sensors Mode-S transponder
300500
ICAO 24-bit transponder address · allocated to Italy
Currently assigned to I-NEMO · DASSAULT Falcon 900
- Hex
- 300500
- Octal
- 14002400
- Decimal
- 3,147,008
- Country
- IT
- Tail
- I-NEMO
- Type
- F900
- Flights observed
- 54
- Distinct callsigns
- 20
- Country
- IT
- Last broadcast
- 52m ago
Last known position
Country allocation
The ICAO 24-bit address 300500 falls within the block assigned to Italy (IT) by ICAO Annex 10, Volume III. Every aircraft registered in Italy 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 |
|---|---|---|---|
| CPI131 | - | 5 | 2026-06-13 |
| CPI041 | - | 3 | 2026-05-05 |
| CPI293 | - | 2 | 2026-06-29 |
| CPI291 | - | 2 | 2026-06-29 |
| CPI288 | - | 2 | 2026-04-28 |
| CPI275 | - | 2 | 2026-05-27 |
| CPI244 | - | 2 | 2026-04-25 |
| CPI219 | - | 2 | 2026-05-21 |
| CPI212 | - | 2 | 2026-04-21 |
| CPI211 | - | 2 | 2026-04-21 |
| CPI205 | - | 2 | 2026-04-20 |
| CPI204 | - | 2 | 2026-05-20 |
| CPI192 | - | 2 | 2026-04-19 |
| CPI191 | - | 2 | 2026-04-19 |
| CPI181 | - | 2 | 2026-05-18 |
| CPI141 | - | 2 | 2026-07-14 |
| CPI132 | - | 2 | 2026-04-13 |
| CPI125 | - | 2 | 2026-05-12 |
| CPI115 | - | 2 | 2026-07-11 |
| CPI073 | - | 2 | 2026-07-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | CPI141 | - | Jul 14, 09:10 UTC | Jul 14, 10:00 UTC | 50m |
| 2026-07-14 | CPI141 | - | Jul 14, 07:30 UTC | Jul 14, 08:15 UTC | 45m |
| 2026-07-11 | CPI115 | - | Jul 11, 12:10 UTC | Jul 11, 17:10 UTC | 5h 0m |
| 2026-07-11 | CPI115 | - | Jul 11, 06:05 UTC | Jul 11, 11:20 UTC | 5h 15m |
| 2026-07-07 | CPI073 | LIN → CIA | Jul 7, 11:50 UTC | Jul 7, 12:35 UTC | 45m |
| 2026-07-07 | CPI073 | - | Jul 7, 07:15 UTC | Jul 7, 08:05 UTC | 50m |
| 2026-07-03 | CPI015 | - | Jul 3, 08:15 UTC | Jul 3, 12:20 UTC | 4h 5m |
| 2026-07-01 | CPI017 | - | Jul 1, 10:40 UTC | Jul 1, 12:10 UTC | 1h 30m |
| 2026-07-01 | CPI017 | - | Jul 1, 08:40 UTC | Jul 1, 10:05 UTC | 1h 25m |
| 2026-06-29 | CPI293 | - | Jun 29, 11:20 UTC | Jun 29, 13:04 UTC | 1h 45m |
| 2026-06-29 | CPI293 | - | Jun 29, 09:05 UTC | Jun 29, 10:50 UTC | 1h 45m |
| 2026-06-29 | CPI291 | AHO → CIA | Jun 29, 07:20 UTC | Jun 29, 07:59 UTC | 40m |
| 2026-06-29 | CPI291 | - | Jun 29, 06:29 UTC | Jun 29, 07:05 UTC | 35m |
| 2026-06-18 | CPI189 | - | Jun 18, 17:05 UTC | Jun 18, 19:00 UTC | 1h 55m |
| 2026-06-17 | CPI179 | - | Jun 17, 11:00 UTC | Jun 17, 19:55 UTC | 8h 55m |
| 2026-06-15 | CPI151 | - | Jun 15, 05:50 UTC | Jun 15, 08:15 UTC | 2h 25m |
| 2026-06-13 | CPI131 | - | Jun 13, 06:00 UTC | Jun 13, 13:45 UTC | 7h 45m |
| 2026-06-05 | CPI051 | REG → CIA | Jun 5, 12:10 UTC | Jun 5, 13:00 UTC | 50m |
| 2026-06-05 | CPI051 | - | Jun 5, 07:45 UTC | Jun 5, 08:25 UTC | 40m |
| 2026-06-03 | CPI031 | - | Jun 3, 15:55 UTC | Jun 3, 17:25 UTC | 1h 30m |
| 2026-05-27 | CPI275 | TRN → CIA | May 27, 07:45 UTC | May 27, 08:35 UTC | 50m |
| 2026-05-27 | CPI275 | - | May 27, 06:29 UTC | May 27, 07:20 UTC | 51m |
| 2026-05-21 | CPI219 | - | May 21, 15:25 UTC | May 21, 16:10 UTC | 45m |
| 2026-05-21 | CPI219 | - | May 21, 08:00 UTC | May 21, 08:45 UTC | 45m |
| 2026-05-20 | CPI204 | - | May 20, 14:15 UTC | May 20, 15:35 UTC | 1h 20m |
| 2026-05-20 | CPI204 | - | May 20, 11:30 UTC | May 20, 12:45 UTC | 1h 15m |
| 2026-05-18 | CPI181 | - | May 18, 15:10 UTC | May 18, 15:55 UTC | 45m |
| 2026-05-18 | CPI181 | - | May 18, 10:00 UTC | May 18, 10:45 UTC | 45m |
| 2026-05-12 | CPI125 | LIN → CIA | May 12, 12:20 UTC | May 12, 13:00 UTC | 40m |
| 2026-05-12 | CPI125 | - | May 12, 08:10 UTC | May 12, 09:10 UTC | 1h 0m |
| 2026-05-07 | CPI071 | - | May 7, 07:00 UTC | May 7, 09:10 UTC | 2h 10m |
| 2026-05-05 | CPI041 | - | May 5, 15:30 UTC | May 5, 19:05 UTC | 3h 35m |
| 2026-05-04 | CPI041 | - | May 4, 16:05 UTC | May 5, 16:00 UTC | 23h 56m |
| 2026-05-04 | CPI041 | - | May 4, 13:25 UTC | May 4, 16:35 UTC | 3h 10m |
| 2026-04-28 | CPI288 | - | Apr 28, 11:55 UTC | Apr 28, 12:45 UTC | 50m |
| 2026-04-28 | CPI288 | - | Apr 28, 07:50 UTC | Apr 28, 08:35 UTC | 45m |
| 2026-04-25 | CPI244 | AUH → CIA | Apr 25, 11:00 UTC | Apr 25, 17:45 UTC | 6h 45m |
| 2026-04-25 | CPI244 | - | Apr 25, 04:10 UTC | Apr 25, 09:45 UTC | 5h 35m |
| 2026-04-21 | CPI212 | - | Apr 21, 12:50 UTC | Apr 21, 13:25 UTC | 35m |
| 2026-04-21 | CPI212 | - | Apr 21, 11:55 UTC | Apr 21, 12:45 UTC | 50m |
| 2026-04-21 | CPI211 | - | Apr 21, 09:10 UTC | Apr 21, 10:50 UTC | 1h 40m |
| 2026-04-21 | CPI211 | - | Apr 21, 07:00 UTC | Apr 21, 08:40 UTC | 1h 40m |
| 2026-04-20 | CPI205 | - | Apr 20, 12:25 UTC | Apr 20, 19:35 UTC | 7h 11m |
| 2026-04-20 | CPI205 | - | Apr 20, 05:55 UTC | Apr 20, 11:05 UTC | 5h 10m |
| 2026-04-19 | CPI192 | - | Apr 19, 11:15 UTC | Apr 19, 12:55 UTC | 1h 40m |
| 2026-04-19 | CPI192 | - | Apr 19, 09:10 UTC | Apr 19, 10:50 UTC | 1h 40m |
| 2026-04-19 | CPI191 | - | Apr 19, 07:30 UTC | Apr 19, 08:05 UTC | 35m |
| 2026-04-19 | CPI191 | - | Apr 19, 06:30 UTC | Apr 19, 07:05 UTC | 35m |
| 2026-04-13 | CPI132 | - | Apr 13, 13:10 UTC | Apr 13, 13:45 UTC | 35m |
| 2026-04-13 | CPI132 | - | Apr 13, 12:20 UTC | Apr 13, 12:55 UTC | 35m |
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 I-NEMO page for operator, model, and routing details .