sensors Mode-S transponder
78120A
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1302 · BOEING 737-800
- Hex
- 78120A
- Octal
- 36011012
- Decimal
- 7,868,938
- Country
- CN
- Tail
- B-1302
- Type
- B738
- Flights observed
- 26
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 34m ago
Last known position
Country allocation
The ICAO 24-bit address 78120A 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 |
|---|---|---|---|
| CXA827 | Xiamen Airlines | 3 | 2026-04-30 |
| CXA8079 | Xiamen Airlines | 2 | 2026-04-25 |
| CXA8792 | Xiamen Airlines | 1 | 2026-05-05 |
| CXA8791 | Xiamen Airlines | 1 | 2026-05-05 |
| CXA878 | Xiamen Airlines | 1 | 2026-05-22 |
| CXA877 | Xiamen Airlines | 1 | 2026-05-21 |
| CXA8698 | Xiamen Airlines | 1 | 2026-05-24 |
| CXA8692 | - | 1 | 2026-04-18 |
| CXA8691 | - | 1 | 2026-04-18 |
| CXA864 | Xiamen Airlines | 1 | 2026-04-24 |
| CXA863 | Xiamen Airlines | 1 | 2026-04-24 |
| CXA8388 | Xiamen Airlines | 1 | 2026-05-05 |
| CXA8387 | Xiamen Airlines | 1 | 2026-05-04 |
| CXA8370 | Xiamen Airlines | 1 | 2026-04-16 |
| CXA8369 | Xiamen Airlines | 1 | 2026-04-16 |
| CXA8321 | Xiamen Airlines | 1 | 2026-05-31 |
| CXA828 | Xiamen Airlines | 1 | 2026-05-01 |
| CXA8230 | Xiamen Airlines | 1 | 2026-05-06 |
| CXA8229 | Xiamen Airlines | 1 | 2026-05-06 |
| CXA8222 | - | 1 | 2026-04-29 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | - | - | Jun 2, 09:25 UTC | Jun 3, 00:30 UTC | 15h 5m |
| 2026-05-31 | CXA8321 | HGH → SYX | May 31, 12:10 UTC | Jun 1, 04:20 UTC | 16h 10m |
| 2026-05-26 | - | - | May 26, 06:29 UTC | May 26, 07:05 UTC | 35m |
| 2026-05-24 | CXA8698 | HAN → FOC | May 24, 15:40 UTC | May 25, 02:15 UTC | 10h 35m |
| 2026-05-22 | CXA878 | ICN → FOC | May 22, 13:40 UTC | May 23, 05:20 UTC | 15h 39m |
| 2026-05-21 | CXA877 | FOC → ICN | May 21, 23:30 UTC | May 22, 12:30 UTC | 12h 59m |
| 2026-05-17 | CXA8060 | SHE → HGH | May 17, 10:40 UTC | May 17, 11:05 UTC | 25m |
| 2026-05-06 | CXA8230 | TSN → HGH | May 6, 12:01 UTC | May 6, 12:20 UTC | 20m |
| 2026-05-06 | CXA8229 | TSN → URC | May 6, 03:30 UTC | May 6, 03:50 UTC | 20m |
| 2026-05-05 | CXA8792 | HAK → FOC | May 5, 13:05 UTC | May 5, 13:15 UTC | 10m |
| 2026-05-05 | CXA8791 | FOC → HAK | May 5, 11:15 UTC | May 5, 11:40 UTC | 25m |
| 2026-05-05 | CXA8388 | SZX → HGH | May 5, 06:20 UTC | May 5, 06:30 UTC | 10m |
| 2026-05-04 | CXA8387 | HGH → SZX | May 4, 04:20 UTC | May 4, 04:39 UTC | 20m |
| 2026-05-01 | CXA828 | MNL → XMN | May 1, 04:20 UTC | May 1, 05:30 UTC | 1h 10m |
| 2026-04-30 | CXA827 | XMN → MNL | Apr 30, 06:45 UTC | May 1, 02:25 UTC | 19h 40m |
| 2026-04-29 | CXA8222 | - | Apr 29, 04:00 UTC | Apr 29, 04:10 UTC | 10m |
| 2026-04-25 | CXA8079 | XMN → DLC | Apr 25, 00:40 UTC | Apr 25, 14:25 UTC | 13h 45m |
| 2026-04-24 | CXA8079 | XMN → DLC | Apr 24, 15:30 UTC | Apr 25, 14:25 UTC | 22h 55m |
| 2026-04-24 | CXA864 | SIN → HGH | Apr 24, 13:30 UTC | Apr 25, 01:00 UTC | 11h 30m |
| 2026-04-24 | CXA863 | HGH → SIN | Apr 24, 04:05 UTC | Apr 24, 11:55 UTC | 7h 50m |
| 2026-04-24 | CXA827 | XMN → MNL | Apr 24, 01:25 UTC | Apr 24, 02:55 UTC | 1h 30m |
| 2026-04-23 | CXA827 | XMN → MNL | Apr 23, 06:55 UTC | Apr 24, 02:55 UTC | 19h 59m |
| 2026-04-18 | CXA8692 | - | Apr 18, 05:25 UTC | Apr 18, 05:35 UTC | 10m |
| 2026-04-18 | CXA8691 | - | Apr 18, 02:40 UTC | Apr 18, 03:15 UTC | 35m |
| 2026-04-16 | CXA8370 | ZUH → HGH | Apr 16, 02:54 UTC | Apr 16, 03:04 UTC | 10m |
| 2026-04-16 | CXA8369 | HGH → ZUH | Apr 16, 01:10 UTC | Apr 16, 01:25 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-1302 page for operator, model, and routing details .