sensors Mode-S transponder
300A5C
ICAO 24-bit transponder address · allocated to Italy
- Hex
- 300A5C
- Octal
- 14005134
- Decimal
- 3,148,380
- Country
- IT
- Flights observed
- 198
- Distinct callsigns
- 20
- Country
- IT
- Last broadcast
- 17m ago
Current position
Country allocation
The ICAO 24-bit address 300A5C 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 |
|---|---|---|---|
| LSI252 | - | 25 | 2026-06-28 |
| LSI220 | - | 19 | 2026-07-13 |
| LSI251 | - | 18 | 2026-06-28 |
| LSI219 | - | 13 | 2026-07-12 |
| LSI166 | - | 11 | 2026-06-03 |
| LSI192 | - | 10 | 2026-06-01 |
| LSI191 | - | 10 | 2026-05-31 |
| LSI155 | - | 10 | 2026-06-26 |
| LSI177 | - | 9 | 2026-06-02 |
| LSI144 | - | 9 | 2026-06-14 |
| LSI143 | - | 9 | 2026-06-13 |
| LSI156 | - | 8 | 2026-06-27 |
| LSI126 | - | 6 | 2026-06-23 |
| LSI965 | - | 4 | 2026-06-18 |
| LSI377 | - | 4 | 2026-07-14 |
| LSI376 | - | 4 | 2026-07-14 |
| LSI138 | - | 4 | 2026-06-25 |
| LSI125 | - | 4 | 2026-06-22 |
| LSI137 | - | 3 | 2026-06-24 |
| LSI996 | - | 2 | 2026-06-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | LSI377 | - | Jul 14, 06:40 UTC | Jul 14, 07:00 UTC | 20m |
| 2026-07-14 | LSI376 | - | Jul 14, 02:50 UTC | Jul 14, 03:55 UTC | 1h 5m |
| 2026-07-13 | LSI220 | - | Jul 13, 19:15 UTC | Jul 13, 23:40 UTC | 4h 25m |
| 2026-07-12 | LSI220 | - | Jul 12, 21:05 UTC | Jul 13, 20:35 UTC | 23h 30m |
| 2026-07-12 | LSI219 | - | Jul 12, 19:20 UTC | Jul 12, 21:30 UTC | 2h 10m |
| 2026-07-12 | LSI220 | - | Jul 12, 07:55 UTC | Jul 12, 12:15 UTC | 4h 20m |
| 2026-07-11 | LSI220 | - | Jul 11, 11:10 UTC | Jul 12, 11:01 UTC | 23h 50m |
| 2026-07-11 | LSI219 | - | Jul 11, 09:05 UTC | Jul 12, 09:00 UTC | 23h 55m |
| 2026-07-11 | LSI219 | - | Jul 11, 08:10 UTC | Jul 11, 11:40 UTC | 3h 30m |
| 2026-07-07 | LSI377 | - | Jul 7, 08:00 UTC | Jul 7, 09:05 UTC | 1h 5m |
| 2026-07-07 | LSI376 | - | Jul 7, 04:45 UTC | Jul 7, 05:50 UTC | 1h 5m |
| 2026-07-06 | LSI220 | - | Jul 6, 22:05 UTC | Jul 7, 02:15 UTC | 4h 10m |
| 2026-07-06 | LSI220 | - | Jul 6, 01:15 UTC | Jul 7, 01:00 UTC | 23h 45m |
| 2026-07-05 | LSI219 | - | Jul 5, 22:05 UTC | Jul 6, 01:30 UTC | 3h 25m |
| 2026-07-05 | LSI220 | - | Jul 5, 08:25 UTC | Jul 5, 12:45 UTC | 4h 20m |
| 2026-07-04 | LSI220 | - | Jul 4, 11:25 UTC | Jul 5, 11:00 UTC | 23h 35m |
| 2026-07-04 | LSI219 | - | Jul 4, 09:05 UTC | Jul 5, 09:00 UTC | 23h 55m |
| 2026-07-04 | LSI219 | - | Jul 4, 08:05 UTC | Jul 4, 11:40 UTC | 3h 35m |
| 2026-07-02 | LSI513 | ATL → MXP | Jul 2, 19:25 UTC | Jul 3, 04:15 UTC | 8h 50m |
| 2026-07-01 | LSI512 | - | Jul 1, 12:25 UTC | Jul 1, 21:50 UTC | 9h 25m |
| 2026-07-01 | LSI912 | - | Jul 1, 07:50 UTC | Jul 1, 08:50 UTC | 1h 0m |
| 2026-06-28 | LSI252 | - | Jun 28, 22:24 UTC | Jun 29, 11:50 UTC | 13h 25m |
| 2026-06-28 | LSI252 | - | Jun 28, 16:14 UTC | Jun 29, 11:50 UTC | 19h 35m |
| 2026-06-28 | LSI252 | - | Jun 28, 09:05 UTC | Jun 29, 08:54 UTC | 23h 50m |
| 2026-06-28 | LSI251 | - | Jun 28, 07:05 UTC | Jun 28, 22:39 UTC | 15h 35m |
| 2026-06-27 | LSI156 | - | Jun 27, 18:15 UTC | Jun 27, 21:55 UTC | 3h 40m |
| 2026-06-27 | LSI156 | - | Jun 27, 07:24 UTC | Jun 27, 07:34 UTC | 10m |
| 2026-06-26 | LSI155 | MXP → HKG | Jun 26, 16:35 UTC | Jun 27, 03:44 UTC | 11h 10m |
| 2026-06-25 | LSI138 | - | Jun 25, 22:34 UTC | Jun 26, 02:34 UTC | 4h 0m |
| 2026-06-25 | LSI138 | - | Jun 25, 11:50 UTC | Jun 25, 12:04 UTC | 15m |
| 2026-06-24 | LSI137 | - | Jun 24, 21:04 UTC | Jun 25, 08:24 UTC | 11h 20m |
| 2026-06-23 | LSI126 | - | Jun 23, 22:10 UTC | Jun 24, 02:09 UTC | 4h 0m |
| 2026-06-23 | LSI126 | - | Jun 23, 13:39 UTC | Jun 23, 13:55 UTC | 15m |
| 2026-06-22 | LSI125 | MXP → HKG | Jun 22, 23:35 UTC | Jun 23, 11:04 UTC | 11h 30m |
| 2026-06-21 | LSI252 | - | Jun 21, 22:49 UTC | Jun 22, 12:19 UTC | 13h 30m |
| 2026-06-21 | LSI252 | - | Jun 21, 16:25 UTC | Jun 22, 12:19 UTC | 19h 55m |
| 2026-06-21 | LSI251 | - | Jun 21, 09:04 UTC | Jun 22, 09:00 UTC | 23h 55m |
| 2026-06-21 | LSI251 | - | Jun 21, 07:20 UTC | Jun 21, 23:14 UTC | 15h 55m |
| 2026-06-20 | LSI198 | - | Jun 20, 20:09 UTC | Jun 20, 23:55 UTC | 3h 45m |
| 2026-06-20 | LSI198 | - | Jun 20, 09:44 UTC | Jun 20, 09:59 UTC | 15m |
| 2026-06-20 | LSI996 | - | Jun 20, 07:00 UTC | Jun 20, 07:44 UTC | 45m |
| 2026-06-19 | LSI996 | - | Jun 19, 19:45 UTC | Jun 19, 22:19 UTC | 2h 35m |
| 2026-06-19 | LSI196 | - | Jun 19, 12:44 UTC | Jun 19, 17:14 UTC | 4h 30m |
| 2026-06-19 | LSI196 | - | Jun 19, 01:59 UTC | Jun 19, 02:19 UTC | 20m |
| 2026-06-18 | LSI965 | - | Jun 18, 18:15 UTC | Jun 18, 18:45 UTC | 30m |
| 2026-06-18 | LSI965 | - | Jun 18, 07:30 UTC | Jun 18, 11:20 UTC | 3h 50m |
| 2026-06-18 | LSI364 | - | Jun 18, 04:10 UTC | Jun 18, 05:10 UTC | 1h 0m |
| 2026-06-17 | LSI220 | - | Jun 17, 19:10 UTC | Jun 17, 23:10 UTC | 4h 0m |
| 2026-06-16 | LSI220 | - | Jun 16, 21:05 UTC | Jun 17, 20:20 UTC | 23h 15m |
| 2026-06-16 | LSI219 | - | Jun 16, 19:05 UTC | Jun 16, 22:40 UTC | 3h 36m |
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.