sensors Mode-S transponder
7812F1
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1369 · BOEING 737-800
- Hex
- 7812F1
- Octal
- 36011361
- Decimal
- 7,869,169
- Country
- CN
- Tail
- B-1369
- Type
- B738
- Flights observed
- 60
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- Jul 26, 11:25 UTC
Last known position
Country allocation
The ICAO 24-bit address 7812F1 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 |
|---|---|---|---|
| CXA8790 | - | 5 | 2026-07-24 |
| CXA869 | Xiamen Airlines | 4 | 2026-05-02 |
| CXA8526 | - | 4 | 2026-07-22 |
| CXA8221 | - | 4 | 2026-06-12 |
| CXA8818 | - | 3 | 2026-06-15 |
| CXA8094 | - | 3 | 2026-07-22 |
| CXA8698 | Xiamen Airlines | 2 | 2026-05-06 |
| CXA8543 | - | 2 | 2026-07-18 |
| CXA8343 | - | 2 | 2026-07-01 |
| CXA8222 | - | 2 | 2026-06-12 |
| CXA8070 | - | 2 | 2026-06-22 |
| CXA8032 | Xiamen Airlines | 2 | 2026-04-13 |
| CXA895 | Xiamen Airlines | 1 | 2026-05-01 |
| CXA8867 | - | 1 | 2026-05-22 |
| CXA8789 | - | 1 | 2026-07-23 |
| CXA8727 | - | 1 | 2026-07-15 |
| CXA8697 | - | 1 | 2026-07-12 |
| CXA8692 | - | 1 | 2026-05-30 |
| CXA8691 | - | 1 | 2026-05-30 |
| CXA8616 | - | 1 | 2026-04-22 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CXA8277 | - | Jul 26, 11:05 UTC | Jul 26, 11:25 UTC | 20m |
| 2026-07-24 | CXA8361 | - | Jul 24, 11:15 UTC | Jul 24, 14:20 UTC | 3h 5m |
| 2026-07-24 | CXA8790 | - | Jul 24, 08:30 UTC | Jul 24, 09:10 UTC | 40m |
| 2026-07-23 | CXA8789 | - | Jul 23, 07:35 UTC | Jul 24, 02:15 UTC | 18h 40m |
| 2026-07-22 | CXA8094 | - | Jul 22, 12:50 UTC | Jul 23, 02:25 UTC | 13h 35m |
| 2026-07-22 | CXA8094 | - | Jul 22, 05:15 UTC | Jul 23, 02:25 UTC | 21h 10m |
| 2026-07-22 | CXA8526 | - | Jul 22, 01:45 UTC | Jul 22, 12:55 UTC | 11h 10m |
| 2026-07-20 | - | - | Jul 20, 14:00 UTC | Jul 20, 14:10 UTC | 10m |
| 2026-07-20 | CXA8044 | CGQ → HGH | Jul 20, 07:15 UTC | Jul 20, 08:00 UTC | 45m |
| 2026-07-18 | CXA8543 | - | Jul 18, 22:50 UTC | Jul 18, 23:25 UTC | 35m |
| 2026-07-18 | CXA8060 | - | Jul 18, 12:35 UTC | Jul 18, 13:00 UTC | 25m |
| 2026-07-17 | CXA8526 | - | Jul 17, 01:49 UTC | Jul 17, 02:25 UTC | 35m |
| 2026-07-16 | CXA8526 | - | Jul 16, 04:45 UTC | Jul 17, 02:25 UTC | 21h 40m |
| 2026-07-15 | CXA8727 | - | Jul 15, 14:05 UTC | Jul 16, 04:55 UTC | 14h 50m |
| 2026-07-14 | CXA8526 | - | Jul 14, 01:45 UTC | Jul 14, 02:20 UTC | 35m |
| 2026-07-12 | CXA8697 | - | Jul 12, 02:20 UTC | Jul 12, 02:35 UTC | 15m |
| 2026-07-05 | CXA8088 | - | Jul 5, 23:25 UTC | Jul 6, 00:10 UTC | 45m |
| 2026-07-05 | CXA8790 | - | Jul 5, 01:55 UTC | Jul 5, 07:55 UTC | 6h 0m |
| 2026-07-01 | CXA8343 | - | Jul 1, 13:20 UTC | Jul 1, 13:40 UTC | 20m |
| 2026-06-28 | CXA8344 | - | Jun 28, 15:55 UTC | Jun 28, 16:09 UTC | 15m |
| 2026-06-28 | CXA8343 | - | Jun 28, 14:14 UTC | Jun 28, 14:39 UTC | 25m |
| 2026-06-22 | CXA8070 | - | Jun 22, 12:19 UTC | Jun 23, 07:09 UTC | 18h 50m |
| 2026-06-22 | CXA8070 | - | Jun 22, 12:05 UTC | Jun 23, 07:09 UTC | 19h 5m |
| 2026-06-20 | - | - | Jun 20, 11:20 UTC | Jun 20, 12:04 UTC | 45m |
| 2026-06-18 | CXA8094 | - | Jun 18, 01:50 UTC | Jun 18, 02:30 UTC | 40m |
| 2026-06-15 | CXA8818 | - | Jun 15, 09:10 UTC | Jun 16, 02:34 UTC | 17h 25m |
| 2026-06-15 | CXA8818 | - | Jun 15, 01:10 UTC | Jun 15, 09:54 UTC | 8h 45m |
| 2026-06-13 | CXA8093 | - | Jun 13, 15:00 UTC | Jun 14, 09:45 UTC | 18h 45m |
| 2026-06-12 | CXA8221 | - | Jun 12, 05:50 UTC | Jun 12, 06:00 UTC | 10m |
| 2026-06-12 | CXA8222 | - | Jun 12, 03:55 UTC | Jun 12, 04:05 UTC | 10m |
| 2026-06-10 | CXA828 | MNL → XMN | Jun 10, 05:15 UTC | Jun 10, 05:40 UTC | 25m |
| 2026-06-10 | CXA827 | XMN → MNL | Jun 10, 02:15 UTC | Jun 10, 03:35 UTC | 1h 20m |
| 2026-06-09 | CXA8221 | - | Jun 9, 05:35 UTC | Jun 9, 05:45 UTC | 10m |
| 2026-06-05 | CXA820 | MNL → XMN | Jun 5, 16:10 UTC | Jun 5, 17:20 UTC | 1h 10m |
| 2026-06-05 | CXA819 | XMN → MNL | Jun 5, 14:20 UTC | Jun 5, 14:50 UTC | 30m |
| 2026-05-30 | CXA8692 | - | May 30, 06:40 UTC | May 30, 06:55 UTC | 15m |
| 2026-05-30 | CXA8691 | - | May 30, 03:55 UTC | May 30, 04:30 UTC | 35m |
| 2026-05-28 | CXA8076 | CGQ → NGB | May 28, 06:30 UTC | May 28, 10:40 UTC | 4h 10m |
| 2026-05-22 | CXA8867 | - | May 22, 01:00 UTC | May 22, 04:20 UTC | 3h 20m |
| 2026-05-20 | CXA8221 | - | May 20, 05:40 UTC | May 20, 05:50 UTC | 10m |
| 2026-05-17 | CXA8327 | PKX → CSX | May 17, 12:10 UTC | May 17, 12:25 UTC | 15m |
| 2026-05-06 | CXA8698 | HAN → FOC | May 6, 13:50 UTC | May 6, 14:10 UTC | 20m |
| 2026-05-06 | CXA8698 | HAN → FOC | May 6, 06:40 UTC | May 6, 10:40 UTC | 4h 0m |
| 2026-05-05 | CXA8523 | - | May 5, 14:10 UTC | May 6, 02:30 UTC | 12h 20m |
| 2026-05-02 | CXA869 | XMN → HAN | May 2, 05:50 UTC | May 2, 10:00 UTC | 4h 10m |
| 2026-05-01 | CXA869 | XMN → HAN | May 1, 08:20 UTC | May 2, 06:20 UTC | 22h 0m |
| 2026-05-01 | CXA869 | XMN → HAN | May 1, 08:10 UTC | May 2, 06:15 UTC | 22h 5m |
| 2026-05-01 | CXA895 | XMN → PNH | May 1, 01:20 UTC | May 1, 08:25 UTC | 7h 5m |
| 2026-04-25 | CXA8040 | - | Apr 25, 00:55 UTC | Apr 25, 01:30 UTC | 35m |
| 2026-04-24 | CXA8790 | - | Apr 24, 01:45 UTC | Apr 24, 08:05 UTC | 6h 20m |
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-1369 page for operator, model, and routing details .