sensors Mode-S transponder
780900
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6426 · AIRBUS A-319
- Hex
- 780900
- Octal
- 36004400
- Decimal
- 7,866,624
- Country
- CN
- Tail
- B-6426
- Type
- A319
- Flights observed
- 19
- Distinct callsigns
- 8
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 780900 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 8 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| TBA9918 | - | 10 | 2026-07-10 |
| TBA9822 | - | 3 | 2026-07-19 |
| TBA9917 | - | 1 | 2026-06-17 |
| TBA9821 | Transbrasil | 1 | 2026-06-06 |
| TBA6082 | - | 1 | 2026-07-13 |
| TBA6028 | - | 1 | 2026-07-07 |
| TBA6027 | - | 1 | 2026-07-07 |
| TBA6002 | Transbrasil | 1 | 2026-07-21 |
Recent flights last 19
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-21 | TBA6002 | SZX → LUM | Jul 21, 10:55 UTC | Jul 21, 11:05 UTC | 10m |
| 2026-07-19 | TBA9822 | - | Jul 19, 09:55 UTC | Jul 19, 10:15 UTC | 20m |
| 2026-07-13 | TBA6082 | - | Jul 13, 10:10 UTC | Jul 13, 10:20 UTC | 10m |
| 2026-07-10 | TBA9918 | - | Jul 10, 05:45 UTC | Jul 10, 06:00 UTC | 15m |
| 2026-07-07 | TBA6028 | - | Jul 7, 15:40 UTC | Jul 7, 15:55 UTC | 15m |
| 2026-07-07 | TBA6027 | - | Jul 7, 11:15 UTC | Jul 7, 11:25 UTC | 10m |
| 2026-06-21 | TBA9918 | - | Jun 21, 05:54 UTC | Jun 21, 06:10 UTC | 15m |
| 2026-06-17 | TBA9918 | - | Jun 17, 07:30 UTC | Jun 17, 07:40 UTC | 10m |
| 2026-06-17 | TBA9917 | - | Jun 17, 04:20 UTC | Jun 17, 04:25 UTC | 5m |
| 2026-06-13 | TBA9918 | - | Jun 13, 07:30 UTC | Jun 13, 07:40 UTC | 10m |
| 2026-06-12 | TBA9918 | - | Jun 12, 06:00 UTC | Jun 12, 06:10 UTC | 10m |
| 2026-06-11 | TBA9918 | - | Jun 11, 06:05 UTC | Jun 11, 06:15 UTC | 10m |
| 2026-06-07 | TBA9822 | SYX → CTU | Jun 7, 07:05 UTC | Jun 7, 10:05 UTC | 3h 0m |
| 2026-06-06 | TBA9822 | SYX → CTU | Jun 6, 10:04 UTC | Jun 7, 10:00 UTC | 23h 55m |
| 2026-06-06 | TBA9821 | CTU → SYX | Jun 6, 07:10 UTC | Jun 6, 07:35 UTC | 25m |
| 2026-06-01 | TBA9918 | - | Jun 1, 06:40 UTC | Jun 1, 06:50 UTC | 10m |
| 2026-05-26 | TBA9918 | - | May 26, 06:04 UTC | May 26, 06:14 UTC | 10m |
| 2026-04-29 | TBA9918 | - | Apr 29, 08:10 UTC | Apr 29, 08:25 UTC | 15m |
| 2026-04-20 | TBA9918 | - | Apr 20, 06:25 UTC | Apr 20, 06:45 UTC | 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-6426 page for operator, model, and routing details .