sensors Mode-S transponder
346488
ICAO 24-bit transponder address · allocated to Spain
- Hex
- 346488
- Octal
- 15062210
- Decimal
- 3,433,608
- Country
- ES
- Flights observed
- 18
- Distinct callsigns
- 3
- Country
- ES
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address 346488 falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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 3 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CND5997 | Aero Continente Dominicana | 7 | 2026-07-26 |
| CND5990 | Aero Continente Dominicana | 4 | 2026-07-23 |
| CND5989 | - | 3 | 2026-07-08 |
Recent flights last 18
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CND5997 | BON → AMS | Jul 26, 09:15 UTC | Jul 26, 13:15 UTC | 4h 0m |
| 2026-07-23 | CND5990 | CUR → AMS | Jul 23, 08:45 UTC | Jul 23, 08:55 UTC | 10m |
| 2026-07-19 | CND5997 | - | Jul 19, 08:25 UTC | Jul 19, 13:25 UTC | 5h 0m |
| 2026-07-18 | - | - | Jul 18, 13:20 UTC | Jul 19, 08:35 UTC | 19h 15m |
| 2026-07-18 | - | - | Jul 18, 08:50 UTC | Jul 18, 13:30 UTC | 4h 40m |
| 2026-07-16 | - | - | Jul 16, 08:30 UTC | Jul 16, 08:40 UTC | 10m |
| 2026-07-15 | - | - | Jul 15, 13:20 UTC | Jul 16, 08:40 UTC | 19h 20m |
| 2026-07-12 | CND5990 | - | Jul 12, 08:45 UTC | Jul 12, 08:55 UTC | 10m |
| 2026-07-08 | CND5989 | - | Jul 8, 08:15 UTC | Jul 8, 13:10 UTC | 4h 55m |
| 2026-07-06 | CND5997 | - | Jul 6, 10:25 UTC | Jul 6, 10:35 UTC | 10m |
| 2026-07-05 | CND5997 | - | Jul 5, 13:30 UTC | Jul 6, 10:35 UTC | 21h 5m |
| 2026-06-28 | CND5997 | - | Jun 28, 08:44 UTC | Jun 28, 13:25 UTC | 4h 40m |
| 2026-06-24 | CND5997 | - | Jun 24, 08:20 UTC | Jun 24, 13:05 UTC | 4h 45m |
| 2026-06-21 | CND5997 | - | Jun 21, 13:24 UTC | Jun 22, 10:10 UTC | 20h 45m |
| 2026-06-21 | CND5990 | - | Jun 21, 08:30 UTC | Jun 21, 13:29 UTC | 5h 0m |
| 2026-06-20 | CND5989 | - | Jun 20, 12:59 UTC | Jun 21, 11:20 UTC | 22h 20m |
| 2026-06-17 | CND5989 | AMS → CUR | Jun 17, 12:55 UTC | Jun 17, 13:10 UTC | 15m |
| 2026-06-07 | CND5990 | CUR → AMS | Jun 7, 08:20 UTC | Jun 7, 08:30 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.