA8369 | - | Jul 2, 00:55 UTC | Jul 2, 01:15 UTC | 20m |
| 2026-06-29 | CXA8181 | - | Jun 29, 03:39 UTC | Jun 29, 13:14 UTC | 9h 35m |
| 2026-06-29 | CXA8315 | - | Jun 29, 00:44 UTC | Jun 29, 01:00 UTC | 15m |
| 2026-06-27 | CXA8044 | - | Jun 27, 06:50 UTC | Jun 27, 07:34 UTC | 45m |
| 2026-06-25 | CXA8790 | - | Jun 25, 14:20 UTC | Jun 26, 02:44 UTC | 12h 25m |
| 2026-06-24 | CXA8555 | - | Jun 24, 00:40 UTC | Jun 24, 09:29 UTC | 8h 50m |
| 2026-06-23 | CXA8818 | - | Jun 23, 09:14 UTC | Jun 24, 01:09 UTC | 15h 55m |
| 2026-06-23 | CXA8555 | - | Jun 23, 00:50 UTC | Jun 24, 00:40 UTC | 23h 50m |
| 2026-06-23 | CXA8555 | - | Jun 23, 00:35 UTC | Jun 23, 09:54 UTC | 9h 20m |
| 2026-06-22 | CXA8097 | - | Jun 22, 12:05 UTC | Jun 22, 12:19 UTC | 15m |
| 2026-06-20 | CXA8696 | - | Jun 20, 07:39 UTC | Jun 20, 12:50 UTC | 5h 10m |
| 2026-06-15 | CXA8366 | SZX → TSN | Jun 15, 16:49 UTC | Jun 15, 16:59 UTC | 10m |
| 2026-06-14 | CXA8366 | SZX → TSN | Jun 14, 14:40 UTC | Jun 14, 14:50 UTC | 10m |
| 2026-06-14 | CXA8365 | TSN → SZX | Jun 14, 12:25 UTC | Jun 14, 12:40 UTC | 15m |
| 2026-06-11 | CXA860 | - | Jun 11, 08:50 UTC | Jun 11, 10:00 UTC | 1h 10m |
| 2026-06-11 | CXA859 | - | Jun 11, 05:50 UTC | Jun 11, 07:05 UTC | 1h 15m |
| 2026-06-10 | CXA8526 | - | Jun 10, 08:15 UTC | Jun 11, 02:10 UTC | 17h 55m |
| 2026-06-08 | CXA860 | - | Jun 8, 10:00 UTC | Jun 8, 14:25 UTC | 4h 25m |
| 2026-06-08 | CXA860 | - | Jun 8, 08:55 UTC | Jun 8, 09:10 UTC | 15m |
| 2026-06-08 | CXA859 | - | Jun 8, 06:00 UTC | Jun 8, 07:15 UTC | 1h 15m |
| 2026-06-07 | CXA859 | - | Jun 7, 10:00 UTC | Jun 8, 07:15 UTC | 21h 15m |
| 2026-06-07 | CXA8659 | - | Jun 7, 07:15 UTC | Jun 7, 08:20 UTC | 1h 5m |
| 2026-06-05 | CXA8040 | - | Jun 5, 09:25 UTC | Jun 6, 01:25 UTC | 16h 0m |
| 2026-06-04 | CXA8782 | SYX → FOC | Jun 4, 08:35 UTC | Jun 4, 09:30 UTC | 55m |
| 2026-06-03 | CXA8781 | SHE → FOC | Jun 3, 09:00 UTC | Jun 4, 04:35 UTC | 19h 35m |
| 2026-05-28 | CXA834 | BKK → XMN | May 28, 10:45 UTC | May 28, 13:05 UTC | 2h 20m |
| 2026-05-28 | CXA833 | XMN → BKK | May 28, 01:50 UTC | May 28, 09:00 UTC | 7h 10m |
| 2026-05-27 | CXA833 | XMN → BKK | May 27, 13:55 UTC | May 28, 09:00 UTC | 19h 5m |
| 2026-05-21 | CXA8868 | - | May 21, 00:55 UTC | May 21, 04:05 UTC | 3h 10m |
| 2026-05-19 | CXA818 | - | May 19, 10:10 UTC | May 19, 11:30 UTC | 1h 20m |
| 2026-05-19 | CXA817 | - | May 19, 06:55 UTC | May 19, 08:35 UTC | 1h 40m |
| 2026-05-15 | CXA8384 | SZX → KHN | May 15, 22:55 UTC | May 15, 23:05 UTC | 10m |
| 2026-05-15 | - | - | May 15, 14:45 UTC | May 15, 14:55 UTC | 9m |
| 2026-05-15 | CXA8623 | - | May 15, 10:15 UTC | May 15, 10:25 UTC | 10m |
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-1456 page for operator, model, and routing details .